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3 years ago

Simplify 2x - 8x - 6y + 9 -14 + x + 11y.

Mathematics

2 answers:

raketka [301]3 years ago

8 0

We can see that 2x - 8x + x = -5x
and -6y + 11y = 5y
and 9 - 14 = -5
so simplified, it is -5x + 5y - 5

Alexeev081 [22]3 years ago

3 0

The answer to 2x-8x-6y+8-14+x+11y= -5x-5+5y

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mamaluj [8]

Answer:

$\sf B) \ y=-\dfrac{1}{5}x-4$

Explanation:

Equation: y = mx + b [where "m" is slope, "b" is y-intercept]

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Which expression is equivalent to 6(4(6x-4y)-5) ?

iren2701 [21]

Answer:

$144x - 96y - 30$

Step-by-step explanation:

Step 1: Distribute

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$6(24x - 16y - 5)$

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3 years ago

Line segment BC will be reflected over line m to form line segment BC. Which of the following statements must be true?

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Answer:

Option A

Step-by-step explanation:

To reflect line segment BC over line m, BB' will be perpendicular to the line m

and line m bisector of BB'.

So, the correct answer is option A

A) Line m is the perpendicular bisector of line segment BB' and the line segment CC'

Option b is wrong , it is impossible for the line B'C' to be perpendicular to line BC. B'C' is the image of BC.

Both option c and d is wrong because the perpendicular distance from b to the line m not equal to the perpendicular distance from c to the line m.

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3 years ago

A president, treasurer, and secretary, all di erent, are to be chosen from a club consisting of 12 people (whose names are I, J,

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Answer:

There are 220 choices

Step-by-step explanation:

Given

$People = 12$

$Selection =3$ (President, Treasurer and Secretary)

Required

Determine number of selection (if no restriction)

This is calculated using the following combination formula:

$^nC_r = \frac{n!}{(n - r)!r!}$

Where

$n = 12$

$r= 3$

So, we have:

$^nC_r = \frac{n!}{(n - r)!r!}$

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3 years ago