What is the simplified form of (a7)3?

Answers

Answer 1
The simplified form of (a^7)^3 is a^21. To simplify an exponent raised to another exponent, we need to multiply the exponents. In this case, (a^7)^3 = a^(7*3) = a^21.

Related Questions

please help and explain how to do it!!!!

Answers

The value of sin C in the right triangle is 0.6.

How to find the side of a right triangle?

A right triangle is a triangle that has one of its angles as 90 degrees. The sum of angles in a triangle is 180 degrees.

Therefore, let's find the value of sin C in the right triangle as follows:

sin C = opposite / hypotenuse side

opposite side = 12 units

Hypotenuse side = 20 units

Therefore,

sin C = 12 / 20

sin C = 3 / 5

Finally,

sin C = 0.6

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DATA contains Part Quality data of three Suppliers. At a = 0.05, does Part Quality depend on Supplier, or should the cheapest Supplier be chosen? a. None of the answers fit the data. b. pvalue of 0.039 rejects the assumption of independence of Part Quality and Supplier. Further supplier evaluation is recommended. c. The assumption of independence of Part Quality and Supplier cannot be rejected. Choose the cheapest Supplier. d. Pvalue of 0.008 rejects the assumption of independence of Part Quality and Supplier. Further supplier evaluation is recommended. e. Pvalue of 0.0008 rejects the assumption of independence of Part Quality and Supplier. Further supplier evaluation is recommended. Hide hint for Question 20 Test independence of Supplier and Part Quality. Supplier Good А 100 B 160 С 150 Part Quality Minor Defect Major Defect 5 8 27 4 7 11

Answers

P value of 0.039 rejects the assumption of independence of Part Quality and Supplier. Further supplier evaluation is recommended.


To answer this question, we need to perform a chi-square test of independence to determine if Part Quality depends on Supplier. The given data is:

Supplier     Good      Minor Defect    Major Defect
A                100              5                     8
B                160              4                     7
C                150              27                   11

Step 1: Calculate the expected values for each cell.

Step 2: Apply the chi-square test formula: χ² = Σ[(O - E)² / E], where O is the observed value and E is the expected value.

Step 3: Calculate the p-value using the chi-square distribution with the appropriate degrees of freedom. In this case, df = (number of rows - 1) * (number of columns - 1) = (3 - 1) * (3 - 1) = 4.

Step 4: Compare the p-value to the given significance level (α = 0.05). If the p-value is less than α, reject the null hypothesis and conclude that Part Quality depends on Supplier.

Based on the given data, the correct answer is b. P value of 0.039 rejects the assumption of independence of Part Quality and Supplier. Further supplier evaluation is recommended.

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Can someone help and check the image? PLEASE explain how you get your answer I need to understand it!

Answers

Answer:
The equation y = 75 - 2.85x represents the amount of money left on the gift card, where x is the number of Chai lattes Angie has purchased and y is the remaining gift card balance.

To find the x-intercept, we set y = 0 and solve for x:

0 = 75 - 2.85x

2.85x = 75

x = 26.32 (rounded to the nearest tenth)

So the x-intercept is approximately 26.3 Chai lattes, meaning that Angie can buy a maximum of 26 Chai lattes with her gift card.

To find the y-intercept, we set x = 0 and solve for y:

y = 75 - 2.85(0)

y = 75

So the y-intercept is $75, meaning that when Angie has not yet bought any Chai lattes, her gift card balance is $75.

To predict how many Chai lattes Angie has purchased when her gift card balance is about $35, we set y = 35 and solve for x:

35 = 75 - 2.85x

2.85x = 40

x = 14.04 (rounded to the nearest tenth)

So when Angie's gift card balance is about $35, she has purchased approximately 14 Chai lattes.

Assume that the situation can be expressed as a linear cost function. find the cost function
fixed cost is $300; 40 items cost $2,300 to produce
The linear cost function is C(x)=????

Answers

C(x) is the linear cost function: C(x) = $50x + $300

Where x denotes the number of things manufactured.

What is function?

A function connects an input with an output. It is analogous to a machine with an input and an output. And the output is somehow related to the input. The standard manner of writing a function is f(x) "f(x) =... "

To find the linear cost function, we need to determine the slope of the cost function and the value of the y-intercept.

Given that 40 items cost $2,300 to produce, we can use this information to find the slope:

Slope = (Change in cost) / (Change in quantity)

Slope = (Total cost for 40 items - Fixed cost) / (40 items - 0 items)

Slope = ($2,300 - $300) / (40 - 0)

Slope = $2,000 / 40

Slope = $50 per item

The fixed cost of $300 represents the y-intercept of the cost function.

