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2 years ago

14a^8c^9 + 2a^4c^3 [Algebra]

Mathematics

1 answer:

rosijanka [135]2 years ago

3 0

Answer:

im not the best at algebra but

2a+3b+4c

Step-by-step explanation:

subtract

(2a−3b+4c) from the sum of (a+3b−4c),(4a−b+9c) and (−2b+3c−a).

add

=(a+3b−4c)+(4a−b+9c)+(−2b+3c−a)

=(a+4a−a)+(3b−b−2b)+(−4c+9c+3c)

=4a+8c

then subtract

=(4a+8c)−(2a−3b+4c)

=4a+8c−2a+3b−4c

=2a+3b+4c

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Answer:

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2 years ago

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Jenna flips two pennies 105 times how many times can she expect those coins to come up heads

alukav5142 [94]

The more observations you make the closer and closer the experimental probability will approach the theoretical probability. In this case the theoretical probability is:

P(HH)=(1/2)(1/2)=1/4

So in 105 trials one would expect to get two heads:

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3 years ago

Using the graph to the right, write the ratio in simplest form. BD/AD

Romashka [77]

Answer:

$\frac{BD}{AD} = \frac{5}{7}$

Step-by-step explanation:

Coordinate of B = 1

Coordinate of D = 6

Coordinate of A = -1

BD = |1 - 6| = 5 units

AD = |-1 - 6| = |-7| = 7 units

$\frac{BD}{AD}$

Plug in the values

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2 years ago

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bagirrra123 [75]

Answer:

Quando Rondo

Step-by-step explanation:

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3 years ago

What is the answer to -2(7-y)+4=-

pashok25 [27]

Answer:

2y-10

Step-by-step explanation:

-2(7-y)+4

distribute:

=(-2)(7)+(-2)(-y)+4

= -14+2y+4

Combine like terms:

= -14+2y+4

=(2y)+(-14+4)

= 2y+-10

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3 years ago