Answers
Answer:
Area = 30 inches
Step-by-step explanation:
Related Questions
A line passes through the points ( – 7, – 4) and (7,0). Write its equation in slope-intercept form. Write your answer using integers, proper fractions, and improper fractions in simplest form.
Answers
The equation of the line in slope-intercept form is y = (2 / 7)x - 2.
To write the equation of a line in slope-intercept form, we need to determine the slope and the y-intercept of the line using the given points.
The slope of a line can be calculated using the formula:
slope = (y2 - y1) / (x2 - x1),
where (x1, y1) and (x2, y2) are the coordinates of two points on the line.
Using the given points (-7, -4) and (7, 0), we can calculate the slope:
slope = (0 - (-4)) / (7 - (-7)) = 4 / 14 = 2 / 7.
Now that we have the slope, we can use the point-slope form of a linear equation to find the equation of the line:
y - y1 = m(x - x1),
where (x1, y1) is a point on the line and m is the slope.
Let's use the point (7, 0):
y - 0 = (2 / 7)(x - 7).
To simplify, we have:
y = (2 / 7)(x - 7).
Therefore, the equation of the line in slope-intercept form is y = (2 / 7)x - 2.
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The equation of the line passing through the given points in slope-intercept form is y = (2/7)x - 2.
Explanation:To write the equation of a line in slope-intercept form, we need to use the formula y = mx + b, where m is the slope and b is the y-intercept. First, let's calculate the slope using the given points.
Slope (m) = (y2 - y1) / (x2 - x1)
Slope (m) = (0 - (-4)) / (7 - (-7)) = 4/14 = 2/7
Now that we have the slope, we can choose any of the two given points to find the y-intercept. Using the point (7, 0):
0 = (2/7)(7) + b
b = 0 - 2 = -2
Therefore, the equation of the line in slope-intercept form is y = (2/7)x - 2.
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Integrate e^(1-3x) dx with upper limit 1 and lower limit-1
Answers
After getting the integration [tex]e^{(1-3x)} dx[/tex] with upper-limit 1 and lower-limit -1, we get [tex]\frac{-1}{3}[e^{-2}-e^{4}][/tex]
We know,
[tex]\int\limits^a_{b} {f(x)} \, dx[/tex] = [tex][F(x)]\limits^a_b[/tex]=F(a)- F(b).
Where,
a⇒Upper limit.
b⇒Lower limit,
f(x)⇒Any function of x.
F(x)⇒ [tex]\int {f(x)}[/tex] gives its antiderivative F(x).
Now here,
a is given as +1, and b is given as -1.
f(x)= [tex]e^{(1-3x)}[/tex].
Suppose, 1-3x =t.
∴ -3dx =dt.[By applying derivative rule]
Now,[tex]\int\limits e^{(1-3x)} dx[/tex]
=[tex]\int e^t.(\frac{-1}{3} ) dt[/tex]
=[tex]-\frac{1}{3} \int {e^t} dt[/tex].
=[tex]-\frac{e^t}{3}dt[/tex]
=[tex]\frac{1}{3}e^{(1-3x)}[/tex]
∴,[tex]\int\limits e^{(1-3x)} dx[/tex] =[tex]\frac{1}{3}e^{(1-3x)}[/tex].
So,[tex]\int\limits^1_{-1} e^{(1-3x)} \, dx[/tex]
=- [tex][\frac{1}{3}e^{(1-3x)}]^1_{-1}[/tex]
=[tex]\frac{-1}{3}[e^{(1-3)}-e^{(1+3)}][/tex]
=[tex]\frac{-1}{3}[e^{-2}-e^{4}][/tex]
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You need to buy some supplies for the office and need to find the total cost information so the purchase can be approved. You need a stapler that costs $8, and 5 pens that cost $2 each.
Demonstrate the order of operations by showing the correct and incorrect methods to solve the problem.
Answers
To find the total cost of office supplies, applying the order of operations (PEMDAS) is crucial. A stapler priced at $8 and 5 pens, each costing $2, are required. By following the correct order, we calculate the cost of the stapler separately, then the pens. Adding the stapler cost ($8) to the pen cost ($10) yields a total of $18. Adhering to the order of operations ensures accurate calculations and determines the correct total cost of the supplies.
