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amid [387]
2 years ago
12

Find the domain & range of the relation {(-5,13), (6,18), (2,-7), (1,4), (-3,-1)}

Mathematics
1 answer:
Neporo4naja [7]2 years ago
5 0

Answer:

Domain: -5,6,2,1,-3

Range: 13,18,-7,4,-1

Step-by-step explanation:

Domain is the independent value/ x / input

Range is the dependent value/ y / output

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A model rocket is launched with an initial velocity of 200 ft per second. The height h, in feet, of the rocket t seconds after t
Solnce55 [7]

Answer:

2.10 s, 10.40 s.

Step-by-step explanation:

We know that the height of the rocket is given by the function:

h=-16t^2+200t

We are asked to find the time for which the height of the rocket will be 350 ft. So, for that moment, we know the height but we don't know the time; however, we know that the equation can help us to find the time, doing h=350:

350=-16t^2+200t

The last is a quadratic equation, which can be put in the form at^2+bt+c=0 and solved applying the formula:

t=\frac{-b+-\sqrt{b^2-4ac} }{2a}

So, let's put the equation on the form at^2+bt+c=0 adding 16t^2 and subtracting 200t to each side of the equation; the result is:

16t^2-200t+350=0

So, we note that a=16, b=-200, and c=350.

Then,

t_1=\frac{200-\sqrt{200^2-4*16*350} }{2*16}=2.10

t_2=\frac{200+\sqrt{200^2-4*16*350} }{2*16}=10.40

According to the equation, that are the times for which the height will be 350 ft; that is because the rocket is going to ascend and then to fail again to the ground.

4 0
3 years ago
PLEASE HELP!!!! Find the area of the rhombus.
anygoal [31]

Answer:

30

Step-by-step explanation:

A=pq

   ----------

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6 0
2 years ago
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A homeowner plans to remodel her bathroom,- and she’s chosen 1-foot-by-1 foot ceramic tiles for the floor. The bathroom is 8 fee
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8976/12=748 tiles

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Sveta_85 [38]
I know for sure it’s not B or D so I believe it is A.
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Hawa just accepted a job at a new company where she will make an annual salary of $44000. Hawa was told that for each year she s
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Answer:  13

Step-by-step explanation:

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