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VARVARA [1.3K]
2 years ago
12

Which expression is equivalent to 20 + 8y − 9y − 21

Mathematics
1 answer:
Sindrei [870]2 years ago
4 0

Answer:

-y-1

Step-by-step explanation:

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The volume of an irregularly shaped geometric object is usually determined by the _____ of _____ it displays.
Arturiano [62]
<span>Volume; Liquid its the answer to your question</span>
6 0
3 years ago
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Please help me explain as well. AD is 48. I will give brainliest.
otez555 [7]

Answer:

The area of the rectangle is 48

Step-by-step explanation:

We know that AE is 6 and ED is 8, since it forms a triangle, use the Pythagorean theorem to find AD, which is one side of the rectangle.

The Pythagorean theorem says that a^2 + b^2 = c^2.

a is AE, b is ED, and c is AD, so 6^2 + 8^2 = c^2, 36 + 64 = c^2, 100 = c^2, 10 = c, so AD is 10

The area of the triangle is half of AE times ED, so 1/2(6)(8) = 1/2(48) = 24, the area of the triangle is 24.

Since the area of a triangle is 1/2 of the base times the height, we can figure out the height:

A = 1/2bh, 24 = 1/2(10)h, 24 = 5h, 4.8 = h, so the height of the triangle (and rectangle) is 4.8.

The height of the triangle is also the height of the rectangle:

The area of the rectangle is 4.8*10 = 48

8 0
3 years ago
What is the area?<br> 7 m<br> 4 m<br> square meters?
bija089 [108]

Answer:

28 square meters

Step-by-step explanation:

7 x 4= 28

28 square meters

3 0
3 years ago
Which of the following describes the transformation of p(x)=x3 to the function q(x)=−(x−6)3−4 ?
Anna71 [15]

Answer:

A

Step-by-step explanation:

(X) =x3 to the function q(x-6)3-4

5 0
2 years ago
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How to evaluate this f (x) = -x^+1 for x =-3
sukhopar [10]
Just plug in -3 for x. So it will be -(-3)^+ 1
Which is 3^+1.
I'm confused by your ^ sign I'm not sure if this is supposed to be squared or not...? But just solve/simplify the equation.
Hope this helps!
4 0
3 years ago
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