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stich3 [128]
2 years ago
13

HELP

Mathematics
1 answer:
larisa86 [58]2 years ago
3 0

Answer:

272,748

Step-by-step explanation:

Multiply 160,440 by .70 and get a total of 112,308. Then you add 112,308 to 160,440 to get a total of 272,748 miles

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The lenght of the square-shaped field edge is 240 meters. Calculatr the field area in hectares​
Katena32 [7]

Answer:

5.76 hectares

Step-by-step explanation:

Area = 240 meters × 240 meters

Area = 57600 meter square

Convert to hectares by dividing 10.000

Area = 5.76 hectares

I hope this helps you :)

6 0
3 years ago
Which of the following is not a characteristic of both experiments and
suter [353]

The researcher exercise direct control over at least one variable.

8 0
3 years ago
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Can anyone help with this question please!
Snowcat [4.5K]

Answer:

6 in

Step-by-step explanation:

A= bh

18 as our area= 3 as our base and (x) as the height

18/3 = 6

so 6 is the height

Let's make sure that the answer is right:

A= bh

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A= 18

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3 years ago
-2(x-1) I need help????????
12345 [234]

Answer:

-2x+2

Step-by-step explanation:

6 0
3 years ago
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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
3 years ago
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