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Find the possible value or values of y in the quadratic equation 4 – 4y – y 2 = 0.
Weegy: 8y. 2(4y) = 8y User: Find the possible value or values of y in the quadratic equation 4–4y–y2=0. Weegy: 1 User: Find the possible value or values of r in the quadratic equation r 2–7r–8=0. (More)
Question
Expert Answered
Updated 7/25/2013 2:47:55 AM
1 Answer/Comment
babkat13, when answering math questions, it is important to show the solutions to your answer or at least provide a source to where you got your answer from.
You can use math websites like
webmath.com or wolframalpha.com
Added 7/25/2013 2:47:55 AM
Find the possible value or values of r in the quadratic equation r2–7r–8=0. User: Find the possible value or values of z in the quadratic equation z2–4z+4=0.
Weegy: z^2 - 4z + 4 = 0 Factor to get: (z-2)(z-2) = 0 Since the product is zero, one of the factors must be zero: z-2 = 0 Therefore z = 2 Source: (More)
Question
Expert Answered
Asked 7/25/2013 12:21:19 AM
0 Answers/Comments
The width of a rectangle is 3 inches less than its length. The area of the rectangle is 340 square inches. What are the length and width of the rectangle?
Weegy: The width of a rectangle is 3 inches less than its length. The area of the rectangle is 340 square inches. What are the length and width of the rectangle? The answer is length = 20 inches, width = 17 inches. [ ] User: The hypotenuse of a right triangle is 26 feet long. One leg of the triangle is 14 feet longer than the other leg. Find the lengths of the legs of the triangle. (More)
Question
Expert Answered
Asked 7/25/2013 12:36:45 AM
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What is the discriminant in the quadratic equation x2+11x+121=x+96? User: Use the discriminant to determine how many real number solutions the quadratic equation –4j2+3j–28=0 has.
Question
Not Answered
Updated 7/5/2014 4:31:49 PM
2 Answers/Comments
x^2 + 11x + 121 = x + 96;

x^2 + 11x - x + 121 - 96 = 0

x^2 + 10x + 25 = 0

Discriminant:
b^2 - 4ac
10^2 - 4(1)(25) = 100 - 100 = 0
Added 7/5/2014 4:29:01 PM
This answer has been confirmed as correct, not copied, and helpful.
–4j^2 + 3j – 28 = 0;
Discriminant:
b^2 - 4ac
3^2 - 4(-4)(-28) = 9 - 448 = -439

Number of solutions: No real solutions.
Added 7/5/2014 4:31:49 PM
This answer has been confirmed as correct, not copied, and helpful.
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