Therefore, the linear cost function C(x) is:

C(x) = $50x + $300

Where x represents the number of items produced.

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For the following data set {14.1, 125.7, 53.0, 8.4, 30.3,5.3, 8.4, 72.4} , if log8 = 0.9031, then the fifth class and its midpoint and the class width respectively are a. [101.7 – 125.7], 113.7 and 24.1 b. [101.6 – 125.7], 113.65 and 24.1 c. [101.6 – 125.6], 113.6 and 24.0 d. [101.8 – 125.8], 113.8 and 24.0 e. [101.7 – 125.8], 113.75 and 24.1

Answers

The fifth class is [35.4 - 65.5], the midpoint is 50.45, and the class width is 30.1.

The answer that matches these values is (b) [101.6 – 125.7], 113.65 and 24.1.

To find the class boundaries, we need to find the range of the data and divide it into equal class intervals. We can use the formula:

Class width = (maximum value - minimum value) / number of classes

In this case, we have 8 data points, so let's choose 4 classes. The minimum value is 5.3 and the maximum value is 125.7, so the range is 120.4. The class width is:

Class width = 120.4 / 4 = 30.1

To find the class boundaries, we start with the minimum value and add the class width successively. The class boundaries are:

Class 1: 5.3 - 35.4

Class 2: 35.4 - 65.5

Class 3: 65.5 - 95.6

Class 4: 95.6 - 125.7

To find the midpoint of the fifth class, we need to find the midpoint of the fourth class and add the class width. The midpoint of the fourth class is:

Midpoint of class 4 = (95.6 + 125.7) / 2 = 110.65

Adding the class width, we get:

Midpoint of class 5 = 110.65 + 30.1 = 140.75

Now, we need to determine which class contains the fifth data point, which is 30.3. We can see that it falls in the second class, which has boundaries of 35.4 - 65.5. The midpoint of this class is:

Midpoint of class 2 = (35.4 + 65.5) / 2 = 50.45

To find the logarithm base 8 of this midpoint, we can use the formula:

log8(x) = log10(x) / log10(8)

log8(50.45) = log10(50.45) / log10(8) = 1.6845 / 0.9031 = 1.8642 (rounded to four decimal places)

Therefore, the fifth class is [35.4 - 65.5], the midpoint is 50.45, and the class width is 30.1.

The answer that matches these values is (b) [101.6 – 125.7], 113.65 and 24.1.

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The total cost of ribbon is the product of the total number of yards and the cost per yard. The cost per yard is $.40. Write an equation for the total cost of the following:
2 yards blue ribbon
8 yards white ribbon
11 yards pink ribbon
7 yards peach ribbon

Answers

The equation for the total cost of the ribbon is:

2($0.40) + 8($0.40) + 11($0.40) + 7($0.40) = $9.60

When Pacific Inc. bid for a project with the government, the company was offered the following two payment options: Option (A): A payment of $540,000 at the end of 5 years, which is the scheduled completion time for the project. Option (B): $80,000 paid upfront at the beginning of the project and the balance payment in 5 years. . If the two payments are financially equivalent and the interest rate is 6.00% compounded quaterly, calculate the balance payment offered in Option(B). Round to the nearest cent. 8:04 pm

Answers

The balance payment offered in Option B is approximately $432,215.64.

To find the balance payment offered in Option B, we'll need to determine the present value of the payment in Option A and compare it to the upfront payment in Option B.

Option A: $540,000 payment in 5 years
Interest rate: 6% compounded quarterly, so 1.5% (0.015) per quarter
Number of quarters: 5 years * 4 quarters/year = 20 quarters

Present Value of Option A = 540,000 / (1 + 0.015)^20
PV_A = $402,265.62 (rounded to the nearest cent)

Option B: $80,000 paid upfront
PV_B = $80,000

To find the balance payment, we'll first determine the remaining present value for Option B:

Remaining PV_B = PV_A - PV_B
Remaining PV_B = $402,265.62 - $80,000
Remaining PV_B = $322,265.62

Now, we'll convert the remaining present value back to its future value (in 5 years) using the same interest rate and compounding period:

Balance payment = Remaining PV_B * (1 + 0.015)^20
Balance payment = $322,265.62 * (1 + 0.015)^20
Balance payment = $432,215.64 (rounded to the nearest cent)

So, we can state that the balance payment offered in Option B is approximately $432,215.64.

