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2 years ago

Solve using the quadratic formula. 5v2 − 7v − 7 = 0

Mathematics

1 answer:

dimulka [17.4K]2 years ago

8 0

Answer:

Move everything so all terms are on one side of the = sign, and solve for zero using the Quadratic Formula. There are two answers: v=7±√69

Step-by-step explanation:

Subtract 1 from both sides so you have

e "standard form" of a quadratic is

, so first we have to identify a, b, and c in your equation: a=5, b= -7, and c= -1.

The quadratic formula is

. Plugging in your values, we get

−

. It looks a little funny, but you can't simplify it any more. You can check the answer by graphing the function on your calculator and asking for the function value at these points.

After graphing, hit 2nd, "Calc", "Value" on your TI, and type in either

, and you'll get that

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3 years ago

The lengths of the sides of a triangle are given below. Classify the triangle as acute, obtuse, or right.

abruzzese [7]

Answer:

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Step-by-step explanation:

Lets verify with Pythagorean:

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3 years ago

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2 years ago

Combine like terms. x^2y-3xy^2-6x^2y

balu736 [363]

The result after combining like terms is: $-5x^2y-3xy^2$

Step-by-step explanation:

Given expression is:

$x^2y-3xy^2-6x^2y$

The like terms are those terms with whom the variable or product of variables is same.

As in the given expression, first and third, both terms have x^2y so both terms are like terms

Combining like terms, means the indicated operation is performed on them

So,

Combining like terms:

$x^2y-6x^2y-3xy^2\\= -5x^2y-3xy^2$

Hence,

The result after combining like terms is: $-5x^2y-3xy^2$

Keywords: Expressions, polynomials

Learn more about polynomials at:

#LearnwithBrainly

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Step-by-step explanation:

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4 years ago

Read 2 more answers