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GREYUIT [131]
2 years ago
12

Expand & simplify (2x+6)(x−9)

Mathematics
1 answer:
Alex777 [14]2 years ago
8 0

Answer:

2x^2-12x-54

Step-by-step explanation:

First 2x times x along with 2x times -9

Second 6 times x  along with 6 times -9

2x^2-18x+6x-54

=2x^2-12x-54

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Question 2 (2 points)<br> Subtract.<br> A) -18 - (-12) =<br> on &amp;<br> 5
muminat

Answer:

-6

(I don’t understand what you mean by on & 5 but..)

Step-by-step explanation:

The two negatives (the -(- ) cancel each other out and make a postive, so

-18 + 12 = -6

7 0
3 years ago
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Christian is planning a vacation and finds an airplane ticket that cost 180$. He found a promo code offering 17% off. Write a si
lesya [120]

Answer:

83/100 x 180

Step-by-step explanation:

We have to find the cost of the ticket after the discount.

100% - 17%= 83%

83% of the total percentage of the original price that he needs to pay.

So we do:

83/100 x 180

So, this would be the expression.

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3 years ago
The graph of f(x) = (0.5)x is replaced by the graph of g(x) = (0.5)x − k. If g(x) is obtained by shifting f(x) down by 5 units,
tekilochka [14]

Answer: The value of k is 5 units.

Step-by-step explanation:

Since we have given that

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If g(x) is obtained by shifting f(x) down by 5 units,

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Hence, k = 5 units

Therefore, the value of k is 5 units.

7 0
3 years ago
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A lake contain 900 gallons of water. The city is pumping water into the lake at a rate of 30 gallons per minute. Which expressio
boyakko [2]

Answer:

900 + 12 x 30

Step-by-step explanation:

4 0
3 years ago
If Sean earns $8.50 per hour sand made a total of $80.75 today, How many hours did he work?
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Sean worked 9 and a half hours.
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