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Ket [755]
3 years ago
10

Hii please help i’ll give brainliest!!

Mathematics
2 answers:
cupoosta [38]3 years ago
7 0

Answer:

A

I Had that question before

marshall27 [118]3 years ago
4 0
I say A but sorry if it’s wrong
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A rectangular prism is 15 centimeters long, 2 centimeters wide, and 6 centimeters high. What is the surface area of the rectangu
Alex787 [66]
SA = 2lw + 2lh + 2hw

SA = 2(15)(2) + 2(15)(6) + 2(6)(2)

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3 0
3 years ago
Four congruent isosceles right triangles are cut from the 4 corners of a square with a side of 20 units. The length of one leg o
yanalaym [24]

Answer:

368 sq. units.

Step-by-step explanation:

We have a square of side lengths 20 units and we cut four congruent isosceles right triangles from the corners of the square.

Now, the four isosceles right triangles have one leg equal to 4 units.  

Therefore, the area of four triangles = 4 \times ( \frac{1}{2} \times 4 \times 4) = 32 sq. units.

Now, we have the area of the given square is (20 × 20) = 400 sq. units.

Therefore, the area of the remaining octagon will be (400 - 32) = 368 sq. units. (Answer)

7 0
3 years ago
Please help i have no idea what it means and the test is tomorrow.
Anarel [89]

Answer:

H. 2

Step-by-step explanation:

√(1 − cos² x) / sin x + √(1 − sin² x) / cos x

Use Pythagorean identity.

sin² x + cos² x = 1

So:

1 − cos² x = sin² x

and

1 − sin² x = cos² x

Substitute:

√(sin² x) / sin x + √(cos² x) / cos x

sin x / sin x + cos x / cos x

1 + 1

2

8 0
3 years ago
Which expression is equivalent to 3(2x + 5), no matter what value is substituted in for x
Furkat [3]

Answer:

6x +15

Step-by-step explanation:

5 0
3 years ago
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