AREA AND PERIMETER OF SHAPES, HELP PLEASE!

The linear equation is y = (-7/4)*x + 15

A line written in the slope-intercept form is:

y = ax + b

Where a is the slope and b is the y-intercept.

If the line passes through the points (x₁, y₁), then the slope is:

a = (y₂ - y₁)/(x₂ - x₁)

In this case the points are (4,8) and (8,1):

a = (1 - 8)/(8 - 4) = -7/4

Then the line is.

y = (-7/4)*x + b

To find the value of b, we can replace the values of one of the points, let's use (4, 8)

8 = (-7/4)*4 + b

8 = -7 + b

8 + 7  =b

15 = b

The line is:

y = (-7/4)*x + 15

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I would recommend that you choose the queen's offer. It is a safer bet, and it will provide you with a guaranteed amount of rice to feed your family.

The king's offer is a very generous one, and it would provide you with a lifetime supply of rice. However, it is also a very risky one. The total number of grains of rice on the 64th square is a very large number. In fact, it is so large that it is difficult to even imagine. If the king were to fulfill his promise, it would bankrupt the kingdom.

The queen's offer is much more practical. She is offering you a guaranteed amount of rice, which you can use to feed your family. While it may not be as much rice as the king is offering, it is a much safer bet.

If you are looking for a more stable option, then the queen's offer is the better choice.

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the z-score of a person who scored 21 on the exam is -1.

A Z-Score is a statistical measurement of a score's relationship to the mean in a group of scores. A Z-score can reveal to a trader if a value is typical for a specified data set or if it is atypical. In general, a Z-score of -3.0 to 3.0 suggests that a stock is trading within three standard deviations of its mean.

We can use the formula:

z = (x - μ) / σ

Knowing that:

Substituting the values:

[tex]z = (21 - 26) / 5\\z = -5 / 5\\z = -1[/tex]

Therefore, the z-score of a person who scored 21 on the exam is -1.

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The value of x in the triangle is 50.6 cm.

A triangle is a polygon with three sides.

Using triangle proportional theorem, If a line parallel to one side of a triangle intersects the other two sides of the triangle, then the line divides these two sides proportionally.

Therefore,

AM / AN = x / BP

Therefore,

AM = 46.2 - 14 = 32.2 cm

AN = 14 cm

x = ?

BP = 72.6 - x

Therefore,

32.2 / 14 = x / 72.6 - x

cross multiply

32.2(72.6 - x) = 14x

2337.72 - 32.2x = 14x

2337.72 = 14x + 32.2x

2337.72 = 46.2x

divide both sides of the equation by 46.2

x = 2337.72 / 46.2

x = 50.6 cm

Therefore,

x = 50.6 cm

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Answer:

c. The period is 2π

Step-by-step explanation:

The period of a function is the smallest value of $p$ for which[tex] f(x+p) = f(x)[/tex] for all x.

For the function f(x) = 2cos(x^2), we can see that f(x+2π) = f(x) for all x.

This is because the cosine function has a period of 2π. Therefore, the period of f(x) = 2cos(x^2) is [tex]\boxed{2\pi}[/tex]

The numerical values for the length, width, and height of the rectangular prism and I will be able to help you determine its volume.

A rectangular prism, also known as a rectangular cuboid, is a three-dimensional shape with six rectangular faces.

To find the volume of a rectangular prism, you need to know the lengths of its three dimensions:

length (l), width (w), and height (h).

The formula for calculating the volume of a rectangular prism is:

Volume = length × width × height

Once you have the measurements for length, width, and height, you can substitute them into the formula to calculate the volume.

Make sure the units of measurement are consistent (e.g., inches).

Since I cannot view the image or its dimensions, I cannot provide you with a specific answer in terms of cubic inches.

If you provide me with the measurements of the length, width and height, I can assist you in calculating the volume using the formula mentioned above.

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Answer:

Step-by-step explanation:

40 x 1 = 40

20 x 2 = 40

10 x 4 = 40

8 x 5 = 40

Hello!

A = πr² = 3*(8ft)² = 3*64ft² = 192ft²

A function that has a greater maximum include the following: A. Function 1 has a larger maximum at (4, 1).

