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andrey2020 [161]
3 years ago
15

Find the area of the kite. The figure is not drawn to scale.

Mathematics
1 answer:
aleksandrvk [35]3 years ago
3 0

Answer:

The area of the kite is 42\ units^{2}

Step-by-step explanation:

we know that

The area of a kite is half the product of the diagonals

so

A=\frac{1}{2}(D1*D2)

we have

D1=2*(3)=6\ units

<em>Find the length side of diagonal D2</em>

Applying the Pythagoras Theorem

D2=\sqrt{5^{2}-3^{2}} +10\\ \\D2=4+10\\ \\D2=14\ units

<em>Find the area of the kite</em>

we have

D1=6\ units

D2=14\ units

substitute

A=\frac{1}{2}(D1*D2)

A=\frac{1}{2}(6*14)=42\ units^{2}

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An automobile manufacturer wants to assess a new style of visual display to see if it changes the amount of reported eye-strain
finlep [7]

Answer:

Standard error = 0.34

t-statistic = 11.18

Step-by-step explanation:

Given Data:

Mean difference d = 3.8

Standard deviation S.D = 1.36

Number of people = 16

The appropriate test are:

1. Standard error

2. T- statistic

1. Calculating the standard error using the formula;

Standard error = S.D/√n

                         = 1.36/√16

                          = 1.36/4

                           = 0.34

2. Calculating the t-statistic using the formula;

t-statistic = d/(S.D/√n)

              = 3.8/(1.36/√16)

              = 3.8/(1.36/4)

              = 3.8/0.34

               = 11.18

7 0
4 years ago
Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.
Maurinko [17]

Answer:

616 square centimeters

Step-by-step explanation:

Area of a circle is equal to pi × r^2. In this case, they have asked that you substitute 3.14 or 22/7 for pi, so I will be using 22/7, instead.

Diameter is equal to 2r; to find the radius, simply divide 28 by two. This gives us a radius of 14.

Multiply 14 squared by 22/7:

(22/7)(14^2)

This gives us (22/7)(196); (4312/7); 616.

Therefore, the area of the circle is approximately 616 square centimeters.

8 0
2 years ago
Need help on my math work here is a pic of the question
faltersainse [42]

Answer:

-3

Step-by-step explanation:

A = midpoint

-17 + 5 = -12

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-6 + 0 = -6

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Answer:

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Step-by-step explanation:

P equals Pay.

H equals Hours.

Gorans pay is whatever his hours are times 8.

P=H(8)

I hope this helps!

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28 people are going to the movies; they have 3 vans and 1 car.
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