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3 years ago

Complete the square for x^2 + 6x + ? to form a perfect square trinomial

1 answer:

8 0

To complete the square, or finding the c constant of this trinomial to make it factor evenly, use this formula to find the c constant (as according to the quadratic equation ax^2+bx+c):
(b/2)^2

When you plug in the b value, 6, you should get this:
(6/2)^2

Then, when you simplify, you get a result of 9 which would be the missing constant to fill in your trinomial. When you plug it in, you should get this as your final trinomial:

x^2+6x+9

You might be interested in

Find the measure of angle 4 AND...… angle 7

zaharov [31]

Answer:

<4 = 126

<7 = 55

Step-by-step explanation:

Remark

There are only 2 answers to this question. <4 has one of them and <7 has the other one. <7 is acute. <2 is obtuse.

Givens

<2 = 55 degrees

Solution

<4 is the supplement of <2

Therefore <4 + <2 = 180 A straight line has an angle of 180°

<4 + 55 = 180

<4 = 180 - 55

<4 = 125

So <7 is either 55 or 125. Since <7 is acute, it is 55 degrees but we have another way of proving it.

<4 + <6 = 180 degrees Interior angles on the same side of the transversal are supplementary

125 + <6 = 180

<6 = 180 - 125

<6 = 55

<7 =<6 Vertically opposite angles are equal.

<7 = 55 degrees.

4 0

3 years ago

A clothing manufacturer produces 120 garments per hour, of which 5 are damaged. How many garments without damage would the manuf

sp2606 [1]

Answer:

<h2>Step-by-step explanation:</h2>

First we have to found all the clothes that the manufacturer produces in 8 hours,

As given 120 clothes = produce in 1 hour

X clothes = produce in 8 hour

By cross multiplication, we get

X= 120*8

X= 960 total clothes produced in 8 hours

As also given that in each hour 5 clothes damaged ,so we can write as

5 clothes = damaged in 1 hour

Y clothes = Damaged in 8 hour

By cross multiplication we get

Y= 40 clothes damaged in 8 hour

So the total clothes that manufacturer produce with out damage clothe will be ,

Total normal clothes = X-Y = 960 - 40 = 920 clothes

3 0

2 years ago

A line is perpendicular to y=(-1/5)×+1 and intersects the point (-5,1)

svet-max [94.6K]

hope it helps u to get your abswer and me to be ranked as brainliest:)))

6 0

3 years ago

which one of the following examples represents a repeating decimal A. 1.111114 B. 0.777777 C. 4.252525 D. 0.123123

elena-s [515]

Actually, i think something is missing here:

You need either a parenthesis or some dots at the end to determine this. A repeating decimal can have one repreating digit:

0.(7): 0.777777...

two:

0.(45): 0.45454545454545....

or more: so potentially all of them can be repeating, even a!

it could be: 1.(111114)

or: 1.111114111114111114111114111114111114111114111114111114111114111114111114111114...

proably B. is the most typical of repeating decimals (choosed this one if you have to), but in reality, you need more information... did you copy the question exactly?

7 0

3 years ago

Simplify this algebraic expression completely. 10y – 3(y + 5) A. 7y – 15 B. 7y – 5 C. 7y + 2 D. 7y + 5

Kipish [7]

Hey! :)

10y-3(y+5)

Distribute the -3.

-3*y= -3y -3*5= -15

10y-3y-15

7y-15

"A" is the answer.

~'Manda

6 0

3 years ago