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3 years ago

Which is the equation of a circle with center (-2, 3) and radius r = 5?

Mathematics

1 answer:

Arisa [49]3 years ago

5 0

Answer:

(x+2) ^2 + (y-3)^2 = 25

Step-by-step explanation:

The equation of a circle is given by

(x-h) ^2 + (y-k)^2 = r^2 where (h,k) is the center and r is the radius

(x--2) ^2 + (y-3)^2 = 5^2

(x+2) ^2 + (y-3)^2 = 25

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Find the area of a circle with a circumference of units.

Diano4ka-milaya [45]

This is the formula for circumference of circle

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2 years ago

Solve for [x]. The pair of polygons are similar. The scale factor from A to B is 9:10

brilliants [131]

Answer:

Step-by-step explanation:

if scale factor is 3/5, then

(x+12):35=3:5, ⇒

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3 years ago

A bathtub fills at a constant rate. The amount of water in the tub increases by 1/2 gallon every 1/10 minute. What is the unit r

Oxana [17]

Do 1/2 x 1/10 which equals 10/2. 10/2 is 5 gallons if u divide 10 divided by 2. So the unit rate is 5 gallons per minute.
Also can u mark me as brainlist

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3 years ago

What are the right choices

MA_775_DIABLO [31]

Answer:

(0.1,1.1)

Step-by-step explanation:

we have

$f(x)=3^{x}$

$g(x)=-log(x)$

Solve the system of equations by graphing

The solution is the intersection point both graphs

The solution is the point (0.081,1.093)

see the attached figure

Round to the nearest tenth ----> (0.1,1.1)

6 0

3 years ago

I’ll give someone brainliest if they answer this

Dimas [21]

Answer:

2. The answer should be the last one.

3. The answer should be the first three.

Step-by-step explanation:

Question 2

KE = (1/2)mv²

2KE = mv²

v² = 2KE/m

v = ±√(2KE/m)

Therefore the answer should be the last one.

Question 3

b^(1/2) * b^(5/2)

Remember that the product rule states that b^x * b^y = b^(x+y)

So this means b^(1/2) * b^(5/2) = b^(1/2+5/2) = b^(6/2) = b^3

Also remember that the power rule states that √b = b^(1/2)

so this means b^(6/2) can also be written as (√b)^6

Therefore the answer should be the first three.

If you want to double check all of your answers, just replace b with a number (for example, 2), and plug all of the choices into the calculator. Just make sure you are very careful when typing into the calculator.

3 0

3 years ago