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coldgirl [10]
3 years ago
10

Ben says this system of equations has one solution. Is he​ correct? Explain. Choose the correct answer below. A. Ben is correct.

Since the equations have the same​ slope, the system has exactly one solution. B. Ben is correct. Since the equations have the same slope and different​ y-intercepts, the system has exactly one solution. C. Ben is incorrect. Since the equations have the same slope and different​ y-intercepts, the system has no solution. D. Ben is incorrect. Since the equations have the same​ slope, the system has infinitely many solutions.
Mathematics
1 answer:
Murrr4er [49]3 years ago
5 0

Answer:

C. Ben is incorrect. Since the equations have the same slope and different y-intercepts, the system has no solution

Step-by-step explanation:

From the given options the parameters of the equations are;

The slope of the equations are the same

The y-intercept of the equations are different

Therefore, the lines of the two equations ae parallel and there are no points of intersection of the two equations and therefore no solutions

The best correct option is therefore option C.;

C. Ben is incorrect. Since the equations have the same slope and different y-intercepts, the system has no solution.

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Answer:

1. m = 65°

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2. x = 40°

Step-by-step explanation:

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180 - 50 = 130 (Total degree for both m and 2x - 5)

130 ÷ 2 = 65 (m and 2x - 5 angle degrees)

65 - 5 = 60 (2x)

2 x = 60°

x = 60 ÷ 2 = 30°

2. I forgot the parallel rule for question 2, but I think X and 40° is parallel to each other?

8 0
4 years ago
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Nataly_w [17]

Answer:

  1)  6 1/2

Step-by-step explanation:

Put 3 1/4 where "a" is and do the arithmetic.

  2(3 1/4) = 2·3 + 2·(1/4) = 6 2/4 = 6 1/2

4 0
4 years ago
Is it proportional or nonproportional
azamat

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6 0
3 years ago
A company that manufactures racing boats estimates that the profit for selling its brand is given by the following equation.
disa [49]

Answer:

b = 10

Step-by-step explanation:

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This equation shows the income obtained based on the number of boats sold. We want to know the minimum number of boats that must be sold to obtain $ 75 000.

Then we must equalize the equation to 75 000 and clear b.

3 solutions will be obtained (because it is a polynomial of degree 3), and the lowest value will be taken.

P(b) = 75000

-25b^3 + 750b^2 + 2500b = 75000

Now we need to solve the equation, for that we seek to factor the polynomial

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Finally the solutions are:

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b = 10 and b = -10

We take the least positive solution (because you can not produce -10 boats)

Finally b = 10

The smallest number of boats that must be produced to make a profit of $ 75,000 is 10 boats.

4 0
3 years ago
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