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goldfiish [28.3K]
2 years ago
11

PLEASE HELP ME I BEG YALLL IMA FAIL IF I DONT FINSIH THIS AND ILL MARK BRAINLISET

Mathematics
1 answer:
laila [671]2 years ago
3 0
D is wrong. It’s an exponential function so every year the number of stores it opens grows. Which means there can’t be one number for each year in terms of amount of new stores.
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Simplify -10x - x plzzzz help
Marta_Voda [28]

hi <3

this is a lot simpler if you just ignore the variable (basically the letter)

now you have -10 - 1

which gives you -11

now just add back on the variable to give you your answer of:

-11x

hope this helps :)

4 0
2 years ago
Mikki is taking her test and comes across the following question:
kicyunya [14]

Answer:

A. Normal distribution

Step-by-step explanation:

I just did it on usatestprep

6 0
3 years ago
Chicken Delight claims that 87% of its orders are delivered within 10 minutes of the time the order is placed. A sample of 80 or
jeka57 [31]

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:

H_0: \pi\geq0.87\\\\H_a:\pi

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:

\sigma=\sqrt{\frac{\pi(1-\pi)}{N} }=\sqrt{\frac{0.87*0.13}{80} }=0.0376

The statistic z is then

z=\frac{p-\pi+0.5/N}{\sigma}=\frac{0.7625-0.87+0.5/80}{0.0376} } =\frac{-10125}{0.0376} =-2.70

The P-value is

P(z

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)

6 0
3 years ago
-27 Irrational or rational
shutvik [7]

Answer:

rational

Step-by-step explanation:

irrational is something like pi or square root of 3, -27 is a simple number.

6 0
3 years ago
Read 2 more answers
Nathan ran 2.35 miles on Tuesday and 3.15 on Thursday. What total distance did he run?
tekilochka [14]

Answer:

5.5 miles

Step-by-step explanation:

2.35 + 3.15 =5.5

3 0
2 years ago
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