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Vilka [71]
3 years ago
8

10 POINTS! PLEASE HELP!! The illustration shows a compact disc tray that holds five CDs. The radius of each compact disc is 9 cm

.
What is the total area occupied by all five discs?

Mathematics
1 answer:
MariettaO [177]3 years ago
3 0

We can see that there are 5 CDs, each of radius 9 cm

<u>Area occupied by 1 disc:</u>

Area of a circle = πr²

Area of disc = π(9)²

Area of disc = 3.14 * 81 = 254 cm²

<u>Area occupied by 5 discs:</u>

Area occupied by 5 discs = Area occupied by 1 disc * 5

Area occupied by 5 discs = 254 * 5

Area occupied by 5 discs = 1270 cm²

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mars1129 [50]
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8 0
2 years ago
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What is the shape of this distribution?
PolarNik [594]

Answer:

A

Step-by-step explanation:

It is not E because it is not symmetric. It is not uniform because that is a rectangular looking distributiom. (not D)

It is not C or B because it is not unimodal. Unimodal means there is one mode (or one column that is the highest) I beleieve this one is A because it has to modes at 1 and 10

8 0
3 years ago
Find a average daily rainfall for a 30 days month if the total rainfall during that period was 16.8 inches.
max2010maxim [7]

Average = 0.56 inches

Solution:

Given data: Total rainfall = 16.8 inches

Total number of days for a month = 30

To find the average of the rainfall.

Formula for average:

\text {Average}=\frac{\text {Sum of the observations}}{\text {Total number of observations}}

\text {Average}=\frac{16.8}{30}

            = 0.56 inches

Average = 0.56 inches

Hence, average of daily rainfall is 0.56 inches.

8 0
4 years ago
Raymond is making stir-fry rice for dinner. The recipe says to add 3/4 tablespoon of ground ginger, but he only has a 1/8 tables
densk [106]

Answer:

6

Step-by-step explanation:

3/4 = 6/8.

6/8 divided by 1/8 = 6

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4 0
3 years ago
Mara's family is driving to her grandmothers' house. The family travels 239.4 miles between the hours of 9:10 a.M. To 1:40 p.M.
anzhelika [568]

Answer:

53.2 mph

Step-by-step explanation:

Mara's family travels 239.4 miles between the hours of 9:10 a.m. to 1:40 p.m.

1:40 p.m. is 13:40.

Thus, they traveled for

13 hours 40 minutes - 9 hours 10 minutes = 4 hours 30 minutes

that is 4\frac{1}{2}=4.5 hours.

Use formula:

D=r\cdot t,

where

D = distance

r = rate

t = time.

In your case,

D = 239.4 miles

t = 4.5 hours

Hence,

239.4=4.5r\\ \\r=\dfrac{239.4}{4.5}=53.2\ mph

5 0
3 years ago
Read 2 more answers
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