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Anettt [7]
3 years ago
10

Please help!!! And Please PLEASE write a detailed explanation of how you got your answer, not just the answer!!!! Brainliest WIL

L be included for the BEST and most ACCURATE answer!!! Thank You!!!

Mathematics
2 answers:
Norma-Jean [14]3 years ago
8 0
I think it would be the first option

Adding up the lengths of the exposed sides of the square would give you 40. You do not count the sides of the square in the middle because it's being covered by the 2 half circles.

We can use the 2 squares to measure the half circles. Since the circles cover 2 sides of the square, the circle is 20 units long on the flat side. To find the perimeter of the curves, you would at Pi into the equation.
GuDViN [60]3 years ago
6 0
A I did the quiz hopefully this helps
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Plzzzzzz helppppp meeee !!!
Anon25 [30]

Answer:

Corresponding side of AB is FE

Corresponding side of CB is DE

Corresponding side of AC is FD

k =2

DE = 6

FD=10

Step-by-step explanation:

Given

\triangle ABC and \triangle FED

See attachment for triangles

Solving (a): Corresponding side of AB

Going by the names of the triangle, the corresponding sides are:

AB and FE; CB and DE; AC and FD

Hence, the corresponding side of AB is FE

Solving (b): Corresponding side of CB

This has been solved in (a) above.

The corresponding side of CB is DE

Solving (c): Corresponding side of AC

This has been solved in (a) above.

The corresponding side of AC is FD

Solving (d): Scale factor from ABC to FED

To do this, we simply divide the lengths of corresponding sides.

The scale factor k is:

k = \frac{FE}{AB}

k = \frac{8}{4}

k =2

Solving (e): Length of DE

We make use of the scale factor calculated in (d) above

k = \frac{DE}{CB}

2 = \frac{DE}{3}

DE = 2 * 3\\

DE = 6

Solving (f): Length of FD

Using Pythagoras:

FD^2 = DE^2 + EF^2

FD^2 = 6^2 + 8^2

FD^2 = 100

FD = \sqrt{100

FD=10

7 0
3 years ago
20(x + 1) = 200 solve for x and explain in number form
omeli [17]

Answer:

X = 9

Step-by-step explanation:

Write Equation: 20(x+1) = 200

Distribute 20: 20x +20 =200

Subtract 20: 20x = 180

Divide by 20x to leave x by itself: X=9

<em>Brainliest?</em>

6 0
3 years ago
Read 2 more answers
Find the area of the figure
Eduardwww [97]

Answer:

132cm²

Step-by-step explanation:

You can find the area of the entire shape by calculating the area of seperate smaller shapes.

You can split them up into 2 rectangles, one with a base of 7cm and height of 4cm, and another one with a base of 7cm and height of 8cm. You also have 2 triangles, with a base of 19cm - 7cm / 2 = 6cm since it is the entire bottom line subtracted by the top; they will have a height of 8cm each.

To calculate the rectangles areas, simply do length x width, which are:

4cm x 7cm = 28cm²

8cm x 7cm = 56cm²

Next, since the triangles are similar in measurements, instead of doing the normal calculation to find the area of a triangle, you can do base times height again, which is:

6cm x 8cm = 48cm²

Add all the answers together to get the final area, which is 132cm².

8 0
3 years ago
An emu-for-hire company has 20 emus they rent out to people with emu-related emergencies. There are 5 brown emus, 8 grey emus, 2
Fittoniya [83]
I think the answer is 2.5 sorry if I’m wrong
7 0
4 years ago
What's the equation of the line that passes through the points (4,4) and (0,-12)?
Law Incorporation [45]

Answer:

B

Step-by-step explanation:

You need to find the slope.

m=\frac{y_{2}-y_{1}  }{x_{2}- x_{1} }\\m=\frac{-12-4  }{0-4 }\\m=\frac{-16}{-4}\\ m=4

Since the slope is 4, the answer is B.

6 0
3 years ago
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