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vladimir2022 [97]
2 years ago
12

Find the equation for the circle with center (-2,4) and passing through (-1,- 4).

Mathematics
1 answer:
LuckyWell [14K]2 years ago
8 0

Answer:

(x+2)^2 + (y-4)^2 = 65

Step-by-step explanation:

r^2 = (4-(-4))^2 + (-1-(-2))^2 = 65

center = (-2, 4) so you add 2 to x and subtract 4 from y

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(9, 8) is the midpoint of mc136-1.jpg. The coordinates of S are (10, 10). What are the coordinates of R?
kolbaska11 [484]
I cant see the image...but I take it that the midpoint is (9,8) and the endpoint S is (10,10) and ur looking for the other endpoint R.

midpoint formula : (x1 + x2) / 2, (y1 + y2) / 2
(10,10)....x1 = 10 and y1 = 10
(x,y)....x2 = x and y2 = y
so we sub
(10 + x) / 2, (10 + y) / 2 = 9/8

(10 + x) / 2 = 9
10 + x = 9 * 2
10 + x = 18
x = 18 - 10
x = 8

(10 + y) / 2 = 8
10 + y = 8 * 2
10 + y = 16
y = 16 - 10
y = 6

so endpoint R has coordinates of (8,6) <===
7 0
3 years ago
What is the answer to y=15x + 25
Travka [436]

Answer:x=(y-25)/15

Step-by-step explanation:

8 0
3 years ago
Are the graphs of the lines in the pair parallel? Explain. y = 4x – 4 24x – 4y = 96
zaharov [31]
No, since the slopes are different

for 1 line
y = 4x - 4

slope = 4

for 2 line
4y = 24x - 96
slope = 24/4 = 6
6 0
3 years ago
Read 2 more answers
A low calorie dinner has 480 calories in an 9 ounce serving. What is the unit rate in simplest form? 9/48 160/3 48/9 3/160
LenaWriter [7]

Answer:Hi, the correct answer is \frac{160}{3}.

Step-by-step explanation:

 As you are being asked for rate and the importat value is the number of calories consumed. We need to simplify the fraction \frac{480 calories}{9 ounce} . Then we simplify.

Note that 480 is divisible by 3 and 9 as well. 480/3 = 160 and 9/3 = 3. Therefore, 480/9 = 160/3.

8 0
3 years ago
Explain how you would solve 25- 6R when R = 3. Make sure to explain each step.
aliina [53]
Fist you need to substitute the value of R into the equation

25-6(3)

Now you simply
First multiple 6(3)

25-6(3)
25-18

Now solve!
25-18
7

The answer is 7
4 0
3 years ago
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