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AleksandrR [38]
3 years ago
15

The area of a compact disc is 78.53 square centimeters. What is the radius of the disc? Use pi = 3.14

Mathematics
1 answer:
Tom [10]3 years ago
5 0

Answer:

r = 5 cm

Step-by-step explanation:

A = πr²

78.53 = (3.14)r²

divide by 3.14

25 = r²

r = ±5

r = 5

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A recycling plant processes an average of 1/3
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Looking the units of measure, we see that the minutes will cancel and the hours will cancel; and we will be left with tons/day.  To determine how many, multiply (1/3) x 60 x 24.  I will leave the calculation to you, but you should get 480.
8 0
3 years ago
What is the answer to this equation<br> 5n^2-14n-3
Sergeeva-Olga [200]

Answer:(5n-1)(n-3)

Step-by-step explanation:

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8 0
3 years ago
Ethan has 18 cartons of yogurt in a fridge, of which 6 were blueberry 3 were strawberry and 9 were orange cream. What is the pro
Ivenika [448]

Answer:

54/324

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5 0
2 years ago
Rhys will tile the rectangle below to find it’s area. Q: How many unit squares with side length 1/10 foot will Rhys use to tile
Inessa [10]

The number of unit squares with a side length  of 1/10 foot that Rhys uses to tile the rectangle is 24 units

<h3>How to calculate the area of plane shapes?</h3>

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A = l^2

Given

side length of a square = 1/10 foot

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Ratio = 0.24/0.01

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Hence the number of unit squares with a side length  of 1/10 foot that Rhys uses to tile the rectangle is 24 units

Learn more on area of plane shapes here: brainly.com/question/2644832

7 0
2 years ago
Read 2 more answers
The alpha level is the set of analysis of the data. Identify the boundaries that separate the extreme samples from the samples t
VikaD [51]

Answer:

Kindly check explanation

Step-by-step explanation:

Given the question :

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When critical region is split across both tails of the distribution.

Then our alpha level is also divided by two and the Zscore of the probability obtained is looked up on the z table.

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Z.025 = ±1.96

6 0
3 years ago
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