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3241004551 [841]
3 years ago
15

Question 9 of 10

Mathematics
2 answers:
MariettaO [177]3 years ago
8 0
D is the correct answer
Lunna [17]3 years ago
4 0

Answer:

D.

Step-by-step explanation:

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coppers mother gives him $79 to the store, he buys 15 loaves of bread and 28 cartons of juice each bread is $3 and each juice ca
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He doesn't have a positive number. Add $45 and $112 together and it exceeds $79
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3 years ago
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Hello everyone, could you please solve this problem step by step. I don't have the exact solution and there are no options for i
lara31 [8.8K]

Answer:

<em>The area of the shaded part  = 61.46</em>

<em />

Step-by-step explanation:

Assume the hypotenuse of the triangle is c (c>0)

As the triangle inscribed in the semi circle is the right angle triangle, its hypotenuse is equal to the diameter of the circle.

The hypotenuse of the triangle can be calculated by Pythagoras theorem as following: c^{2} =a^{2} +b^{2} =(2\sqrt{5}) ^{2} + (4\sqrt{5}) ^{2} = 20 + 80 = 100

=> c = 10

So that the semi circle has the diameter = 10 => its radius = 5

  • The total area of 2 semi circles is equal to the area of the circle with radius =5

    => The total area of 2 semi circles is: \pi x 5^{2} = 25\pi

  • The area of a triangle inscribed in the semi circle is: 1/2 x a x b = 1/2 x 2\sqrt{5\\ x 4\sqrt{5} = 20

    => The area of 2 triangles inscribed in 2 semi circles is: 2 x 20 = 40

  • The area of the square is: c^{2} = 10^{2} =100

It can be seen that:

<em>The area of the shaded part = The area of the square - The total area of 2 semi circles + The total are of 2 triangles inscribed in semi circles </em>

<em>= 100 -  25</em>\pi<em> + 40 = 61.46</em>

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3 years ago
What is the distance between 7 and −11?
marta [7]
The distance between 7 and -11 is 21
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3 years ago
Please look at the picture before answering!
sergeinik [125]

Answer:

It's A. angle 2

Step-by-step explanation:

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Please help i’ll give brainliest
STALIN [3.7K]

Answer:

A insects and plants

Step-by-step explanation:

the decaying things are used as fertilizer for plants to grow and insects to eat

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