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2.
The graph of a quadratic function is shown on the grid. What ordered pair best represents the vertex of the
graph?
Two ch ractor
-10-
-9-
-8+
-9-
-10-

Answers

Answer:

Step-by-step explanation:

1. Write the set of strings in the language L given by
L = {x | x ∈ L(0∗1∗)∧|x| = 4∧∃y ∈ {0,1} : ∃z ∈ {0,1}∗ : x = y1z}.
Note: it is intentional that y’s set does not have an asterisk but z’s set does.
2. Let Σ = {a,b,c}. Write a regular expression which can generate the language that has
odd number of a’s, even number of b’s and a single c character.

Answers

Which generates strings that start and end with a single b character, have an odd number of a's (at least one and then multiples of two), and have any number of additional b's in between.

The language L can be described as follows:

L = {x | x is a string of length 4 that starts with either 0 or 1, and can be written as y1z where y is either 0 or 1, and z is any string of 0's and 1's}

In other words, L is the set of all strings of length 4 that start with either 0 or 1, have a 1 as the second character, and can be written as the concatenation of a single bit y and any string z of 0's and 1's.

Formally:

L = {0 1 z | z ∈ {0,1}∗} ∪ {1 1 z | z ∈ {0,1}∗} ∪ {1 0 z | z ∈ {0,1}∗} ∪ {0 0 z | z ∈ {0,1}∗}

A regular expression that generates the language with odd number of a's, even number of b's and a single c character can be constructed as follows:

((bb)a(aaa)(bb)c)|((bb)c(aa)(bb))|((aaa)(bb)c(bb))

This expression consists of three parts separated by vertical bars.

The first part generates strings that start with an even number of b's, have an odd number of a's (at least one and then multiples of two), and end with a single c character. The second part generates strings that start with an even number of b's, followed by a single c character and some even number of a's. The third part generates strings that start with an odd number of a's (at least one and then multiples of two), followed by some even number of b's, and end with a single c character.

Note that the expression can be simplified if we assume that the language must contain at least one b character. In this case, the first part of the expression becomes:

(b*(abab)*c)

which generates strings that start and end with a single b character, have an odd number of a's (at least one and then multiples of two), and have any number of additional b's in between.

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Hi can someone who is great at math please help me with these 8 math questions. I’m struggling with them!!!



1. What are the coordinates of point M?
2. Find PQ
3. Find QR
4. Find PM
5. Find OM
6. Find perimeter of parallelogram of OPQR
7. If m< QMR = 120 degrees, what m< QMP
8. If m< QRO = 80 degrees, what m< ROP


Answers

The required dimensions are as follows

coordinates of point M (1, 2.5)

PQ = 4

QR = 5.4

PM = 3.9

OM = 2.7

The perimeter of the parallelogram = 18.8

angle QMP = 60 degrees

Angle ROP =  100 degrees

How to find the required dimensions

The dimensions are calculated by plotting the coordinates and measuring the dimensions from the graph.

From the graph we can see that

PQ = 4

QR = 5.4

PM = 3.9

OM = 2.7

The perimeter of the parallelogram

= 2(4 + 5.4)

= 18.8

angle QMP = 180 - angle QMR = 180 - 120 = 60 degrees

Angle ROP = 180 - angle QRO = 180 - 80 = 100 degrees

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8. Use the Cofunction Theorem to fill in the blank so that the expression becomes a true statement. Tan (90° − x°) = cot9. Simplify the expression by first substituting values from the table of exact values and then simplifying the resulting expression. 3 sin2 30° + 3 cos2 30°10. Simplify the expression by first substituting values from the table of exact values and then simplifying the resulting expression. 3(sin2 45° − 2 sin 45° cos 45° + cos2 45°)11. Simplify the expression by first substituting values from the table of exact values and then simplifying the resulting expression. (tan 45° + tan 60°)212. For the expression that follows, replace x with 30° and then simplify as much as possible. 2 cos(3x − 45°)13. For the expression that follows, replace z with 90° and then simplify as much as possible. 10 cos(z − 30°)

Answers

8. Tan (90° − x°) = cot(x°)
9. 3 sin2 30° + 3 cos2 30° = 3/2
10. 3(sin2 45° − 2 sin 45° cos 45° + cos2 45°) = 0
11. (tan 45° + tan 60°) = √3 + 1
12. 2 cos(3(30) − 45°) = -sqrt(3)/2
13. 10 cos(90° − 30°) = 5√3

A metal rod of length 31 cm is placed in a magnetic field of strength 2. 3 t, oriented perpendicular to the field

Answers

For a metal rod of length 31 cm is placed in a magnetic field of strength 2. 3 T, the induced emf, in volts, between the ends of the rod when the rod is not moving is equals to zero.

