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3 years ago

Pls help me and can you give tips on exponents??!

Mathematics

1 answer:

Marina CMI [18]3 years ago

7 0

Answer:

Basically, exponents represent the number of times you multiply that number by itself. For example, 3² = 9, because you multiply 3 times 3.

Step-by-step explanation:

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a certain coin is a circle with a diameter of 18mm what is the exact area of either face of a coin in terms of Pi

denis-greek [22]

Answer:

81 pi

Step-by-step explanation:

formula for area of a circle-pi times radius squared

18/2=9

9 squared 81

answer-81 pi

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4 years ago

Convert the given angle measure from degrees to radians:-36°

Reika [66]

-(36 degrees) =

-0.628318531 radians

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3 years ago

a car wheel has a 14 inches radius. through what angle does the wheel turn when the car rolls forward 2 ft???? ...?

Gelneren [198K]

Arc length = rad * angle2 ft = 14 inch * angle2*12 inch = 14 inch * angleangle = 24/14 inch = 12/7 radiansthis angle is in radianswe need to convert it into degress so for conversion, (12/7)*(180/pi)solve it and u get 1080/11 deg or 98.2 deg

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4 years ago

The sales tax rate is 10%. If Kamal buys a gold ring priced at $391, how much tax will he

aliina [53]

391 x .10 = $39.10 which rounds to $39

4 0

3 years ago

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If a postal worker can deliver the mail to 18 houses in 15 minutes, how many houses will the postal worker be able to deliver to

il63 [147K]

Answer:

72 houses.

Step-by-step explanation:

We are told that a postal worker can deliver the mail to 18 houses in 15 minutes.

Let us find numbers of mails delivered by postal worker per minute.

$\text{Number of mails delivered per minute}=\frac{18\text{ houses}}{15\text{ minutes}}$

$\text{Number of mails delivered per minute}=1.2\frac{\text{ houses}}{\text{ minute}}$

Since we know that 1 hour equals 60 minutes, so we will multiply 1.2 by 60 to find the number mails postal worker will deliver in 1 hour.

$\text{Number of mails delivered in 1 hour}=1.2\frac{\text{ houses}}{\text{ minute}}\times 60\frac{\text{minutes}}{\text{hour}}$

$\text{Number of mails delivered in 1 hour}=1.2\times 60\frac{\text{ houses}}{\text{hour} }$

$\text{Number of mails delivered in 1 hour}=72\frac{\text{ houses}}{\text{hour} }$

Therefore, the postal worker will be able to deliver mails to 72 houses in 1 hour.

4 0

4 years ago

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