In the equation above, a,b, and c are constants. if the equation is true for all values of x, what is the value of b?

b=19

Step-by-step explanation:

We are given that an equation

Given that the equation is true for all x

We have to find the value of b

Comparing coefficients of xand constant value  on both side then we get

Hence, the value of b=19

i leave the calculator work to you.

7. diameter 4 miles, circumference 4π miles

8. radius 0.2 miles, circumference 0.4π miles

[this is a bad problem because the actual radius of a car on the track is less than 0.2 miles so the answer is less than 0.4π miles]

9. radius 6 feet, circumference 12π feet

10. diameter 14 cm, circumference 14π cm

11. diameter 4.8 feet, circumference 4.8π feet

40 x 50 = 2000

step-by-step explanation: