2 years ago

Identify the terms and the like terms in the expression z+8-4z

Mathematics

1 answer:

slamgirl [31]2 years ago

8 0

Answer: -3z+8

Step-by-step explanation: add -4z and z because they are like terms and then leave the 8 alone because it’s a term.

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A rectangular window is topped with a semicircle the height of the rectangle part is 1 more than 3 times its width W meters whic

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Answer:

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Step-by-step explanation:

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What is the area of a sector with a central angle of (2pi/3) radians and a diameter of 12 in?

Stels [109]

Answer:

The area of the sector is $37.68\ in^{2}$

Step-by-step explanation:

step 1

Find the area of the circle

The area of the circle is equal to

$A=\pi r^{2}$

we have

$r=12/2=6\ in$ ----> the radius is half the diameter

substitute

$A=(3.14)(6)^{2}$

$A=113.04\ in^{2}$

step 2

Find the area of a sector with a central angle of (2pi/3)

Remember that

The area of $113.04\ in^{2}$ subtends a central angle of $2\pi \ radians$

by proportion

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3 years ago

Tiffany is 34 years old and Vanessa is 6 years old. How many years will it take until Tiffany is only 3 times as old as Vanessa?

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Let t be the required number of years.
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34 + t = 18 + 3t
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t = 8
The answer is 8 years.

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