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3 years ago

Can you please help me to solve this?

Mathematics

1 answer:

vladimir1956 [14]3 years ago

8 0

C 132 square feet is the answer

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A square calendar has sides that are 20 Inches long. What is the calendar's perimeter? inches

Naddik [55]

Answer:

80 in.

Step-by-step explanation:

to find the perimeter of a shape you add all of the side lengths together

20+20+20+20

8 0

3 years ago

CosA.cos2A.cos4A=sin8A/8sinA

alexgriva [62]

I assume you're supposed to establish the identity,

cos(A) cos(2A) cos(4A) = 1/8 sin(8A) / sin(A)

Recall the double angle identity for sine:

sin(2x) = 2 sin(x) cos(x)

Then you have

sin(8A) = 2 sin(4A) cos(4A)

sin(8A) = 4 sin(2A) cos(2A) cos(4A)

sin(8A) = 8 sin(A) cos(A) cos(2A) cos(4A)

==> sin(8A)/(8 sin(A)) = cos(A) cos(2A) cos(4A)

as required.

3 0

3 years ago

Slove 1/4(x-7)+5=7/8x

baherus [9]

Answer: The answer is...9 and 1/2!

Step-by-step explanation: Subtraction of course!

5 0

2 years ago

Pleassse help! I will mark as brainliest :)

AlladinOne [14]

I = 8.
k = 4
j = sqrt(8^2 + 4^2) = 8.944.

6 0

3 years ago

Read 2 more answers

74% of the animals at an animal shelter are dogs. About what fraction of the animals at the shelter are dogs? and also what is t

lozanna [386]

Answer:

Thus, 37/50 is the equivalent fraction to 74/100.

Therefore, 37/50 of the animals in the shelter are dogs.

Step-by-step explanation:

Given

Given that 74% of the animals at an animal shelter are dogs.

To determine:

About what fraction of the animals at the shelter are dogs?

Using the equation to find a fraction equivalent to 74%

$\:74\%=\:\frac{74}{100}$

Divide numerator and denominator by 2

$=\frac{\frac{74}{2}}{\frac{100}{2}}\:\:$

Cancel the common factor 2.

$=\frac{37}{50}$

Thus, 37/50 is the equivalent fraction to 74/100.

Therefore, 37/50 of the animals in the shelter are dogs.

8 0

3 years ago