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3 years ago

Select the polynomial that is a perfect square trinomial.

Mathematics

1 answer:

Alina [70]3 years ago

6 0

Answer:

16x^2 -8x +1

Step-by-step explanation:

The square of a binomial expands as ...

(a +b)^2 = a^2 +2ab +b^2

So, you need to look for a trinomial with first and last terms that are perfect squares and a middle term that is double the product of the roots of those terms.

This pattern matches ...

16x^2 -8x +1 = (4x -1)^2

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Given: x + 2y = -6. Solve for y.

zavuch27 [327]

Answer:

The answer is option 3.

Step-by-step explanation:

The steps are :

$x + 2y = - 6$

$2y = -x - 6$

$y = \frac{ - x - 6}{2}$

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3 years ago

Read 2 more answers

2. Round 459 to the nearest hundred. O 460 450 500 400

KonstantinChe [14]

Answer:

The answer is 500

Step-by-step explanation:

When you round to the hundred, you look at the 10s place. If the 10s place is 5,6,7,8, or 9, you round the hundred up. In this case, it is 459 so you would round up to 500. Have a nice day!!!

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2 years ago

Which figure is described below?

IRINA_888 [86]

Answer:

Option A.

Step-by-step explanation:

Circle contains all points in a plane that are equidistant from a point, i.e., center of the circle.

The locus of points 9 units from the point (-1,3) on the coordinate plane.

It means, the figure represents the set of all points which are 9 units from the point (-1,3).

So, the given describes a circle with of 9 units and center at (-1,3).

Therefore, the correct option is A.

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3 years ago

Write a simplified expression for the length of AC.

Elena L [17]

Answer:

see below

Step-by-step explanation:

Using the segment addition postulate

AB + BC = AC

x+2 + 7x-3 = AC

Combine like terms

8x -1 = AC

Using the segment addition postulate

PQ + QR = PR

8y+5 + QR = 13y+25

Subtract 8y from each side

5 + QR = 13y-8y+25

5 + QR = 5y+25

Subtract 5 from each side

QR = 5y+25-5

QR = 5y+20

3 0

3 years ago

Graph a line through the point (-3, 2) with a slope of -2/5 .

alexira [117]

Answer:

y = $-\frac{2}{5} x$ $-\frac{16}{5}$

Some of the points on the graph are: (0,-3.2),(-8,0),(2,-4), and (-3,-2)

Step-by-step explanation:

https://www.d esmos.com/calculator/jx7d3ews7b

Brainly has been acting up. It won't let us paste links.

So when copying and pasting the link above, remove the space between d and e to get the graph.

Hope that helps!

7 0

3 years ago