Which value must be added to the expressionx2+16x to make it a perfect-square trinomial?

Answers

Answer 1

Answer:

Step-by-step explanation:

Please write  x^2+16x  or  x²+16x  to indicate the exponentiation.

To rewrite  x²+16x  as a perfect square trinomial:

1) Take half of the coefficient of x, that is, half of 16, which is 8

2) Square this result:  8² or 64

3) Starting with x²+16x again, add 64 and then subtract 64 to get a trinomial expression equivalent to x²+16x:

x²+16x + 64 - 64

4) Rewrite the first three terms as the square of the binomial x + 8:

(x + 8)² - 64  

Here (x + 8)² is a perfect square trinomial.

Answer 2

Answer:

The answer is C.) 64 on edge.


Related Questions

hey guys can you answer this one question real quick

Answers

Answer:

a. 1/5

b. (3, 3/5)

c. 1/5x = y

Step-by-step explanation:

Remember: (x, y)

0.5 = 1/2

(1/2, 1/10) = 1/10 ÷ 1/2 = 1/10 • 2 = 1/5, you can divide y/x = constant of proportionality. 1/10 ÷ 1/2.

1 2/5 = 7/5

(7, 7/5) = 7/5 ÷ 7 = 7/5 • 1/7 = 1/5, y/x = constant of proportionality. 7/5 ÷ 7.

a. 1/5 is the constant of proportionalityb. (3, 3/5) because 3/5 ÷ 3 or 3/5 • 1/3 = 1/5.c. 1/5x = y

Filling up a tank of gas costs $36.96. If the tank holds 16.5 gallons of gas, then how much d
each gallon cost?

Answers

Answer:

$2.24 per Gallon

Step-by-step explanation:

36.96 divided by 16.5 is 2.24, then to check that multiple 2.24 by 16.5 and you get the total cost of 36.96. Hope this helps.

how do you solve u = 3a/2 solving for a

Answers

Answer:

Step-by-step explanation:

a=2a/3. ✌️

The answer that I got is 2a/3

Solve the equation given
x = - 4.
5 = x + 9

Answers

Answer:

x=-4

Step-by-step explanation:

You wrote the answer in the question, so there is really no question.

How it helps :)

Lincoln Cook has a check for $295.50 and a check for $6.25. He also has a $10.00 bill
He would like to receive $5.00 in cash and deposit the rest of the money in his say-
ings account. What is the total deposit?

Answers

Step-by-step explanation:

First, we need to add all the checks and money he has.

295.50

 10.00

   6.25

+________

  3   6  1  . 7 5

Total- $361.75

Now, we have to subtract 5 from this.

361.75

   5.00

-______

3 5 6 . 7 5

The total deposit is $356.75

Answer:

$306.75 is the right answer i just took the test.

Step-by-step explanation:

Help THIS IS DUE IN LESS THAN A HOUR

Answers

Take that back, please delete this question.

Answer:

i beleive its b or d

Step-by-step explanation:

mostly b

15 points!
What is the correct answer for Claire's problem? Explain where she went wrong.

Answers

Answer:

it would be y=50+25x

Step-by-step explanation:

There is an extra $25 per room, and since we dont know how many rooms she has cleaned, we can use x to represent that amount. So for x amount of rooms, it will be an extra $25

Help please
And thank you so much

Answers

Answer:

$0.1 /lb.

Step-by-step explanation:

First, divide 1.99 by 19. You get 0.1047368421. To round it to the nearest hundred, look to the number 3 points away from the decimal, which is number 4. Since it is not 5 or greater, we round it down, and it would round down to 0.1.

In the past month, Ashley rented 3 video games and 1 DVD. The rental price for each video game was $2.70. The rental price for the
DVD was $3.30. What is the total amount that Ashley spent on video game and DVD rentals in the past month?

