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3 years ago

Simplify:________________________

Mathematics

1 answer:

user100 [1]3 years ago

6 0

Answer:

your answer is "4xy^2"

Step-by-step explanation:

technically it's "4xy with an exponent of 2"

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3 years ago

Keisha swims 18 feet from one side of her circular pool to the other swimming straight through the center. She then swims one ti

Ket [755]

Answer:

56.5 ft

Step-by-step explanation:

Here we know that:

- Keisha swims 18 feet from one side of her circular pool to the other swimming straight through the center --> this means that the diameter of the swimming pool is 18 feet, so

d = 18 ft

- Then, she swims one time around the entire edge of her swimming pool. --> this means that she swims along the perimeter of the swimming pool

The perimeter of a circle is given by

$p=\pi d$

where d is the diameter. Therefore in this case, the length of Keisha's second swim is:

$p=\pi \cdot d = 3.14 \cdot 18 =56.5 ft$

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3 years ago

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4 years ago

The sum of three numbers is 102. The first number is 6 more than the second. The third number is 4 times the second. What are th

const2013 [10]

Answer:

1st number: 22

2nd number: 16

3rd number: 64

Step-by-step explanation:

x + y + z = 102

x = 6 + y

z = 4y

plug that in!

(6 + y) + y + (4y) = 102

get rid of the parenthesis (I added them so you could see what I was replacing) and add like terms.

6 + 6y = 102

move 6 to the other side.

6y = 96

y = 16

now that you know one number, you can solve the equations for the rest!

x = 6 + (16)

z = 4(16)

__________________________________________________________

x = 22

y = 16

z = 64

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3 years ago

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3 years ago

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