On their A certain automobile manufacturer
has elected to use a
timing chain
rather than a timing
belt
new interference motor. 150 test
motors were run through a series
of stress tests. The tests revealed
that the timing chains lasted 120k
miles on average with a standard
deviation of GK miles. How many
of the 150 test motors had timing
Chains last over 132k miles?

the answer is 375 miles

step-by-step explanation:

3

step-by-step explanation:

because where the point where the 2 lines intersect is (3,-1) the x value is 3

answer: 75°

step-by-step explanation:

∠esk is the supplement of ∠edk, so is 100°. ∠esd = 1/2·arc ed, so is 25°.

since ∠esk = ∠esd + ∠dsk

you have 100° = 25° + ∠dsk . .

fill in known values 75° = ∠dsk . . . . .

subtract 25°

step-by-step explanation: