All High School Math Resources
Example Questions
Example Question #341 : Algebra Ii
Solve using the quadratic formula:
Possible Answers:
Correct answer:
Explanation:
Use the quadratic formula to solve:
Example Question #91 : Intermediate Single Variable Algebra
Solve using the quadratic formula:
Possible Answers:
Correct answer:
Explanation:
Use the quadratic formula to solve:
Example Question #341 : Algebra Ii
Solve using the quadratic formula:
Possible Answers:
Correct answer:
Explanation:
Use the quadratic formula to solve:
Example Question #61 : Quadratic Equations And Inequalities
Solve using the quadratric formula:
Possible Answers:
Correct answer:
Explanation:
Use the quadratic formula to solve:
Example Question #1601 : Algebra Ii
A baseball that is thrown in the air follows a trajectory of
, where is the height of the ball in feet and is the time elapsed in seconds. How long does the ball stay in the air before it hits the ground?
Possible Answers:
Between 2.5 and 3 seconds
Between 4 and 4.5 seconds
Between 2 and 2.5 seconds
Between 3.5 and 4 seconds
Between 3 and 3.5 seconds
Correct answer:
Between 3 and 3.5 seconds
Explanation:
To solve this, we look at the equation
.Setting the equation equal to 0 we get
.Once in this form, we can use the Quadratic Formula to solve for
.The quadratic formula says that if
, then.
Plugging in our values:
Therefore
or and since we are looking only for positive values (because we can't have negative time), 3.4375 seconds is our answer.All High School Math Resources
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