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Goshia [24]
2 years ago
15

Which of the following is a true statement about functions ?

Mathematics
1 answer:
Alina [70]2 years ago
6 0

Answer:

D. If f and g are functions then;

(f\bullet g)(x) =f(x)\bullet g(x).

Step-by-step explanation:

The first option is not correct because composition of two functions is not commutative.

The second and third choice will also not yield the same result.

Let

f(x)=x^2 and g(x)=2x.

Then;

(f\bullet g)(x)=2x^3 and f(x)\bullet g(x)=2x^3.

The correct answer is option D.

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Simplify: 2 1/2t+1 1/4t+5u–u​
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Answer:

15t/4 + 4u

Step-by-step explanation:

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8 0
2 years ago
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hoa [83]

Let T,S be the number of days spent at Tahoe and San Francisco, respectively.

We don't know the values of T and S yet, but we know that the holiday lasted 9 days:

T+S=9

We also know that each day spent in Tahoe costed 350 and each day spent in San Francisco costed 475. So, the total cost of the holiday is the sum of the number of days muliplied by their cost:

350T+475S=3650

If we put the two equations together, we have the system

\begin{cases}T+S=9\\350T+475S=3650\end{cases}

Which yields

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5 0
2 years ago
(xTO THE 3RD POWER)3=X6
SVEN [57.7K]

If you are asking x^3*3

then the answer is 3x^3

6 0
2 years ago
Claire made $160 babysitting last summer. She put the money in a savings account that pays 3% interest per year. If Claire doesn
aleksklad [387]

We can make and use the equation: <em>A = 160( 1.03 )^y</em>: A = amount, 160 = amount put in, 1 + .03 = 1.03 = interest, and y as the number of years, as the money is compounded every year. (This is the compound interest equation, but I put in the numbers)

A) 160 * 1.03 = $164.80, 160 * 1.03² = $169.744 ≈ $169.74

B) 160 * 1.03⁵ = 185.48385 ≈ $185.48

The expression is the same as saying (((((160 * 1.03)1.03)1.03)1.03)1.03). This is like multiplying 160 * 1.03, which gives the amount for the first year. Then, that amount is multiplied by 1.03, which is the amount for the second year. This isi repeated until 5 years.

C) 160(1.03)³⁰

7 0
3 years ago
Solve the inequality –3v – 2v &gt; 35 for v.
viva [34]

Answer:

-7 > v OR vice-versa [v < -7]

Step-by-step explanation:

Combine like-terms [-5v > 35], then divide by -5.

NOTE: Since you are dividing by a negative, reverse the sign.

3 0
3 years ago
Read 2 more answers
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