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Diano4ka-milaya [45]
2 years ago
10

Need help with this

Mathematics
1 answer:
pishuonlain [190]2 years ago
7 0

infinetly many because

for example if 5=5 on a graph. both lines would always touch

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Evaluate the discriminant of each equation. Tell how many solutions each equation has and whether the solutions are real or imag
Elena L [17]
All these equations are in the form of ax^2 + bx + c = 0, where a, b, and c are some numbers. the discriminants of equations like this are equal to b^2 - 4ac. if the discriminant is negative, there are two imaginary solutions. if the discriminant is positive, there are two real solutions. if the discriminant is 0, there is one real solution.

<span>x^2 + 4x + 5 = 0
</span>b^2 - 4ac
4^2 - 4(1)(5)
16-20
-4, two imaginary solutions.

<span>x^2 - 4x - 5 = 0
</span>b^2 - 4ac
(-4)^2 - 4(1)(-5)
16 + 20
36, two real solutions.

<span>4x^2 + 20x + 25 = 0
</span>b^2 - 4ac
20^2 - 4(4)(25)
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0, one real solution.
6 0
3 years ago
What is the slope of the line through the points (-3,3) and (6,-8)
STatiana [176]

Answer:

\displaystyle \frac{-11}{9}

Step-by-step explanation:

       We will use the equation of change in y over change in x to solve for the slope of the line. Then, we will simplify.

\displaystyle \frac{y_{2}-y_1 }{x_2-x_1}

\displaystyle \frac{-8-3}{6--3}

\displaystyle \frac{-8-3}{6+3}

\displaystyle \frac{-11}{9}

8 0
2 years ago
Set up and solve a system of equations to solve the problem.
Butoxors [25]

Answer:

The first Gym when he joins we will have to pay 60 dollars and in a 30 witch cost 90 dollers. but the second gym cost 50 $ per month so the first gym in a year he will pay 450$ and the second one 600 so the first one is cheeper.

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Who is right and why are they right?
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Its positive for the supermarkets oweners
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2 years ago
What are the values of x and y?
lesantik [10]
Please help me out owo

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3 years ago
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