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viva [34]
3 years ago
6

Which best explains why |-4| = 4?

Mathematics
1 answer:
Dmitry [639]3 years ago
7 0

Answer:

The Answer is C, because -4 is 4 units away from 0

Step-by-step explanation:

The signs | | tells us directly how far a number is from zero. This is represented by said number

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Please help!!!<br><br> This is my measurement homework
tatyana61 [14]
10) 4 1/2 inches thick. You would add them together and simplify 2/4 into 1/2.

11) Yes. He needed a stick that was about 5 feet long. It is only a little longer and he could easily make it shorter.
7 0
3 years ago
(1 point) solve the separable differential equation y′(x)=2y(x)+18−−−−−−−−−√, y′(x)=2y(x)+18, and find the particular solution s
luda_lava [24]
We write the equation in terms of dy/dx,
<span>y'(x)=sqrt (2y(x)+18)</span>
dy/dx = sqrt(2y + 18)
dy/dx = sqrt(2) ( sqrt(y + 9)) 

Separating the variables in the equation, we will have:
<span>1/sqrt(y + 9) dy= sqrt(2) dx </span>

Integrating both sides, we will obtain
<span>2sqrt(y+9) = x(sqrt(2)) + c </span>
<span>where c is a constant and can be determined by using the boundary condition given </span>
<span>y(5)=9 : x = 5, y = 9
</span><span>sqrt(9+9) = 5/sqrt(2) + C </span>

<span>C = sqrt(18) - 5/sqrt(2) = sqrt(2) / 2</span>

Substituting to the original equation,
sqrt(y+9) = x/sqrt(2) + sqrt(2) / 2

<span>sqrt(y+9) = (2x + 2) / 2sqrt(2) 
</span>
Squaring both sides, we will obtain,
<span>y + 9 = ((2x+2)^2) / 8</span>

y = ((2x+2)^2) / 8 - 9
7 0
4 years ago
The value of a collector’s item is expected to increase exponentially each year. The item is purchased for $500. After 2 years,
Andreyy89
Y = 500(1 + r)^x; where r is the rate and x is the number of years.
500(1 + r)^2 = 551.25
(1 + r)^2 = 551.25/500 = 1.1025
1 + r = sqrt(1.1025) = 1.05

Therefore, the equation that represents y, the value of the item after x years is
y = 500(1.05)^x
7 0
3 years ago
Bob and Cheryl are taking a road trip that is 188.3 miles Bob drove 5/7 of the total distance how many miles did Bob Drive
nika2105 [10]
188.3 divided by 7 = 26.9
26.9 x 5 = 134.5
4 0
3 years ago
Standard of living is the level at which
Serggg [28]

Answer:

hope it helped you

Step-by-step explanation:

Standard of living refers to the level of wealth, comfort, material goods, and necessities available to a certain socioeconomic class or geographic area. Quality of life, on the other hand, is a subjective term that can measure happiness.

6 0
3 years ago
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