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HW Quadratic Formula & Discriminant

Last updated over 2 years ago
12 questions
1

Solve using the Quadratic Formula:
Separate your answers with a comma.

1

Solve using the Quadratic Formula:
Type your answers as two parts with ± in between.

1

Solve using the Quadratic Formula:
Separate your answers with a comma.

1

Solve using the Quadratic Formula:
Type your answers as two parts with ± in between.

1

Solve using the Quadratic Formula:
Type your answers as two parts with ± in between.

1

Solve using the Quadratic Formula:
Type your answers as two parts with ± in between.

1

Use the discriminant to determine how many solutions this equation has:

Two real solutions, One real solution, or Two imaginary solutions

You must upload work where it asks you to or you will not get credit for that question!
1

Use the discriminant to determine how many solutions this equation has:

Two real solutions, One real solution, or Two imaginary solutions

1

Use the discriminant to determine how many solutions this equation has:

Two real solutions, One real solution, or Two imaginary solutions

#throwback because you have a test Nov 3rd/4th:

Use this information to answer #10-12.
Elijah was hiking up to the top of Torrey Pines Nature Reserve and saw Will below on the beach. Will really needed some sunscreen, so Elijah threw him a bottle of sunscreen from the top of the hill. The path of the sunscreen can be represented by the function: h\left(t\right)=-16t^{2}+80t+400 where h is height in feet and t is time in seconds.
1

How tall was the hill that Elijah threw the sunscreen from?

1

What was the sunscreen's maximum height after Elijah threw it?
Remember x=-b/2a

1

Will dove for the sunscreen but missed it!! How long did it take for the sunscreen to hit the ground?
Hint: use quadratic formula to solve!
Round your answer to the nearest hundredth.