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3 years ago

How do you find the area of a circle

Mathematics

2 answers:

marissa [1.9K]3 years ago

6 0

Answer:

πr²

Step-by-step explanation:

(pi times radius of circle)²

KIM [24]3 years ago

3 0

An approximate method:
Take the diameter, divide it by 9. Subtract this number from the original diameter. Square the result.

(d - d/9)^2 = A

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Mathematical induction

jenyasd209 [6]

Answer:

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7 0

3 years ago

For breakfast perry adds 1/8 cups of berries to his oatmeal.He has 7/8 cup of berries in his fridge.How many days can he have br

prisoha [69]

Answer:

He has 7 days

Step-by-step explanation:

He consumes 1/8 cups of berries per day, 1/8=1 day

He has 7/8 cups of berries

To get the number of days it takes for 7/8 cups

Number of days=(Number of cups of berries he has)/(The number of berries he consumes in a day)

(7/8)÷(1/8)=(7/8)×8=7 days

4 0

3 years ago

What is the initial velocity of the boiling water? H=-16t^2+170t

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5 0

3 years ago

Find the area and the circumference of the circle. Round your answers to the nearest hundredth. PLEASE SHOW WORK

larisa [96]

27/2=13.5(radius)

area: pi*r*r=

pi*13.5*13.5=

572.55526

rounded, 572.56

circumference: 2*pi*r(which is basically diameter times pi)

27pi=84.823

rounded, 84.82

8 0

3 years ago

The formula A equals =P left parenthesis 1 plus r right parenthesis squared (1+r)2 gives the amount A in dollars that P dollars

vlabodo [156]

The interest rate is 3.5%.

EXPLANATION

We substitute the given values into the formula;

$A=P(1+\frac{r}{100})^t$

to obtain

$6427.35=6000(1+\frac{r}{100})^2$

We divide through by 6000 to obtain,

$\frac{6427.35}{6000}=(1+\frac{r}{100})^2$

This implies that,

$1.071225=(1+\frac{r}{100})^2$

We take the square root of both sides,

$\sqrt{1.071225}=(1+\frac{r}{100})$

This gives us,

$1.035=(1+\frac{r}{100})$

Add -1 to both sides of the equation to obtain

$0.035=\frac{r}{100}$

Multiply through by 100 to obtain;

$r=3.5$ %

$Therefore the rate is 3.5%$

3 0

3 years ago