Answer:
x = 1.8/
Step-by-step explanation:
-1.5(-4x-4) = -1.5(-4x) + -1.5(-4) = 6x + 6
The negatives cancel each other out.
4x-2(-5x+8.7)+9 = 4x + -2(-5x) + -2(8.7) + 9 = 4x + 10x -17.4 + 9 = 14x -8.4
6x + 6 = 14x -8.4
-14x -14x
-8x + 6 = -8.4
-6 -6
-8x = -14.4
/-8 /-8
x = 1.8/
Answer:
There is strong evidence that less than 87% of the orders are delivered in less than 10 minutes.
Decision rule: Reject the null hypothesis if (P-value < level of significance)
Test statistic z=-2.70
Decision: Reject the null hypothesis (0.003<0.010)
Step-by-step explanation:
In this question we have to test an hypothesis.
The null and alternative hypothesis are:
The significance level is assumed to be 0.01.
The sample of size n=80 gives a proportion of p=61/80=0.7625.
The standard deviation is:
The statistic z is then
The P-value is
The P-value (0.003) is smaller than the significance level (0.010), so the effect is significant. The null hypothesis is rejected.
There is strong evidence that less than 87% of the orders are delivered in less than 10 minutes.
Decision rule: Reject the null hypothesis if (P-value < level of significance)
Test statistic z=-2.70
Decision: Reject the null hypothesis (0.003<0.010)
Answer:
Divison
Step-by-step explanation:
The question is asking how many times 5 can go into 45 which is 9 times.
1/4 is the answer to your question.