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asambeis [7]
3 years ago
15

Distribute 3x(5x-5)a) 12x^2+8xb) 15x^2-15xc) 12x^2-9xd) 15x^2+10x​

Mathematics
2 answers:
mr_godi [17]3 years ago
6 0

I am pretty sure its B

Step-by-step explanation:

I did this last year:)

My name is Ann [436]3 years ago
4 0

Answer:

b) 15x2 - 15x

Step-by-step explanation:

Multiply 3x by 5x

Multiply 3x by - 5

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Line segment pr is a directed line segment beginning at p(-10,7) and ending at r(8,-5). find point q on the line segment pr that
frosja888 [35]

\textit{internal division of a line segment using ratios} \\\\\\ P(-10,7)\qquad R(8,-5)\qquad \qquad \stackrel{\textit{ratio from P to R}}{4:5} \\\\\\ \cfrac{P\underline{Q}}{\underline{Q} R} = \cfrac{4}{5}\implies \cfrac{P}{R} = \cfrac{4}{5}\implies 5P=4R\implies 5(-10,7)=4(8,-5)

(\stackrel{x}{-50}~~,~~ \stackrel{y}{35})=(\stackrel{x}{32}~~,~~ \stackrel{y}{-20})\implies Q=\underset{\textit{sum of the ratios}}{\left( \cfrac{\stackrel{\textit{sum of x's}}{-50 +32}}{4+5}~~,~~\cfrac{\stackrel{\textit{sum of y's}}{35 -20}}{4+5} \right)} \\\\\\ Q=\left( \cfrac{-18}{9}~~,~~\cfrac{15}{9} \right)\implies Q=\left( -2~~,~~\cfrac{5}{3} \right)

7 0
2 years ago
The equation of the line with slope -3 that goes through the point (-9,-7) can be written in the form y=mx+b
katrin2010 [14]

Answer:y= -9x-25

Step-by-step explanation: Write the slope-intercept form of an equation of the line with slope -9 and passes through the point (-2, -7).

--------

Form:: y = mx + b

Solve for "b"::

-7 = -9*-2 + b

-7 = 18 + b

b = -25

-----

Equation:

y = -9x - 25

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

Cheers,

Stan H.

-----------

point slope formula

y-y1=m(x-x1)

y+7= -9(x+2). Notice that we are subtracting a negative, so we have to add.

 

y+7=-9x-18

y= -9x-25

6 0
3 years ago
Two-thirds of a number, decreased by thirty-six, is at most twenty-two. Find the number.
Nataliya [291]

Answer:

87 is the number

Step-by-step explanation:

6 0
3 years ago
160000 in scientific notation​
anyanavicka [17]

Answer:

1.6* 10^5

Step-by-step explanation:

1. Move the decimal place to the left to make a number from 1 to 10.

2. Find the exponent, that is the number of times you moved the decimal.

3.Then put the number in scientific notation.

6 0
4 years ago
Read 2 more answers
What is the factored form of x2 – 7x + 12?
const2013 [10]

Answer:

D

Step-by-step explanation:

Given

x² - 7x + 12

Consider the factors of the constant term (+ 12) which sum to give the coefficient of the x- term (- 7)

The factors are - 4 and - 3, since

- 4 × - 3 = + 12 and - 4 - 3 = - 7, thus

x² - 7x + 12 = (x - 4)(x - 3) ← in factored form → D

4 0
3 years ago
Read 2 more answers
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