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3 years ago

What is the value of y in the equation 2(2y − 12) = 0? 4 6 7 8

1 answer:

Elena-2011 [213]3 years ago

4 0

First you distribute making it 4y-24=0
second you isolate the variable making it 4y=24
finally you divide by four giving you the answer of y=6

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A hiker is standing 40 feet away from a tree that is 50 feet tall.

Simora [160]

Answer:

87.9°

Step-by-step explanation:

arctan(50/40)=87.9°

6 0

3 years ago

A mystery number is divided by -2 then 7 is added to it to give you a result of 1. What is the mystery number?

alukav5142 [94]

12 divided by -2 the add 7 should give you the answer of 1

3 0

2 years ago

Read 2 more answers

Karina wants to fill the base so that it is 85% full. What is the volume of the base that she is filling? (Find 85% of the volum

Mazyrski [523]

Question:

Karina has recently begun kickboxing and purchased training equipment as modeled in the diagram below. The cylindrical base is 15 inches tall with a diameter of 22 inches.

Karina wants to fill the base so that it is 85% full. What is the volume of the base that she is filling? (Find 85% of the volume).

Answer:

$Section = 4847.3205\ in^3$

Step-by-step explanation:

Given

$h = 15in$ -- height

$d = 22in$ -- diameter

Required

85% of the volume

First, calculate the radius

$r = \frac{1}{2} * d$

$r = \frac{1}{2} * 22= 11in$

The volume (V) is then calculated using:

$V = \pi r^2h$

$V = 3.142* 11^2 * 15$

$V = 5702.73\ in^3$

85% of the volume is:

$Section = 85\% * V$

$Section = 85\% * 5702.73\ in^3$

$Section = 4847.3205\ in^3$

3 0

2 years ago

Seven less than a number is 14 more than 2 times that number. What is the number?

ratelena [41]

Answer:

x=-21

Step-by-step explanation:

x-7=2x+14

-7=x+14

-21=x

4 0

3 years ago

12-7(8*9)<br> 82<br>5-82<br>-77<br><img src="https://tex.z-dn.net/?f=12%20-%207%288x9%29%20%3D%20" id="TexFormula1" title="12 -

Goryan [66]

Well, that's incorrect because according to the Order of Operation [GEMS\BOMDAS\PEMDAS etc.], that -7 has to be distributed amongst all the other terms in parentheses. Besides, you did the wrong operation when you inserted that subtraction symbol in substitution of the parentheses, which means to MULTIPLY. So, the order goes as follows:

12 - 7[72]

-504 + 12 = -492 [OR 12 - 504]

-492 is your answer. You get it now?

3 0

2 years ago