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3 years ago

What is -3(m+6)-(11+9m)

Mathematics

2 answers:

Lady bird [3.3K]3 years ago

7 0

-3(m+6)-(11+9m)

distribute

-3m -3*6 -11-9m

-3m -18 -11-9m

-12m -29

ELEN [110]3 years ago

3 0

First use the distributive property to multiply the first set of parentheses with the -3 and the second parentheses flip the signs because its negative

(-3m-18)+(-11-9m)

Then remove parentheses because it is addition and combine like terms

-12m - 29

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3 years ago

Solve for h.<br>3/7 = h/14 - 2/7

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Answer:

Step-by-step explanation:

Multiplying both sides by 14

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3 years ago

Read 2 more answers

What is the product of (a-5) and (a+3)

abruzzese [7]

= (a-5).(a+3) = a²+3a-5a-15 = a²-2a-15

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2 years ago

_ABC is a right triangle where m_B = 90Á. The coordinates of A and B are (5, 0) and (2, 5), respectively. If the x-coordinate of

Leokris [45]

Since the triangle is a right triangle at point B, then line AB is perpendicular to line BC.
For perpendicular lines, the product of their slopes is -1.
Slope of AB = (5 - 0)/(2 - 5) = 5/-3 = -5/3
Slope of BC = (y - 5)/(7 - 2) = (y - 5)/5

-5/3(y - 5)/5 = -1
-5(y - 5)/15 = -1
-5(y - 5) = -15
y - 5 = 3
y = 3 + 5 = 8

Therefore, the y-coordinate of point C is 8.

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3 years ago