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tresset_1 [31]
3 years ago
13

Evaluate f(x)=3x-6 when x=2 and x=-4

Mathematics
1 answer:
stiks02 [169]3 years ago
4 0

Answer:

Step-by-step explanation:

Plug in the x

f(2) = 3(-4)-6

2 = -12 - 6

2 = -18

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Someone please explain (:
GaryK [48]

Answer:

a.) 1.38 seconds

b.) 17.59ft

Step-by-step explanation:

h(t) = -16t^2 + 22.08t + 6

if we were to graph this, the vertex of the function would be the point, which if we substituted into the function would give us the maximum height.

to find the vertex, since we are dealing with something called "quadratic form" ax^2+bx+c, we can use a formula to find the vertex

-b/2a

b=22.08

a=-16

-22.08/-16, we get 1.38 when the minuses cancel out. since our x is time, it will be 1.38 seconds

now since the vertex is 1.38, we can substitute 1.38 into the function to find the maximum height.

h(1.38)= -16(1.38)^2 + 22.08t + 6 -----> is maximum height.

approximately = 17.59ft -------> calculator used, and rounded to 2 significant figures.

for c the time can be equal to (69+sqrt(8511))/100, as the negative version would be incompatible since we are talking about time. or if you wanted a rounded decimal, approx 1.62 seconds.

7 0
3 years ago
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kodGreya [7K]
This answer is 41
9 divided by 3
+8
x 5
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4 0
3 years ago
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4x = 37<br><br><br> 311<br><br><br><br> 127<br><br><br><br> 77<br><br><br><br> 328
ioda
4×77. 75=311
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6 0
3 years ago
Practice Problem #1: Graph the function y = -x.
gavmur [86]

Answer:y=-y

Step-by-step explanation:

4 0
3 years ago
Can somebody Answer AND Explain please to be marked brainliest. Click on the photo to see the math problem.
alexdok [17]
The answer is 4.25
In the first step he never distributed the 1/12 to the 18. He only distributed to the 14
6 0
3 years ago
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