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professor190 [17]

3 years ago

5

Fathi wants to print out a PDF document that is 48 pages long. To save paper, he decides to print on both sides of each sheet an

d to print two pages on each side of the sheet.

1 answer:

vladimir1956 [14]3 years ago

8 0

The answer should come up to 24. 48/2

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PLZ HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Marina CMI [18]

Answer:

2 hours

Step-by-step explanation:

1/3 + 1/6 = 3/6 or 1/2

If it takes 1 hour to fill half the pool it takes two hours to fill the whole pool

4 0

3 years ago

What’s the slope of the line in the graph?

zloy xaker [14]

Check the picture below, let's use those two points on the line to get its slope.

$\bf (\stackrel{x_1}{0}~,~\stackrel{y_1}{1})\qquad (\stackrel{x_2}{2}~,~\stackrel{y_2}{3}) ~\hfill \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{3}-\stackrel{y1}{1}}}{\underset{run} {\underset{x_2}{2}-\underset{x_1}{0}}}\implies \cfrac{2}{2}\implies 1$

5 0

3 years ago

What is 2+8-y equal to

Alecsey [184]

Answer:

0.25

Step-by-step explanation:

8 0

3 years ago

6,859 in standard form

sasho [114]

thats 6859, there is nothing wrong with it

3 0

3 years ago

Write a quadratic function, in standard form, that fits the set of points. Solve it as a system of three equations. (-4, 9), (0,

Tresset [83]

Answer:

$\boxed{y=2x^2+4x-7}$

Step-by-step explanation:

Let the quadratic function be

$y=ax^2+bx+c$

We substitute $(-4,9)$ into the equation to obtain;

$9=a(-4)^2+b(-4)+c$

$\Rightarrow 9=16a-4b+c---(1)$

We substitute $(0,-7)$ to obtain;

$-7=a(0)^2+b(0)^2+c$

$\Rightarrow c=-7---(2)$

We finally substitute $(1,-1)$ to obtain;

$-1=a(1)^2+b(1)^2+c$

$\Rightarrow -1=a+b+c---(3)$

We put equation (2) into equation (1) to get;

$9=16a-4b-7$

$16a-4b=16$

$\Rightarrow 4a-b=4---(4)$

$\Rightarrow -1=a+b-7$

$\Rightarrow a+b=6---(5)$

We add equation (4) and (5) to get;

$4a+a=6+4$

$\Rightarrow 5a=10$

$\Rightarrow a=2$

We put $a=2$ into equation (5) to get;

$2+b=6$

$\Rightarrow b=6-2$

$\Rightarrow b=4$

The reqiured quadratic function is

$y=2x^2+4x-7$

7 0

2 years ago