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MariettaO [177]
3 years ago
6

PLEASE HELP!! WILL MARK BRAINLIEST AND THANK YOU!!! IM DESPERATE!!!!

Mathematics
2 answers:
777dan777 [17]3 years ago
6 0
Answer: 91 in ²

This has to be answered in three parts:

1) Area of square
2) Area of triangle
3) Addition of both areas

Let’s start with step one: area of square. The easiest way to solve this sort of equation is by breaking the shape into two easier shapes and finding the area of both. I have attached an image below of how we will separate these shapes

Let’s find the area of the square.

Step 1) Write formula

l • w = a

Step 2) Fill in information and solve

7 • 11 = 77

That’s the area of the square! Now let’s move onto the triangle

Step 1) Write formula

1/2(b•h)

Step 2) Fill in information and solve

(Though it doesn’t say the base, we can find this by subtracting 15 and 11)

1/2(4•7)

1/2 (28)=14

That’s the area of the triangle side! Now let’s add these together for the final answer

Final Step: Finding final area

To find the area of the whole shape, let’s add these two together

Triangle: 14
Square:77

14+77=91

Hope this is right and it helps comment below for more questions :)
mel-nik [20]3 years ago
5 0

Answer:

91 in²

Step-by-step explanation:

Area of tarpezoid = (sum of both bases x height) / 2

A = ((11 + 15) x 7) /2 = 91

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Answer:

5cm

Step-by-step explanation:

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How would you do this???
Kobotan [32]

Answer:

8.3 L/s

Step-by-step explanation:

To find the answer you need to find the slope also known as the rate of change. When you find slope it is always change in y over change in x.

\frac{399-150}{40-10}

Then simplify

\frac{249}{30}

Then divide to get your slope/average rate of change

\frac{249}{30} = 8.3

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4 years ago
What is (2x^2+2x-6) times (x-4)?
andreev551 [17]

Answer:

2x^3-6x^2-14x+24

Step-by-step explanation:

7 0
3 years ago
"Assume that a sample is used to estimate a population proportion p. Find the margin of error E that corresponds to the given st
11111nata11111 [884]

Answer:

The error E = ± 4.04 %

Step-by-step explanation:

Solution:-

- The sample data is used to estimate the population proportion ( p ).

- The success p^ = success percentage = 40 %

- The confidence interval CI = 98%

- The sample size n = 800

- The margin of error E:

- The margin of error "E" for estimation of population proportion ( p ) is given by:

                          E = z-critical*\sqrt{\frac{p~ ( 1 - p~ )}{n} }

Where, Z-critical value is defined by the significance level:

                         P ( Z < Z-critical ) = α / 2

Where, α : Significance level

                          α = 1 - CI

                         P ( Z < Z-critical ) = (1 - 0.98) / 2

                         P ( Z < Z-critical ) = 0.01  

                         Z-critical = 2.33

- The error E of estimation is:

                        E = 2.33*\sqrt{\frac{0.4 ( 1 - 0.4 )}{800} }\\\\E = 0.04035

- The error E = ± 4.04 %

6 0
3 years ago
Does the point (4 , 9) satisfy the equation y = x - 5?
stepladder [879]

Answer:

(4, 9) does not satisfy the equation

Step-by-step explanation:

Given the linear equation, y = x - 5, and the point, (4, 9):

We can determine whether (4, 9) is a solution to y = x - 5 by substituting their values into the equation.

x = 4, and y = 9:

y = x - 5

9 = 4 - 5

9 = -1   (False statement)

As demonstrated in our calculations, it turns out that (4, 9) does not satisfy the equation. Therefore, (4, 9) is <u><em>not</em></u> a solution to y = x - 5.

6 0
2 years ago
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