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3 years ago

What term should be added to create a perfect square trinomial ??

1 answer:

7 0

Yes you are correct. You take half of the x coefficient 18 to get 9, then you square 9 to get 81

x^2+18x+81 is a perfect square trinomial which factors to (x+9)^2

You might be interested in

Whats the solution of x^2+4x-4=8

denpristay [2]

Answer:

x = 2, x = -6

Step-by-step explanation:

$x^2+4x-4=8$

Subtract 8 from both sides.

$x^2+4x-4-8=8-8$

Simplify.

$x^2+4x-12=0$

Solve with quadratic formula.

a = 1

b = 4

c = -12

I do not have time to show work for quadratic formula parts.

I am so sorry for this inconvenience.

8 0

3 years ago

What value represents the horizontal translation from the graph of the parent function f(x) = x2 to the graph of the function

kirza4 [7]

The negative 4 in the parenthesis caused the graph to move four units to the right.

7 0

3 years ago

Read 2 more answers

To play his game, Charles must distribute 350 tokens, when there are 7 players. How many will he have to distribute for 11 playe

Rzqust [24]

First divide 350 with 7

350/7 = 50.

Each player gets 50 tokens.

Now there are 11 players.

Multiply 50 with 11

50 x 11 = 550

550 tokens are distributed for 11 players

hope this helps

4 0

3 years ago

Read 2 more answers

Please someone help! You have to make this word problem into an inequality.

labwork [276]

Answer:

the theater needs to sell at least 100 tickets

Step-by-step explanation:

wants to make at least $1000 and they already have $50, so you take the $9.50 per ticket and add that to the $50.

$1000=$9.50t+$50

1000/50=9.5t

950=9.5t

950/9.5=t

t=100

4 0

3 years ago

A triangle was dilated by a scale factor of 6. If sin aº

Pavlova-9 [17]

Answer:

24 units

Step-by-step explanation:

A triangle was dilated by a scale factor of 6. If sin a° = four fifths and segment DE measures 30 units, how long is segment EF?

triangle DEF in which angle F is a right angle, angle D measures a degrees, and angle E measures b degrees

15.5 units

24 units

30 units

37.5 units

From the description:

angle D measures a degrees

opposite to angle D is side EF

side DE (which measures 30 units) is the hypotenuse of the triangle.

We also know that

$\sin (a) = \frac{4}{5}$

$\sin (a) = \frac{opposite}{hypotenuse}$

From definition:

$\sin (a) = \frac{opposite}{hypotenuse}$

Replacing:

$\frac{4}{5} =\frac{ EF}{DE} \\\\EF = \frac{4}{5} *DE\\\\EF = \frac{4}{5} *30 \\\\= 24 units$

8 0

3 years ago