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Kryger [21]
3 years ago
14

Complete the square for 5x^2-30x=5

Mathematics
2 answers:
xxMikexx [17]3 years ago
8 0

Answer: (x-3)^2=10

Step-by-step explanation:

Nikitich [7]3 years ago
3 0

Solve for x over the real numbers: by completing the square:

5 x^2 - 30 x = 5

Divide both sides by 5:

x^2 - 6 x = 1

Add 9 to both sides:

x^2 - 6 x + 9 = 10

Write the left hand side as a square:

(x - 3)^2 = 10

Take the square root of both sides:

x - 3 = sqrt(10) or x - 3 = -sqrt(10)

Add 3 to both sides:

x = 3 + sqrt(10) or x - 3 = -sqrt(10)

Add 3 to both sides:

Answer: | x = 3 + sqrt(10) or x = 3 - sqrt(10)

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Three fifths of the members of a hiking club went on the last hiking trip. If 39 people went on the trip , how many are in the c
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Step-by-step explanation:

1. Since 39 is 3/5 of the club, divide by 3 to get 1/5 of the club

2. 1/5 of the club is 13 people

3. Multiply 13 by 5 to get 5/5 of the club (which is the whole club)

4. The whole club is 65 people

5. You can check it because 65×3/5=39

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Which of the following is an institution that functions much like a business, but does not operate for the purpose of generating
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Given cos 0 = 1/6 and angle 0 is in Quadrant IV, what is the exact value of sin 0 in
Vinil7 [7]

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4 0
2 years ago
Members of video game platform X-
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Answer:

When number of games downloaded is at least 3

Step-by-step explanation:

Let x = number of games downloaded

Members = 50 + 2x

Non members = 20x

50 + 2x = 20x

50 = 20x - 2x

50 = 18x

x = 50/18

x = 2.78

At x = 2.78, both members and non members are paying the same amount

For members to make profits, the value of x must be greater than 2.78

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= 60

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2 years ago
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