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3 years ago

9

A student bought artichokes for 8.40, cucumbers for 2.88, lettuce for 4.65, tomatoes for 1.15, and broccoli for 2.50. Find a rea

sonable estimate of the total amount the student spent on vegetables by rounding each price to the nearest dollar..

1 answer:

ankoles [38]3 years ago

7 0

Answer:

20

Step-by-step explanation:

8+3+5+1+3=20

rounded up at .50 or higher

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Which of the following is the graph of the piecewise function

trapecia [35]

By analyzing the piecewise function, we conclude that the first graph is the correct one,

<h3>Which of the following is the graph of the piecewise function?</h3>

The first part of the piecewise function is:

f(x) = √(-x - 2) for x ≤ -2

This parts ends at:

f(-2) = 0

With that, we can discard the last two graphs.

Now, the second part is a rational function with a negative coefficient.

Because of that sign, when x is positive, the function tends to negative infinite near in the asymptote, while when x is negative, the function tends to positive infinite in the asymptote.

Because of that, we conclude that the correct option is the first graph.

If you want to learn more about piecewise functions:

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1 year ago

Write an expression please help me

qwelly [4]

I'm pretty sure it's

(24/3) + x.

Simplify it: 8 + x

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4 years ago

Which is an equation of the line that passes through<br> the points (5, 2) and (10, -3)?

sashaice [31]

Answer:

y = -x + 7

Step-by-step explanation:

Hi there!

We are given the following points:
(5,2) and (10,-3)

We want to find the equation of the line that passes through these 2 points

There are 3 ways to write the equation of the line, yet the most common way is slope-intercept form, which is y=mx+b (m is the slope and b is the y intercept).

First, let's find the slope of the line.

The slope can be calculated from 2 points using the equation $\frac{y_2-y_1}{x_2-x_1}$ , where $(x_1, y_1)$ and $(x_2, y_2)$ are points

We have everything we need to find the slope, but let's label the values of the points to avoid confusion and mistakes.

$x_1=5\\y_1=2\\x_2=10\\y_2=-3$

Now substitute these values into the formula to find the slope

m= $\frac{y_2-y_1}{x_2-x_1}$

m= $\frac{-3-2}{10-5}$

Simplify

m= $\frac{-5}{5}$

Divide

m=-1

The slope of the line is -1

We can substitute this value as m in y=mx+b.

Here's the equation of our line so far:

y=-x+b

Now we need to find b

As the equation passes through the points (5,2) and (10,-3), we can use either point to find the value of b

Taking (5,2) for example:

Substitute 5 as x and 2 as y

2=-5+b

Add 5 to both sides

7=b

Substitute 7 as b in the equation

y = -x + 7

Hope this helps!

See more on this topic here: brainly.com/question/27166723

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2 years ago

1/2 divided by (-7) and show the work please

Strike441 [17]

Also can I plz get brainiest?

Answer: -0.07142857142

I looked the question up on google ;)

6 0

3 years ago

Read 2 more answers

Tammy figured her math exam would be difficult unless she put in at

Ludmilka [50]

Answer: No, she did not study for at least 15 hours.

=======================================================

Explanation:

Fractions are often a pain, so I find it easier to convert to decimal form whenever possible.

1/2 = 0.5

3/4 = 0.75

which lead to,

2 & 1/2 = 2 + 1/2 = 2 + 0.5 = 2.5

4 & 3/4 = 4 + 3/4 = 4 + 0.75 = 4.75

4 & 1/2 = 4 + 1/2 = 4 + 0.5 = 4.5

-----------------------------

We can then rephrase the problem like so:

"She studied 2.5 hours on Monday, 3 hours on Tuesday, 4.75 hours on Wednesday, and 4.5 hours on Thursday"

Add up those decimal values to get:

2.5 + 3 + 4.75 + 4.5 = 14.75

In total, Tammy studied for 14.75 hours, which is equivalent to 14 & 3/4 hours.

This result is smaller than 15, so she did <u>not</u> study for at least 15 hours.

Note: "at least 15" is the same as saying "15 or more".

6 0

3 years ago