To solve the problem, let's demonstrate the order of operations, also known as PEMDAS (Parentheses, Exponents, Multiplication and Division from left to right, and Addition and Subtraction from left to right).
The correct method to solve the problem is as follows:
1. Calculate the cost of the stapler: $8.
2. Calculate the cost of the pens: 5 pens * $2/pen = $10.
3. Add the cost of the stapler and the pens to find the total cost: $8 + $10 = $18.
Therefore, the total cost of the supplies for the office is $18.
Now, let's demonstrate the incorrect method by not following the order of operations:
1. Add the cost of the stapler and the pens first: $8 + (5 * $2).
2. Perform the multiplication: $8 + (5 * $2) = $8 + $10 = $18.
In this case, the incorrect method led to the same result as the correct method. However, this may not always be the case. If the order of operations is not followed correctly, it can lead to incorrect results.
It is essential to follow the order of operations to ensure accurate calculations. Parentheses should be evaluated first, followed by exponents, multiplication and division (from left to right), and finally addition and subtraction (from left to right).
By correctly following the order of operations, we can obtain the accurate total cost of the supplies for the office, which is $18.
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If A is a matrix consisting of 4 rows and 5 columns, what must be the number of columns in the matrix B so that the product BA is defined?
Answers
Answer:
Step-by-step explanation:
For the product BA to be defined, the number of columns in matrix A must equal the number of rows in matrix B. Since matrix A has 5 columns, matrix B must have 4 rows. Therefore, the number of columns in matrix B must be 4.
Answer:
Matrix B must also be 5 columns
Step-by-step explanation:
For easy multiplication both matrix should have same number of columns
2. Amanda is having a party. She invited
36 people. She has tables that seat 5
people each. How many tables will
Amanda need for her guests?
Answer box:
8
6
5
7
Answers
Answer:
7................
Step-by-step explanation:
36 ÷ 5 = 7 So Yea
Answer:
8
Step-by-step explanation:
after seating 35 guests in 7 tables (5 guests per table), she will have 1 guest left
so she will require 8 tables in total to allow every guest a seat.
any number of tables below 8 is likely to result in guests unable to have a seat
note: if this is NOT a trick question, this answer might be sufficient
hope it helps
what is the solution for this equation x + 14 = -6
Answers
Answer: x = -20
Step-by-step explanation:
Answer:
[tex]x = -20[/tex]
Step-by-step explanation:
To find the solution we first need to isolate x.
[tex]x + 14 = -6[/tex]
Subtract 14 from each side to make x alone.
[tex]x + 14 - 14 = -6 - 14[/tex]
Simplify
[tex]x = -20[/tex]
find the inverse of the 3 x 3 matrix
[1 0 0
1 1 0
1 1 1 ]
please provide explanation/guidance of answer
thanks!
Answers
To find the inverse of a 3x3 matrix, you can use the following formula:
Let's say you have a matrix A:
A = [a b c
d e f
g h i]
Calculate the determinant of matrix A. In this case, the determinant of A is: det(A) = a(ei − fh) − b(di − fg) + c(dh − eg)If the determinant of A is non-zero (det(A) ≠ 0), then the matrix A is invertible.Calculate the matrix of minors by replacing each element in A with the determinant of the 2x2 matrix formed by the remaining elements.For the element a, the minor is the determinant of the matrix [e f h i] [h i f g]For the element b, the minor is the determinant of the matrix [d f g i] [g i c e]For the element c, the minor is the determinant of the matrix [d e g h][g h b d]For the element d, the minor is the determinant of the matrix [b c h i] [h i a c]For the element e, the minor is the determinant of the matrix [a c g i] [g i f a]For the element f, the minor is the determinant of the matrix [a c d g] [g i b d]For the element g, the minor is the determinant of the matrix [b c f h] [h i a e]For the element h, the minor is the determinant of the matrix [a e g i] [g i d e]For the element, i, the minor is the determinant of the matrix [a e d g] [g i b e]4. Create the matrix of cofactors by multiplying each element in the matrix of minors by (-1) raised to the power of the sum of its row and column numbers.
For example, the cofactor of element a is (-1)^(1+1) times the minor of a.5. Transpose the matrix of cofactors by swapping the elements along the main diagonal.
