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Verdich [7]
3 years ago
14

Evaluate f(x) = 2x - 7 when x = 4.

Mathematics
1 answer:
gavmur [86]3 years ago
7 0

Answer:

x =  \frac{11}{2}  \\

Step-by-step explanation:

f(x) = 2x - 7

when x = 4

It means that equate f(x) to the value of x that's 4 and solve for x

That's

f(x) = 4

We have

2x - 7 = 4

<u>Add 7 to both sides of the equation</u>

2x  + 7 - 7 = 4 + 7 \\ 2x = 11

<u>Divide both sides by 2</u>

\frac{2x}{2}  =  \frac{11}{2}  \\

We have the final answer as

x =  \frac{11}{2}  \\

Hope this helps you

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The total number of items sold by each student who participated in the fundraiser is showing in the stem and leaf plot
kenny6666 [7]

The statement that is best supported by the data in the stem and leaf plot is D. The most common number of items sold is 15.

<h3>How to illustrate the information?</h3>

It should be noted that the stem and plot diagram is important to illustrate the data given.

Based on the information given, the most common number of items sold is 15.

In conclusion, the correct option is D.

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The total number of items sold by each student who participated in a fund-raiser is shown in the stem and leaf plot.

Which statement is best supported by the data in the stem and leaf plot?

The number of students who sold between 10 and 20 items is greater than the number of students who sold more then 40 items.

The number of students who sold more than 30 items is greater than the number of students who sold fewer than 30 items.

The most common number of items sold is 30.

The most common number of items sold is 15.

4 0
1 year ago
The function y = -15 +2100 can be used to model the height, y, of a parachute jumper x seconds after she jumps from an airplane.
Aleks04 [339]
Did you mean to put a x after -15?
7 0
2 years ago
Read 2 more answers
Please help. Will give brainliest! No links or your account will be a banned
Firdavs [7]

Answer:

1. 18

2. -8

3. 1

4. 84

Step-by-step explanation:

hope this helps! :D

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5 0
2 years ago
Luke bought three canvas boxes to store his papers. The canvas boxes have dimensions of 12 inches by 10 inches by 12 inches. Wha
eimsori [14]

Answer:4320

Step-by-step explanation:

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5 0
3 years ago
Read 2 more answers
3x3-27x=0<br> Solve by factoring a
Eddi Din [679]

After factoring 3x^3-27x=0 the solutions are x=0 , x=3, x= -3

Step-by-step explanation:

We need to solve by factoring:

3x^3-27x=0

Solving:

3x^3-27x=0

Taking 3x common:

3x(x^2-9)=0

Now using formula a^2-b^2=(a-b)(a+b)

3x((x)^2-(3)^2)=0\\3x(x-3)(x+3)=0

3x=0\,\,and\,\,x+3=0\,\,and\,\,x-3=0\\x=0\,\,and\,\,x=-3\,\,and\,\,x=3\\

So, After factoring 3x^3-27x=0 the solutions are x=0 , x=3, x= -3

Keywords: Factorization

Learn more about Factorization at:

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3 years ago
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