3 years ago

NEED HELP!!! please:)

Mathematics

1 answer:

Dahasolnce [82]3 years ago

8 0

No, Jonah is not correct. The answer is shown in the picture.

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valentinak56 [21]

Answer:

the correct points would be one unit to the right, thusly, (2,4) (4,-1) (-2,1)

Step-by-step explanation:

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3 years ago

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The price was 448 dollars, went on sale for 398 dollars, what was the discount as a percent and savings in dollars and cents.

Annette [7]

11% discount
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3 years ago

Write the equation. Lucy rides her bike 20 kilometers every week. How many kilometers does Lucy ride her bike in 7 weeks

Irina18 [472]

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Step-by-step explanation:

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3 years ago

A random sample of 45 door-to-door salespersons were asked how long on average they were able to talk to the potential customer.

dimulka [17.4K]

Answer:

b. =8.5+1.96*3/SQRT(45), and =8.5-1.96*3/SQRT(45)

Step-by-step explanation:

Sample size (n) = 45

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A confidence interval is defined by the following expression:

$M\pm z\sqrt{\frac{V}{n} }$

Applying the given data:

$8.5\pm 1.96\sqrt{\frac{9}{45} }\\8.5\pm 1.96\frac{3}{\sqrt 45}$

Writing in Excel statements, the limits of the interval would be

=8.5+1.96*3/SQRT(45), and =8.5-1.96*3/SQRT(45)

Therefore, the answer is alternative b.

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3 years ago

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DiKsa [7]

Answer:

Step-by-step explanation:

3*10=10+5s

30 = 10 + 5s

30-10 = 5s

or, 20/5= s

or, 4 =s

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thank you

6 0

3 years ago