For example, the element in the first row and second column becomes the element in the second row and first column.6. Multiply the transposed matrix of cofactors by 1/det(A) to obtain the inverse of matrix A.
Applying these steps to the given matrix [1 0 0; 1 1 0; 1 1 1], you can calculate the inverse of the matrix.
Solve the puzzle and add the colors
Answers
Answer:
43
Step-by-step explanation:
Green: 9 - 2(-3) = 9 + 6 = 15
Red: -2(-3) + 4 = 6 + 4 = 10
Dark blue: 7x + 5 = 19
7x = 19 - 5 = 14
x = 14/7 = 2
Light blue: 6x + 3 = 21
6x = 21 - 3 = 18
x = 18/6 = 3
Red(Lt blue) - Dk blue + Green = 10(3) - 2 + 15 = 43
he class is trying to determine who will take care of the class hamster for the weekend. In order to win the chance, you must flip heads on a coin and then spin an even number on a spinner with 9 equal sections labeled from 1 - 9. What is the probability of winning the chance to take care of the hamster?
Answers
Answer:
2/9
Step-by-step explanation:
Coin
A coin has 1 side heads and 1 side tails.
total number of possible outcomes = 2
desired outcome: heads
number of desired outcomes = 1
p(event) = (number of desired outcomes)/(total number of possible outcomes)
p(heads) = 1/2
Spinner
The spinner has 9 sections of equal size.
possible outcomes: the numbers 1, 2, 3, 4, 5, 6, 7, 8, 9
total number of possible outcomes = 9
desired outcome: even number
number of desired outcomes = 4
p(event) = (number of desired outcomes)/(total number of possible outcomes)
p(even number) = 4/9
Combined probability
The coin and spinner are independent events. The overall probability of independent events is the product of the individual probabilities.
p(heads then even) = 1/2 × 4/9 = 4/18 = 2/9
Answer: 2/9
3. In ∆ JAM, which of the following statement is always TRUE?
Answers
The option that shows the missing angles in the triangle is:
Option C: m∠1 < m∠4
How to identify the missing angle?We know that the sum of angles in a triangle is 180 degrees.
Therefore looking at the given triangle, we can say that:
m∠1 + m∠2 + m∠3 = 180°
We also know that the sum of angles on a straight line is 180 degrees and as such we can say that:
m∠3 + m∠4 = 180°
By substitution we can say that:
m∠4 = m∠1 + m∠2
Thus:
m∠1 < m∠4
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The missing options are:
m∠1 > m∠4
m∠2 > m∠4
m∠1 < m∠4
m∠3 = m∠4
Find a vector function that represents the curve of intersection of the two surfaces: The cone z=sqrt(x^2 + y^2) and the plane z =1
Answers
The vector function that represents the curve of intersection between the cone z = sqrt[tex](x^2 + y^2[/tex]) and the plane z = 1 is given by r(t) = [cos(t), sin(t), 1]
To find the vector function that represents the curve of intersection between the cone and the plane, we need to equate the expressions for z in both surfaces and solve for x, y, and z.
The cone is defined by the equation z = sqrt([tex]x^2 + y^2).[/tex]
The plane is defined by the equation z = 1.
Setting these two expressions equal to each other, we have:
sqrt(x^2 + y^2) = 1
To eliminate the square root, we can square both sides of the equation:
[tex]x^2 + y^2 = 1[/tex]
This equation represents a circle in the xy-plane with a radius of 1 centered at the origin.
Now, let's express x and y in terms of a parameter t to obtain a vector function for the curve of intersection. We can choose to parameterize the circle using polar coordinates:
x = cos(t)
y = sin(t)
Substituting these expressions into the equation x^2 + y^2 = 1, we have:
cos^2(t) + sin^2(t) = 1
This is true for any value of t, so the parameterization is valid.
Finally, we can write the vector function for the curve of intersection:
r(t) = [cos(t), sin(t), 1]
Therefore, the vector function that represents the curve of intersection between the cone z = sqrt(x^2 + y^2) and the plane z = 1 is given by r(t) = [cos(t), sin(t), 1], where t is a parameter that varies over the range of values that defines the circle in the xy-plane.