Answers

Answer:

$11. 40

Step-by-step explanation:

(3×2.70)+3.30=8.10+3.30=$11.40

Answer:

11.40 dollars

Step-by-step explanation:

(2.70*3)+(3.30*1)=

8.10+3.30=

$11.40

320÷b∙20 and 320÷(b∙20) for b=4

Answers

Answer:

Step-by-4vttbrbwtetbb4tbtb44tny4ny4nyn4tbryn4y

step explanation:

#6 What integers describes overdrawing your bank account by $50?​

Answers

Answer:

-50

Step-by-step explanation:

A negitive number would mean debt or owed. A positive number would be a credit of a number.

Find the equation of the line that passes through (2,8) and (6,48)

Answers

Answer: m = 10

.........................

You are going on a field trip and need to choose where to go, The zoo charges a $100 fee plus $10 per student. The museum charges $200 plus $5 per student. How many students have to go on the trip to make the museum a better deal

Answers

Answer:

21 kids have to go on the trip to make the museum a better deal

Step-by-step explanation:

Zoo: y=10x+100

Museum: y=5x+200

10x+100=5x+200

5x=100

x=20

When 20 kids go on trip the costs will be the same. Therefore, once 21 kids go the museum will be cheaper then the zoo as it is increasing at a rate of 5 dollars

solve.
5-(x-6)=-7+3(-x+2)

Answers

Answer:

x=-6

Step-by-step explanation:

For this equation, when we remove the parenthesis, we get 5-x+6=-7+-3x+6.

Then we simplify both sides of the equation, so we get 11-x=-1-3x. When we separate the numbers and variables, we get -12=-2x. -12/2 = -6.

5-x+6=-7-3x+6
combine like terma
11-x=-1-3x
add 3x to both sides
11+2x=-1
subtract 11 from both sides
2x=-12
x=-6

25-2z-10z=-3(4z+8)-1
solve and how many solutions ?

Answers

distribute first
25-2z-10z=-12z-24-1
combine like terms
25-12z=-12z-25
add 12z to both sides
25=-25
no solution because the right side has a negative

Answer:

No Solutions

Step-by-step explanation:

Step 1:

25 - 2z - 10z = - 3 ( 4z + 8 ) - 1       Equation/Given

Step 2:

25 - 12z = - 12z - 25        Combine Like Terms/Multiply

Step 3:

25 = - 25       Add 12z on both sides

Answer:

No Solutions

Hope This Helps :)

Please PLEASE help with these two math problems

1. 7^x ÷ 7^y =
2. z^10x^y ÷ z^5 =

Answers

Answer:

14

-25/1

Step-by-step explanation:

What is the pyhtagoream thereom and how can you use it to slove right triangles

Answers

Answer:

Pythagorean Theorem: a² + b² = c²

Step-by-step explanation:

a is one leg of the right triangle.

b is another left of the right triangle.

c is the hypotenuse of the right triangle.

We use the Pythagorean Theorem to help us solve for missing side lengths of a right triangle.

Solve [X + 8) = 5
With steps

Answers

Answer:

X=(-3)

Step-by-step explanation:

1.Subtract 8 from both sides of the equation.-(x+0)=5-8-the 0 is there because the 8 on the left side is canceled out.

2.5-8 is all you have to look at.-when you look at this you know that it will be negative because 8 is on the right of the minus sign and it is greater than 5.

3.Use a calculator or you fingers to find answer.-(4,3,2,1,0,-1,-2,-3)

HOPE THIS HELPS!!!

.4 ÷ 28.08 Dividing Decimals , Divide to the nearest Tenth??
I Will Give You 10 Points

Answers

Answer:

0

Step-by-step explanation:

The answer is 0.01424, but if you round it to the nearest tenth, you would end up with 0.

