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3 years ago

How do you determine the quadratic equation having roots that are real numbers and equal

Mathematics

1 answer:

gregori [183]3 years ago

7 0

Answer:

When discriminant = 0

Step-by-step explanation:

Topic: Quadratic Inequalities

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Rainbow [258]

Answer:

The tap drains approximately half the water from the tank in 15 minutes

The tank initially has 50 gallons of water

Step-by-step explanation:

The tap drains approximately half the water from the tank in 15 minutes. True.

This is true because see that the point (15,25) lies on the graph of the line.

Which means after 15 minutes the amount of water left in the tank is 25 gallons and 25 is half of 50.

The tap drains exactly one gallon from the tank every minute. False

This is false because the slope of the graph is $m=\frac{50-25}{0-15}=-\frac{5}{3}$

The tank initially has 30 gallons of water. False.

The y-intercept is the initial gallons of water which is 50.

The tank initially has 50 gallons of water. True.

The y-intercept is the initial gallons of water which is 50.

The tank takes 50 minutes to drain completely. False.

It is false because the x-intercept tells us the tank is drained completely and it is not 50 minutes but rather 30 minutes.

4 0

3 years ago

Calculate the area of the square shown on the xy-plane in the diagram. Your answer

nikdorinn [45]

Answer: 50

Find the area of the triangles then multiply by 2.

1/2 x 5 x 10 = 25

25 x 2 = 50

6 0

3 years ago

The table shows the number of candies packed by Machine C. The equation shows the number of candies packed by Machine D. In both

Rashid [163]

Machine C makes 75 candies per minute.

Machine D makes 130 candies per minute.

Difference is 55

55 * 11 minutes = 605 candies.

4 0

3 years ago

Read 2 more answers

A baseball is thrown into the air from a height of 5 feet. The ball reaches a maximum height of 43.5 feet and spends a total of

xeze [42]

Answer:

h(t) = -16t^2 + 49.64t + 5

Step-by-step explanation:

The above choice is the only one that makes the height function be a downward-opening parabola and gives h(0) = 5, the initial height of the baseball.

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Any function starting with 16t^2 will not have any positive x-intercepts.

8 0

4 years ago

Can someone please help?!!!

Nuetrik [128]

The perimeter of a rectangle is P=2l+2w where l is the length and w is the width.

Plug in values of l and w in:

P=2(x+8)+2(x-1)

P=2x+16+2x-2

P=4x+14

So the perimeter of the rectangle is 4x+14 units

Hope this helped!

3 0

3 years ago

How do you determine the quadratic equation having roots that are real numbers and equal​

How do you determine the quadratic equation having roots that are real numbers and equal