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2 years ago

Consider this function:

Mathematics

1 answer:

Digiron [165]2 years ago

3 0

Answer:

this is why im failing math

Step-by-step explanation:

yes

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In ancient egypt, a scribe equated the area of a circle with a diameter of 9 units to the area of a square with a side length of

Rudik [331]

Answer:

$\pi =3.160494$

Step-by-step explanation:

step 1

Find the area of the circle with a diameter of 9 units

we know that

The area of a circle is equal to

$A=\pi r^{2}$

we have

$r=9/2=4.5\ units$ ----> the radius is half the diameter

substitute

$A=\pi (4.5)^{2}$

$A=20.25\pi\ units^2$

step 2

Find the area of a square with a side length of 8 units

we know that

The area of the square is

$A=b^2$

where

b is the length side of the square

we have

$b=8\ units$

substitute

$A=(8)^2=64\ units^2$

step 3

Equate the areas

$20.25\pi=64$

solve for $\pi$

$\pi =\frac{64}{20.25}=3.160494$

5 0

3 years ago

the price of the coat was $160. the Price increased by 25%. A month later josie bought the coat at a 25% discount sale. How much

ElenaW [278]

Answer:

160

Step-by-step explanation:

if the price increased by 25% and then decreased by the same amount you pay the original amount from the beginning

5 0

3 years ago

\Suppose that a person has an average heart rate of 88.6 beats/min. (Express your answers to problems in this section to the cor

vaieri [72.5K]

Answer:

He or she has 232,840,800 beats in five minutes.

Step-by-step explanation:

This question is solved by proportions.

In this question:

A year has 365 days.

Each day has 24 hours.

Each hour has 60 minutes.

Minutes in five years:

5*365*24*60 = 2,628,000 minutes.

How many beats in five minutes?

88.6 beats/min, 2,628,000 minutes. So the number of bears is:

88.6*2628000 = 232,840,800

He or she has 232,840,800 beats in five minutes.

8 0

2 years ago

5x+y=27 y=4x using substitution method

Dvinal [7]

5x + y = 27
substitute: 5x + 4x = 27
combine: 9x = 27
divide (by 9): x = 3

4 0

3 years ago

Read 2 more answers

Is negative 2 n 13/16 greater, or less than or equal to negative 2 11/14???

Kazeer [188]

$-2 \frac{13}{16} \ \textless \ -2\frac{11}{14}$

8 0

3 years ago