What strategy would be the best to solve this problem? Ann-Marie bought apples. She kept one-third for herself and gave the rest to 4 friends. Each friend got 2 apples. How many apples did Ann-Marie buy? A. guess, check and revise B. work backwards C. use a formula D. look for patterns

Answers

Answer:

D. Look for patterns

Step-by-step explanation:

To solve :

Assume number of apples bought = x

Fraction kept = 1/3 of x

Fraction shared = (x - x/3) = (3x - x) /3 = 2x/3

Number of people who shared (2x/3) = 4 with each getting 2

Total number shared = 4 * 2 = 8

Fraction shared = total shared

2x/3 = 8

Multiply both sides by 3

(2x/3) * 3 = 8 * 3

2x = 24

x = 12

Hence, Anne-Marie purchased 12 apples

1/3 kilograms 2/3 what is the unit rate

Answers

Idk I download this app so other ppl can help me

What is the y intercept of this graph?. What is the slope?

Answers

Answer:

y intercept is -3

slope is 4

y=4x-3

Step-by-step explanation:

Why does the base matter when simplifying negative exponents?

Answers

Answer:

A negative exponent just means that the base is on the wrong side of the fraction line, so you need to flip the base to the other side. For instance, "x–2" (pronounced as "ecks to the minus two") just means "x2, but underneath, as in 1 x 2 \frac{1}{x^2} x21 ".

Step-by-step explanation:

Whats the slope if this line??

Answers

Answer:

-1/4

Step-by-step explanation:

because its going up one over 4 and the lines negative!

Answer:

-1/4

Step-by-step explanation:

The slope is going down towards the right so it's negative. Rise-1 and you Run-4 so the answer is -1/4. Hope this helps :)

What is the value of the expression (x – 2y) (x + 2y) when x= 4 and y=1/2

Answers

Answer:

15

Step-by-step explanation:

First you would plug in the 4 and 1/2 in the x and y's places, making the expression (4 - 2 (1/2))*(4 + 2 (1/2). Then you solve (below).

(4 - 2 (1/2))*(4 + 2 (1/2)

(4 - 1)*(4 + 1)

(3)*(5)

15

Hope this helped! If you have any questions, feel free to message me :)


P(5. - 5), y=3x+3
Write an equation for the line in point-slope form

Answers

Answer:

M= 3

Step-by-step explanation:

l2ecdnienofnweucon fuovnewdionsdv wqueijncqodi

Answer:

y+5 =3(x-5)

Step-by-step explanation:

The point slope form of an equation is : y-y₁ = m(x-x₁)

Given in the question ;

x₁= 5

y₁ = -5

y= 3x+3 where m=3

The equation is :

y-y₁ = m(x-x₁)

y--5 =3(x-5)

y+5 =3(x-5) ----equation of the line in point-slope form.

A student worked out an equation and below is his solution. is the answer correct? If not, where was the error and what is the correct answer?
-4(6-r)=12
-24-4R=12
-4R=36
R=-9

Answers

Answer:

His answer is wrong.

Step-by-step explanation:

-4(6-R)=12  <-- Since R is negative, -4 times -R results in a positive so, 4R.

-24+4R=12

+24       +24

--------------------

4R = 36

R= 9

Twice a number increased by 4 is at least 10 more than the number

Answers

Answer:

the twice as number increased by 4 is at least 10 more than a number .

2x + 4 ≥ x + 10

x ≥ 6

Step-by-step explanation:

Mark Brainliest

Answer:

2n+4 >= 10 + n

Step-by-step explanation:

solve for n , but remember the rules of dealing with inaqualities

Help it’s homework!!!!

Answers

Answer:

(3x - 3)(x + 2)

Step-by-step explanation:

3x^2 + 3x - 6

(3x^2 + 6x)(-3x - 6)

3x(x + 2) -3(x + 2)

(3x - 3)(x + 2)

Please help I need to get this answered!

Answers

Answer:

4  1/9

Step-by-step explanation:

so if we make the fraction the same having 7 4/9 and 3 1/3

we would then make 1/3 into 3/9 (its the smae thing not simplified)

subtract 7-3=4

4-3=1

and then simplify the fraction

The exact form would be 37/9
But in mixed number form, it would be 4 1/9
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