Answer:
Step-by-step explanation:
y=-1/2(x+10)^2+14
2y=-(x+10)^2+28
(x+10)^2=28-2y
L.H.S. is positive.
so 28-2y≥0
28≥2y
or 2y≤28
or y≤ 14
Range is (-∞,14]
Answer:
I believe the answer is 40m2
Step-by-step explanation:
s area of a triangle is
1
2
×
base
×
height
Area of given triangle is
1
2
×
8
×
10
=
80
2
=
40
m
2
.
Answer:
1
Step-by-step explanation:
x+2/2x=3/2
2x×3=2x+4
6x=2x+4
4x=4
x=4/4
x=1
Answer:
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