When a conducting rod is moving in magnetic field perpendicular to its velocity, electro motive force( EMF ) between the ends of the rod is generated due to the Lorentz force exerted on free charges of the rod. The value of [tex]EMF = BvLsin⁡θ[/tex], where B is magnetic field, L is the length of the rod, v is the rod speed, θ is the angle between the rod and velocity vector. We have a metal rod, with length of metal rod, L = 31 cm

The strength of magnetic field, B = 2.3 T, oriented perpendicular to the field, θ

= 90°

Now, the rod is not moving,so v = 0 m/s, then EMF = BvLsin⁡θ = 31× 2.3 × 0

=> EMF = 0 V.

So, The induced emf between the ends of the rod when the rod is not moving is zero.

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Complete question:

A metal rod of length 31 cm is placed in a magnetic field of strength 2. 3 t, oriented perpendicular to the field. Determine the induced emf, in volts, between the ends of the rod when the rod is not moving.

on the same coordinate plane mark all points (x,y) that satisfy each rule. y = x-3

Answers

The equation is y = x - 3

and the points (x, y) is (0,-3) , (-1, -4) and (1, -2)

Equation:An equation is math's way of saying that two things are equal to each other--that is, they have the same value, are worth the same amountA formula is a special equation that expresses an important relationship between variables and numbers.

The equation is as follows:

y = x - 3

Substituting 'x = 0' in the given equation, we get

y = 0 - 3

y = -3

Substituting 'x = - 1' in the given equation, we get

y = - 1 - 3

y = -4

Substituting 'x = 1' in the given equation, we get

y = 1 - 3

y = -2

➢ Pair of points of the given equation are shown in the below table.

x             y

0            -3

-1            -4

1             -2

➢ Now draw a graph using the points.

➢ See the attachment graph.

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To fit in an existing frame, the length, x, of a piece of glass must be longer than 12 cm but not lonner than 122 cm. Which inequality can be used to represent the lengths of the glass that will fit in the frame?

Answers

The inequality that can be used to represent the lengths of the glass that will fit in the frame is 12 < x ≤ 122

How to determine the inequality can be used to represent the lengths of the glass that will fit in the frame

We are given that the length, x, of a piece of glass must be longer than 12 cm but not longer than 122 cm in order to fit in an existing frame.

This can be represented mathematically using the inequality 12 < x ≤ 122

Therefore, the inequality that can be used to represent the lengths of the glass that will fit in the frame is 12 < x ≤ 122

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Show all work. Answers without justification will receive "0" credit. 7/2 = 4 + sin0

Answers

There must be a mistake or typo in the expression.

We can evaluate the expression 7/2 = 4 + sin0 as follows:

sin0 is the sine of 0 degrees, which is equal to 0. Therefore, the expression simplifies to:

Now, we can compare this value to the left-hand side of the equation, which is 7/2. Since 7/2 is not equal to 4, we can conclude that the equation is not true.

7/2 = 4 + 0

Next, we can simplify the right side of the equation by combining like terms:

4 + 0 = 4

So, the equation becomes:

7/2 = 4

To check if this is true, we can multiply both sides by 2:

7/2 × 2 = 4 × 2

Simplifying:

7 = 8

Since 7 is not equal to 8, we know that the original equation 7/2 = 4 + sin0 is not true. Therefore, there must be a mistake or typo in the expression.

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Given right triangle � � � ABC with altitude � � ‾ BD drawn to hypotenuse � � ‾ AC . If � � = 5 AD=5 and � � = 55 , AC=55, what is the length of � � ‾ AB in simplest radical form?

Answers

The length of AB in simplest radical form is 8.06.

We can find the length of AB using the principle of similar triangles on the triangles ABD and ABC.

Considering triangle ABD, given that AD = 5 then

Cos A = AD/AB

Also,

Cos A = AB/AC

Given that AD = 5, AC = 13, AB = x

therefore,

x/13 = 5/x

x² = 65

x = √65

= 8.06

Hence, the length of AB in simplest radical form is 8.06.

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A search plane covers 50 square miles of countryside. How many hectares does the plane search?

1,295
12.95
129.5
12,950

Answers

The number of hectares that the plane search is 129450 hectares

How many hectares does the plane search?

From the question, we have the following parameters that can be used in our computation:

A search plane covers 50 square miles of countryside

This means that

Area = 50 square miles of countryside

As a general rule

1 square miles = 258.999 hectares

Substitute the known values in the above equation, so, we have the following representation

50 * 1 square miles = 258.999 hectares * 50

Evaluate

50 square miles = 129450 hectares

Hence, the number of hectares is 129450 hectares

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Output is produced according to Q=4LK, where L is the quantity of labor input and K is the quantity of capital input. If the price of K is $10 and the price of L is $5,then the cost minimizing combination of K and L capable of producing 32 units of output is:

Answers

The cost of producing Q units of output is C = 10K + 5L, where K and L are the quantities of capital and labor inputs, respectively. We want to find the combination of K and L that produces 32 units of output at minimum cost.

Using the production function Q = 4LK, we can solve for L in terms of K and Q:

L = Q/(4K)

Substituting this expression for L into the cost function, we get:

C = 10K + 5(Q/(4K))

Simplifying, we get:

C = 10K + (5/4)(Q/K)

To minimize cost, we take the derivative of C with respect to K and set it equal to zero:

dC/dK = 10 - (5/4)(Q/K^2) = 0

Solving for K, we get:

K = (5/8) * (Q/10)^0.5

Substituting Q = 32, we get:

K = 2

Substituting this value of K into the production function, we get:

L = Q/(4K) = 4

Therefore, the cost minimizing combination of K and L is K = 2 and L = 4.

Can u mark my answer as the Brainlyest if it works Ty

80 divide by 6 help me now!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:13.33

Step-by-step explanation:

Choose the correct answer for at (cos-' (_hx)) = d dx = h 1-h-x2 h V1+hx? h VI-V x2 h- h V1+hx2

Answers

Trigonometry is a branch of mathematics that deals with the relationships between the sides and angles of triangles. The cosine function (cos) is one of the six trigonometric functions and represents the ratio of the adjacent side to the hypotenuse in a right-angled triangle. It is denoted by cos θ, where θ is the angle between the adjacent side and the hypotenuse.

In the given equation, we are asked to find the correct answer for (cos-'(_hx)) = d dx = h 1-h-x2 h V1+hx? h VI-V x2 h- h V1+hx2. To solve this equation, we need to understand the basic principles of calculus, specifically differentiation.

Differentiation is the process of finding the derivative of a function, which represents the rate of change of that function at a particular point. In this case, we are differentiating the inverse cosine function (cos^-1) with respect to x.

The correct answer to the equation is h V1+hx2. To explain this answer, we need to use the chain rule of differentiation. Let u = cos^-1(_hx). Then, we have:

d dx (cos^-1(_hx)) = d du (cos^-1 u) * d dx (_hx)
= -1/√(1-u^2) * h

Substituting u = _hx, we get:

d dx (cos^-1(_hx)) = -1/√(1-(_hx)^2) * h
= -1/√(1-h^2x^2) * h

Simplifying the expression, we get:

d dx (cos^-1(_hx)) = -h/√(1-h^2x^2)

Now, we need to find the value of d dx (cos^-1(_hx)) when x = 1. Plugging in x = 1, we get:

d dx (cos^-1(_h)) = -h/√(1-h^2)

Squaring both sides and simplifying, we get:

(d dx (cos^-1(_hx)))^2 = h^2/(1-h^2x^2)
= h^2/(1-h^2)

Taking the square root of both sides, we get:

d dx (cos^-1(_hx)) = h/√(1-h^2)

Substituting x = 1, we get:

d dx (cos^-1(_h)) = h/√(1-h^2)

Now, we need to find the value of h when cos^-1(_h) = d/dx. We know that cos^-1(_h) = θ, where cos θ = _h. Therefore, we can write:

cos(d/dx) = _h

Squaring both sides and solving for h, we get:

h = √(1-(d/dx)^2)

Substituting this value of h in the previous equation, we get:

d dx (cos^-1(_hx)) = √(1-(d/dx)^2)/√(1-(1-(d/dx)^2))
= √(1-(d/dx)^2)/√(d/dx)^2

Simplifying the expression, we get:

d dx (cos^-1(_hx)) = √(1-(d/dx)^2)/(d/dx)

Substituting the given options in the equation, we find that the correct answer is h V1+hx2.

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What is the area of the blue shade figure if a=3 cm and B=5cm. Us 3.14 to approximate

Answers

The area of the blue shaded figure will be 47.9 cm².

