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Setler79 [48]
3 years ago
9

Simplify each expression

Mathematics
1 answer:
Verizon [17]3 years ago
8 0

Answer:

  1. -5n-1
  2. 72b+56

Step-by-step explanation:

<h2>Q: -(5n-1)-2</h2>
  • -5n+1-2
  • -5n-1
<h2>Q: -8b+8 (10b+7)</h2>
  • -8b+80b+56
  • 72b+56
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The diameter of a circle is 3 meters. What is the circumference?
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Answer:

C≈9.42m

Using any of this formulas

C=2πr

C=2πrd=2r

Solution:

C=πd=π·3≈9.42478m

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3 years ago
[ f°g](x)<br><br> 12. f(x) = -3x<br> g(x) = 5x - 6
irinina [24]

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Step-by-step explanation:

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2 years ago
The High Roller, a giant ferris wheel in Las Vagas, casts a 242-foot shadow. A 6’3” tall man standing nearby casts a 2 3/4-foot
Ira Lisetskai [31]

Answer:

550ft

Step-by-step explanation:

Simple napkin math, so you know what both shadows are you need to find how tall the High Roller is we will use X for this.

\frac{242ft}{6'3"}  x \frac{x}{2'9"}

Im not 100% I set it up right but essentially 242 divided by 2'9" and that equals 88

Take 88 and multiply that by 6'3" and you get your Height for the High Roller

What I did their was I scaled the humans height to that of the High Roller dividing it gives you a number you can use to scale the height of that human to how it should scale to the High Roller, which is why I took 88 and multiplied it by the human's height.

Hope this helped :)

6 0
3 years ago
A big dump truck delivers gravel to a construction site. The dump truck has a rectangular bed that is 3 meters wide and 4 meters
uysha [10]

Answer:

24m^3

Step-by-step explanation:

Volume is L x W x H which is base times width times height. So you take the Length (3), the width (4) and the height (2) you multiply them together to get 24m. but your not done. you have to add the exponent

3 0
3 years ago
Explain two ways to solve 20=5(-3+x)
Ne4ueva [31]

Answer:

I only know one way and its x = 7

Step-by-step explanation:

20 = 5( x -3 )

20/5 = x- 3

4 = x - 3

4 + 3 = x

7 = x

4 0
3 years ago
Read 2 more answers
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