Answer: (-0.4, 6.8)
The graph is attached
Step-by-step explanation:
We can find the axis of symmetry using the formula x = -b/2a
x = - -4/2(-5)
x = 4/-10
x = 0.04
Substitute for x and calculate y
y = 
y = 6.8
if they run 46.93 in 1 second multiply that by 1.8
46.93 x 1.8 = 84.474 feet
round the answer as needed
Answer:
A
Step-by-step explanation:
Answer:
1/4
Step-by-step explanation:
Let the fraction be x/y
(x + 1)/y = 1/2
x/(y - 1) = 1/3 Cross multiply both equations.
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2*(x + 1) = y Remove the brackets
2x + 2 = y
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3x = y - 1 Add 1 to both sides.
3x + 1=y - 1+ 1
3x + 1 = y
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Equate both ys
3x + 1 = 2x + 2 Subtract 1 from both sides.
3x + 1-1 = 2x + 2 -1
3x = 2x + 1 Subtract 2x from both sides.
3x-2x = 2x-2x +1 Simplify
x = 1
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y = 3x + 1
y = 3(1) + 1
y = 3 + 1
y = 4
The original fraction was 1/4
