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3 years ago

A circle is centered at (-3, 2) and has a radius of two. Which of the following is the equation for the circle?

1 answer:

6 0

$\bf \textit{equation of a circle}\\\\ 
(x- h)^2+(y- k)^2= r^2
\qquad 
center~~(\stackrel{-3}{ h},\stackrel{2}{ k})\qquad \qquad 
radius=\stackrel{2}{ r}
\\\\\\\
[x-(-3)]^2+[y-2]^2=2^2\implies (x+3)^2+(y-2)^2=4$

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Solve for h. -18+7h>12+9h

Evgen [1.6K]

Answer:

$h$

Step-by-step explanation:

$-18+7h>12+9h$

Add 18 to both sides:

$-18+7h+18>12+9h+18$

$7h>9h+30$

Subtract 9h from both sides:

$7h>9h+30$

$-2h>30$

Multiply both sides by -1 and flip the symbol:

$\left(-2h\right)\left(-1\right)$

$2h$

Divide both sides by 2:

$\frac{2h}{2}$

$h$

4 0

4 years ago

Going into a recent election, only about 62% of people old enough to vote were registered. In a community of about 55,200 eligib

luda_lava [24]

All we need to do is to divide the number of eligible voters by 62% to find out how many people have been registered:

55200 ÷ 62% =
= 55200 ÷ 62/100 =
= 55200 * 100/62 =
= 5520000 / 62 =
= 89032,25806451613 ≈ (note the rounding to the nearest whole number)
≈ 89032

Doublecheck:

89032 * 62% =
= 89032 * 62/100 =
= 5519984 / 100 =
= 55199,84 ≈ (the difference is because of the rounding before)
≈ 55200

Answer: There were 89,032 people registered.

4 0

3 years ago

Can someone help with these 2 questions? I will mark the person who helped me brainiest

MatroZZZ [7]

Answer:

Surface Area of Triangular Prism=444 m

Surface Area of Square Pyramid= 146 cm

Step-by-step explanation:

Hope this helps.

6 0

3 years ago

How many centigrams are in 6.2 dekagrams?

Svetach [21]

Answer:

<u>6200</u>

Step-by-step explanation:

1 Dekagram = 1000 Centigram

6.2 x 1000 =

3 0

3 years ago

Read 2 more answers

Increase £490 by 11%

Daniel [21]

11% of £490 = 0.11 * 490 = 53.9

answer = 490 + 53.9 = £543.9

7 0

4 years ago