In order to determine the maximum value of function 2, we would have to take the first derivative with respect to x and then, substitute this x-value into the original function while equating it to zero (0), and then evaluate as follows;

f(x) = −x² + 2x - 15

f(x) = −2x + 2

0 = −2x + 2

2x = 2

x = 2/2

x = 1

For the maximum value of function 2, we have:

f(1) = −(1)² + 2(1) - 15

f(1) = -14

For the maximum value of function 1, we can logically deduce that it is equal to 1 based on the graph in image attached above.

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The correct option is (2)

For any quadratic equation: ax2 + bx + c = 0.

The complex roots are expressed in the form a ± bi.

where a is the real part

& b is the imaginary part.

Since, one root is √7 + 5i, therefore the other root will be of the form √7 - 5i.

Hence, option (2) is correct.

The values of the expressions are;

z³³

d⁻¹⁶

Note that index forms are described as forms used in the representation of numbers or variables too large or small.

Some rules of index forms are;

Then, from the information given, we have that;

(z⁻⁴/z⁶  × z⁵/z⁻⁶)⁻¹¹

Subtract the exponents, we have;

(z⁻² × z⁻¹)⁻¹¹

expand the bracket

z²² ⁺ ¹¹

z³³

(d⁴)⁻³/(d⁶)⁻²  ÷  (d⁴/d⁶)⁻⁸

expand the brackets

d⁻¹²/d¹²  ÷    (d⁻²)⁻⁸

subtract the exponents

d⁰  ÷  d¹⁶

d⁻¹⁶

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The mode of the data set is 3 televisions.

The median of the data set is 2 televisions.

The data set appears to be left-skewed.

Blank 1: The data set appears to have a mode of 3, as it has the highest frequency of occurrences indicated by the symbol "●●●". Therefore, we can describe the data set as having a mode of 3 televisions.

Blank 2: The median of the data set can be determined by locating the middle value. In this case, since the dot plot is not symmetrical, we need to count the values from either end until we reach the middle. From the left side, we count 2 values, and from the right side, we count 2 values. Therefore, the median of the data set is 2.

Blank 3: The dot plot does not provide any information about the mean of the data set. To find the mean, we would need the actual values of each data point. However, based on the dot plot, we can see that the data set is not symmetrically distributed. It has a higher concentration of values on the left side, indicating a left-skewed distribution. Therefore, we cannot accurately determine the mean based on the dot plot alone.

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The probability of rolling greater than a 1 on a single die is 5/3.

The sample space of rolling dice = {1, 2, 3, 4, 5, 6}

We know that, probability of an event = Number of favourable outcomes/Total number of outcomes.

Number of favorable outcomes = 5

Total number of outcomes = 6

Probability of getting the number greater than 1 = 5/6

Therefore, the probability of rolling greater than a 1 on a single die is 5/3.

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The solution to the given quadratic equation is: x = -2/3 or x = 3

The general form of writing a quadratic equation is:

y = ax² + bx + c

The formula to solve a quadratic equation is:

x = [-b ± √(b² - 4ac)]/2a

The given quadratic equation is:

j(x) = -3x² + 7x + 6

Thus:

x = -7 ± √(7² - 4*-3*6)]/2(-3)

From the attached graph, we see that the solution to the given quadratic equation is: x = -2/3 or x = 3

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Answer:

Equations of asymptotes are [tex]\displaystyle y=\frac{2}{5}x+4[/tex] and [tex]\displaystyle y=-\frac{2}{5}x[/tex]

Step-by-step explanation:

Determine the equation of the hyperbola by completing the square:

[tex]-4x^2+40x+25y^2-100y+100=0\\\\-4(x^2+10x)+25(y^2-4y+4)=0\\\\-4(x^2+10x+25)+25(y-2)^2=0-4(25)\\\\-4(x+5)^2+25(y-2)^2=-100\\\\\frac{(x+5)^2}{25}-\frac{(y-2)^2}{4}=1[/tex]

Therefore, [tex]a=5[/tex] and [tex]b=2[/tex] with center [tex](h,k)=(-5,2)[/tex]. The asymptotes of the hyperbola can be determined with the equation [tex]\displaystyle y=\pm\frac{b}{a}(x-h)+k[/tex]:

[tex]\displaystyle y=\pm\frac{b}{a}(x-h)+k\\\\y=\pm\frac{2}{5}(x-(-5))+2\\\\y=\pm\frac{2}{5}(x+5)+2[/tex]

The first equation is:

[tex]\displaystyle y=\frac{2}{5}(x+5)+2\\\\y=\frac{2}{5}x+2+2\\\\y=\frac{2}{5}x+4[/tex]

The second equation is:

[tex]\displaystyle y=-\frac{2}{5}(x+5)+2\\\\y=-\frac{2}{5}x-2+2\\\\y=-\frac{2}{5}x[/tex]

I've attached a graph to provide a visual of everything. Hopefully, it helps!

