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3 years ago

6

Find the circumference of a circle whose area is 60 pi cm 2 /. A2 square root15 pi cm B.4 C.30 D.900 Please select the best answ

er from the choices provided A B C D

1 answer:

krok68 [10]3 years ago

6 0

Answer:

i think its 48.66cm

Step-by-step explanation:

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What is the volume of this sphere? Use a 3.14 and round your answer to the nearest hundredth. 7 m

kondor19780726 [428]

Answer:

V≈1436.76

Step-by-step explanation:

V=4/3 $\pi r^{3}$

V= 4/3 3.14* $7^{3}$

V=1436.75504

Rounded answer is 1436.76

8 0

3 years ago

Read 2 more answers

Eva is a kickboxing instructor who will be teaching classes at a local gym. To get certified as an instructor, she spent a total

zlopas [31]

Answer:57+51+3

Step-by-step explanation: use https://www.cymath.com/

6 0

3 years ago

Somebody please help me with this !!!

Damm [24]

Step-by-step explanation:

Case 1 :

$3x + 2y = 6 \\ 4x + y = 2 \\ 3x = 6 - 2y \\ x = \frac{6 - 2y}{3} = \\ x = 2 - \frac{2y}{3} \\ 4(2 - \frac{2y}{3} ) + y = 2 \\ 8 - \frac{8y}{3} + y = 2 \\ - 1.67y = - 6 \\$

$y = 3.59 \\ x = 2 - \frac{2y}{3} \\x = 2 - \frac{2 \times 3.59}{3} \\ \\ x = - 0.39$

Case 2 :

$3x + 2y = 6 \\ 4x - y = 2 \\ x = 2 - \frac{2y}{3} \\ 4(2 - \frac{2y}{3} ) - y = 2 \\ 8 - \frac{8y}{3} - y = 2 \\ - 3.67y= - 6 \\ y = 1.63$

$x = 2 - \frac{2y}{3} \\ x = 2 - \frac{2 \times 1.63}{3} \\ x = 2 - 1.087 \\ x = 0.913$

7 0

3 years ago

A person who is 3 m tall casts a shadow that is 6 m long. At the same time, a building

podryga [215]

Answer:

13.5 meters

Step-by-step explanation:

25 / 2 = 13.5

because if a human is 3 meters tall and cast 2 times the length of himself then if a building casts 25 meters then it should be 2 times less than its shadow.

6 0

2 years ago

Charlie runs a book rental business. He currently charges $3 per book and rents out an average of 38 books a day. According to a

Degger [83]

Answer:

The equation that models this scenario $b(x)=(3+0.5x)(38-4x)$

Step-by-step explanation:

First we convert 50 cent into dollar,

1 cent = $\frac{1}{100}$ dollar

1 cent = 0.01 dollar

50 cent = 0.5 dollar

According to question,

x is the number of 50¢=$0.5 price increases.

b(x) is the revenue generated

He currently charges $3 per book.

i.e. price of book = 3+0.5x

Quantity or average = 38 per day

According to a study, for every 50¢ increase in rental price, the average business can expect to lose 4 rentals a day.

i.e. quantity became 38-4x

Revenue = Price × Quantity

The required equation is given by,

$b(x)=(3+0.5x)(38-4x)$

8 0

3 years ago