Answer:
5 x 10^10
Step-by-step explanation:
Answer:
B I'm pretty sure
Step-by-step explanation:
Ok so
parabola standard form is
y=ax^2+bx+c
if you have the points
(-2,18)
(0,4)
(4,24)
sub points to find a,b and c
(-2,18)
sub -2 for x and sub 18 for y
18=a(-2)^2+b(-2)+c
18=4a-2b+c
(0,4)
sub 0 for x, nice a, an b cancel
4=a(0)^2+b(0)+c
4=0+0+c
4=c
we can sub that back later
(4,24)
24=a(4)^2+b(4)+c
24=16a+4b+c
we have
18=4a-2b+c
c=4
24=16a+4b+c
sub 4 for c
18=4a-2b+4
24=16a+4b+4
minus 4 from both sides
14=4a-2b
20=16a+4b
simlify all equations
7=2a-b
5=4a+b
add to solve for 6a
12=6a+0b
12=6a
divide both sides by 6
2=a
sub back
7=2a-b
7=2(2)-b
7=4-b
-3=b
equation is
y=2x^2-3x+4
The rate of water level change per hour is 1.5 inches per hour. You can find it out easily by dividing the total time by the total level change. Hope this Helps:)
Answer:
Area for rectangle = B*H
Area for triangle = B*H/2
total area = area of triangle + area of rectangle
A of rectangle = 17 * 22 = 374 cm²
Triangle height is not giving so we take 22-10 = 12 cm for the height so
A of triangle = 12*19/2 = 114 cm²
total A = 114 + 374 = 488 cm²
Step-by-step explanation:
