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velikii [3]
3 years ago
5

at current prices, roberta can drive her car 8.2 miles per dollar of gasoline that she buys. Roberta and three of her friends de

cide to go on a road trip to a neighboring university that is 105 miles away and agree to split the cost evenly . to the nearest cent, how much money will each have to contribute to get to the university and back?
Mathematics
1 answer:
Gekata [30.6K]3 years ago
7 0

Answer:

I think it's $12.80 but I might be wrong.

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True or false, areas under the standard normal curve cannot be negative, whereas z-scores can be positive or negative.
Veseljchak [2.6K]

Answer:

True.

Step-by-step explanation:

We have been given a statement. We are asked to determine the given statement is true or false.

Statement: Areas under the standard normal curve cannot be negative, whereas z-scores can be positive or negative.

We know that area under the standard normal curve is equal to 1, so area under normal curve cannot be negative.

We know that a z-score represents that a data point is how many standard deviation above or below mean.

When a data point is less than mean, then z-score will be negative and when a data point is greater than mean, the z-score will be positive.

Therefore, our given statement is true.

5 0
3 years ago
What is the slope of the line shown below?​
Sophie [7]

Hi there!

\large\boxed{slope = \frac{1}{5}}

Use slope formula to solve for the slope of the line:

slope = \frac{y_{2}-y_{1}  }{x_{2} -x_{1} }

Plug in points into the equation. We can use the points (0, -10) and (25, -5):

slope = \frac{-5-(-10)  }{25 -0 } = \frac{5}{25} = \frac{1}{5}

3 0
3 years ago
What is the area of this figure?<br><br> Need it now!!
saw5 [17]

Answer:

The area is 452cm

Step-by-step explanation:

For the big square we have to multiply 15*18 and that is the area so-

15*18=270

Next we multiply 13 and 14

13*14=182

And now we add 270 and 182 to get the total area

270+182=452

7 0
2 years ago
Read 2 more answers
Inverse of y=14x2 show derivations
Rudik [331]
<h2>Answer:</h2>

f^{-1}  (x)=\sqrt{\frac{x}{14}}.

<h2>Step-by-step explanation:</h2>

<h3>1. Write the expression.</h3>

y=14x^2

<h3>2. Substitute y for x, and x for y.</h3>

x=14y^{2}

<h3>3. Solve for y.</h3>

14y^{2}=x\\ \\y^{2} =\frac{x}{14} \\ \\y=\sqrt{\frac{x}{14}}

<h3>4. Express your result.</h3>

f^{-1}  (x)=\sqrt{\frac{x}{14}}.

4 0
1 year ago
Explain how you can use base 10 blocks to find one. 54+2.37
jasenka [17]
So you mean add 54+2.37? Well, I do know that the answer to 53+2.37= 2.90. I hope I helped, even if I only helped by an inch.
6 0
2 years ago
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