Answer:
2
Step-by-step explanation:
First, you do the subtraction 120-21.4 which is 98.7. So since you know its x^7, the number isn't going to be big. By guessing and checking, we start with 2. 2^7 is 128. We know that 1^7 would just be 1, so the closest whole number would be two.
Answer:
360 miles
Step-by-step explanation:
The unit rate here is (240 miles) / (2 hours), or 120 mph.
In 3 hours the vehicle travels (120 mph)(3 hrs) = 360 miles
Answer:
Sample size n = 1382
so correct option is D) 1382
Step-by-step explanation:
given data
confidence level = 99 %
margin of error = 3%
probability = 25 %
to find out
How large a sample size needed
solution
we know here P = 25 %
so 1 - P = 1 - 0.25
1 - P = 0.75
and we know E margin of error is 0.03 so value of Z for 99%
α = 1 - 99% = 1 - 0.99
α = 0.01
and 
= 
= 0.005
so Z is here
= 2.576
so
sample size will be
Sample size n = 
put here value
Sample size n = (\frac{2.576}{0.03})^2 * 0.25 * 0.75
Sample size n = 1382
so correct option is D) 1382
Answer:
x+4
Step-by-step explanation:
What I like to do in these types of problems is to separate the terms with a variable and those without.
So move +4 to the very end of the problem to make it look like this:
6x-3x-2x+4
Now simply subtract! After subtracting the first two terms (6x and -3x) it should look like this:
3x-2x+4
Then subtract once more (3x-2x)!
x+4
This cannot be simplified anymore so x+4 should be your final answer!
Answer:
-3 1/3 , - 1 , -1/2 , 0 , 1 , 4 , 5 , 6 , 21/5