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What is the sum of the fractions below? 1/2x + 6/2x
Answers
The sum is:
7/2x
Work/explanation:
Notice how the problem provides us with two fractions where the denominators are the same. Whenever this happens, we can just add the numerators:
[tex]\sf{\dfrac{1}{2x} +\dfrac{6}{2x}}[/tex]
[tex]\sf{\dfrac{7}{2x}}[/tex]
Hence, the sum is 7/2x.
How many times smaller is 1.2 x 10^6 than 1.47 x 10^7?
Answers
Answer:
Step-by-step explanation:
To determine how many times smaller 1.2 x 10^6 is than 1.47 x 10^7, we need to divide the larger number by the smaller number:
1.47 x 10^7 / 1.2 x 10^6 = 12.25
Therefore, 1.2 x 10^6 is approximately 12.25 times smaller than 1.47 x 10^7.
To confirm this result, we can also calculate the difference between the two numbers:
1.47 x 10^7 - 1.2 x 10^6 = 1.35 x 10^7
So 1.2 x 10^6 is approximately 1/12.25 = 0.0816 times as large as 1.47 x 10^7.
pls help me with math i’ll give uu brainlist
Answers
(0,6)
(0, -2.5)
(0, 2)
I'm here to support your learning and make math more understandable for you.Once you're satisfied with the assistance provided, feel free to mark the response as the "Best Answer" or "Brainlist" to show your appreciation.
Of course! I'm here to help you with math..
Please let me know what specific math problem or concept you need assistance with, and I'll do my best to explain it to you and provide a solution.
Whether it's algebra, geometry, calculus, or any other math topic, I'm here to offer explanations, step-by-step solutions, and guidance.
Just describe the problem or concept you're struggling with, and I'll provide a clear and concise response to help you understand and solve it.
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if 50 suppositories are made from the following formula, how many millilitres of glycerine having a specific gravity of 1.25, would be used in the preparation of 96 suppositories ; Glycerine ...91g, Sodium stearate...9g, Purified water....5g?
Answers
In the preparation of 96 suppositories, approximately 139.776 ml of glycerine with a specific gravity of 1.25 would be used.
To determine the amount of glycerine needed for the preparation of 96 suppositories, we need to calculate the amount of glycerine used per suppository and then scale it up for the total number of suppositories.
Glycerine: 91g
Sodium stearate: 9g
Purified water: 5g
Since we are making 50 suppositories, we can calculate the amount of glycerine per suppository as:
Amount of glycerine per suppository = Glycerine / Number of suppositories
Amount of glycerine per suppository = 91g / 50
Amount of glycerine per suppository = 1.82g
Now, we can scale this up to find the amount of glycerine needed for 96 suppositories:
Total amount of glycerine = Amount of glycerine per suppository * Number of suppositories
Total amount of glycerine = 1.82g [tex]\times[/tex] 96
Total amount of glycerine = 174.72g
However, we need to convert this weight to volume using the specific gravity of glycerine.
Volume = Weight / Specific gravity
Volume of glycerine needed = 174.72g / 1.25
Volume of glycerine needed = 139.776 ml
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NO LINKS!! URGENT HELP PLEASE!!
Please help me with #27
Answers
Answers:
(a) 39%(b) 0.5625(c) 0.7692 (approximate)(d) Yes there is a connection. The events are dependent.=====================================================
Explanation for part (a)
The table says there are 39 students who do not carry a backpack out of 100 total.
39/100 = 0.39 = 39% of the students do not carry a backpack.
--------------------
Explanation for part (b)
The phrasing "if a junior is chosen" is the same as saying something like "given we know a junior has been chosen". The word "given" is a key term in conditional probability questions.
We focus entirely on the juniors only. Ignore everyone else.
I recommend either using a highlighter to mark the "junior" column, or using two sheets of paper to cover the other columns up.
We have 18 juniors that carry a backpack out of 32 juniors total.
18/32 = 9/16 = 0.5625 is the probability the junior has a backpack. This value is exact and hasn't been rounded.
--------------------
Explanation for part (c)
This is similar to the previous part. The "given" this time is we know 100% the student selected doesn't have a backpack.
Focus solely on the "no backpack" row. There are 14 juniors and 16 seniors in this row. There are 14+16 = 30 juniors or seniors that don't have a backpack. This is out of 39 people who don't have a backpack.
