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3 years ago

HELP ME PLEASE QUICKLY FAST!

Mathematics

2 answers:

RoseWind [281]3 years ago

5 0

The answer is 13. You can find this out by using the PEMDAS method. (Parentheses, Exponents, Multiplication and Division, Addition and Subtraction.)

sukhopar [10]3 years ago

4 0

10/2+4(3-1) goes to 10/2+4(2) then to 10/2+8 then to 5+8 then you get 13 as ur answer!!!

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HELP PLEASE! ONLY 5 MORE MINUTES! Look at the following shape below: Please find the PERIMETER of the following shape using the

Evgen [1.6K]

Answer:

The perimeter is $P=73.12\ cm$

Step-by-step explanation:

we know that

The perimeter of the figure is equal to the circumference of a semicircle

plus the perimeter of a square minus the diameter of the circle

$P=\pi r+4(b)-D$

we have

$r=8\ cm$

$b=16\ cm$

$D=16\ cm$

The diameter of the circle is equal to the length side of the square

substitute

$P=(3.14)(8)+4(16)-16$

$P=25.12+64-16$

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3 years ago

A bicycle tire has a radius of 13 1/4 inches. How far will the bicycle travel in 40 rotations of the tire? Round to the nearest

Sergeu [11.5K]

Answer:

the bicycle will travel 277.5 feet or 3,330.1 inches.

Step-by-step explanation:

the circumference(distance around a tire) is calculated by multiplying a circles diameter by pi. the diameter is twice the length of the radius.

so if you multiply 13 1/4 by 2 you get 26 1.5 if you multiply that by pi than you get the circumference. then multiply this by 40 to get the inches traveled and divide that by 12 to get the number of feet traveled.

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3 years ago

About 70,000 people live in a 6-mile radius of a city's town hall. Find the population density in people per square mile. Round

nika2105 [10]

Answer:

The population density is 618.93 per square mile.

Step-by-step explanation:

It is given that,

No. of people, N = 70,000

The radius of a city's town hall, r = 6 miles

We need to find the population density. It can be calculated by the formula i.e. number of people divided by area of land such that,

$P=\dfrac{N}{A}\\\\P=\dfrac{N}{\pi r^2}\\\\P=\dfrac{70000}{\pi (6)^2}\\\\P=618.93\ \text{per square mile}$

So, the population density is 618.93 per square mile.

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3 years ago

What is the length of EF in the right triangle below?

Goshia [24]

Answer:

Its SQUARE ROOT 217

$\sqrt{217}$

AP3X HOPE THIS HELPS

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2 years ago

Heartbeat takes 0.8 seconds.how many seconds is this written as a fraction?

liubo4ka [24]

0.8 = 8/10

simplified = 4/5 seconds

hope this helps

5 0

3 years ago

Read 2 more answers