All categories

3 years ago

What is the radius of the circle ? (X-3^2+(y-4)^2=49

Mathematics

1 answer:

vodomira [7]3 years ago

5 0

Answer:

7 units

Step-by-step explanation:

The formula for a circle is: $(x-x_1)^2+(y-y_1)^2=r^2$ , where (x_1, y_1) is the center of the circle and r is the radius.

Right now, we see that r^2 = 49, so to find r, we square root 49 and get 7.

Thus, the answer is 7 units.

Hope this helps!

You might be interested in

If v = 35 , a = 4 , t = 5 and v = u + a t , evaluate u .

Llana [10]

v = u + at

=> 35 = u + (4×5)

=> 35 = u + 20

=> 35 - 20 = u

=> 15 = u

4 0

3 years ago

Read 2 more answers

Karl has $400 in a savings account. The interest rate is 10%, compounded annually. Which type of model best fits this situation?

n200080 [17]

Answer:

He prolly only got like 300 some left

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers

HELP! IS THIS PROPORTIONAL

MAXImum [283]

Answer:

Yes

Step-by-step explanation:

3 0

2 years ago

Y= - x+2 Y=3x-4<br> Estimate the solution to the system of equations

IrinaVladis [17]

Answer:

$x=\frac{3}{2}\\ y=\frac{1}{2}$

Step-by-step explanation:

$y=-x+2\\y=3x-4$

Let's solve one of them for x.

$y=3x-4$

Add 4

$y+4=3x$

Divide by 3.

$x=\frac{y+4}{3}$

Now, plug the value of y in the formula, or you can plug the value of x in the other equation. I'll take this one.

$x=\frac{y+4}{3}$

$x=\frac{(-x+2)+4}{3}$

$x=\frac{-x+2+4}{3}$

$x=\frac{-x+6}{3}$

Multiply by 3 to get rid of the denominator.

$3x=-x+6$

add x

$3x+x=6$

Combine like terms;

$4x=6$

Divide by 4.

$x=\frac{6}{4}$

Simplify.

$x=\frac{3}{2}$

Now that you found the value of x, replace it in any of the equations to find y.

$y=-x+2\\y=-(\frac{3}{2})+2\\ y=-\frac{3}{2}+2$

$y=\frac{-3+2*2}{2} \\y=\frac{-3+4}{2} \\y=\frac{1}{2}$

Proof:

$y=3x-4\\\frac{1}{2}=3(\frac{3}{2})-4\\\frac{1}{2}=(\frac{9}{2})-4$

$\frac{1}{2}=\frac{9-4*2}{2}$

$\frac{1}{2}=\frac{9-8}{2}$

$\frac{1}{2}=\frac{1}{2}$

8 0

3 years ago

64/100 as a simplified fraction

spin [16.1K]

64/100
= (64/4) / (100/4)
= 16/25

The final answer is 16/25~

6 0

2 years ago

Read 2 more answers