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Ainat [17]
2 years ago
10

Find the circumference of a circle with radius 1.4 in. long. Then use the approximation 3.14 for π and approximate the circumfer

ence.
Mathematics
1 answer:
Art [367]2 years ago
7 0
The expression for the circumference of the circle is 2πr, where π is approximately 3.14 and the r is the radius of the circle, 1.4 inches. So the circumference of the circle is 2*1.4*3.14=8.792. So the circumference of the circle is 8.792 inches.
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A group of students is painting the background of a set for a school play what is the area of the part that is painted in gray
GarryVolchara [31]
144 I’m not sure tho
6 0
3 years ago
A cylindrical water tank has a diameter of 5.3 meters and a height of 9 meters. What is the maximum volume that the water tank c
atroni [7]

Answer:

198.56m^{3

Step-by-step explanation:

To find the volume of a cylinder, you need to find the area of the cross-section (one of the circles on the side) and multiply it by the length.

Area of the circle = πr^{2} = π x (5.3/2) x (5.3/2) = π x 2.65 x 2.65 = 7.0225π

Volume of the cylinder = 7.0225π x 9 = 63.2025π = 198.56m^{3

8 0
2 years ago
Can you help me get the answer I’m just not sure if I’m right
zhenek [66]

Answer:

430in^{2}

Step-by-step explanation:

To find the area, use the area for a parallelogram formula:

A = bh, where A is the area, b is the length of the base, and c is the height of the parallelogram.

Next, substitute the values of the base and height:

A = 20in. * 21.5 in.

Finally, simplify the multiplication:

A = 430in^{2}

7 0
2 years ago
Factor Completely: 2x2 − 18
tangare [24]
To factor the given function, find a term that is divisible by both terms. For this problem, the factor would be 2, since 2x^2 and -18 are both divisible by 2.

2(x^2 - 9)

You could further factor out x^2 - 9 because it is factorable by (x - 3) and (x + 3). Thus, it would be

2(x -3)(x+3)


3 0
2 years ago
Read 2 more answers
mrs Moore worked 42 hours and 35 minutes last week. How many hours and minutes did she average in each of the five days?
il63 [147K]

Answer:

6.08333333 hours

Step-by-step explanation:

((42 hours) + (35 minutes)) / 7 = 6.08333333 hours

hope this helps LOL :)

8 0
3 years ago
Read 2 more answers
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