Solve for x in the equation x - 4 = 7.
A. X = -3
B. x = 11
C. x = 28
D. x = 3

Steps to solve:

x - 4 = 7

~Add 4 to both sides

x - 4 + 4 = 7 + 4

~Simplify

x = 11 (Option B)

Best of Luck!

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

dc=6 square root of 3 and ac is 12 square root 3

c and d

step-by-step explanation:

square root of 3/2 = 18/c

cross multiply to get 18*2=√3*c

36/√3 * √3/√3 = c

c= 36*√3/3

c=12√3