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3 years ago

Use the circumference of 18.84 to find the radius. Use the radius to find the area of the circle.

Mathematics

1 answer:

lora16 [44]3 years ago

4 0

Answer:

9.42

Step-by-step explanation:

The radius is always half of the circumference. So u would do 18.84 divided by 2.

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Three quarters of the batch of twenty cookies burned when you forgot to take them out of the oven how many cookies burned

Natali5045456 [20]

15 cookies burned because if you Turn $\frac{3}{4}$ into a decimal then multiply it by 20 you get 15 and thats your answer.

7 0

2 years ago

The area A, in square meters, of a rectangle with a perimeter of 60 meters is given by the equation A = 30w − w2, where w is the

Delvig [45]

Answer:

Step-by-step explanation:

The area is given in two ways: 1) as a formula: A = 30w - w^2, and 2) as a specific numerical value: A = 200 m^2.

Equating these, we get:

A = 200 m^2 = A = 30w - w^2

Rewriting this equation in the standard form of a quadratic function:

-30w + w^2 + 200 m^2 = 0

or w^2 - 30w + 200 = 0, which in factored form is (w - 10)(w - 20) = 0.

Then w = 10 and w = 20.

The perimeter of the rectangle is P = 60 m, and this equals 2w + 2l. Therefore, 30 m = w + l, or l = 30 - w.

We have already found that w could be either 10 or 20.

If w = 10, then l = 30 - 10 = 20, and the perimeter would thus be:

P = 2(10) + 2(20) = 20 + 40 = 60.

This satisfies the constraints on w.

The width of the rectangle is 10 meters. The length is 20 meters.

5 0

3 years ago

How many x intercepts appear on the graph of this polynomial function? f(x)=x^4-x^3+x^2-x

elena55 [62]

I believe that the answer is 3 intercepts

7 0

3 years ago

Daniel deposits $300 into an account that earns 16% interest annually. Which equation can be used to model his account balance,

MAVERICK [17]

Answer:

$y=300(1+0.16)^x$

Step-by-step explanation:

<h2>This account can be modeled using the compound interest formula.</h2><h2>the compound interest formula is expressed as</h2>

$A= P(1+r )^t$

Where

A =final amount = y

P=initial principal balance = $300

r=interest rate = 16%= 0.16

t=number of time periods elapsed= x

Hence the equation to model his account balance/ final amount A (y) after time (x) years is

$y=300(1+0.16)^x$

5 0

2 years ago

Find the value of this expression: |-13|. What do I need to do to find the value?

photoshop1234 [79]

Answer:

The value is 13

Step-by-step explanation:

$| p |$ Means absolute value. This means no matter the sign of the number (negative or positive) we are just looking for the value of the number

$|-1|=1\\|1|=1$

Hope this helps:)

4 0

2 years ago