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snow_tiger [21]
2 years ago
8

Please someone help its a test

Mathematics
1 answer:
tino4ka555 [31]2 years ago
3 0

Answer:

just choose E if you dont get it

Step-by-step explanation:

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Find the volume in the cylinder in terms of π (pi) and to the nearest tenth .
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Answer:

157 in(3)

Step-by-step explanation:

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Please factorise the equations in the doc bellow ASAP. please show full working
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Answer:

b. x² + 8x + 12 =

1. use the factoring X (see attachment)

2. 6 x 2 = 12; 6 + 2 = 12

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3. x = -12, -1

c. x² + x - 12 =

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8 0
3 years ago
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A city bus collected $780 in fares on one day.
Brilliant_brown [7]

Answer:

450 people paid the discounted fare and 750 people paid the regular fare.

Step-by-step explanation:

let r be regular fares paid and d be discounted fares paid

Total fares = 0.8r + 0.4d = 780

Since 1200 people paid the fares,

r + d = 1200 = Total people

Rearrange this formula:

r = 1200 - d

Substitute r into Total Fares formula

Total fares = 0.8r + 0.4d

780 = 0.8(1200-d) + 0.4d

780 = 960 - 0.8d + 0.4d

780 = 960 - 0.4d

0.4d = 180

d = 450

Sub d=450 into Total people formula

r + d = 1200 = Total people

r + 450 = 1200

r = 1200-450

r = 750

450 people paid the discounted fare and 750 people paid the regular fare.

3 0
3 years ago
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Mr. Santiago has a flight from New York to Paris that covers a distance of 3640 miles in 7 hours. If the plane travels at the sa
pentagon [3]
He traveled 2080 miles after 4 hours. He covered 3640 miles in 7 hours with a constant speed, so we can calculate the speed: 3640/7=520 miles/hour. After 4 hours, he traveled 520*4=2080 miles.
6 0
3 years ago
A school needs to buy new notebook and desktop computers for its computer lab. The notebook computers cost $225 each, and the de
almond37 [142]

Answer:

n=19

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4275+3000

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Step-by-step explanation:

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