Answer:
2x+5
x is the unknown number, you times it by 2 and add 5 becaseu it is 5 more than twice the number which is 2x
Please mark my answer as >_<
Step-by-step explanation:
Answer:
e = -2
Step-by-step explanation:
Hey man, I got straight A's in math all year so here's the answer!
Good Luck! :)
35 / 5 = 7 ; also 49 /7 = 7
So
? = 8 x 7 = 56
Answer
Missing side length = 56
Answer:
M=47.99988
Step-by-step explanation:
M=1.33333(16+20)
=1.33333(36)
=47.99988
Answer:
Step-by-step explanation:
In the two independent samples application, it involves the test of hypothesis that is the difference in population means, μ1 - μ2. The null hypothesis is always that there is no difference between groups with respect to means.
Null hypothesis: ∪₁ = ∪₂. where ∪₁ represent the mean of sample 1 and ∪₂ represent the mean of sample 2.
A researcher can hypothesize that the first mean is larger than the second (H1: μ1 > μ2 ), that the first mean is smaller than the second (H1: μ1 < μ2 ), or that the means are different (H1: μ1 ≠ μ2 ). These ae the alternative hypothesis.
Thus for the z test:
if n₁ > 30 and n₂ > 30
z = X₁ - X₂ / {Sp[√(1/n₁ + 1/n₂)]}
where Sp is √{ [(n₁-1)s₁² + (n₂-1)s₂²] / (n₁+n₂-2)}