Answer:
Step-by-step explanation:
Q. 17
Verticle angles are congruent
(6x+7) = (8x-17)
-6x from both sides
7 = 2x-17
add 17 to both sides
2x = 24
divide 24 by 2
x = 12
Q. 18
Linear pair = 180
(11x-15) + (5x-13) = 180
11x + 5x - 15 - 13 = 180
16x - 28 = 180
Add 28 to both sides
16x = 208
Divide 16
x = 13
the answer to the question is 4
Answer:
The probability that the mean of a sample of 36 cars would be less than 3245 miles
P(X⁻≤3245) = 0.975
Step-by-step explanation:
<u><em>Step(i)</em></u>:-
The mean number of miles between services
μ= 3408 miles
The Variance of miles between services
σ² = 249,001
σ = √249,001 = 499
Let 'X' be a random variable in a normal distribution
Given sample size 'n' =36
<u><em>Step(ii):</em></u>-
Z = -163/83.16 = 1.96
The probability that the mean of a sample of 36 cars would be less than 3245 miles
P(X⁻≤3245) = P(Z≤1.96)
= 0.5 + A(1.96)
= 0.5 + 0.4750
= 0.975
<u><em>Final answer</em></u>:-
The probability that the mean of a sample of 36 cars would be less than 3245 miles
P(X⁻≤3245) =0.975
Answer:
a = 600
b = 1200
Step-by-step explanation:
a =,
600 = 100%
60 = 10%
with simple interest you add the original ten percent each time so,
600+60+60+60+60+60 etc....
or
you could do 600 x 1.1¹⁰
they both work the same
b = 600 + (ans of a)
Answer:

Step-by-step explanation:
First, you add 66 to both sides so then the equation you are trying to solve will be: 
Finally, you simplify and get: 
Hope this helped!