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3 years ago

You buy 30of your favorite songs from a Web site that charges $0.97for each song. What is the cost of 30 songs?

Mathematics

2 answers:

andre [41]3 years ago

5 0

Answer:

i think 29.1

Step-by-step explanation:

ASHA 777 [7]3 years ago

4 0

Answer:

the answer is 29.1

Step-by-step explanation:

do 30 * .97

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HELPP I don’t get this at all. I originally got c but my teacher said it was incorrect. This is about volume and cylinders. Expl

EastWind [94]

Answer:

Step-by-step explanation:

The formula for the volume of a cylinder is $\pi r^2 h$ , where r is the radius of the base and h is the height of the cylinder.

$\pi \cdot 3.25^2 \cdot 10=105.625\pi \text{ cm}^3$

Therefore, the correct answer is choice B. Hope this helps!

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3 years ago

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How much chocolate will each person get if 3 people share a half pound equally?

SIZIF [17.4K]

Each person would get 1/6 of the half pound.

1/2 divided by 3= 1/6

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3 years ago

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Camilla is 14 years old. She is one-third of her teacher's age. How old is her teacher?

Mamont248 [21]

Her teacher would be 42. you would take 14 * 3 and get the teachers age.

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3 years ago

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Apple launches an ad campaign for iPhone 12. Managers want to know what is the % of social media mentions that have positive rea

Orlov [11]

Answer:

social media mentions do managers at Apple need to collect, if they want to get a margin of error of 2%

Sample size 'n' = 625

Step-by-step explanation:

Step(i):-

Given data Apple launches an ad campaign for iPhone 12

Managers want to know what is the % of social media mentions that have positive reactions to the new ad campaign

probability of positive reactions p = 1/2

Probability of negative reactions q = 1-p = 1/2

we know that $\sqrt{p(1-p}\leq \frac{1}{2}$

Step(ii):-

Given margin of error = 2 % =0.02

The margin of error is determined by

$M.E = \frac{\sqrt{p(1-p} }{\sqrt{n} }$

$0.02 = \frac{\frac{1}{2} }{\sqrt{n} }$

$\sqrt{n} =\frac{1}{2 X0.02}$

√n = 25

squaring on both sides, we get

n = 625

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3 years ago

Use function notation to represent the area of a circle whose circumference is 103 cm

Nataly_w [17]

Circumference of the circle $=103$ cm

i.e., $C = 2 \pi r = 103$

i.e., $r = \frac{103}{2 \pi}$

Area of the circle is given by

$A = \pi r^2$

$A = \pi (\frac{103}{2 \pi})^2$

$A = \pi (\frac{10609}{4 \pi^2})$

$A =\frac{10609}{4 \pi}$

Therefore, the area of the circle is: $A =\frac{10609}{4 \pi}$ $cm^2$

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3 years ago

You buy 30of your favorite songs from a Web site that charges ​$0.97for each song. What is the cost of 30 ​songs?

You buy 30of your favorite songs from a Web site that charges $0.97for each song. What is the cost of 30 songs?