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NARA [144]
3 years ago
8

Find the area of a circle with the diameter of 3 centimeters. Use 3.14 for pi ().

Mathematics
1 answer:
wlad13 [49]3 years ago
3 0

Answer:

7.065 sq. cm

Step-by-step explanation:

Diameter= 3 cm

Since 2r=d, the radius is 1.5 cm

Circle area formula:

πr^2 --> 3.14(r^2)

Plug in r:

A=3.14(1.5^2)

A=3.14(2.25)

A=7.065

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A hat contains slips of paper with the names of the 26 other students in Eduardo’s class on them, 10 of whom are boys. To determ
Yuki888 [10]

Answer:

The probability that both of Eduardo’s partners for the group project will be girls is        

Step-by-step explanation:

Given : A hat contains slips of paper with the names of the 26 other students in Eduardo’s class on them, 10 of whom are boys. To determine his partners for the group project, Eduardo has to pull two names out of the hat without replacing them.

To find :  What is the probability that both of Eduardo’s partners for the group project will be girls?

Solution :

Total number of students = 26

Number of boys = 10

Number of girls = 26-10=16

Eduardo has to pull two names out of the hat without replacing them.

For the first hat,

Favorable outcome of getting girl = 16

Total number of outcome = 26

For the second hat, without replacement

Favorable outcome of getting another girl = 15

Total number of outcome = 25

The probability that both of Eduardo’s partners for the group project will be girls is

Hope This Helps :D

5 0
3 years ago
Read 2 more answers
The sum of the angles x and y are 127 degrees. If the measure of x is 34 more than half the measure of y, what is the measure of
Pepsi [2]
The sum of the angles x and y are 127 degrees.
X + Y = 127

The measure of x is 34 more than half the y.
X = (y/2) + 34
X = (y + 68) / 2

X = 127 - Y

(Y + 68)/2 = 127-Y
254-2Y = Y+68
186 = 3Y
Y = 62
X = 127-62 = 65

The measure of two angles are 62 and 65
8 0
3 years ago
A bell pepper has 3 grams of sugar per serving. An apple has 18 grams of sugar per serving. Which statement is true? A. For an e
frozen [14]
They would have the same serving size A would be correct because you take 18/ 6 and get 3 right. so that would mean that For an equal number of servings, the apples will have six times as much sugar as the pepper would. 6x3=18 so choice number 1 is the answer
8 0
4 years ago
Find the value of x if the arithmetic mean of 3 and 3x+5 is 8?
mina [271]

Answer:

1

Step-by-step explanation:

3x+5=8

Group like terms

3x=8-5

3x=3

Divide both side by the co-efficient of x which is 3

3x/3=3/3

x=1

8 0
3 years ago
What is the surface area of the cube?<br><br><br> cube with edge length = 4.5 m
Zarrin [17]
Surface are of a cube = 6a^2

surface area
= 6 (4.5)^2
= 6 x 81 /4
= 243/2
= 121.5
7 0
3 years ago
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