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Elza [17]
3 years ago
7

Express 4x^2 − 12x in the form (2x + a)^2 + b.

Mathematics
1 answer:
gladu [14]3 years ago
8 0

Answer: (2x-3)^2-9\\

a=-3

b=-9

Step-by-step explanation:

4x^2-12x=(2x)^2-2*2x*3+9-9\\=(2x-3)^2-9\\

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Dave rented a limousine for his wife's birthday. The hourly rate is $70. They used the limousine for 4 hours, plus Dave gave the
nika2105 [10]
The correct answer is D) $336.

1. First calculate how much he spent on rental fees: $70 x 4 = $280

2. Next calculate how much he gave as a tip: $280 x 0.2 = 56

3. Add the two together $280 + $56 = $336

Muchas luck on your HW!
3 0
3 years ago
PLEASE HELP!! IM HAVING A HARD TIME UNDERSTANDING THIS QUESTION.
kondor19780726 [428]

Answer:

14.6

Step-by-step explanation:

8 0
3 years ago
At Pizza Hut they have exponential pizza, which is a 24-inch cheese pizza that costs $17.50. Each topping for the pizza costs $2
VashaNatasha [74]
So you would want to find what would add up to $29.25
So for the toppings ($2.35×5) equals $12.75
Now just add $17.50
SO your equation is:
(2.35×5)+17.50=29.25
6 0
4 years ago
4. A number m is such that when it is divided by 30, 36, and 45 the remainder is always 7,
Bezzdna [24]

Answer:

187

Step-by-step explanation:

A number m is such that when it is divided by 30, 36 and 45 the remainder is always 7.

We should first find the LCM of 30, 36 and 45

We get that the LCM of the three numbers is 280 (working attached).

So now;

\frac{180}{30} = 6

\frac{180}{36} = 5

\frac{180}{45} = 4

But we need a number that leaves a remainder of 7 so we add 7 to 180 to get; 180 + 7 = 187.

5 0
4 years ago
Buy any mistakes in the renaming of the fractions below show the correct remaining 9 / 4 = 9 / 12 2 / 3 + 6 / 12
Klio2033 [76]

Step-by-step explanation:

3/4=9/12 CORRECT

2/3=6/12 FALSE

Step-by-step explanation:

What is done to top of the fraction must be done to the bottom as well in order for the renaming to be true.

3*3 = 9

4*3 = 12

Therefore proven to be true

However,

2*3 = 6

but 3*3 = 9

The second fractions is renamed incorrectly and should be either 2/4=6/12 or 2/3=2/9

Hope this helps!

7 0
3 years ago
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