Which shows a perfect square trinomial?

1 answer:

4 0

Both (m + n)2 and 36 are perfect squares, and 12(m + n) is twice the product of (m + n) and 6. Since the middle term is positive, the pattern is (a + b)2 = a2 + 2ab + b2. Place the x2 tile, 4 x-tiles and 4 1-tiles in the grid. Fill the outside sections of the grid with x-tiles and 1-tiles that complete the pattern.

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7(n+2)=189 Bar model

emmasim [6.3K]

Answer:25

Step-by-step explanation:

First u divide 189 by 7

Than u minus that by 2 and u got ur answer

5 0

3 years ago

What equation passes through (0,5) and (-4,-1)

kogti [31]

Answer: y = 3/2x + 5

Step-by-step explanation:

Find the slope/gradient:

$\frac{-1-5}{-4-0} = \frac{-6}{-4} = \frac{3}{2}$

Plug in a point to the equation:

$5 = \frac{3}{2}(0) + b$

Solve for b:

$5 = b$

New equation:

$y = \frac{3}{2}x + 5$

7 0

3 years ago

Consider the quadratic equation x2 − 6x = 16.

e-lub [12.9K]

Answer:

C) (x − 3)2 = 25
C) Factor out 4 from 4x2 + 40x.

Step-by-step explanation:

1. Adding the square of half the x-coefficient to both sides of the equation will "complete the square." That square is 9, so the result on the right is 16+9 = 25. Only selection C matches.

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2. To complete the square, you want to be able to put the quadratic into the form a(x -h)^2 = -k. For the purpose, it is most convenient to first factor "a" from the given quadratic. Then you can determine "-h" to be half the x-coefficient inside the parentheses.

Here, that looks like ...

4(x² +10x) = 80 . . . . . . . . . . step 1: factor out 4

4(x² +10x +25) = 180 . . . . . add 25 inside parentheses and the same number (4·25) on the right side of the equation

4(x +5)² = 180 . . . . . . . . . . . written as a square

8 0

3 years ago

Will give brainliest

Vesnalui [34]

Answer:

1/5... 1 on top 5 on bottom

Step-by-step explanation:

sub in the values: