4 years ago

What is the missing constant term in the perfect square that starts with x^2 -20x

Mathematics

1 answer:

lidiya [134]4 years ago

7 0

Answer:

Missing constant: 100

Step-by-step explanation:

perfect square (a - b)^2 = a^2 - 2ab + b^2

In this case

20x = 2 * x * 10

and

10^2 = 100

(x - 10)^2 = x^2 - 20x + 100

You might be interested in

keeping in mind the role the order of precedence plays in equations, what would excel display as the result of the following equ

Alex73 [517]

The answer to youre question is 5.5

8 0

3 years ago

Enter the pair of fractions 6/7 and 13/14 with the smallest common denominator between the two fractions

fredd [130]

Answer:

25/14

Step-by-step explanation:

4 0

3 years ago

During a sale , a shop allows 20%

Dafna1 [17]

Answer:

$24

Step-by-step explanation:

original price of a dress = $30

discount = 20%

discount amount = discount% of original price

=20/100 * 30

=30/5

=$6

price that consumer will pay after discount = $30 - $6

=$24

6 0

3 years ago

Read 2 more answers

Noa drove from the Dead Sea up to Jerusalem, and her altitude increased at a constant rate of 740 meters per hour. When she arri

Serggg [28]

First you will need a piece of paper, well not really. All this problem is involving is 740
+ 710
=1,500 meters

3 0

3 years ago

Read 2 more answers

Which are steps that could be used to solve 0 = 9(x2 + 6x) – 18 by completing the square? Check all that apply.

mihalych1998 [28]

Answer:

A) 18+81=9(x^2+6x+9)

D)11+(x+3)^2

Step-by-step explanation:

To solve this by completing the square, we want to get it to the form of: (x + 3)^2 = 9

There are multiple ways to get there.

First we could divide by 9 to get.

x^2 + 6x = 0

Then, add 9 to both sides to get:

x^2 + 6x + 9 = 9

Factor the left side:

(x + 3)^2 = 9

Now, you can solve this equation by completing the square.

(*I think you have a typo in your answer choices)

Read more on Brainly.com - brainly.com/question/9252180#readmore

4 0

3 years ago