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blsea [12.9K]
3 years ago
14

A

Mathematics
2 answers:
fredd [130]3 years ago
7 0
The answer to your question 2456
salantis [7]3 years ago
4 0

Answer:

54280

Step-by-step explanation:

We are given a lot of information here, so the first thing we need to do is figure out what the problem is. We are asked to find the amount left in the IRA if the retiree takes money out now. To find this, all we need to know is his age, the amount in his IRA account, the percent he plans to take out, the age where no penalty is taken for withdrawals, and the penalty percentage for taking out money before age is not reached. All the other information is irrelevant. We are told that he is 68 and the age for no penalty is 72. Now we need the percent he wants to take out, which is 2% and the penalty is 6%. We are also told he has $59,000 in his IRA account. We first add the percent he plans to take out with the penalty percent, then multiply by the amount in his IRA

2+6=8%

0.08⋅59000=4720

Now, we subtract that amount from the original IRA amount

59000−4720=$54,280

So, $54,280 will be left in his IRA.

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Specifications call for the wall thickness of two-liter polycarbonate bottles to average 4.0 mils. A quality control engineer sa
bija089 [108]

Answer:

The null hypothesis μ=4.0 could not be rejected.

Step-by-step explanation:

In this problem we have to perform a hypothesis test of the mean, with s.d. of the population unknown.

The sample is: [3.999, 4.037, 4.116, 4.063, 3.969, 3.955, 4.091]

This sample has a mean of 4.033 and a standard deviation of 0.061.

The null and alternative hypothesis are:

H_0: \mu = 4.0\\\\H_1: \mu \neq 4.0

We assume a significance level of 0.05.

The test statistic for this test is:

t=\frac{M-\mu}{\sigma}=\frac{4.033-4.0}{0.061}=0.536

We have a sample size n=7, so the degrees of freedom are 7-1=6.

For a two-tailed test, t=0.536 and df=6, the P-value can be look up in a t-table.

The P-value is 0.61. Is greater than the significance level, so the effect is not significant and the null hypothesis can't be rejected.

8 0
4 years ago
Solve for x <br> -4x+6(6-2x)=-7-36<br> A) 8<br> B) 15<br> C) -7<br> D) 3
wlad13 [49]

Answer:

D) 3 would be the answer

7 0
3 years ago
How many cubic inches of material do you need to make a solid rubber ball with diameter<br> of 3
Lera25 [3.4K]

Answer:

Step-by-step explanation:

What we're looking for here is the volume of this ball, which is the volume of a sphere:

V=\frac{4}{3}\pi  r^3

If our diameter is 3, then the radius is 1.5:

V=\frac{4}{3}\pi  (1.5)^3

In terms of π, the solution is

4.5\pi which can also be expressed as \frac{9\pi }{2}

Or if you have to multiply in the pi, the solution is

V = 14.14 cubic inches

6 0
3 years ago
Read 2 more answers
Fill in the blank to make an equivalent fraction 4/6=28_
Irina-Kira [14]
The answer is 2/3 I think
7 0
4 years ago
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Why is 0 not an identity for subtraction? explain
ki77a [65]
When zero is added to or subtracted to a number, the number is not affected.
5 0
3 years ago
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