Question:
What is the value of c in the equation below?
A. -4 B. -2 C. 1/64 D. 1/4
Answer:
Step-by-step explanation:
Given
Required
Find c
The equation can be rewritten as:
Solving:
Apply law of indices
Apply law of indices
Answer:
150 calories
Step-by-step explanation:
They are not equivalent fractions.
Answer:
c) -2/5=0.4 d) -5/2=0.4 are incorrect
Answer:
C.
Step-by-step explanation:
Hypothesis testing procedure:
Hypothesis:
The null hypothesis will be the variances of sales of two musical stores are equal and the alternative hypothesis will be the variances of sales of two musical stores are not equal
Level of significance: alpha=0.05
Test statistic: F=variance A/variance B=(30)^2/(20)^2=900/400=2.25
P-value: p=0.107
As the alternative hypothesis mentioned that the variances are not equal this leads to two tailed test. so the p-value is calculated using excel function 2*F.DIST.RT(2.25,24,15).
Conclusion:
The p-value seems to exceed the alpha=0.05 and this depicts that the null hypothesis should not be rejected.
