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3 years ago

F(x) = -1/3x find the average rate of change of f from -2 to 2

1 answer:

8 0

Average rate=(change in y)/(change in x)

if f(x)=-x/3

r=( f(2)-f(-2) )/(2--2)

r=(-2/3-2/3)/(2+2)

r=(-4/3)/4

r=-4/12

r=-1/3

For a line, this is always true, since all lines have a constant velocity, the average velocity over any interval is equal to the slope.

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Find the sum of (2x-5y) and (x+y)

Alja [10]

Answer: 2x-5y+x+y

3x-4y

Step-by-step explanation: combinded like terms

6 0

3 years ago

What is the sum of the rational expressions below? X/4 + 3/5x

Andrew [12]

Answer:

The answer is $\frac{5x^2+12}{20x}$ .

Step-by-step explanation:

Given:

X/4 + 3/5x.

Now, to find the sum of the rational expressions.

$\frac{x}{4} +\frac{3}{5x}$

So, to solve it by adding:

$\frac{x}{4} +\frac{3}{5x}$

$=\frac{5x\times x+3\times 4}{5x(4)}$

$=\frac{5x^2+12}{20x}$

Therefore, the answer is $\frac{5x^2+12}{20x}$ .

4 0

3 years ago

Alana makes and sells homemade bracelets. She made a profit of $65 last week. This week, she donated some bracelets to charity.

yuradex [85]

Answer:

$65 + $(-25) = $40

$65 - $25 = $40

Step-by-step explanation:

Profit made last week = $65

Profit made this week = - $25

Addition expression for her profit over the two weeks

Last week profit + this week's profit:

$65 + $(-25) = $40

Subtraction expression for her profit over the two weeks :

$65 - $25 = $40

5 0

3 years ago

2. If the raffle has 200 tickets total, then

klasskru [66]

If the raffle has 200 tickets total, then about 50 tickets will be in the dining out raffle.

<h3>What is an equation?</h3>

An equation is an expression that shows the relationship between two or more numbers and variables.

From the diagram:

Percentage of dinner out = 65% - 40% = 25%

For 200 total tickets:

Number of dinning out raffle = 25% of 200 = 0.25 * 200 = 50 ticket

If the raffle has 200 tickets total, then about 50 tickets will be in the dining out raffle.

Find out more on equation at: brainly.com/question/2972832

5 0

2 years ago

Slope intercept y = 2/3x + 4. plz explain how i find x

White raven [17]

The equation: y = 2x/3 + 4 is a line with infinite values for x. So unless you have a y-value to plug in to find the corresponding x-value all you can do is write the equation in terms of y.

x = 3(y-4)/2

The slope and intercepts on the other hand can be determined from the given equation. y= mx + b is slope-intercept form of a linear equation. "m" is the slope and "b" is the y-intercept. Plug in y = 0 to find the x-intercept.

8 0

4 years ago