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Masteriza [31]
3 years ago
11

Write a function rule based on the table below.

Mathematics
1 answer:
charle [14.2K]3 years ago
5 0

Answer:

\large\boxed{f(x)=5x}

Step-by-step explanation:

\begin{array}{c|c}x&f(x)\\1&5\\2&10\\3&15\end{array}\\\\\\f(1)=5(1)=5\\f(2)=5(2)=10\\f(3)=5(3)=15\\\Downarrow\\f(x)=5x

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What is 100 percent of 39
Karo-lina-s [1.5K]

Answer:

39

Step-by-step explanation:

4 0
3 years ago
P (n), given below, is the price P in dollars for n grams of vitamins.P(n)=0.4n+5.7Complete the following statements.
Amanda [17]

(a)

In the function P(n) = 0.4n +5.7, P(n) is price of n grams of vitamins. So for the function x = P(n); x is price of n grams of vitamins.

The inverse of function determine amount of the vitamins for the known price of x dollars. So answer is,

The amount of vitamins (in grams) for a price of x dollars.

(b)

Let P(n) = x, So

x=0.4n+5.7

Replace n by x and x by n in the given equation.

n=0.4x+5.7

Simplify the equation for x.

\begin{gathered} n+0.4x+5.7 \\ n-5.7=0.4x \\ x=\frac{n-5.7}{0.4} \\ =\frac{10n-57}{4} \end{gathered}

So inverse of function is after interchange of variables,

P^{-1}(x)=\frac{10x-57}{4}

(c)

Substitute 8.3 for x in the inverse equation to obtain the valur of P^-1(8.3).

\begin{gathered} P^{-1}(8.3)=\frac{10\cdot8.3-57}{4} \\ =\frac{83-57}{4} \\ =\frac{26}{4} \\ =6.5 \end{gathered}

So answer is 6.5.

7 0
1 year ago
Use summation notation to express each of the following calculations Add the scores and square the sum O 2(SX) Square each score
iragen [17]

a)

Add the score and then square the sum.

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b)

Square each score and then add the squared values.

By using the summation notation we can write the above statement is Σx²

Subtract 2 point from each score and then add the resulting values.

By using the summation notation we can write the above statement is  Σ(x-2)

Subtract 1 point from each score and square the resulting values. Then add the squared values.

By using the summation notation we can write the above statement is Σ(x-1)²

7 0
4 years ago
What is the percent of increase for a population that changed from 25,000 to 30,000?
Delvig [45]

Your answer would be 20% I believe


3 0
4 years ago
Read 2 more answers
Which graph shows the line y=35x−3?
elena-s [515]

Answer:

the last picture

Step-by-step explanation:

the one where the line hits the -3 mark on the y-axis

5 0
3 years ago
Read 2 more answers
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