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Kisachek [45]
3 years ago
15

I NEED HELPPPPPP!!!!!! which set of values is a function??​

Mathematics
1 answer:
PilotLPTM [1.2K]3 years ago
8 0

Answer:

(6,-5),(7,-3),(8,-1),(9,1)

Step-by-step explanation:

a function cannot have two inputs for the same output as a(with 3),b(with9), and c(with5) have two output for 1 input ,they are not functions

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What is 48% of 72 time 3 divided by 9
devlian [24]
11.52 72×3=216x48÷100÷9= 11.52
8 0
3 years ago
Read 2 more answers
Just part c please thanks
Dovator [93]
Unfortunately the portion of the graph shown does not show the locations of points A and B, nor does it show sufficient parts of the curve.

Fortunately, to do part C, it is not necessary to use the graph of the function, nor the locations of points A & B, since we know that t=-1 at A.

The solution is as follows:
We know that the tangent line has the equation
l : 2x -5y -9 = 0 ...................(1)
and that the parametric equation is
x = t^3 -8t;  y = t^2 ..............(2)

We can obtain the intersections of the tangent line (1) with the original curve (2) by substituting (2) in (1), giving
f(t) = 2*(t^3-8*t) -5*(t^2)-9 = 0
or on simplification,
f(t) = 2t^3 -5t^2 -16t -9 = 0 ....................(3) parametric equation of intersection points
Solution of which gives t=9/2 or t=-1.

Since t=-1 is the given tangent point, we conclude that t=9/2 is point B.

Translating into rectangular coordinates for t=9/2, we get
x=t^3-8t=(9/2)^3-8(9/2)= 441/8 = 55.125
y=t^2=(9/2)^2= 81/4 = 20.25

Therefore the coordinates of B:
t=9/2, or (55.125, 20.25)

Attached is the graphics of f(t), showing that t=-1 is a tangent line, and that the solutions are t=-1, or t=9/2.

8 0
3 years ago
Find the ratio of the width to the length of the rectangle, then simplify the ratio. Use the conversion 100 cm = 1 m.
valkas [14]
The answer to the question is c 
3 0
3 years ago
Need help ASAP!!!!!!
chubhunter [2.5K]

Answer:

9

Step-by-step explanation:

5 0
3 years ago
I need help with 4 5 6 and 7
Lady_Fox [76]

Answer:

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4 0
3 years ago
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