The number of elements in the intersection A∩B is 2.

The intersection of two sets A and B, denoted as A∩B, represents the set that contains all the elements that are common to both A and B.

A = {1, 2, 4, 5}

B = {1, 3, 5, 7}

To find the intersection A∩B, we compare the elements of set A with the elements of set B.

Any element that appears in both sets is considered to be part of the intersection.

The elements that are common to both A and B are 1 and 5.

These two elements appear in both sets, so they are included in the intersection.

Thus, the intersection A∩B = {1, 5}.

Hence, the number of elements in the intersection A∩B is 2, as there are two elements in the set {1, 5}.

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1) The probability of the Celtics winning a game is 21/30, or 70%.

2) The probability of the Celtics winning a game when Jason Tatum played is 4/6, or 67%.

3) These events are dependent.

Now,  we can use the formula:

P(Win) = (number of wins) / (total number of games)

Substituting the given values, we get:

P(Win) = (0.7 * 30) / 1 P(Win) = 21

Therefore, the probability of the Celtics winning a game is 21/30, or 70%.

Hence, P(Win) = 70%

This means that the Celtics won 70% of their 30 games this season.

And, we can use the formula:

P(Win I Jason Tatum) = (number of wins when Jason Tatum played) / (total number of games Jason Tatum played)

Substituting the given values, we get:

P(Win I Jason Tatum) = 4 / 6 P(Win I Jason Tatum) = 0.67

Therefore, the probability of the Celtics winning a game when Jason Tatum played is 4/6, or 67%.

3) These things are linked together. The likelihood of the Celtics winning a game is impacted by Jason Tatum's participation in that game. If the two events were separate, whether Jason Tatum played or not would not have an impact on the outcome of the first event, the game.

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The statements about functions f and g that are true are f (-3) > g (4)

A function from a set X to a set Y assigns exactly one element of Y to each element of X. The set X is known as the function's domain, and the set Y is known as the function's codomain.

In mathematics, a function is a mathematical expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable.

A function is a relationship between a set of inputs and one output. Every function has its own domain, codomain, and range.

When working on a project, it is common for some tasks to need to be repeated with different input. To ensure that the analyses are performed consistently, it is critical to wrap the code in a named function that is called each time it is required.

Therefore,

The two graphs representing functions f and g are shown below. Option D) f (-3) > g (4)

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The fish aquarium has a surface area of 592 square inches. This information is useful for understanding the available surface for gas exchange and heat dissipation in the aquarium.

Kelly's fish aquarium has dimensions of 12 inches in length, 10 inches in width, and 8 inches in height.

The volume of a rectangular prism, such as Kelly's aquarium, is calculated by multiplying its length, width, and height. In this case, the volume can be found using the formula:

Volume = Length x Width x Height

Substituting the given values, we have:

Volume = 12 inches x 10 inches x 8 inches

Simplifying the calculation, we get:

Volume = 960 cubic inches

Therefore, the fish aquarium has a volume of 960 cubic inches. This indicates the amount of space available inside the aquarium for water and fish.

It's important to note that the volume alone does not provide information about the number or type of fish that can be kept in the aquarium. Factors such as the specific needs and requirements of the fish species, filtration system, and other environmental factors also need to be considered when determining the appropriate stocking level and maintaining a healthy aquatic environment.

Additionally, the dimensions of the aquarium can also be used to calculate the surface area, which is important for gas exchange and heat transfer. The surface area of a rectangular prism can be found by adding up the areas of all its faces. In this case, the surface area of Kelly's aquarium would be:

Surface Area = 2(Length x Width) + 2(Length x Height) + 2(Width x Height)

Substituting the given values, we have:

Surface Area = 2(12 inches x 10 inches) + 2(12 inches x 8 inches) + 2(10 inches x 8 inches)

Simplifying the calculation, we get:

Surface Area = 240 square inches + 192 square inches + 160 square inches

Surface Area = 592 square inches

Therefore, the fish aquarium has a surface area of 592 square inches. This information is useful for understanding the available surface for gas exchange and heat dissipation in the aquarium.

