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Anna007 [38]
3 years ago
9

-3ab+4ac-2ad=-(3ab-4ac+2ad True or false

Mathematics
1 answer:
GalinKa [24]3 years ago
5 0

Answer:

True

Step-by-step explanation:

Simplify the following:  Left hand side

-3 a b + 4 a c - 2 a d

Factor a out of -3 a b + 4 a c - 2 a d:

Answer:  a (-3 b + 4 c - 2 d)

______________________________

Simplify the following:  Right hand side

-(3 a b - 4 a c + 2 a d)

Factor a out of 3 a b - 4 a c + 2 a d:

Answer:  -a (3 b - 4 c + 2 d)

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If the radius of a circle is 14 ft, then the diameter of the circle is _____.
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There are 8 circles and 20 triangles. What is the simplest ratio of circles to total shapes?
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If m<1=40 and m<2=80, what is m<3?
prohojiy [21]

Answer:

60 degrees, 55 degrees, and 50 degrees respectively

Step-by-step explanation:

Equation: m<1+m<2+m<3=180

1. 40+80+x=180 Subtract 120(because 40+80=120)

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5 0
4 years ago
Solve the following system of equations by the substitution method.
ruslelena [56]
5x = y + 6 (I)
2x - 3y = 4 (II)
-------------------
We have:
5x = y + 6 → x =  \frac{y+6}{5}

Soon:
2x - 3y = 4 → 2* (\frac{y+6}{5}) - 3y = 4\to \frac{2y+12}{5} - 3y = 4
<span>least common multiple (5)
</span>\frac{2y+12}{5} - 3y = 4\to \frac{2y+12}{\diagup\!\!\!\!\!5} - \frac{15y}{\diagup\!\!\!\!\!5} = \frac{20}{\diagup\!\!\!\!\!5}
2y + 12 - 15y = 20
- 15y + 2y = 20 - 12
- 13y = 8
\boxed{\boxed{y = - \frac{8}{13} }}\end{array}}\qquad\quad\checkmark


4 0
3 years ago
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