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Elina [12.6K]
2 years ago
11

So yall finna ignore my question even when I offer brainliest?!

Mathematics
1 answer:
murzikaleks [220]2 years ago
5 0

Answer:

(39) -6x+7 (40) 33n+15 (41) -4a-4 (42) 2k

Step-by-step explanation:

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A survey found that 89% of a random sample of 1024 American adults approved of cloning endangered animals. Find the margin of er
Kobotan [32]

Answer:

The margin of error for the survey is 0.016

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 1024

Sample proportion:

\hat{p} = 89\% = 0.89

We have to find the margin of error associated with a 90% Confidence interval.

Formula for margin of error:

z_{stat}\times \sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}

z_{critical}\text{ at}~\alpha_{0.10} = 1.64

Putting the values, we get:

M.E = 1.64\times (\sqrt{\dfrac{0.89(1-0.89)}{1024}})\\\\M.E=0.016

Thus, the margin of error for the survey is 0.016

3 0
3 years ago
If you are working with less than, or greater than. If there is a negative do you switch the sign? For example 9t-4>32
kirill [66]

Answer:

Rule:  If working with an inequality and you either mult. or div. by a negative number, you must reverse the direction of the inequality symbol.

Step-by-step explanation:

Your job here is to simplify 9t-4>32, in which the variable (t) is already positive.  Here you do NOT switch signs or reverse the direction of the inequality symbol.  Adding 4 to both sides, we get 9t > 36, or t > 4.

If, however, you had  -9t-4>32 to work with, the situation would be different because t in this inequality is negative.  Adding 4 to both sides results in:

-9t > 36.  To solve for t, we must divide both sides by -9 AND reverse the direction of the inequality symbol:

t < -4.

Rule:  If working with an inequality and you either mult. or div. by a negative number, you must reverse the direction of the inequality symbol.


8 0
3 years ago
The temperature on a winter day increased 37oF. If the beginning temperature was -9oF, what was the temperature after the increa
Rashid [163]
If you would like to know what was the temperature after the increase, you can calculate this using the following step:

the beginning temperature: -9
increased: 37
the temperature after the increase: -9 + 37 = 28oF

The temperature after the increase was 28oF.
5 0
3 years ago
Read 2 more answers
Plz, Help me with this question plz!!!
vekshin1
I think it’s 2/8-4 hopefully that’s helps
3 0
3 years ago
Fran paid a $50 registration fee to join the gym. she pays $20 each month. how much will fran pay for a year membership at the g
Serggg [28]
20×12=240
240+50=290
6 0
3 years ago
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