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The equation for the line of fit, we need to determine the values of the slope (m) and the y-intercept (b) based on the given data.

To write an equation for the line of fit in the scatter plot, we can use the slope-intercept form of a linear equation:

y = mx + b, where "y" represents the dependent variable (time into the hockey goal), "x" represents the independent variable (distance from the scorer to the hockey goal), "m" represents the slope of the line, and "b" represents the y-intercept.

Since I don't have access to the scatter plot or the specific data points, I won't be able to provide the exact equation for the line of fit.

To calculate the slope (m) and y-intercept (b) from a scatter plot, we can use statistical methods such as linear regression.

Linear regression allows us to determine the best-fitting line that minimizes the distances between the line and the data points.

If you can provide the specific data points or more information about the scatter plot, I can assist you further in calculating the equation for the line of fit.

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Answer:

24

Step-by-step explanation:

let devaughn be X and Sydney be Y

X= Y-7

X+Y = 41

substitution method

substitute X = Y-7 into eqn ii

Y-7+Y = 41

2Y = 48

Y = 24

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Answer:

C = 1/4

Step-by-step explanation:

There are only four options: 2, 3, 4, and 5

4 is only one of these options

So it is 1 out of 4: 1/4

Answer: 1/4

Step-by-step explanation:

Between 2 and 5, there are 4 numbers (2,3,4,5)

So the chance of 4 is 1/4

Seems a bit easy, you sure you can't do this yourself? ;D

The player will make the shot and win the playoffs if they shoot within the range of approximately 0.74 meters, and the basketball reaches a maximum height of approximately 2.54 meters.

To determine if the basketball shot will be successful, we need to find the intersection point of the basketball's path, described by the function [tex]b(x) = -x^2 + 1.36x + 2[/tex], and the net's level, given by the function n(x) = 3 for 8 < x < 8.5.

By substituting n(x) into b(x) and solving for x, we can determine if there is an intersection:

[tex]x^2 + 1.36x + 2 = 3[/tex]

[tex]x^2 + 1.36x - 1 = 0[/tex]

Using the quadratic formula, [tex]x = (-1.36 \pm \sqrt(1.36^2 - 4*(-1))) / 2[/tex].

Calculating the values, we find that x ≈ -1.35 or x ≈ 0.74.

Since x represents distance and cannot be negative in this context, we discard the negative solution.

Therefore, the basketball will intersect the net at approximately x = 0.74 meters. As long as the player shoots within this range, the shot will be successful, and the team will win the playoffs.

To determine the maximum height of the basketball, we can find the vertex of the parabolic path. The x-coordinate of the vertex is given by -b/(2a), where a and b are the coefficients of the quadratic equation.

In this case, a = -1 and b = 1.36. Substituting these values, we have x = -1.36/(2*(-1)) = 0.68.

To find the corresponding height, we substitute this x-value into the function b(x): [tex]b(0.68) = -0.68^2 + 1.36(0.68) + 2[/tex].

Evaluating the expression, we find that the basketball reaches a maximum height of approximately 2.54 meters at its highest point.

Therefore, the player will make the shot and win the playoffs if they shoot within the range of approximately 0.74 meters, and the basketball reaches a maximum height of approximately 2.54 meters.

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Answer:

199 + 200

Step-by-step explanation:

The greatest sum of two consecutive integers that is either less than or equal to 400 is 199 + 200.

The correct answer is option(D).

To express the fraction 29/37 in decimal form, you need to divide 29 by 37. The division would look like this:

  0.78378378378378378378378378378378...

The decimal representation of 29/37 is a recurring decimal, which means it repeats indefinitely. The repetition begins after the decimal point and continues indefinitely, with the sequence 783 repeating. To denote the recurring part, a vinculum or overline is often used.

To calculate the decimal form, you can use long division. Start by dividing 29 by 37, which gives you a quotient of 0.783. Next, subtract 0.783 from 29, which gives you a remainder of 6. Multiply the remainder by 10 to shift the decimal point to the right, giving you 60. Divide 60 by 37, which gives you a quotient of 1.6216. Subtract 1.6216 from 60, and the process continues infinitely.

