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Alexus [3.1K]
3 years ago
13

X^2-6x=7 completing the square

Mathematics
1 answer:
kozerog [31]3 years ago
3 0

Answer:

x = 7, -1

Step-by-step explanation:

Use the formula (b/2)^2 in order to create a new term. Solve for x by using this term to complete the square.

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Which of the expressions are equivalent to the one below? Check all that
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Answer:

Only B,

Step-by-step explanation:

Because it is all addition it does not mater what order they are in,..

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A number is chosen at random from 1 to 25. Find the probability of selecting an odd number or multiples of 5. *
Ymorist [56]

Answer:

Odd number: 13/25 (52%)

Multiples of 5: 5/25 (20%)

Step-by-step explanation:

There are 13 odd numbers between 1 and 25 so you have a 13/25 chance which is 52% (13/25 = 0.52). There are 5 multiples of 2 between 1 and 25 so you have a 5/25 chance which is 20% (5/25 = 0.2).

8 0
3 years ago
the total cost of 8 pens and 9 books is $30.05. if the cost of a pen is $a, and a book is .90 MORE expensive. find A. Give your
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Answer:

2 Answers By Expert Tutors ... Let's set x = cost of books and y = cost of pens. ... In algebra, this can be written as x + y = 18. ... Using x and y, we get 1 book and 2 pens costs $21, or x + 2y = 21 ... The pen must cost $3 because we are adding $3 to the total when we ... Please provide a valid phone number.

Step-by-step explanation:

5 0
3 years ago
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What number is 21% of 450?
Akimi4 [234]

Answer:

94.5

Step-by-step explanation:

450 / 100 = 4.5

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3 0
2 years ago
–9(w + 585) = –360 w = ______
vekshin1

Answer:

w = 15

Step-by-step explanation:

-9(w + 585) = -360w

-9w -5265 = -360w

351w = 5265

w=15

3 0
3 years ago
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