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Igoryamba
3 years ago
10

Marking as brainliest !!!!

Mathematics
1 answer:
stepan [7]3 years ago
8 0

Step-by-step explanation:

The diameter of the circle is 4 inches so its radius r is 2 inches. The area of the circle is

A = \pi r^2 = \pi(2\:\text{in})^2 = 12.57\:\text{in}^2

The circumference C of the circle is

C = 2\pi r = 2\pi(2\:\text{in}) = 12.57\:\text{in}

You might be interested in
If my last paycheck way $107.78 and I work for 3 and a half hours a day for 5 days, how much do I make an hour?
Tresset [83]

Answer:

$6.16

Step-by-step explanation:

Total amount paid = $107.78

Total time worked = 3 and half hours for 5 days

                              =3\dfrac{1}{2}\cdot 5\\ \\=\dfrac{7}{2}\cdot 5\\ \\=\dfrac{35}{2} \ hours

Amount earned per hour

                              =\$107.78:\dfrac{35}{2}\\ \\=\$107.78\cdot \dfrac{2}{35}\\ \\\approx \$6.16

5 0
3 years ago
When adding 3 and -9, how do you know that the sum is negative?
irga5000 [103]
You know the sum is negative because the negative integer is larger than the positive integer.
7 0
3 years ago
Help ? showing how you got the answer would be absolutely awesome. thank you !
Sergeeva-Olga [200]

Answer:

62: 300l/hr

63: .018mi/s

64: .46qt/s

65: 298.2mi/hr

Step-by-step explanation:

62: 5x60=300

63: 68/60=1.13/60=.018

64:7gal=28qt 28/60=.467

65: 8km=4.97mi 4.97x60=298.2

5 0
3 years ago
A pyramid has a square base that measures 20 inches on each side and 30 inches high. Find the volume of the pyramid.
irinina [24]

The volume of pyramid is 4000 inch³.

<h3>What is Volume?</h3>

Volume is a mathematical term that describes how much three-dimensional space an object or closed surface occupies. Volume is measured in cubic units like m³, cm³, in³, etc. Volume is sometimes referred to as capacity.

The capacity of an object is measured by its volume. For instance, a cup's capacity is stated to be 100 ml if it can hold 100 ml of water in its brim. The quantity of space occupied by a three-dimensional object can also be used to describe volume.

Given:

base = 20 inches

height = 30 inches

Now, volume of pyramid

Volume = a²h/3

Volume = 20 x 20 x 30 /3

Volume = 400 x 10

Volume = 4000 inch³

Hence, the volume of pyramid is 4000 inch³.

Learn more about volume of pyramid here:

brainly.com/question/1578538

#SPJ1

7 0
2 years ago
Is this right? Please check and tell me the answer fast
Goryan [66]
Yes it is correct, I've done the maths myself as wlel
7 0
4 years ago
Read 2 more answers
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