It's important to note that the ellipsis (...) signifies an infinitely repeating decimal, and the overline indicates the repeating part of the decimal.

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The simplified form of the surd expression 1/√5 - √3 is (√5 - √15) / 5√5

Simplifying the expression 1/√5 - √3, we first need to rationalize the denominator

Rationalize the denominator by multiplying both the numerator and the denominator by the conjugate of the denominator, which is √5.

(1/√5 - √3) × (√5/√5) = √5/5 - √15/√5

Combining the terms with the same denominator:

√5/5 - √15/√5 = (√5 - √15) / 5√5

The expression cannot be simplified further.

Therefore, the simplified form of the expression 1/√5 - √3 is (√5 - √15) / 5√5.

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Answer:

Step-by-step explanation:

slope of y=7 is 0

As line is parallel to y=7 therefore m=0

equation of line is given by y=mx+c

m=0

therefore y=c

substituting y=4

therefore value of c=4

hence equation of line is given by y=0(x)+4

Answer:

p = 160 - 2Q

Step-by-step explanation:

To find the values of 'a' and 'b' in the demand function p = a - bQ, we can use the given information about the demand at different price levels.

We are given two data points:

When the price (p) is RS.40, the quantity demanded (Q) is 60.

When the price (p) is RS.60, the quantity demanded (Q) is 50.

Using these data points, we can set up a system of equations to solve for 'a' and 'b'.

Equation 1: RS.40 = a - b(60)

Equation 2: RS.60 = a - b(50)

Let's solve this system of equations:

From Equation 1:

40 = a - 60b (multiply both sides by -1)

From Equation 2:

60 = a - 50b

Now, we have two equations with two variables. We can solve them simultaneously using any method (substitution, elimination, or matrices). Let's use the substitution method:

Substitute the value of 'a' from Equation 1 into Equation 2:

60 = (40 + 60b) - 50b

60 = 40 + 60b - 50b

60 = 40 + 10b

10b = 60 - 40

10b = 20

b = 20/10

b = 2

Now, substitute the value of 'b' back into Equation 1 to find 'a':

40 = a - 60(2)

40 = a - 120

a = 40 + 120

a = 160

Therefore, the values of 'a' and 'b' are a = 160 and b = 2.

The demand function can now be written as:

p = 160 - 2Q

Answer:

5. (-1, 2)

6, (-2.15, 3.5)

Step-by-step explanation:

5. Find the midpoint between (1,-2) and (-3, 6).

midpoint=[tex](x,y)=(\frac{1 + (-3)}{2}, \frac{-2 + 6}{2})=(-1,2)[/tex]

So the midpoint between (1,-2) and (-3, 6) is (-1, 2).

6. Find the midpoint between (6.4, 3) and (-10.7, 4).

midpoint=[tex](x,y)=(\frac{6.4 + (-10.7)}{2}, \frac{3 + 4}{2})=(-2.15,3.5)[/tex]

So the midpoint between (6.4, 3) and (-10.7, 4) is (-2.15, 3.5).

1. The midpoint of (1, -2) and (-3, 6) is (-1, -2)

2. The midpoint of (6.4, 3) and (-10.7, 4) is (-2.58, 3.5).

We have the points as

1. (1, -2) and (-3, 6)

Using section formula

x = (mx2 + nx1 )/ m+n or, (x2 + x1)/2

y= (my2 + ny1) m+n or, (y2+ y1)/2

So, x= (1 -3 )/2

x= -2/2

x= -1

or, y= -2+6/2

y= -4/2

y= -2

2. (6.4, 3) and (-10.7, 4)

Using section formula

x = (mx2 + nx1 )/ m+n or, (x2 + x1)/2

y= (my2 + ny1) m+n or, (y2+ y1)/2

So, x= (6.4 -10.7 )/2

x= -4.3/2

x= -2.58

or, y= (3+4)/1

y=7/2

y= 3.5

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Answer:

The graph of the circle is attached.

What is a circle? A circle is a shape or a curve in a plane that has a fixed distance, called the radius, from a given point, called the center. A circle is also the set of all points that are equidistant from the center. A circle is a special case of an ellipse with zero eccentricity and coincident foci. Given is an equation of a circle, we need to graph, it, The equation = (x-7)² + (y-5)² = 4 Here, the center of the circle is (7, 5) and the radius is 2.

Hence, the graph of the circle is attached.

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