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xz_007 [3.2K]
3 years ago
5

Which equation is a function of x? 20 POINTS!!! QUICK PLEASE!

Mathematics
2 answers:
Vlada [557]3 years ago
8 0

Answer:

c

Step-by-step explanation:

Sergeeva-Olga [200]3 years ago
7 0
A function of x means that you get an answer if you plug in a certain value for x.

A is not a function, because it specifies that x=5
B could be a function, but you'd have to rewrite it in a form y = ....
C is a nice function of x. Just swap it: y=x2
D is a circle. You can't rewrite it as a clean function of x. 

So I would choose C.
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A rectangle has vertices at these coordinates.
kompoz [17]
(6,2) is the fourth vertex
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Write an equation for the parabola that passes through (-2, 7) , (1, 10) , and (2, 27) .
vlada-n [284]
(-2,7) (1,10) (2,27)
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3 years ago
Janie has 4 pieces of fruit. 2 of the pieces of fruit are bananas. Write 2 fractions that describe the fraction of fruit that ar
Aleonysh [2.5K]

Answer:

1/2

Step-by-step explanation:

4 fruit and 2 of them are banana so 2/4

banana go on top and total number of fruit go on bottom

to simplify divide numerator and denominator by 2

2/2          1

------ = ---------

4/2          2        

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3 years ago
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PLS HELP ME I NEED HELP ON THIS!!
wolverine [178]

Answer:

Step-by-step explanation:

We multiply 4/5 times 3/1 to find how many miles the penguins swam in one hour.

4 x 3/5 x 1

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Table:

Miles     4/5        12/5

Hours    1/3           1

6 0
2 years ago
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Find a vector that has the opposite direction of u = (1,-2,4), but which has length square root of 3.
Lina20 [59]

Normalize \vec u by dividing \vec u by its magnitude:

\dfrac{\vec u}{\|\vec u\|}=\dfrac{(1,-2,4)}{\sqrt{1^2+(-2)^2+4^2}}=\dfrac{(1,-2,4)}{\sqrt{21}}

Multiply by -1 to reverse its direction, and again by \sqrt3 to ensure this new vector has the magnitude we want. Notice that \sqrt{\dfrac3{21}}=\dfrac1{\sqrt7}.

-\sqrt3\dfrac{\vec u}{\|\vec u\|}=\dfrac{(-1,2,-4)}{\sqrt7}

6 0
3 years ago
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