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LekaFEV [45]
2 years ago
13

What is the value of the expression below when r = 2?

Mathematics
1 answer:
djverab [1.8K]2 years ago
5 0
The answer is C. 3, because you're essentially saying 9 - (3 × 2) and that is 9 - 6, which equals 3. I hope this helps!
You might be interested in
The Quinn family drove 228 miles in 4 hours at a constant rate. Which equation can be used to determine how far they traveled ea
anyanavicka [17]
What can be used on this is the distance over time formula, so what you,do is divide 228 by 4 to get the distance traveled in one hour. And 288/4=57. So they traveled 57 mi in one hour. Hope this helped.
6 0
3 years ago
Read 2 more answers
5. (03.02 MC)
inn [45]

Answer:

f(4) =2

Step-by-step explanation:

f(x) = 2х^2 - 30,

Let x=4

f(4) = 2 (4)^2 -30

     = 2*16 -30

       =32-30

      = 2

6 0
3 years ago
The ratio of art class to music class is 4:3. If there is 8 more students in art class, how many students are in music class
pishuonlain [190]

Answer:

9 students in music class.

Step-by-step explanation:

In art there are 4 and since there are 8 more 8 + 4 = 12. so there are 12 in Art.

4 x _ = 12. —> 4 x 3 = 12.
so we need to do the same for music class.

For music there are 3.
so we multiply by 3 like we did with the 4.

3 x 3 = _ —> 3 x 3 =9.
so there are 9 students in music class.


6 0
2 years ago
Divide 30 in the ratio into 3:2
Arlecino [84]
3+2 = 5
30 / 5 = 6
so
3 x 6 = 18
2 x 6 = 12

answer
ratio 3: 2 =18:12
6 0
3 years ago
4. How much time will it take for a bug to travel 7.5 meters across the floor if it is traveling at 1 m/s?
scZoUnD [109]

It will take the bug 7.5s to travel across the floor.

Step-by-step explanation:

Distance = 7.5 meters

Speed = 1 m/s

The formula for speed is

Speed = \frac{Distance}{Time}\\\\Time = \frac{Distance}{Speed}\\Time=\frac{7.5}{1}\\Time=7.5\ s

It will take the bug 7.5s to travel across the floor.

Keywords: distance, speed

Learn more about distance at:

  • brainly.com/question/4460262
  • brainly.com/question/4464845

#LearnwithBrainly

4 0
3 years ago
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