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emmainna [20.7K]
3 years ago
10

What is the result if 3x-9 is evaluated when x = -5?​

Mathematics
1 answer:
Anton [14]3 years ago
5 0

Answer:

Step-by-step explanation:

I wonder if it is the minus that is causing the problem?

Let x = - 5

3*(-5) - 9

-15 - 9

This is a money question. If you are 15 dollars in debt and you spend another 9, where are you? (In the company of the American government. They do this all the time).

- 15 - 9 = - 24

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12 {g}^{2}  + 4g - 1

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2 years ago
Suppose f(x)=x^2+3 and g(x)=x-2 find (f-g)(x
SSSSS [86.1K]

Answer:

x^2-x+5

Step-by-step explanation:

(f-g)(x)=f(x)-g(x)

= (x^2 + 3) - (x - 2)   (Don’t forget the -1 multiplies to the x AND -2

= x^2 + 3 - x + 2

=x^2-x+5

6 0
3 years ago
Which statements are true about car color? Choose four correct answers. White is the most popular in every region. Red is the mo
Lisa [10]

Answer:

from my understanding the correct answer should be

Red is the most popular in the East than in the other regions

About 17% of the people in the Midwest have a gray car

White is the most popular in every region

Silver and black are equally popular in the East.

 *** i hope im right sorry if this didnt help:/***

3 0
3 years ago
Read 2 more answers
Julia is the president of the technology Club at school she has $568 to buy as many DVD players as she can for $75 each how many
goblinko [34]
You need to divide the total amount by $75, to see how many DVD players she could buy with the $568.
568÷75= 7 remaining 43 
This means that Julia can buy 7 DVD players, and will have $43 extra dollars left over.
5 0
3 years ago
Find the ratio of the volume of one sphere to the volume of the right cylinder
yarga [219]

Answer:

B


Step-by-step explanation:

<em>Let r be the radius of one sphere.</em>

  • Volume of sphere is V=\frac{4}{3}\pi r^3

Since radius is r,  the height of the cylinder will be 4r

Also, the cylinder has the same radius as the sphere: r


  • Volume of Cylinder is V=\pi r^2 h

Plugging in the values we get: V=\pi (r)^{2}(4r)=4\pi r^3


<u>Ratio of volume of 1 sphere to volume of cylinder is</u>:

\frac{\frac{4}{3}\pi r^3}{4\pi r^3}=\frac{\frac{4}{3}}{4}=\frac{4}{3}*\frac{1}{4}=\frac{1}{3}

The ratio is 1:3

Answer choice B is right.

5 0
3 years ago
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