Ask question

Ask question

All categories

4 years ago

12

Find the unit rate. $7.96 for 4 pounds

1 answer:

Licemer1 [7]4 years ago

7 0

Answer:

$1.99 per lb

Step-by-step explanation:

Take the dollar amount and divide by the number of pounds

$7.96 / 4 lbs

$1.99 per lb

You might be interested in

What is the average rate of change of f(x) = -x2 + 3x + 6 over the interval –3

Rufina [12.5K]

Answer:

$\frac{\Delta y}{\Delta x} =\frac{f(x_2)-f(x_1)}{x_2-x_1} =\frac{6-(-12)}{3-(-3)} =\frac{18}{6}= 3$

Step-by-step explanation:

To find the average rate of change of a function over a given interval, basically you need to find the slope. The mathematical definition of the slope is very similar to the one we use every day. In mathematics, the slope is the relationship between the vertical and horizontal changes between two points on a surface or a line. In this sense, the slope can be found using the following expression:

$Average\hspace{3}rate\hspace{3}of\hspace{3}change=Slope=\frac{y_2-y_1}{x_2-x_1} =\frac{f(x_2)-f(x_1)}{x_2-x_1}$

So, the average rate of change of:

$f(x)=-x^2+3x+6$

Over the interval $-3$

Is:

$f(x_2)=f(3)=-(3)^2+3(3)+6=-9+9+6=6\\\\f(x_1)=f(-3)=-(-3)^2+3(-3)+6=-9-9+6=-12$

$\frac{\Delta y}{\Delta x} =\frac{f(x_2)-f(x_1)}{x_2-x_1} =\frac{6-(-12)}{3-(-3)} =\frac{18}{6}= 3$

Therefore, the average rate of change of this function over that interval is 3.

3 0

3 years ago

F(h) = -2(h - 4)2 + 22.

Ivenika [448]

Here’s what I found that can help you step by step

5 0

3 years ago

What is the measure of the angle at the tail end of the kite? if the top area is where its pointed is 122?

nataly862011 [7]

Answer:

The angle is 58 degrees

Step-by-step explanation:

Given

See attachment for kite

Required

The angle at the tail end

Represent this angle with x.

From the attached kite, we have:

1 angle = 122

2 angles = right-angled

So, we have:

$x + 122 +90+90 = 360$ --- sum of angles in a kite

$x + 302 = 360$

Solve for x

$x =- 302 + 360$

$x =58^\circ$

8 0

3 years ago

Which polynomial is represented by the algebra tiles?

aev [14]

Answer:

2x^2-4x-6

Step-by-step explanation:

I don't know what kind of math this is, but simply add up all of the like-terms.

There are 2 +x^2 --> 2x^2

There are 4 -x --> -4x

There are 6 - --> -6

7 0

3 years ago

Read 2 more answers

Please Hurry!!!<br><br><br> What is the domain of f(x) = ?

Evgen [1.6K]

Download an app called photomath
it will help you

3 0

3 years ago

Read 2 more answers