30/39 = 0.7692 which is approximate. Round this value however needed.
--------------------
Explanation for part (d)
Define these events
A = person is a freshmanB = person has a backpackThen,
P(A) = 11/100 = 0.11P(B) = 61/100 = 0.61P(A and B) = 8/100 = 0.08If events A and B were independent, then P(A and B) = P(A)*P(B) would be a true equation.
P(A)*P(B) = 0.11*0.61 = 0.0671 exactly without any rounding done to it
This does not match with P(A and B) = 0.08
Therefore, P(A and B) = P(A)*P(B) is false. Events A and B are not independent. They are dependent in some way.
Use this logic to explore the connections between the other grade levels and their status of "backpack" vs "no backpack". You should find that those connections are also dependent.
--------------------
Alternative explanation for part (d)
Once again I'll define these two events:
A = person is a freshmanB = person has a backpackIf the events were independent, then these two equations must be true
P(A given B) = P(A)P(B given A) = P(B)The table says P(A) = 0.11 as calculated earlier.
P(A given B) = probability a freshman is chosen, given they have a backpack
P(A given B) = (8 freshmen with backpacks)/(61 people with backpacks)
P(A given B) = 8/61
P(A given B) = 0.1311 approximately
This does not match up with P(A) = 0.11 calculated earlier.
We have shown that P(A given B) = P(A) is false in this case, which must mean the events are dependent somehow. Having prior knowledge of the student having a backpack (or not) changes the probability of P(A).
You should find that P(B given A) = P(B) is false here as well. I'll let you explore this connection, and the other paired connections.
To conclude part (d) in one sentence: Yes there appears to be a connection between grade level and whether the student carries a backpack or not.
Question 1 of 5 Enter the correct answer in the box. The function f(x) = 6x + 8 is transformed to function g through a horizontal stretch by a factor of 5. What is the equation of function g? Replace the values of a and k in the function equation.
Answers
Answer:
Introduction of a business invironment
what would be your first step in completely factoring 6a^2-15a+6
Answers
The completely factoring form of 6a^2 - 15a + 6 is 3(2a - 1)(a - 2).
To completely factor the expression 6a^2 - 15a + 6, the first step is to check if there is a common factor among the coefficients (6, -15, and 6) and the terms (a^2, a, and 1).
In this case, we can see that the common factor among the coefficients is 3, so we can factor out 3:
3(2a^2 - 5a + 2)
Now we need to factor the quadratic expression inside the parentheses further. We are looking for two binomials that, when multiplied, give us 2a^2 - 5a + 2. The factors of 2a^2 are 2a and a, and the factors of 2 are 2 and 1. We need to find two numbers that multiply to give 2 and add up to -5.
The numbers -2 and -1 fit this criteria, so we can rewrite the expression as:
3(2a - 1)(a - 2)
Therefore, the completely factored form of 6a^2 - 15a + 6 is 3(2a - 1)(a - 2).
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How do I solve this question
Answers
3y+1+56=180
3y+57-57=180-57
3y/3=123/3
Y=41
4.
The diagram shows a cylinder and a cone each of
base radius 5 cm and perpendicular height 10 cm.
Find
(a) the slant height of the cone,
(b)
the ratio of the curved surface area of the
cylinder to that of the cone.
Answers
(a) To find the slant height of the cone, we can use the Pythagorean theorem. The slant height (l) of a cone is the hypotenuse of a right triangle formed by the height (h) and the radius (r). In this case, the height (h) of the cone is given as 10 cm and the radius (r) is given as 5 cm.
Using the Pythagorean theorem:
l² = r² + h²
l² = 5² + 10²
l² = 25 + 100
l² = 125
Taking the square root of both sides:
l = √125
l ≈ 11.18 cm
Therefore, the slant height of the cone is approximately 11.18 cm.
(b) The curved surface area (CSA) of a cylinder is given by the formula:
CSA of cylinder = 2πrh
Where r is the radius of the cylinder's base and h is the height of the cylinder.
The curved surface area (CSA) of a cone is given by the formula:
CSA of cone = πrl
Where r is the radius of the cone's base and l is the slant height of the cone.
In this case, the radius (r) for both the cylinder and the cone is 5 cm, and the height (h) for the cylinder is 10 cm.
