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asambeis [7]
3 years ago
14

The equation x+15=18

Mathematics
2 answers:
jarptica [38.1K]3 years ago
8 0

15-18= 3 X=3 Too short  Too short

Lapatulllka [165]3 years ago
6 0

x is equal too 3. You can check your answer by subtracting 18-15

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In order to estimate the average time spent per student on the computer terminals at a local university, data were collected for
tatuchka [14]

Answer:

With a .95 probability, the margin of error is = 0.392

Step-by-step explanation:

Given -

In order to estimate the average time spent per student on the computer terminals at a local university, data were collected for a sample of 81 business students over a one-week period.

Sample size ( n ) =81

Standard deviation (\sigma ) = 1.8 hours

\alpha = 1 -.95 =.05

Z_{\frac{\alpha }{2}} = Z_{\frac{.05 }{2}} = 1.96           (Using Z table)

With a .95 probability, the margin of error is

Margin of error  =  Z_{\frac{\alpha }{2}}\frac{\sigma }{\sqrt{n}}

                          = Z_{\frac{.05 }{2}} \frac{1.8 }{\sqrt{81}}

                           = 1.96\times 0.2

Margin of error   = 0.392

   

8 0
3 years ago
Help with this equation I need to turn it in
Gennadij [26K]

Answer:

y=12x+40

Step-by-step explanation:

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4 0
1 year ago
Please help me please
SVETLANKA909090 [29]

Answer: x is 125

Step-by-step explanation: Angles P and S are also consecutive angles, adding up to 180 degrees. 180-55 = 125, so adding the two angles together is 180 degrees. Thus, x is 125.

5 0
2 years ago
Between which two consecutive integers does √53 lie?
GREYUIT [131]
Hey there :)

We can solve 2 ways: With a calculator and Without

With:
√53 = 7.28

Therefore this lies between 7 and 8

Without:
6² and 7² = 36 and 49
Still, the values are less than 53, which means √53 does not lie between 6 and 7

7² and 8² = 49 and 64
53 is between both values, therefore √53 lies between 7 and 8

Your answer will be option B) 7 and 8
8 0
3 years ago
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mario62 [17]
The answer is 2 answer 2
4 0
3 years ago
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