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3 years ago

13

What is the standard equation of a circle with center (-2,0) and radius 4?

1 answer:

Fed [463]3 years ago

5 0

Answer:

B(x+2)^2+y^2=16

Step-by-step explanation:

since you have an x-coordinate only and it is negative and a y coordinate which is 0..basically x will appear positive with its conjecture x^2 and the y value will be independent...y^2...bare in Mind that radius is always squared hence it is 16 instead of 4

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The volume of a cone is represented by the formula V = 1 T?n. If the volume of a cone is 30rt and the height is 2.5, what is the

Airida [17]

Answer:

radius is 3.38cm

Step-by-step explanation:

Note: the volume of a cone is given as

$V= 1/3 \pi r^2 h$

Step one:

Given Information

volume= 30cm^3

height= 2.5cm

Required

The radius of the cone

Step two:

substituting our data into the expression for the volume of a cone we can then solve for the radius r

$30=1/3 *3.142*r^2 * 2.5\\\\30=1/3*7.855r^2\\\\30=2.62r^2\\\\$

divide both sides by 2.62

$30/2.62= r^2\\\\11.45= r^2\\\\r=\sqrt{11.45} \\\\r=3.38cm$

7 0

3 years ago

How do I create an equivalent expression that includes parentheses so that the value of the expression is 2 for 3+8-4x2-12

natka813 [3]

(3+8-4)×2-12
3+8=11
11-4=7
7×2=14
14-12=2

5 0

3 years ago

Which expression represents the sum of (2x-5y) and (x+y)?

trasher [3.6K]

(2x-5y) + (x+y)
= (2x+x) + (-5y+y)
= 3x + (-4y)
= 3x-4y
So option A is the correct one.

4 0

3 years ago

Is the function even,odd or neither and how do you know?<br><br> ASAP

wlad13 [49]

Answer:

Odd

Step-by-step explanation:

6 0

3 years ago

Aaron is making jam using strawberries and raspberries. He made 1/2 a jar of strawberry jam. If he made 1/3 as much raspberry ja

nataly862011 [7]

Answer:

2/6 more.

Step-by-step explanation:

You need to find a common denominator. In this case it was 6.

5 0

3 years ago

Read 2 more answers