2 years ago

What is (-72/9) + (-64/8) + (44/- -11)

Mathematics

1 answer:

mina [271]2 years ago

4 0

Answer: -12

use the () to sole the problem at one step at a time.

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Nine times the sum of a number 7 and 3 equals .

Artist 52 [7]

Answer:

i believe 90 is the answer because if 7+3 is 10, then 9x10 is 90.

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2 years ago

What is the awnser to 92 times 68

konstantin123 [22]

92 times 68 is 6,256

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3 years ago

Would 3.24 be an integer?

alexgriva [62]

That’s a irrational number

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3 years ago

Public opinion in the large city of Bedrock is that 60 percent of the residents are in favor of increasing taxes to fund alterna

uysha [10]

Answer: 0.8461

Step-by-step explanation:

Let p be the proportion of residents are against the increase of taxes to fund alternatives to drug addiction treatment.

As per given , we have p=0.40

A random sample is taken with size : n= 400

Expecting sample proportion : $\hat{p}=\dfrac{150}{400}=0.375$

Now , the probability that more than 150 of the residents surveyed will be against increasing taxes if a random sample of 400 residents are surveyed will be :

$P(p>0.375)=P(\dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}>\dfrac{0.375-0.40}{\sqrt{\dfrac{0.40(0.60)}{400}}})$

$=P(z>\dfrac{0.375-0.40}{\sqrt{\dfrac{0.40(0.60)}{400}}})\ \ [\because\ z=\dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}]$

$=P(z>-1.02)=P(z-z)=P(Z$

$\approx0.8461$ [By z-table]

Hence, the approximate probability that more than 150 of the residents surveyed will be against increasing taxes if a random sample of 400 residents are surveyed is 0.8461 .

4 0

3 years ago

Solve for n <br> n + 6 = 12

zepelin [54]

Answer:

n=6

Step-by-step explanation:

12-6=6

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2 years ago

Read 2 more answers