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ololo11 [35]
4 years ago
10

A circle has center (5. --4) and radius 8. Which gives the equation for the circle?

Mathematics
1 answer:
Tju [1.3M]4 years ago
4 0

Answer:

(x-5)^2 + (y+4)^2 =64

Step-by-step explanation:

We can write the equation of a circle as

(x-h)^2 + (y-k)^2 = r^2

where (h,k) is the center and r is the radius

(x-5)^2 + (y- -4)^2 = 8^2

(x-5)^2 + (y+4)^2 =64

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I need help someone did this question but every time I go to look at it again it kicks me off..
aleksandr82 [10.1K]

We will have the following:

A. The function is compressed in the y-axis by a factor of 0.5 and then it is inverted in its direction; since it is a line the line is then decreasing instead of increasing.

B. The function is increased by a factor of 2 in the y-axis and then it is moved 3 units up:

C. The function is increased by a factor of 5/3 (Approximately 1.67) in the y-axis and then it is made so it is no longer increasing, but decreasing:

D. The function is increased in the y-axis by a factor of 9 and then it is moved 9 units down:

8 0
2 years ago
Find the compound interest and final amount $950 for 2 years at 7½ per annum​
wlad13 [49]

Answer:

1092.50 account value

142.50 interest

Step-by-step explanation:

to solve compound interest questions we use the formula A=P(1+rt) where P is the principal (initial investment) r is the rate or the return (7.5%) and t is the interval or time so 2 years

now putting it together we get A=950(1+ (7.5x2)) = 1092.50 $

the interest is this value A minus the initial investmetn so 1092.50 - 950 = 142.50$

6 0
3 years ago
What is the midpoint of the segment shown below?
Aneli [31]

Answer:

(1, -3/2)

Step-by-step explanation:

The x coordinate is the same for both endpoints so the x coordinate for the midpoint is 1

The y coordinate for the midpoint is found by adding the two y coordinates and dividing by 2

(2+-5)/2 = -3/2

The midpoint is

(1, -3/2)

5 0
4 years ago
Read 2 more answers
For the next six month period Sammy wants to calculate the monthly deviation from the average.
jek_recluse [69]

Answer:

Deviation:

July ----- 289.17

August ----- 339.17

September ----- 14800.17

October ----- -65.83

November ----- 10690.17

December ----- -480.83


3 0
3 years ago
Read 2 more answers
The work of a student to solve a set of equations is shown:
seraphim [82]

Answer:

In step 3

4m = 4 + 4n

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If you add -4m, 4m you end up with

-4m+4m=-32 -8n + 4n +4

In step 3. the 4 was not added

continuing to solve 4n=-28, n=-7

5 0
3 years ago
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