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Charra [1.4K]
2 years ago
12

Simplify: 675 ÷ (6 + 9 ÷ 3)

Mathematics
1 answer:
Afina-wow [57]2 years ago
4 0
The answer is 111.5 :) :-)
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A bottle maker believes that 14% of his bottles are defective. If the bottle maker is accurate, what is the probability that the
Hitman42 [59]

Answer:

z = \frac{0.11-0.14}{0.0139} = -2.156

And we can use the normal standard distribution table and we got:

P(Z

Step-by-step explanation:

For this case we know the following info given:

p =0.14 represent the population proportion

n = 622 represent the sample size selected

We want to find the following proportion:

P(\hat p

For this case we can use the normal approximation since we have the following conditions:

i) np = 622*0.14 = 87.08>10

ii) n(1-p) = 622*(1-0.14) =534.92>10

The distribution for the sample proportion would be given by:

\hat p \sim N (p ,\sqrt{\frac{p(1-p)}{n}})

The mean is given by:

\mu_{\hat p}= 0.14

And the deviation:

\sigma_{\hat p}= \sqrt{\frac{0.14*(1-0.14)}{622}}= 0.0139

We can use the z score formula given by:

z=\frac{\hat p -\mu_{\hat p}}{\sigma_{\hat p}}

And replacing we got:

z = \frac{0.11-0.14}{0.0139} = -2.156

And we can use the normal standard distribution table and we got:

P(Z

4 0
3 years ago
spent $135 at the store. He bought a pair of pants for $27. Then he bought 9 shirts. If each shirt cost the same amount, how muc
den301095 [7]

Answer:

each shirt cost $12

Step-by-step explanation:

6 0
3 years ago
A stone pyramid in egypt has a square base that measures 157 m on each side. the height is 95 m. what is the volume of the pyram
fomenos
Volume of square pyramid = (base area) * h/3
= (157 * 157) * 95/3
=24,649 * 95/3
=780,551.67 m3
Btw [*] means multiply

☺
3 0
3 years ago
Need help quick ASAP!!!
Dmitry_Shevchenko [17]
The answer is 3 and I'm just going to keep typing because I can't post under 20 characters
4 0
3 years ago
Read 2 more answers
HELPPPPPP I DON'T KNOW THIS !!<br> I will give brainliest to the CORRECT ANSWER :(
Kamila [148]

Step-by-step explanation:

260 square inches

is the right answer

4 0
2 years ago
Read 2 more answers
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