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vlada-n [284]
2 years ago
13

A circle has a diameter of 4 in. What is the Radius and Circumference

Mathematics
2 answers:
meriva2 years ago
6 0

Answer:

C = 12.56 inches

Step-by-step explanation:

Digiron [165]2 years ago
3 0

Answer:

see below

Step-by-step explanation:

The radius is 1/2 of the diameter

r = 1/2 d

r = 1/2(4) = 2 inches

The circumference is given by

C = 2 * pi * r

C = 2 * pi * 2

C = 4 pi inches

Using 3.14 as an approximation for pi

C = 12.56 inches

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What is the answer?
taurus [48]

x^2y^3(1-x^3y)

This is because you can at most, factor out x² and y³

5 0
3 years ago
An arhitect wants to draw a rectangle with a diagonal of 20 inches. The length of the rectangle is to be 8 inches more than twic
kiruha [24]

The diagonal of a rectangle = sqrt(w^2 + l^2)

w = width

l = length

In this problem,

The diagonal = 20 in

w = x

l = 2x + 8

Let's plug our numbers into the formula above.

20in = sqrt((x)^2 + (2x + 8)^2)

Let's simplify the inside of the sqrt

20 in = sqrt(5x^2 + 32x + 64)

Now, let's square both sides.

400 = 5x^2 + 32x + 64

Subtract 400 from both sides.

0 = 5x^2 + 32x - 336

Factor

0 = (5x - 28)(x + 12)

Set both terms equal to zero and solve.

x + 12 = 0

Subtract 12 from both sides.

x = -12

5x - 28 = 0

Add 28 to both sides.

5x = 28

Divide both sides by 5

x = 28/5

The width cant be a negative number so now we know that the only real solution is 28/5

Let's plug 28/5 into our length equation.

Length = 2(28/5) + 8 = 56/5 + 8 = 96/5

In conclusion,

Length = 96/5 inches

Width = 28/5

4 0
3 years ago
WILL MARK BRAINLIEST TO QUICKEST ANSWER! PLEASE HURRY
Evgesh-ka [11]
There seems to be a flaw with this question because it says that there are five x-intercepts but the given information only gives you 4 x-intercepts to work with.

Even means the graph is symmetric about the y-axis

The best answer is <span>A.(–6, 0), (–2, 0), and (0, 0)

because you do not have to worry about another point (0,0). Plus we need (-6,0) for it to be symmetric with (6,0).

Consider function f(x) = x²(x-6)(x+6)(x+2)</span>²(x-2)<span>². It is even and fits these conditions as it has x-intercepts at (6,0), (-6,0), (-2,0), (2,0), and (0,0). again, the question does not tell us the fifth x-intercept, so we need to assume that there is another one that needs to be there...and so (-2,0) must have (2,0) for it to be even as well.</span>
4 0
2 years ago
Read 2 more answers
HEEELP
Margarita [4]
6 three point shots were made
8 0
3 years ago
Malcom has 125 feet of yarn to make it 100 bracelets. He uses the same amount of yarnto make each bracelet. Write an expression
lana66690 [7]

x=125/100


Divide the yarn by the bracelet number, and that's the answer I believe. Hope that helps

3 0
3 years ago
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