Answer:
Test value = 3.49
Step-by-step explanation:
We are given the following in the question:
Alpha, α = 0.05
First, we design the null and the alternate hypothesis
We use F-test to determine the difference in variation between the two samples.
Formula:
Putting all the values, we have
Now, 
Comparison:
We reject the null hypothesis and accept the alternate hypothesis.
Thus, there is variation in advertising cost of salon and the advertising cost of nails.
Answer:
11.1
Step-by-step explanation:
To find the side measurement we have to use trig, and the trig function Cosine, or cos. We use the because cosθ=
. So cosθ=
, then to isolate x multiply both sides by 15. Now we have 15cos42=x, plugging this into the equation we get that x=11.1
Answer:
the answer is 3x minus 2 because when u combine the x terms it's 3x and 2 doesn't have any other like term
A. I’m so sorry I cant tell you how to do this part, get a formula chart from the Internet and just plug in the answers.
B. The slope of the ladder is also how it is slanted, if I’m reading it correctly, it’s there slanted part.
C. Much harder omgosh, imagine leaning a ladder up against a strait wall, and then pitting your weight I=on it backwards, here’s a hint you would fall flat on your back.
Answer:
x<2
Step-by-step explanation:
multiply 5 by the numbers inside the parenthesis
5x-10<-3x+6
add 10 to both sides
5x-10+10<-3x+6+10
simplify
5x<-3x+16
add 3x to both sides
5x+3x<-3x+16+3x
simplify
8x<16
divide by 8
8x/8 < 16/8
x<2
