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coldgirl [10]
3 years ago
9

Which equation has an infinite number of solutions?

Mathematics
2 answers:
Ivahew [28]3 years ago
8 0
I would say B how that helped
poizon [28]3 years ago
8 0

Answer:

b

Step-by-step explanation:

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After a baseball is hit, the height h (in feet) of the ball above the ground t seconds after it is hit can be approximated by th
lubasha [3.4K]

Answer:

The ball will take 4.05 seconds to hit the ground.

Step-by-step explanation:

we have

h=-16t^{2}+64t+3

This is a quadratic equation (vertical parabola) open down

The vertex is a maximum

we know that

The ball hit the ground when h=0

Solve the quadratic equation

For h=0

-16t^{2}+64t+3=0

The formula to solve a quadratic equation of the form

at^{2} +bt+c=0 is equal to

t=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}

in this problem we have

-16t^{2}+64t+3=0  

so

a=-16\\b=64\\c=3

substitute in the formula  

t=\frac{-64(+/-)\sqrt{64^{2}-4(-16)(3)}} {2(-16)}

t=\frac{-64(+/-)\sqrt{4,288}} {-32}

t=\frac{64(-)\sqrt{4,288}} {32}=-0.05\ sec  ---> the time cannot be a negative number

t=\frac{64(+)\sqrt{4,288}} {32}=4.05\ sec

therefore

The ball will take 4.05 seconds to hit the ground.

4 0
3 years ago
HURRY I NEED HELPP IT DUE IN A FEW MINS
grandymaker [24]

Answer:

4 1/2 cups of flour, 2 1/4 cups of sugar, 1 cup of brown sugar

Step-by-step explanation:

1 1/2 cups flour:3/4 cup of white sugar:1/3brown sugar yields 6 servings. So multiply each amount in the ratio by 3 for 18 servings

6 0
3 years ago
How do you algebraically solve for equilibrium using supply and demand equations?
sweet [91]

Answer:

How do you find the equilibrium price with a supply and demand function?

To determine the equilibrium price, do the following.

Set quantity demanded equal to quantity supplied:

Add 50P to both sides of the equation. You get.

Add 100 to both sides of the equation. You get.

Divide both sides of the equation by 200. You get P equals $2.00 per box. This is the equilibrium price.

6 0
3 years ago
Read 2 more answers
If 1/4 of x is 1/5, what is x
mamaluj [8]

Answer:

4/5

Step-by-step explanation:

if 1/4 of x is 1/5 that means there is 4 sets of 1/5

so 4*1/5= 4/5

your answer is 4/5

3 0
3 years ago
Read 2 more answers
A birdhouse and the pole that it is on cast a shadow 15 feet long. If a person standing nearby casts a shadow 5 feet long, and t
Viefleur [7K]
Answer:
12
Step-by-step explanation:
15 feet total amount combined by pole and
birdhouse
4 foot tall person makes 5 feet long
shadow
5×3=15
4x3=12 so the birdhouse and pole are 12
feet
THANKS!
6 0
3 years ago
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