3 years ago

Which of the following relations is a function?

Mathematics

1 answer:

Luda [366]3 years ago

8 0

Yes the correct answer is A

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Vector vector a has a magnitude of 28 units and points in the positive y-direction. When vector vector b is added to vector a ,

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28 + vector b = -12

vector b = -40

vector b has magnitude 40 units in the negative y direction.

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3 years ago

To rent a certain meeting room, a college charges a reservation fee of $ 46 and an additional fee of $ 6.40 per hour. The chemis

lisabon 2012 [21]

Answer:

Up to 5 hours

Step-by-step explanation:

<u>Given:</u>

One off fee = $46
Hourly rent = $6.4 / hr
Amount limitation= $78

<u>Equation to reflect the condition:</u>

78 = 46 + 6.4t
6.4t = 78 - 46
6.4t = 32
t = 32/6.4
t = 5 hours max

So, the meeting room can be rented for up to 5 hours with $78

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3 years ago

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3 years ago

See attached picture, is there a way to enter equations or algebraic symbols?

coldgirl [10]

SOLUTIONS

Solve a given equations or algebraic symbols?

$\begin{gathered} f(x)=x^2+2x \\ g(x)=1-x^2 \end{gathered}$

(A)

$\begin{gathered} (f+g)(x)=(x^2+2x)+(1-x^2) \\ collect\text{ like terms} \\ x^2-x^2+2x+1 \\ (f+g)(x^)=2x+1 \end{gathered}$

(B)

$\begin{gathered} (f-g)(x)=(x^2+2x)-(1-x^2) \\ =x^2+2x-1+x^2 \\ =x^2+x^2+2x-1 \\ (f-g)(x)=2x^2+2x-1 \end{gathered}$

(C)

$\begin{gathered} fg(x)=(x^2+2x)(1-x^2) \\ =x^2-x^4+2x-2x^3 \\ fg(x)=-x^4-2x^3+x^2+2x \end{gathered}$

(D)

$\begin{gathered} \frac{f}{g}(x)=(x^2+2x)\div(1-x^2) \\ =\frac{x^2+2x}{1-x^2} \end{gathered}$

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1 year ago

What is 5:1 as a fraction?

vodomira [7]

The fraction would be 5/1.

7 0

3 years ago

Read 2 more answers