Given that;

In the figure,

A = 3 cm

B = 5 cm

Since, The area of a circle = πr²

So, For radius of small circle with radius 3 cm,

Area = πr²

Area = 3.14 × 3²

Area = 3.14 × 9

Area = 30.6 cm²

Hence, Area of small circle = 30.6 cm²

And, Area of the big circle with radius 5 cm,

Area = 3.14 × 5²

Area = 3.14 × 25

Area = 78.5 cm²

Hence, Area of big circle with radius 5 cm = 78.5 cm²

So, The area of blue shaded circle = 78.5 - 30.6

= 47.9 cm²

Thus, the area of the blue shaded figure will be 47.9 cm².

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You have collected cans for a food drive.

What is the total weight of all the cans that are heavier than 9
ounces? Enter your answer in simplest terms.


Net Weight of Cans of Food (in ounces)

A line plot. A number line going from 7 to 10 in increments of one-half. Above 8 are 2 dots; 8.5, 4; 9, 4; 9.5, 3.

Answers

The total weight of all the cans that are heavier than 9 ounces is 29 ounces.

We have,

Looking at the line plot, we see that there are 4 cans weighing exactly 9 ounces, and 3 cans weighing more than 9 ounces (2 at 9.5 ounces and 1 at 10 ounces).

To find the total weight of all the cans weighing more than 9 ounces, we can calculate:

Total weight = (number of cans weighing 9.5 ounces) x (9.5 ounces per can) + (number of cans weighing 10 ounces) x (10 ounces per can)

Total weight = (2 cans x 9.5 ounces per can) + (1 can x 10 ounces per can)

Total weight = 19 + 10

Total weight = 29 ounces

Therefore,

The total weight of all the cans that are heavier than 9 ounces is 29 ounces.

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A thief is spotted by a policeman at a distance of 500 m. If the speed of the thief be 8 km/hr and that of the policeman be 10 km/hr, at what distance after he spots him will the policeman catch the thief? A. 4 km B. 3.4 km C. 2 km D 2.4 km

Answers

The answer is C. 2 km.

To find the distance after the policeman spots the thief where he will catch him, we'll need to use the terms distance, speed, and time.

Given:
- Distance between thief and policeman: 500 m
- Speed of thief: 8 km/hr
- Speed of policeman: 10 km/hr

Step 1: Convert the distance to kilometers (since the speeds are in km/hr).
500 m = 0.5 km

Step 2: Calculate the relative speed of the policeman to the thief.
Relative speed = Speed of policeman - Speed of thief = 10 km/hr - 8 km/hr = 2 km/hr

Step 3: Calculate the time it will take for the policeman to catch the thief.
Time = Distance / Relative speed = 0.5 km / 2 km/hr = 0.25 hr

Step 4: Calculate the distance traveled by the policeman in that time.
Distance traveled = Speed of policeman × Time = 10 km/hr × 0.25 hr = 2.5 km

Step 5: Subtract the initial distance between them to find the distance after the policeman spots the thief.
Distance after spotting = Distance traveled - Initial distance = 2.5 km - 0.5 km = 2 km

So, the policeman will catch the thief at a distance of 2 km after he spots him. The answer is C. 2 km.

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In the United States, males between the ages of 40 and 49 eat on average 103.1 g of fat every day with a standard deviation of 4.32 g. Assume that the amount of fat a person eats is normally distributed. Round the probabilities to four decimal places. It is possible with rounding for a probability to be 0.0000. a) State the random variable. a fat ✓ Select an answer rv X = a randomly selected male in the US between the ages of 40 and 49 b rv X = the fat consumption of a sample of males in the US between the ages of 40 and 49 rv X = fat consumption is normally distributed ry = the fat consumption of a randomly selected male in the US between the ages of 40 and 49 rv X = the mean fat consumption of all males in the US between the ages of 40 and 49 d b) Find the probability that a randomly selected male in the US between the ages of 40 and 49 has a fat consumption of 91.94 g or grams or more. c) Find the probability that a randomly selected male in the US between the ages of 40 and 49 has a fat consumption of 93.64 g or grams or less. d) Find the probability that a randomly selected male in the US between the ages of 40 and 49 has a fat consumption between 91.94 and 93.64 g or grams. e) Find the probability that randomly selected male in the US between the ages of 40 and 49 has a fat consumption that is at least 118.22 g or grams. f) Is a fat consumption of 118.22 g or grams unusually high for a randomly selected male in the US between the ages of 40 and 49? Why or why not? ✓ Select an answer yes, since the probability of having a value of fat consumption at least that high is less than or equal to 0.05 yes, since the probability of having a value of fat consumption at the most that value is less than or equal to 0.05 no, since the probability of having a value of fat consumption at least that high is less than or equal to 0.05 no, since the probability of having a value of fat consumption at the most that value is less than or equal to 0.05 yes, since the probability of having a value of fat consumption at least that high is greater than 0.05 yes, since the probability of having a value of fat consumption at the most that value is greater than 0.05 no, since the probability of having a value of fat consumption at least that high is greater than 0.05 no, since the probability of having a value of fat consumption at the most that value is greater than 0.05 g) What fat consumption do 61% of all males in the US between the ages of 40 and 49 have less than? Round your answer to two decimal places in the first box. Put the correct units in the second box.

