Answer:
Check the explanation
Step-by-step explanation:
a ) let u(1) is the population at a mean rate for the college students who are of the male gender.
u(2) is the population mean for female college students
H0:u(1) = u(2)
Ha:u(1) \neq u(2 )
2 ) using minitab>stat>basic stat>two sample t
we have
Two-Sample T-Test and CI
Sample N Mean StDev SE Mean
1 29 70.50 2.90 0.54
2 30 69.60 3.30 0.60
Difference = μ (1) - μ (2)
Estimate for difference: 0.900
95% CI for difference: (-0.722, 2.522)
T-Test of difference = 0 (vs ≠): T-Value = 1.11 P-Value = 0.271 DF = 57
Both use Pooled StDev = 3.1099
degree of freedom = 57
here p value will be two sided
3 ) using the output
t value = 1.11
p value = 0.271
4 ) since p value is greater than 001 so we will accept the null hypothesis .
we will conclude that average of male and female college basketball players are same
So the problem ask to calculate and formulate a function that could represent the water level in Portland if y is the water level and t is for time in hour so the possible answer would be that y=cosine(t)-0.3. I hope you are satisfied with my answer and feel free to ask for more
Answer:

Step-by-step explanation:

Subtract 4x from both sides:


Divide both sides by -5:


Answer:
No
Step-by-step explanation:
No, because the perimeter of a rectangle is 2(x+y). Justin added the sides. Then he should have multiplied by 2 but he didn't so Justin is incorrect.
Hope this helps plz mark brainliest :D
Answer:
9(x+3) + 2(x+3) or 10(x+2) +(x+5)
Step-by-step explanation:
First you want to distribute the equation.
4(x+1) + 7(x+3) multiplied out is
4x + 4 + 7x + 21
Now we add like terms so it comes out to
11x + 25
Two expressions that can come out to equal 11x + 25 is. 9(x+3) + 2(x+3) or 10(x+2) +(x+5)