(7x³-4x²) + (2x³-4x²)
= 7x³-4x²+2x³-4x²
Add like terms,
=9x³-8x²
Answer:
6 x 4 x 4 Hope I get u right<3
Step-by-step explanation:
B. |x+20|=35
This is because 20 is the minimum time, so you have to add that to whatever x is. since x can be the minimum or maximum, this further proves this statement. You can also know this is correct because the final product (35) was the maximum time shown in the world problem
May I have brainliest please? :)
Answer: 2.5
Step-by-step explanation:
Let be the population mean .
Then, Null hypothesis :
Alternative hypothesis :
We assume that this is a normal distribution.
Given : Sample size : n=25 , since the sample is small (n<30) so we cannot apply z-test . Thus the test is t-test.
Sample mean :
Population standard deviation :
The test statistic for population mean is given by :-
i.e.
Hence, the observed critical value = 2.5
The equation is:
2015÷5-8
The awnser is 395
Take 395×8+5
That leaves the awnser 3165