Answer:
E. .10
Step-by-step explanation:
Total number of grades sampled, n = 100
Proportion of failure = number of failure/ total number of grades sampled
Proportion of failure for Prof A = 13/100 = 0.13
Proportion of failure for Prof B = 0/100 = 0
Proportion of failure for Prof C = 11/100 = 0.11
Proportion of failure for Prof D = 16/100 = 0.16
The total proportion of failures of all instructors = 0.13+0+0.11+0.16 =0.14
Compute the estimate of the mean proportion of failures for the four instructors =0.4/4 =0.10
The estimate of the mean proportion of failures for these instructors is 0.10
Answer:
Yes, they are similar triangles
Step-by-step explanation:
If you make a proportion using vertical side/horizontal side
If you multiply 4/10 by 3/3 you will get 12/30, so the triangles are similar.
Answer:
268
Step-by-step explanation:
2(2×6+2×2+2×6) + 2(4×5+4×10+10×5) - 2(2×2)
= 56+220-8
= 268 cm²
Answer:1
Step-by-step explanation: f(x)=-2 |x+1|
plug in the f(x) which is -2 into x to solve.
|-2+1|= |-1|= 1, it turns into positive 1.
I'm guessing d b are equal and a and c are equal or I don't think we would be able to solve so going on that
if angle d is 57 angle b must also be 57
A parallelegram has angles that add up to 360
So 360= 57+57+2c
Solve
360=114+2c
-114 both sides
246=2c
÷2 both sides
123=c
