I need help finding what x=?

8

Step-by-step explanation:

Intersecting chord thereom states a*b= c*d

a*b= 10*4= 40 so

40 = 5*xwhich is the same as 40=5x which means x= 8

the car was traveling 40 mph before it started skidding. ( 2 points ) 17. was the driver were her brakes working at 75% efficiency or better? ( 2 points ) yes 29.

step-by-step explanation:

= 5

step-by-step explanation:

to find the 15th term substitute n = 15 into the nth term formula

= (- 3 × 15 ) + 50 = - 45 + 50 = 5