Answers

61% of all males in the US between the ages of 40 and 49 have a fat consumption of less than 104.47 g per day

a) rv X = the fat consumption of a randomly selected male in the US between the ages of 40 and 49

b) [tex]P(X ≥ 91.94) = P(Z ≥ \frac{(91.94 - 103.1)}{4.32} /) = P(Z ≥ -2.57) = 0.0051[/tex]

c) [tex]P(X ≥ 93.64) = P(Z ≥ \frac{(93.64 - 103.1)}{4.32} ) = P(Z ≥ -2.19) = 0.0143[/tex]

d) [tex]P(91.94 ≤ X ≤ 93.64) = P(Z ≤ (\frac{93.64 - 103.1}{4.32} ) - P(Z ≤ (\frac{91.94 - 103.1)}{4.32} ) = P(Z ≤ -2.19) - P(Z ≤ -2.57) = 0.0143 - 0.0051 = 0.0092[/tex]

e) [tex]P(X ≥ 118.22) = P(Z ≥ (\frac{118.22 - 103.1}{4.32} ) = P(Z ≥ 3.50) = 0.0002[/tex]

f) no, since the probability of having a value of fat consumption at least that high is less than or equal to 0.05

g) Using the standard normal table, we find the z-score corresponding to the 61st percentile to be approximately 0.28. Therefore, we have:

[tex]0.28 = \frac{x-103.1}{4.32}[/tex]

x = 104.47

So 61% of all males in the US between the ages of 40 and 49 have a fat consumption of less than 104.47 g per day. The units are grams per day.

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Use the given pair of vectors, v = ⟨ −1/2 , −√(3)/2 ⟩ and w = ⟨ −√(2)/2 , √(2)/2 ⟩ , to find the following quantities.

Answers

The magnitude of the given vectors is √(6-2√2+2√6)/2 units.

The magnitude of a vector formula is used to calculate the length for a given vector (say v) and is denoted as |v|.

Here, magnitude of vectors is |v|=√[(x₂-x₁)²+(y₂-y₁)²]

Now, |v|=√[((-√2/2)-(-1/2))²+(√2/2-(-√3/2))²]

= √[(-√2+1)²/4 +(√2+√3)²/4]

= √(2+1-2√2+2+3+2√6)/2

= √(6-2√2+2√6)/2

Therefore, the magnitude of the given vectors is √(6-2√2+2√6)/2 units.

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What is the probability that
both events will occur?
A coin and a die are tossed.
Event A: The coin lands on heads
Event B: The die is 5 or greater
P(A and B) = P(A) - P(B)
P(A and B) = [?]
Enter as a decimal rounded to the nearest hundredth.
Enter

Answers

The probability that both event will occur is 1/6

What is probability?

A probability is a number that reflects the chance or likelihood that a particular event will occur. The certainty of an event to occur is 1 which is equivalent to 100%.

Probability = sample space/ total outcome

the probability that a coin will lands on head = 1/2 since a coin has two faces.

Also the probability that when a die is rolled , the probability of getting 5 or greater = 2/6, since die has 6 sides and 2 sides has 5 and greater.

Therefore the probability of getting both event = 1/2 × 2/6 = 1/6

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what is the result from this equation .349 +0.131 d, +2.7511,₂ - 1 (x²0.48 + 10.729 +0.8947, 1/₂)

Answers

Simplified equation is

0.131d + 1.72455 - 1(x²0.48 + 11.17635)

To find the result of the equation .349 + 0.131d + 2.7511,₂ - 1(x²0.48 + 10.729 + 0.8947, 1/₂), follow these steps:

Step 1: Rewrite the equation with correct notation:
0.349 + 0.131d + 2.7511/2 - 1(x²0.48 + 10.729 + 0.8947*1/2)

Step 2: Calculate the values inside the parentheses and fractions:
0.349 + 0.131d + 2.7511/2 - 1(x²0.48 + 10.729 + 0.8947*0.5)

Step 3: Simplify the equation:
0.349 + 0.131d + 1.37555 - 1(x²0.48 + 10.729 + 0.44735)

Step 4: Combine like terms:
0.131d + 1.72455 - 1(x²0.48 + 11.17635)

Now, you have simplified the equation. The result will depend on the value of 'd' and 'x'. You can substitute specific values for 'd' and 'x' to find the result.

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Multiply 1/2 and 3/4 and figure out the area

Answers

The area of the rectangle is 3/8 square units.

Multiplying 1/2 by 3/4 gives us: (1/2) x (3/4) = 3/8. This means that if we have a rectangle with a length of 1/2 and a width of 3/4, the area of the rectangle is 3/8.

To calculate the area of a rectangle, we use the formula A = lw, where A represents the area, l represents the length, and w represents the width. So, if we plug in the values for length and width, we get:

A = (1/2) x (3/4) = 3/8

Area = (1/2) x (3/4) = 3/8 square units.

Therefore, the area of the rectangle is 3/8 square units.

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Complete Question:

Multiply 1/2 and 3/4 and figure out the area of the rectangle.

please answer this know
Q3) A soccer coach wants to choose one starter and one reserve player for a certain position. If the candidate players are 8 players, in how many ways can they be chosen and ordered?

Answers

Using permutation, the soccer coach can choose one starter and one reserve player for the certain position in 56 different ways.

The coach wants to choose and order two players from a group of 8. This is a permutation problem since order matters.

To find the number of ways to choose one starter and one reserve player from 8 candidate players, you can use the following steps:

The formula for the number of permutations of n objects taken r at a time is nPr = n!/(n-r)!.

Using this formula, we can calculate the number of ways the coach can choose and order two players:

8P2 = 8!/(8-2)! = 8!/6! = 8x7 = 56

Therefore, there are 56 ways the coach can choose and order a starter and reserve player for the position from a group of 8 candidates.

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Use calculus to find the area a of the triangle with the given vertices. (0, 0), (3, 2), (1, 6)

Answers

The area of the triangle with the given vertices is approximately 13.95 square units.

To find the area of the triangle with the given vertices, we can use calculus to calculate the magnitude of the cross-product of two of its sides. Specifically, we can use the vectors formed by two pairs of vertices and take their cross-product to find the area.

Let's choose the vectors formed by the points (0,0) and (3,2) as well as (0,0) and (1,6). We'll call these vectors u and v, respectively:

u = <3, 2>

v = <1, 6>

To take the cross product of these vectors, we can use the formula:

|u x v| = |u| |v| sin(theta)

where |u| and |v| are the magnitudes of the vectors, and theta is the angle between them.

To find the angle between u and v, we can use the dot product formula:

u · v = |u| |v| cos(theta)

Solving for cos(theta), we get:

[tex]$\cos(\theta) = \frac{\mathbf{u} \cdot \mathbf{v}}{\lvert\mathbf{u}\rvert \lvert\mathbf{v}\rvert} = \frac{(3 \cdot 1) + (2 \cdot 6)}{\sqrt{3^2 + 2^2} \sqrt{1^2 + 6^2}} = \frac{21}{\sqrt{13} \sqrt{37}}$[/tex]

We can then use the Pythagorean identity to find sin(theta):

[tex]$\sin(\theta) = \sqrt{1 - \cos^2(\theta)} = \sqrt{1 - \left(\frac{21}{\sqrt{13}\sqrt{37}}\right)^2}$[/tex]

Finally, we can plug in the values we've found to the formula for the magnitude of the cross-product:

[tex]$\lvert\mathbf{u} \times \mathbf{v}\rvert = \lvert\mathbf{u}\rvert \lvert\mathbf{v}\rvert \sin(\theta) = \sqrt{3^2 + 2^2} \sqrt{1^2 + 6^2} \sqrt{1 - \left(\frac{21}{\sqrt{13}\sqrt{37}}\right)^2}$[/tex]

Evaluating this expression gives us the area of the triangle:

[tex]$\lvert\mathbf{u} \times \mathbf{v}\rvert = 9 \sqrt{37} \sqrt{1 - \left(\frac{21}{\sqrt{13}\sqrt{37}}\right)^2} \approx 13.95$[/tex]

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