Answer:
centre= (2,-3)
radius=2
equation= (x-2)^2+(y+3)^2= 4
Step-by-step explanation:
equation is found by the co-ordinates and the length of the radius
if the co-ordinates (2,-3)
x=2
y=-3
r= 2
so the equation will be like
=(x-2)^2+(y+3)^2=2^2
=(x-2)^2+(y+3)^2=4
Thankyou ^^
Based on the given table, you can notice that the rate of change of the number of pages read related to the number of hours, is 120 pages each 3 hours.
Then, to determine the number of pages read for 15 hours, consider that after 12 hours Sarah read 480 pages. After 3 more hours, that is, for 15 hours of reading, Sarah read 120 pages more, that is, she read 480+120=600 pages.
Hence, the answer is 600
Answer:
no
Step-by-step explanation:
(x, y)
(-1, 4)
4 < 2(-1) + 5
4 < -2 + 5
4 < 3
not true
It is D if u did the math right
Answer:
A computer costs $225 and a printer $150.
Step-by-step explanation:
Let c be the cost of a computer and p the cost of a printer, then:
3c + p = 825
4c + 2p = 1200
Multiply the first equation by -2:
-6c - 2p = -1650
Add this to the second equation:
-2c = -450
c = 225.
Now substitute c = 225 in the first equation:
3*225 + p = 825
p = 825 - 675 = 150.
