The difference of two numbers, a and b, is 21. The difference of 5 times a and two times b is 18. What are the values of a and b
1 answer:
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<u><em>Answer:</em></u>
y^2 = 28x
<em><u>Step-by-step explanation:</u></em>
Since the directrix is horizontal, use the equation of a parabola that opens left or right.
(y−k)^2 = 4p(x−h)
Find the vertex.
(0,0)
Find the distance from the focus to the vertex.
p = 7
Substitute in the known values for the variables into the equation
(y−k)^2 = 4p(x−h).
(y−0)^2 = 4(7)(x−0)
Simplify.
<em>y^2 = 28x</em>
Answer:
175(130)^t) < 1200
Step-by-step explanation:
The occupancy is 1200 so it must me less than 1200 (<1200)
the number of people in at any time is 100% of the people in or 1.00
and it increases by 30% or 0.30 (1.30)
And it starts with 175 people (1.75)
so
start people / How its increases / to the power of t / less than capacity
175 (1.30) < 1200