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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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Need math help for this
Burka [1]

Answer:

<h2>In the attachment</h2>

Step-by-step explanation:

The point-slope form of an equation of a line:

y-y_1=m(x-x_1)

m - slope

(x₁, y₁) - point

We have the equation:

y-5=-\dfrac{2}{3}(x+9)\\\\y-5=-\dfrac{2}{3}(x-(-9))

Therefore we have

the slope m = -2/3

and the point (-9, 5)

A slope

m=\dfrac{rise}{run}

rise = -2

run = 3

From the point (-9, 5) ⇒ 2 units down and 3 units to the right.

7 0
3 years ago
In how many ways can you write 32 as the product of three numbers. Write them.​
jekas [21]

32 x 1 x 1

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8 x 2 x 2

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These are the ones that come to my mind

5 0
2 years ago
6. Tony is going to buy a new bike. The bike costs $120.50. If Tony uses a 25% coupon how much will he
Kruka [31]

Answer:

$90.38

Step-by-step explanation:

25% of $120.50 is $30.125

$120.50 - $30.125 = $90.375 rounded to $90.38

6 0
3 years ago
Solve the equation 4m = 28 for m.<br><br> A. 3<br> B. 4<br> C. 5<br> D. 7
Paha777 [63]
D 28/4=7 that is the answer for the question
3 0
3 years ago
Read 2 more answers
F(x) = 3x + 5, g(x) = 6x2 Find (fg)(x).
shepuryov [24]

Answer:

18x² + 5

Step-by-step explanation:

To evaluate f(g(x)), substitute x = g(x) into f(x)

f(g(x))

= f(6x²)

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4 0
3 years ago
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