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3 years ago

Factor this polynomial expression.

Mathematics

1 answer:

serg [7]3 years ago

7 0

Answer:

i dont know but i would help if I could

Step-by-step explanation:

Do your best

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The selling price of an item is $.520 It is marked down by 20%, but this sale price is still marked up from the cost of 320$.

Fynjy0 [20]

Answer:

340

Step-by-step explanation:

it says that su have to multipy so then yeah

3 0

3 years ago

How to simplify the expression. 60m-15(4-8m)+20

Mama L [17]

Answer:

180m-40

Step-by-step explanation:

60m-15(4-8m)+20

= 60m-60+120m+20

= 180m-40

4 0

3 years ago

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Jalissa bought a backpack for $30 and n notebooks for $2.50 each.

Elis [28]

Y=2.5x+30 - the function where y = the total cost and x = the # of notebooks.

40 = 2.5x + 30 - Plug 40 into y and solve
10= 2.5x
x = 4, the number of notebooks she bought

4 0

3 years ago

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For the line that passes through Y(3,0), parallel to DJ with D(-3,1) and J(3,3), complete the following: Find the slope. Write a

Ulleksa [173]

I am going to graph the situation on an external graphing utility and show you the answer, it will take a

minute, stay with me.

$m\text{ = }\frac{rise\text{ }}{\text{run}}=\frac{change\text{ in y}}{\text{change in x}}=\frac{3}{1}=3$ $y\text{ = mx+b}\rightarrow\text{ b =-1}$

So the equation of the line is.

$y\text{ =3x -1}$ $y\text{ -1 = m(3-0)}$

8 0

2 years ago

An airplane is flying at a height of 5 kilometers above the ground. The distance along the ground from the airplane to the airpo

Cerrena [4.2K]

$\rule{70mm}{2.9pt}$

$\large \sf{✟ \: Problem \: ✟} :$

An airplane is flying at a height of 5 kilometers above the ground. The distance along the ground from the airplane to the airport is 7 kilometers. What is the angle of depression from the airplane to the airport? (Write the answer to the nearest degree.)

$\rule{70mm}{2.9pt}$

$\large \sf{✟ \: Solution \: ✟} :$