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Romashka [77]
3 years ago
13

What’s is the radius of a circle with a area of 3.21 square feet

Mathematics
1 answer:
Rus_ich [418]3 years ago
7 0

approx 1 foot

The area (A) of a circle = πr² ( where r is the radius)

thus r² = A/π ⇒ r = √(A/π = √(3.21/π) =1.0108..... ≈ 1 foot ( to 1 dec. place)

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8 0
3 years ago
What is the equation of the line of best fit for the following data? Round the
podryga [215]

Answer:

The answer is A.

Step-by-step explanation:

6 0
2 years ago
By what percentage did the high temperature increase from friday to saturday ? round ur answer
monitta

Answer:

Step-by-step explanation:

First, you must find the actual decrease in temperature.

Decrease = Yesterday's temperature - Today's temperature

Decrease = 80 - 75

Decrease = 5 degrees

Now, find the percentage decrease.

% Decrease = Actual decrease / Yesterday's temperature x 100

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% Decrease = 6.25 %

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3 0
2 years ago
A car wash detailed 256 cars in 8 hours. At what rate did the car wash detail
Minchanka [31]
32 cars per hour. If you do 256 divided by 8 you get 32.

Hope this helped!
4 0
3 years ago
If x, y, and z are integers greater than 1, and (327)(510)(z) = (58)(914)(xy), then what is the value of x? (1) y is prime (2) x
Virty [35]

Answer:

1) 5

2) 5

Step-by-step explanation:

Data provided in the question:

(3²⁷)(5¹⁰)(z) = (5⁸)(9¹⁴)(x^y)

Now,

on simplifying the above equation

⇒ (3²⁷)(5¹⁰)(z) = (5⁸)((3²)¹⁴)(x^y)

or

⇒  (3²⁷)(5¹⁰)(z) = (5⁸)(3²⁸)(x^y)

or

⇒ (\frac{3^{27}}{3^{28}})(\frac{5^{10}}{5^8})z=x^y

or

⇒(\frac{5^2}{3})z=x^y

or

⇒\frac{5^2}{3}=\frac{x^y}{z}

we can say

x = 5, y = 2 and, z = 3

Now,

(1) y is prime

since, 2 is a prime number,

we can have

x = 5

2) x is prime

since 5 is also a prime number

therefore,

x = 5

8 0
2 years ago
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