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Brilliant_brown [7]
3 years ago
10

Solve the inequality.2(4+2x)>5х+5 x<-2 x>-2х<3x>3​

Mathematics
1 answer:
olga_2 [115]3 years ago
4 0

Answer:

x<3

Step-by-step explanation:

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dem82 [27]

$10,000 at 7% continuous compounding for 8 years

10000 e^{0.07 (8)} = 17506.7

Answer: A

3 0
3 years ago
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I need help understanding how to solve this problem .
ladessa [460]
5*2x|x|-6=24

10*|x|-6=24

10*|x|=30

Divided both sides of the equation by 10

|x|=3

X=3 X=-3
4 0
3 years ago
15/30 = n/34 round to the nearest tenth.
avanturin [10]
The equation given in the question has to be answered to the nearest tenth. The only thing that one should be careful about is the cross multiplication part. Other than that there is no difficulty in the given problem. Now let us get down to the equation in the question.
15/30 = n/34
30 * n = 15 * 34
30n = 510
n = 510/30
   = 51/3
   = 17
So the value of the unknown variable "n" comes out to be 17.
6 0
3 years ago
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The National Center for Educational Statistics surveyed 5400 college graduates about the lengths of time required to earn their
fenix001 [56]

Answer:

The 90% confidence interval for the mean time required by all college graduates is between 5.36 years and 5.44 years.

Step-by-step explanation:

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\alpha = \frac{1-0.9}{2} = 0.05

Now, we have to find z in the Ztable as such z has a pvalue of 1-\alpha.

So it is z with a pvalue of 1-0.05 = 0.95, so z = 1.645

Now, find the margin of error M as such

M = z*\frac{\sigma}{\sqrt{n}}

In which \sigma is the standard deviation of the population and n is the size of the sample.

M = 1.645*\frac{1.9}{\sqrt{4500}} = 0.04

The lower end of the interval is the sample mean subtracted by M. So it is 5.4 - 0.04 = 5.36 years.

The upper end of the interval is the sample mean added to M. So it is 5.4 + 0.04 = 5.44 years.

The 90% confidence interval for the mean time required by all college graduates is between 5.36 years and 5.44 years.

3 0
3 years ago
3. Fine the value of x. <br> A) 3.5<br> B)7<br> C) 5<br> D)10
Rom4ik [11]

Answer:

I would say B

Step-by-step explanation:

I think

5 0
3 years ago
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