CSA of cylinder = 2π(5)(10) = 100π cm²
CSA of cone = π(5)(11.18) = 175.93π cm²
To find the ratio of the curved surface area of the cylinder to that of the cone, we divide the CSA of the cylinder by the CSA of the cone:
Ratio = (CSA of cylinder) / (CSA of cone)
Ratio = (100π) / (175.93π)
Ratio ≈ 0.569
Therefore, the ratio of the curved surface area of the cylinder to that of the cone is approximately 0.569.
Answer:
42 cm
:234
Step-by-step explanation:
PLEASE HELP YR 9 MATHS URGENT
Answers
Answer:
a. Algeria
b. 5.017 x 10^6
Step-by-step explanation:
a. Algeria
b. (1.13 x 10^6) + (2.38 x 10^6) + (0.924 x 10^6) + (0.583 x 10^6)
= 5.017 x 10^6
ABC Inc. recently issued $1,000 par bonds at a 4.05% coupon rate. If the bonds have 30 years to maturity and a YTM of 15.84%, what is the current price of the bond? Assume semi-annual compounding.
Note: Enter your answer rounded off to two decimal points. Do not enter $ or comma in the answer box.
Answers
The current price of the bond is $402.41 .
To calculate the current price of the bond, we can use the formula for the present value of a bond, taking into account the coupon payments and the final principal repayment.
The coupon payment is the periodic interest payment made by the bond, and it can be calculated as follows:
Coupon Payment = (Coupon Rate × Par Value) / Number of Coupon Payments per Year
In this case, the coupon rate is 4.05% and the par value is $1,000, and since the bond has semi-annual coupon payments, the number of coupon payments per year is 2.
Coupon Payment = (0.0405 × 1000) / 2 = $20.25
Next, we can calculate the total number of coupon payments over the life of the bond. Since the bond has 30 years to maturity with semi-annual coupon payments, the total number of coupon payments is 30 × 2 = 60.
Now, we can calculate the present value of the bond by discounting the future cash flows, including both the coupon payments and the final principal repayment, at the yield to maturity (YTM) rate.
Using the present value formula for a bond:
Bond Price = Coupon Payment × [1 - (1 / (1 + YTM / Number of Coupon Payments per Year))^Number of Coupon Payments] / (YTM / Number of Coupon Payments per Year) + (Par Value / (1 + YTM / Number of Coupon Payments per Year))^Number of Coupon Payments
Bond Price = 20.25 × [1 - (1 / (1 + 0.1584 / 2))^60] / (0.1584 / 2) + (1000 / (1 + 0.1584 / 2))^60
Evaluating this expression, the current price of the bond is approximately $402.41.
Therefore, the current price of the bond is $402.41 (rounded off to two decimal points).
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Carl works at a veterinarian office. The first dog he sees is a Chihuahua who weighs 3 kilograms. The second dog he sees is a Great Dane who weighs 27 times as much as the Chihuahua. How much does the Great Dane weigh?
Answers
Carl works at a veterinarian office. The first dog he sees is a Chihuahua who weighs 3 kilograms. The second dog he sees is a Great Dane who weighs 27 times as much as the Chihuahua. The Great Dane weighs 81 kilograms.
Let's denote the weight of the Chihuahua as "x" kilograms. We know that the Great Dane weighs 27 times as much as the Chihuahua. Therefore, the weight of the Great Dane can be expressed as 27x.
Given that the weight of the Chihuahua is 3 kilograms, we can substitute this value into the equation:
27x = 3
To find the weight of the Great Dane, we need to solve for x:
x = 3 / 27
x = 1 / 9
Therefore, the weight of the Chihuahua is 1/9 kilograms.
Now, we can calculate the weight of the Great Dane by multiplying the weight of the Chihuahua by 27:
Weight of the Great Dane = 27 * (1/9) = 27/9 = 3 kilograms
So, the Great Dane weighs 81 kilograms, which is 27 times the weight of the Chihuahua.
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In the incidence matrix for this figure, what
would be the element in row 2 column 4?
Answers
The calculated value of the element in row 2 column 4 is 1.
How to determine the element in row 2 and column 4From the question, we have the following parameters that can be used in our computation:
The pentagonal prism
Where the vertices are labelled 1 to 6
From the figure, we can see that
The vertices 2 and 4 are adjacent matrices
This means that they are connected
The general rule is that; for an incidence matrix, the rows represent the vertices, and the columns represent the edges.
