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Viefleur [7K]
3 years ago
12

Please help! will give 50 points

Mathematics
2 answers:
Vaselesa [24]3 years ago
7 0

Answer:

4

Step-by-step explanation:

the 20 meets up with the 4

so 4

Trava [24]3 years ago
7 0

Answer:

4 miles

Step-by-step explanation:

The storm is 4 miles away. As we compare the graph, we come to know that 20 seconds corresponds to 4 miles.

See the attached file for more understanding.

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In a study of computer use, 1000 randomly selected Canadian Internet users were asked how much time they spend using the Interne
Dvinal [7]

Answer:

b. Do not reject H0. We do not have convincing evidence that the mean weekly time spent using the Internet by Canadians is greater than 12.7 hours.

Step-by-step explanation:

Given that in a study of computer use, 1000 randomly selected Canadian Internet users were asked how much time they spend using the Internet in a typical week. The mean of the sample observations was 12.9 hours.

H_0: \bar x =12.7\\H_a: \bar x >12,7

(Right tailed test at 5% level)

Mean difference = 0.2

Std error = \frac{6}{\sqrt{1000} } \\=0.1897

Z statistic = 1.0540

p value = 0.145941

since p >alpha we do not reject H0.

b. Do not reject H0. We do not have convincing evidence that the mean weekly time spent using the Internet by Canadians is greater than 12.7 hours.

5 0
3 years ago
If Y varies directly with X, and Y = -5 and X = 7, what is X when Y = -85?
Tasya [4]

Answer:

X = 119

Step-by-step explanation:

Step 1: Given

Y = -5 X = 7

Y = -85 X = n

Step 2:

-85 ÷ -5 = 17

Step 3:

17 × 7 = 119

Answer:

Y = -5 X = 7

Y = -85 X = 119

n = 119

6 0
3 years ago
10.045+2.673+105.95 to the nearest whole number and then estimate the sum
horsena [70]

Answer:

119

Step-by-step explanation:

The nearest whole numbers from those listed are

10

3

106

The estimated sum = 119

The actual sum is 118.668

When you are doing a test, being able to estimate is a very powerful skill. 119 is close enough to the actual answer that you know your actual answer is likely correct.

5 0
3 years ago
You are planning a party. You want to rent a snow cone machine, and the snow cone company charges a $25 set-up fee plus $15 per
dezoksy [38]
The answer would be 15h+25 because h isthe variable representing hours and they charge $15 for every hour. And also, the plus 25 is for the setup fee.
5 0
3 years ago
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What is the equation in slope-intercept form of a line that passes through the point (4, 5) and has a slope of 1/2?
Alisiya [41]

Answer:

90% of people marry there 7th grade love. since u have read this, u will be told good news tonight. if u don't pass this on nine comments your worst week starts now this isn't fake. apparently if u copy and paste this on ten comments in the next ten minutes you will have the best day of your life tomorrow. you will either get kissed or asked out in the next 53 minutes someone will say i love you

3 0
3 years ago
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