Answer:
88 ft. per sec.
Step-by-step explanation:
Elimination
2x+2y=10
2x-3y=5
multiply first equatn by -1
-2x-2y=-10
add to second equation
2x-3y=5
<u>-2x-2y=-10 +
</u>0x-5y=-5
-5y=-5
divide both sides by 5
-y=-1
muitply b-1
y=1
subsitue
2x+2y=10
2x+2(1)=10
2x+2=10
subtract 2
2x=8
divide 2
x=4
x=4
y=1
solution in (x,y) form is
(4,1)
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Answer:
B
Step-by-step explanation:
Use the pythagorean theorem
a² + b² = c²
a² + 63² = 65²
a² + 3969 = 4225
a² = 256
a = 16
x = 16 meters
Answer:
x^2 + 2x+1
Step-by-step explanation:
g(x) = x^2
Replace x with x+1
g(x+1) = (x+1)^2 = (x+1)(x+1)
FOIL
g(x+1) = x^2+x+x+1 = x^2 + 2x+1