Step-by-step explanation:
g(-2)=2(-2)^2 +7(-2) -4
=8 -14 -4
= -10.
j(20)= -5-4(20)
=-5-80
= -85
1) Swim Practice \> Laps, 2) Miles < Kevin Ran, 3) Occupancy < People
Hi
we have 2x-4x-9=29
we add nine on both sides and get 2x-4x=38.
2x-4x=-2x, so we simplify the equation to -2x=38.
divide by -2 on both sides, x=-19
hope this helps
Answer:
(x-5)²+(y-2)²=52
Step-by-step explanation:
first find the midpoint (center of the circle)
(9+1)/2, (-4+8)/2
(5, 2) = center
then distance formula to find diameter
√(9-1)²+(-4-8)²=√64+144 = √208 = 2√52
The radius is half the diameter = √52
Formula for circle is (x-h)²+(y-k)²=r², where (h, k) is the center
Now you can plug everything in.
(x-5)²+(y-2)²=52
First Simplify the numbers we know. Therefore we get: x2=75/3 which is the same as x2=25
Now find the square root of 25, which is 5 or -5. Therefore x=5 or -5
