Answer:
177.3 feet
This is a classic find the vertex of a parabola question.
if this was a calculus class the solution would be to take the derivative and set it equal to zero... -32t+ 105 = 0
BUT i assume that you are not in a calculus class..
so we try plan "B" the highest (or lowest) point of parabola is it's vertex
the vertex formula is [-b/2a,f(-b/2a)]
in your problem a = -16, b=105, c= 5
so the "X" (TIME) is located at -(105)/(2*-16) = 3.28
plug in 3.28 into -16(3.28)^2 + 105(3.28) + 5 = 177.27
and you will get
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
Alright to find the answer.
Simplify the left side.
3x÷2-15÷2=-6
Now move all the terms that are not containing x to the right side of the equation.
3x÷2=3÷2
Multiply the numerator of the first fraction by the denominator of the second fraction. Set this equal to the product of the denominator of the first fraction and the numerator of the second fraction.
(3x)⋅(2)=(2)⋅(3)
Finally, solve the equation for x which is going to equal 1
So the answer is x=1
Hope this helped you.
Step-by-step explanation:
area of figure = 5x² + 3
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