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Citrus2011 [14]
3 years ago
6

Simplify the square root of 16+the square root of 40

Mathematics
1 answer:
gladu [14]3 years ago
5 0

Answer:

4+2\sqrt{10}

Step-by-step explanation:

\sqrt{16} +\sqrt{40}

Simplify the expression.

\sqrt{16} =4

\sqrt{40} = 2\sqrt{10}

Add the two answers together.

4+2\sqrt{10}

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The hypotenuese of an isosceles right triangle is 16 inches. The midpoints of its sides are connected to form an inscribed trian
ser-zykov [4K]

Answer:

  256/3 = 85 1/3 square inches

Step-by-step explanation:

The dimensions of the first inscribed triangle are 1/2 those of the original, so its area is (1/2)² = 1/4 of the original. The area of the original is ...

  A = (1/2)bh = (1/2)(16/√2)(16/√2) = 64 . . . . square inches

The sum of an infinite series with first term 64 and common ratio 1/4 is ...

  S = a1/(1 -r) . . . . . . for first term a1 and common ratio r

  = 64/(1 -1/4) = 64(4/3) = 256/3 . . . . square inches

The sum of the areas of the triangles is 256/3 = 85 1/3 square inches.

3 0
4 years ago
PLEASE HELP ASAP I WILL MARK BRAINLIEST!!
Mamont248 [21]

Answer:

A

Step-by-step explanation:

cause im smart

4 0
3 years ago
HELP FAST PLEASE!!!!!
lidiya [134]

Alright, lets get started.

The answer Sandra got is correct that is zero but there are some mistakes she made while writing steps.

2 cot(\frac{-9\pi}{2})  =  2 cot(\frac{9\pi}{2}) Incorrect step

Because as per even/odd identity,

Cot (-Θ) = - cot (Θ)

Hence

2 cot (\frac{-9\pi}{2}) = - 2 cot (\frac{9\pi}{2})

Now,

It could be written as

-2 cot (\frac{9\pi}{2}) =   -2 cot (\frac{\pi}{2})


-2 * 0

0

Hence the answer is 0. : Answer

Hope it will help :)

3 0
3 years ago
For the 2015 Intel Science Fair, two brothers in high school recruited 47 of their classmates to take part in a two-stage study.
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Answer:

a) 47

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c)  1

d) 2

e) 47

f) 3

Step-by-step explanation:

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The correct answer would be B :)
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