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2 years ago

Audrey owns 25 books, but only 18 books fit on the shelf. How many books did not make it on the shelf?

Mathematics

2 answers:

lina2011 [118]2 years ago

8 0

C, 7 because 25-18 = 7

jeyben [28]2 years ago

3 0

The answer is seven books

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I need some help. I will try to give brainliest

Rudiy27

Answer:

Step-by-step explanation:

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3 years ago

Complete the equation of the line through (-10,-7) and (-5, -9).<br>Use exact numbers,

steposvetlana [31]

Answer:

$y=\frac{-5}{2}*x + 18$

Step-by-step explanation:

A line in 2-dimensional space has the following general equation:

$y=m*x+b$

Where m is the slope of the line, and b just a number

the slope can be obtaine using th following formula:

$m=\frac{x_{2} - x_{1} }{y_{2} - y_{1}}$

The point 2 is the one with the smallest value for x, that is (-10,-7) and the Point 1 is any other that belongs to the line, in this case, (-5,-9)

$m=\frac{-5 - (-10) }{-9 - (-7)}$

Resulting that $\frac{-5}{2}$

To find the other term we can use any other point, I prefer us the first one so...

We have the following equation:

$-7=\frac{-5}{2}*(-10)+b$

Resulting that b=18

I just have to eval the point (-10,-7) in the equation stated at the beginning knowin that m was calculated previously.

8 0

2 years ago

Read 2 more answers

Find the area of the shaded region in each of the following.

zysi [14]

Answer:

Step-by-step explanation:

a) A = ½(5 - -1)(5) = 15 units²

b) A = ½(4 - 2)(4) = 4 units²

c) A = ½(6 - -3)(3) = 13.5 units²

d) A = ½(4 - -1)(8) = 20 units²

5 0

2 years ago

What is the constant of proportionality for the graph (ill give 20 points!)

Ivan

Answer:

I believe it is A

Step-by-step explanation:

Because if you take a point go up 1 and over 2 you get your next point. Rise over run would be 1/2 so the constant of proportionality would be 1/2 or .5

4 0

2 years ago

Find the critical value tc for the confidence level c=0.98 and sample size n=18

Mariulka [41]

Answer step-by-step explanation:

We know that the critical t value for a 98% confidence level for a sample of size n = 18:

Finding degrees of freedom (n-1) = 17

-search the information in table t for 0.98 and find that t = 2.567

6 0

2 years ago