Since vertices 2 and 4 are adjacent to each other, the value of the element in row 2 column 3 will be 1
Otherwise, it would be 0
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I don't need lengthy details I just want the answer
Answers
Answer:
Sue rode 1885 miles total
Step-by-step explanation:
There are 31 days in March, 30 in April, and 30 in May.
31 * 12 + 30 * 12 + 30 * 12 = 1092
There are 30 days in June and 31 in august.
30 * 13 + 31 * 13 = 793
Now we find the total:
1092 + 793 = 1885
maths homework struggling
Answers
Answer:
Θ = 23.9°
Step-by-step explanation:
Use inverse tangent in a calculator.
tan Θ = 23/52
tan Θ = 0.4423
tan^-1 0.4423 = 23.9°
Please help me:
4x+8=20
Solve for x
Answers
We can isolate the x term by subtracting 8 from both sides of the equation, giving us 4x=12. dividing by 4 on each side gives us x=3.
So, our answer is x=3.
Step-by-step explanation:
[tex]4x + 8 = 20 \\ 4x = 20 - 8 \\ 4x = 12 \\ x = \frac{12}{4 \\ } \\ x = 3ans [/tex]
hope that it helps
Evaluate the function f (x) = one-half x + 3 for f(4). a. 5 b. 9 c. 11 d. 14 Please select the best answer from the choices provided A B C D
Answers
Answer:
To evaluate the function f(x) = (1/2)x + 3 for f(4), we substitute x = 4 into the function:
f(4) = (1/2)(4) + 3
= 2 + 3
= 5
Therefore, the correct answer is a. 5.
Answer:
A
Step-by-step explanation:
to evaluate f(4) substitute x = 4 into f(x)
f(x) = [tex]\frac{1}{2}[/tex] x + 3 ← substitute x = 4
f(4) = [tex]\frac{1}{2}[/tex] (4) + 3 = 2 + 3 = 5
Cars arrive at a toll booth at an average rate of 10 cars every 20 minutes via a Poisson
process. Determine the probability that the toll booth operator will have to wait not
longer than 10 minutes before the third toll.
Answers
The calculation involves summing the probabilities of 0, 1, 2, and 3 cars arriving within 10 minutes.
The probability that the toll booth operator will have to wait not longer than 10 minutes before the third car arrives can be determined using the Poisson distribution formula.
The average rate of car arrivals is given as 10 cars every 20 minutes, which can be translated to an average rate of 0.5 cars per minute (10 cars / 20 minutes = 0.5 cars/minute).
To find the probability of the third car arriving within 10 minutes, we need to calculate the cumulative probability of the Poisson distribution up to the third car, using the average rate of 0.5 cars per minute and a time interval of 10 minutes.
The calculation involves summing the probabilities of 0, 1, 2, and 3 cars arriving within 10 minutes.
The resulting probability will provide the answer to the given question
For more such answers on Probability
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A cruise ship is traveling south going approximately 22 mph when it hits the Gulf Stream flowing east at 4mph.
Show your work.
A) What is the vector component for the cruise ship?
B) What is the vector component for the Gulf Stream?
Answers
Answer:
A) -22j
B) 4i
Step-by-step explanation:
You want the vector components represented by (a) 22 mph south, and (b) 4 mph east.
Maps and vectorsMaps are generally oriented with North at the top. When compared to an x-y coordinate plane, this means south is in the -y direction, and east is in the +x direction.
Two-dimensional vector spaces are generally defined with unit vector i pointing to the right, and unit vector j pointing up.
Using these conventions, we can define the vector components of the given speeds.
A) 22 mph southA unit vector in the direction south could be -j. Then the vector component of cruise ship speed in the direction south will be ...
-22j
B) 4 mph eastThe unit vector in the direction east will be multiplied by the easterly speed to get the vector component for the Gulf Stream:
+4i
__
Additional comment
A vector is often represented using an over-arrow or a bold or italic font.
[tex]4\vec{i}-22\vec{j}[/tex]
In the answer text above, we have used a different font to indicate the unit vectors. The arrows are generally available only in typeset text.
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