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lidiya [134]
3 years ago
6

Which value must be added to the expression x2 + 12x to make it a perfect-square trinomial?

Mathematics
2 answers:
stellarik [79]3 years ago
8 0

Answer:

D) 81

Step-by-step explanation:

Alexxx [7]3 years ago
7 0

Answer:36

When you factor X^2+12x+36 you get a perfect square trinomial which is (x+6)^2

Hope this helps!

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Solve x∕4 + y∕3 = 1 for x.
VladimirAG [237]

Answer:

D)x = 4∕3y – 4

Step-by-step explanation:

\frac{x}{4}  +  \frac{y}{3}  = 1

3x + 4y = 12

3x = 12 - 4y

x = 4 -  \frac{4}{3} y

x = 4 -  \frac{4}{3} y

7 0
3 years ago
Which table represents a linear function that has a slope of 5 and a y-intercept of 20?
erastovalidia [21]

Answer:

The first image.

x |  y

-4 | 0

0 | 20  <--- When x = 0, the y value is the y-intercept.

4 | 40

8 | 60

Step-by-step explanation:

To check the slope, we can use the equation (y₂ - y₁) ÷ (x₂ - x₁) using any two pairs given. For this example, I'll use (-4, 0) and (4, 40).

                                                              x₂  y₂         x₁   y₁

(0 - 40) ÷ (-4 - 4)

(-40) ÷ (-8)

<u>Slope = 5</u>

<u></u>

~Hope this helps!~

8 0
3 years ago
Read 2 more answers
Which represents the inverse of the function f(x)=4x
liraira [26]
The answer will be F^-1= x/4
5 0
3 years ago
I don't understand the question.​
enot [183]

Answer:

The question is asking which combinations of 2x^2-4x+1 make different types of equations. y=2x^2 makes a quadratic equation, y=-4x+1 makes a linear equation, and y=1 makes a horizontal line

8 0
3 years ago
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Mr. Blackburn is buying new carpet for his family room and hallway. The floor plan is shown below.
larisa86 [58]

Answer:

Step-by-step explanation:

3.2 times 1.5  plus 6 times4.2= 30 meters of carpet.

4 0
3 years ago
Read 2 more answers
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