2 years ago

10. Barbara puts $22 a week for 30 weeks in her savings account at the bank.

1 answer:

4 0

It would be $636 because 30 times 22 is 660 and since it’s $4 interest for every hundred you do 6 times 4= 24 and 660-24=636.

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scZoUnD [109]

Answer:

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Step-by-step explanation:

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2 years ago

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In a survey of 2957 adults, 1455 say hey have started paying bills online in the least year construct a 99% confidence interval

Vikki [24]

Answer: 0.49 ± 0.0237

Step-by-step explanation: A interval of a 99% confidence interval for the population proportion can be found by:

$p_{hat}$ ± z. $\sqrt{\frac{p_{hat}(1-p_{hat})}{n} }$

$p_{hat}$ is the proportion:

$p_{hat}$ = $\frac{1455}{2957}$

$p_{hat}$ = 0.49

For a 99% confidence interval, z = 2.576:

0.49 ± 2.576. $\sqrt{\frac{0.49(1-0.49)}{2957} }$

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0.49 ± 2.576.(0.0092)

0.49 ± 0.0237

For a <u>99% confidence interval</u>, the proportion will be between 0.4663 and 0.5137 or 0.49 ± 0.0237

7 0

2 years ago

The quadrilateral obtained by joining the mid points of adjacent sides of a square is?

Anit [1.1K]

Answer:

Square

Step-by-step explanation:

the quadrilateral obtained by joining the mid points of adjacent sides of a square is a square

3 0

2 years ago

Use an iterated integral to find the area of the region bounded by the graphs of the equations.

Goryan [66]

Answer:

use photomath and it will solve ur problem

5 0

2 years ago

If the volume of the figure below is 4,069.44ft3 find the missing dimension

olga_2 [115]

Answer:

x = 9 ft

Step-by-step explanation:

The volume of a cylinder is given by

V = pi r^2 h

We know the radius is x

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Divide each side by 16 pi

4069.44 / 16 pi = x^2

Using 3.14 for pi

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Take the square root of each side

sqrt(81) = sqrt(x^2)

x = 9

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3 years ago