A ball is dropped from a treetop 64 feet above the ground. How long does it take to hit the ground? (s = 16t^2)
1 second
2 seconds
3 seconds

A ball is dropped from a treetop 64 feet above the ground. It will take 2 seconds to hit the ground. (s = 16t^2).

s

Question

Asked 4/7/2014 5:05:45 PM

Updated 4/7/2014 10:35:29 PM

1 Answer/Comment

Rating

8

A ball is dropped from a treetop 64 feet above the ground. It will take 2 seconds to hit the ground.

(s = 16t^2).

(s = 16t^2).

Added 4/7/2014 10:35:29 PM

This answer has been confirmed as correct and helpful.

Rated good by DahJTkfw

Which of the following equations has only one solution?
x ^2 + 4x + 4 = 0
x^ 2 + x = 0
x^ 2 - 1 = 0 User:
What is the solution set of the following equation?
1/5x 2 = x -4/5
{-1, -4}
{1, -4}
{1, 4} User:
What is the solution set of the following equation?
1/5x^2 = x -4/5
{-1, -4}
{1, -4}
{1, 4} User:
What is the solution set of the following equation?
(2x - 5)(3x + 1) = 0
{-5/2, 1/3}
{-1/3, 5/2}
{-3, 2/5} **Weegy:** (3x-2) squared is 9x^2 - 12x + 4. (More)

Question

Updated 4/8/2014 9:49:45 AM

3 Answers/Comments

The solution set of the following equation (2x - 5)(3x + 1) = 0 is {-1/3, 5/2}.

Added 4/8/2014 9:43:24 AM

This answer has been confirmed as correct and helpful.

Confirmed by andrewpallarca [4/8/2014 9:48:34 AM], Rated good by DahJTkfw

The solution set of the following equation 1/5x^2 = x -4/5 is {1, 4}

1/5x^2 = x -4/5

x^2 = 5x - 4

x^2 - 5x + 4 = 0

(x - 1)(x - 4) = 0

x =1 or x = 4

1/5x^2 = x -4/5

x^2 = 5x - 4

x^2 - 5x + 4 = 0

(x - 1)(x - 4) = 0

x =1 or x = 4

Added 4/8/2014 9:48:07 AM

This answer has been confirmed as correct and helpful.

Confirmed by andrewpallarca [4/8/2014 9:48:34 AM], Rated good by DahJTkfw

The following equation that has only one solution is x^2 + 4x + 4 = 0.

Added 4/8/2014 9:49:45 AM

This answer has been confirmed as correct and helpful.

Confirmed by andrewpallarca [4/8/2014 11:33:51 AM], Rated good by DahJTkfw

Which of the following equations is quadratic?
x(x^2 + 1) = 0
5(4x + 2) = 3
(x + 3)(x + 4) = 5 **Weegy:** The equation (x + 3)(x + 4) = 5 is quadratic. **User:**
If (x + 5)(x - 2) = 18, then which of the following statements is true?
x + 7 = 0 or x - 4 = 0
x + 5 = 0 or x - 2 = 0
x + 5 = 6 or x - 2 = 3 **Weegy:** 9(x - 2) = 18 is x = 4. **User:**
The graph of y = ax^2 + bx + c passes through the points (-2, 0), (0, -2), and (2, 0). Determine the solution set of 0 = ax^2 + bx + c.
{-2}
{0}
{-2, 2}
{-2, 0, 2} **Weegy:** The graph of y = ax^2 + bx + c passes through the points (-2, 0), (0, -2), and (2, 0). The solution set of 0 = ax 2 + bx + c is {-2, 2} **User:**
Give the values of a, b, and c from the general form of the equation (2x + 1)(x - 2) = 0.
a = 2, b = -3, c = -2
a = 2, b = 5, c = -2
a = 3, b = 1, c = -1 **User:**
The width and the length of a rectangle are consecutive even integers. If the width is decreased by 3 inches, then the area of the resulting rectangle is 24 square inches. What is the area of the original rectangle?
12 square inches
48 square inches
96 square inches **Weegy:** The width and the length of a rectangle are consecutive even integers. If the width is decreased by 3 inches, then the area of the resulting rectangle is 24 square inches. What is the area of the original rectangle? B. [ 48 square inches
] **User:**
What is the solution set of 7x^2 + 3x = 0?
{0, 3/7}
{0, -3/7}
{0, -4/7} **Weegy:** The solution set of 7x^2 + 3x = 0 is: B. {0, -3/7}. **User:**
An object is dropped off a building that is 144 feet tall. After how many seconds does the object hit the ground? (s = 16t^2)
3 seconds
4 seconds
9 seconds **Weegy:** 16t^2 = 144
Simplify, divide both sides by 16
t^2 = 9
t = 3 seconds **User:**
The square of a number exceeds that number by 12. What are the two possible solutions?
3 or -4
3 or 4
-3 or 4 **User:**
Which of the following points lies on the graph of y = x^2 - 2x + 6?
(-3, 21)
(-2, 0)
(-1, 10) (More)

Question

Updated 4/8/2014 8:40:33 AM

1 Answer/Comment

(x + 5)(x - 2) = 18

x^2 + 3x - 10 = 18

x^2 + 3x - 28 = 0

(x + 7)(x - 4) = 0

x + 7 = 0 or x - 4 = 0

x^2 + 3x - 10 = 18

x^2 + 3x - 28 = 0

(x + 7)(x - 4) = 0

x + 7 = 0 or x - 4 = 0

Added 4/8/2014 8:40:28 AM

This answer has been confirmed as correct and helpful.

Confirmed by andrewpallarca [4/8/2014 8:44:33 AM], Rated good by DahJTkfw

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