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4 years ago

What is the answer for 12a-a

Mathematics

1 answer:

Ray Of Light [21]4 years ago

3 0

11a.
12a-1a=11a is same thing as 12a-a

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SERIOUS MATH HELP PLEAZE<br> SHOW WORK OR AN EXPLANATION<br> HELPPPPPPPPPPPP

Natali5045456 [20]

Answer:

x=3

Step-by-step explanation:

x^2 = 6x - 9

Subtract 6x from each side

x^2 -6x = -9

Add 9 to each side

x^2 -6x+9 = 0

Factor

what 2 numbers multiply to 9 and add to -6

-3*-3 = 9

-3+-3 =-6

(x-3)(x-3) = 0

Using the zero product property

x-3 =0 x-3=0

x=3 with multiplicity 2

4 0

3 years ago

HELP PLEASE!!!!!!!!!!!!!!!!!!!!!!!!!!

Vsevolod [243]

Answer:

B or 137.5. :)

7 0

3 years ago

Read 2 more answers

PLEASE HELP ME ASAP :)

lidiya [134]

Answer:

C. 74 sqft

Step-by-step explanation:

The bottom has a surface area of 4ft * 5ft = 20sqft

Theres two 3ft x 5ft sides and two 3ft x 4ft ones.

2 * 3ft * 5ft + 2 * 3ft * 4ft = 2 * 15sqft + 2 * 12sqft = 30sqft + 24sqft = 54sqft

Total surface of the outside is thus

20sqft + 54sqft = 74sqft

3 0

3 years ago

On a map of North Carolina, 27 centimeters represents 18 miles. Based on the map, what equation would calculate the number of mi

ioda

Let y represent number of miles between the two cities and x represent number of cm between both cities.

We have been given that on a map of North Carolina, 27 centimeters represents 18 miles. We are asked to determine the equation that would calculate the number of miles between the two cities, y, when they measure x centimeters apart.

We will use proportions to solve our given problem.

$\frac{\text{Number of miles between two cities}}{\text{Number of cm between two cities}}=\frac{18}{27}$

Upon substituting our given values in above equation, we will get:

$\frac{y}{x}=\frac{18}{27}$

$\frac{y}{x}=\frac{2}{3}$

Now we will multiply both sides by x.

$\frac{y}{x}\cdot x=\frac{2}{3}\cdot x$

$y=\frac{2}{3}\cdot x$

Therefore, our required equation would be $y=\frac{2}{3}\cdot x$ and 1st option is correct choice.

8 0

3 years ago

Help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Roman55 [17]

Answer:

Answer =C

Step-by-step explanation:

F= 9

So teh answer is 9

6 0

3 years ago