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3 years ago

I NEED HELP PLEASE!

Mathematics

1 answer:

Dima020 [189]3 years ago

3 0

Answer:

4.583 meters

Step-by-step explanation:

Divide 66 by pi

=21.01910828

I rounded to 21

Find the square root of 21

4.58257569...

I rounded again, to 3 decimal places

4.583

Hope it helps!

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3 years ago

Use integer rules to evaluate: 85 + (-96) *

grin007 [14]

Answer:

$\boxed{ \bold{ \huge{ \boxed{ \sf{ - 11}}}}}$

Step-by-step explanation:

$\sf{85 + ( - 96)}$

Multiplying positive integer and negative integer gives a negative integer i.e ( + ) × ( - ) = ( - )

$\longrightarrow{ \sf{85 - 96}}$

The negative and positive integers are always subtracted but posses the sign of the bigger integer

$\longrightarrow{ \sf{ - 11}}$

Hope I helped!

Best regards! : D

6 0

3 years ago

*Line segment AB is divided into 4 unequal parts by points C, D, and E (in this order). The distance between midpoints of segmen

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Let X and Y represent the midpoints of AC and EB, respectively. We are given

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Since XC +CE + EY = XY = 30, and XC+EY = 6, we must have CE = 30-6 = 24.

The distance between the midpoints of CD and DE will be half the length of CE, so will be 12 cm.

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3 years ago

Grandpa Ross won $4.5 million in a lottery. He wanted to give the money to his 4 children and 8 grandchildren. He decided that e

sladkih [1.3K]

We suppose one children can receive x. Then grandson receive 1/4x. Total is 4x+8*1/4x=6x. After deducting the fees and taxes, the amount is 4.5-1.26=3.24 million. So x=3.24/6=0.54 million. So each grandchild get 0.54/4=0.135 million.

8 0

3 years ago

Suppose that the length of a rectangle is 4 times the width. If the area is 900 square feet, then what is the width of the recta

statuscvo [17]

Answer:

Width 15 feet

Step-by-step explanation:

Use formula

$A_{rectangle}=\text{Width}\cdot \text{Length}$

Let x feet be the width of the rectangle.

If the length of a rectangle is 4 times the width of the rectangle, then the length is 4x feet.

The area of the rectangle is 900 square feet, so

$900=x\cdot 4x\\ \\900=4x^2\\ \\x^2=225\ [\text{Divided by 4}]\\ \\x=\pm 15$

The width cannot be negative, then x=15 feet and 4x=60 feet.

8 0

4 years ago