Answer:
Step-by-step explanation:
sustiute 1 and -1 to x y=tan^3(x) you get postive and negative values , odd function
y=1/sec^3 x is even and same goes on
you cant on brainly only type but put points on the corners and draw that line on the oposite
14: plug in the points to y1-y2/x1-x2 (equation for slope)
20-13/x-11= 7/3
What value of x makes x-11=3 true?
Add three to each side to get x=14
Answer:
Bbbbbbb. b. bb bb b b b b
they want20 character theansser is B
Answer: -1.51
Step-by-step explanation:
Let 
be the population mean rating of car.
As per given , we have
Since population variance is known, so we use z-test.
Test statistic : 
, where n= sample size
= Sample mean
= variance
As per given ,
n=300
Put these values in formula we get
Hence, the value of the test statistic is z= -1.51 .
