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3 years ago

23x23 Show work please

Mathematics

2 answers:

Arte-miy333 [17]3 years ago

8 0

The awnser would be 23
   x 23
   ____
   529

babunello [35]3 years ago

4 0

Answer:

529

Step-by-step explanation:

so what you do is set up the problem like a addition problem but instead of a plus sign you put a multiplication sign X then multiply 3 x3=9 then puth that under the line the multiply 3x2=6 then put that under the line then put an x under the 9 then you multiply 2x3=6 put that under the line then multiply 2x2 which is 4 then add it up and you get 529

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Suppose a sample of 80 with a sample proportion of 0.58 is taken from a

Anvisha [2.4K]

Answer:

99.7% confidence interval is $[0.4162,0.7437]$

Step-by-step explanation:

The formula for a confidence interval for a population proportion is $CI=\hat{p}\pm z^*\sqrt{\frac{\hat{p}(1-\hat{p})}{n} }$ where $\hat{p}$ is the sample proportion, $n$ is the sample size, and $z^*$ is the critical score for the desired confidence level.

We are given a sample size of $n=80$ and a sample proportion of $\hat{p}=0.58$ . Our critical score for a 99.7% confidence level would be $z^*=normalcdf(0.9985,0,1)=2.9677$

Therefore, the approximate 99.7% confidence interval for the population parameter is $CI=\hat{p}\pm z^*\sqrt{\frac{\hat{p}(1-\hat{p})}{n} }=0.58\pm 2.9677\sqrt{\frac{0.58(1-0.58)}{80} }=[0.4162,0.7438]$

So we are 99.7% confident that the true population proportion is contained within the interval $[0.4162,0.7437]$

3 0

3 years ago

What value of y makes the equation 4x – 3y = 17 true, when x = 2?

earnstyle [38]

Answer:

y = -3

Step-by-step explanation:

4x – 3y = 17

x = 2

4(2) - 3y = 17

8 - 3y = 17

-3y = 9

y = -3

7 0

3 years ago

Read 2 more answers

The markup on a microphone at an electronics store is 80%. The wholesale price was $49.50. What is the retail price of the micro

alisha [4.7K]

Answer:

9.90

Step-by-step explanation:

Original Amount

49.50

Present increase

80% or 0.80

Original x Percent decrease = amount of change

39.60

Original - Amount of change = total

9.90

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3 years ago

Given f(x)=3x-5, find f(x+2).

ohaa [14]

Answer: The answer is 3x+1.

Explanation: I used the given functions to set up and simplify f(x+2).

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2 years ago

Square root of y-13 subtracted by 5 = 3

Butoxors [25]

Y - 13 - 5 = 13
y = 13 - 5
y = 8

4 0

4 years ago