How do I solve x^2 - 2x - 63 = 0 by completing the square? Like they showed me how here but I'm not sure how this appiles if there's already a c and it doesn't factor into something that can be perfectly squared.

Answers

Answer 1

Answer: maybe you can try graphing it if the graph does not have any x-intercepts than it has no real roots

Answer 2

Answer: Basically you add a square after the 2x and then another square by the 63. Then, you use (b/2)^2 to put the answer in the square. Take b which is -2 in this case and divide it by 2. (-2/2= -1), then you square your answer (-1^2= 1). so after doing those calcualtions take the 1 that you got and put it in the first square. For the second square you will put the negative of that number which is -1. Then once you multiply the numbers by what is in the square you'll factor it and get your answer. This is really complicated and you may need to watch a video to get it.

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33 is 50% of what number?

Answers

50/100 * x = 33
x = 33 * 100/50
x = 66
so your answer is 66

From a board 8 feet in length,Emmet cut two ,2 and 1 over3-foot bookshelves.how much of the board remained?

Answers

Answer:

5 $(2)/(3)$

Step-by-step explanation:

To get how much of the board remained, we simply subtract the length Emmet cut from the initial length of the board

Initial length of the board = 8

Length cut out = 2 $(1)/(3)$

= $(7)/(3)$

Length of board remained = Initial length of board - Length cut out

= 8 - $(7)/(3)$

= $(24-7)/(3)$

= $(17)/(3)$

= 5 $(2)/(3)$

Therefore the length of the board remained is 5 $(2)/(3)$ feet

2 1/3+2 1/3 =4 2/3
8-4 2/3 is 3 1/3.
3 1/3 is your answer.

Yoshi and Rana serve muffins. There are three muffins with nuts. I/6 of the muffins have nuts. What fraction of the muffins do not have nuts?

Answers

So 6/6 subtract 1/6 is 5/6 and that's the answer

Think about it if you have 3 muffins answer 1/6 of them subtract 6 with 1 then put it over 6. So the answer would be 5/6.

X + y = 8
Let x = 6. What is y?

Answers

Answer:

x+y = 8

If x = 6

6 + y = 8

y = 8-6

y = 2

Hope this helps!

Answer:

y = 2

Step-by-step explanation:

Subtract x from 8

8 - 6 = 2

How do i find the answer to this question?

Answers

Answer is choice D) AC < FH

Think of a door. Imagine tying a string to the handle of the door and to the metal part where the door would touch if the door was closed. The more open the door is, the longer the string would be (if the string is completely taut and there's no slack). This is the hinge theorem in action. The larger the angle, the larger the opposite side.

Applied to this problem, we have angle G larger than angle B, so the respective opposite sides are larger in this order (FH is larger than AC). This theorem only works if we know the other two sides are fixed in length and are equal. If either AB = GH or BC = FG was false, then the hinge theorem would not work here.

the answer is D) AC<FH

I need this explained

Answers

$\text{Hey there!}$

$\text7x}^2\text{- 32x - 60}$

$\text{The answer is: (7x + 10)(x - 6)}$

$\text{Because if you follow the step to the answer (first you have to distribute}$ $\text{then combine the like terms after distributing) after all of that you SHOULD}$ $\text{get the equation back!}$