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2 years ago

Input is also called? Dependent VariableIndependent Variable

Mathematics

2 answers:

irga5000 [103]2 years ago

6 0

independent variable input

Setler79 [48]2 years ago

6 0

Answer: independent Variable

Explanation: An independent variable is an input, assumption, or driver that is changed in order to assess its impact on a dependent variable (the outcome). Think of the independent variable as the input and the dependent variable as the output.

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Super Dave Osborne stands at the bottom of a canyon elevation 256 feet below sea level, he throws a piano up at a velocity of 3

fgiga [73]

Answer:

The piano was in the air for 18.34 seconds.

Step-by-step explanation:

The height of the piano after t seconds is given by the following equation:

$f(t) = -16t^{2} + 320t - 256$

Initially, the piano is below the ground level. At the first root of the equation, it will go into the air, and then some time after that it will fall down again, which is at the second root of the equation.

Roots of a quadratic equation:

Given a second order polynomial expressed by the following equation:

$ax^{2} + bx + c, a\neq0$ .

This polynomial has roots $x_{1}, x_{2}$ such that $ax^{2} + bx + c = a(x - x_{1})*(x - x_{2})$ , given by the following formulas:

$x_{1} = \frac{-b + \sqrt{\bigtriangleup}}{2*a}$

$x_{2} = \frac{-b - \sqrt{\bigtriangleup}}{2*a}$

$\bigtriangleup = b^{2} - 4ac$

In this question:

$f(t) = -16t^{2} + 320t - 256$

$a = -16, b = 320, c = -256$

$\bigtriangleup = (320)^{2} - 4*(-16)*(-256) = 86016$

$t_{1} = \frac{-320 + \sqrt{86016}}{2*(-16)} = 0.8348$

$t_{2} = \frac{-320 - \sqrt{86016}}{2*(-16)} = 19.17$

Subtracting:

19.17 - 0.8348 = 18.34

The piano was in the air for 18.34 seconds.

6 0

3 years ago

Given the area of a square is 225 square feet, what is the length of each side

alexdok [17]

The area of a square can be found by squaring one side.

Let's set the side as x feet.

x^2=225
x=square root of 225
x=15

The length of each side is 15 feet.

Hope this helps!
Your fortune is "Never throw away your shot."

7 0

3 years ago

Anil weighed 95 kg. He went running every day and began to lose mass. After one month his mass was 74 kg. What was the percentag

Phoenix [80]

Percentage decrease formula =
difference / original x 100%

95-74=21
21/95 x 100% = 22.1052632 ≈ 22.1 ( 3sf )

hope my answer helps

7 0

3 years ago

Read 2 more answers

Which fraction is bigger 7/8 or 19/20?

Zigmanuir [339]

<span>19/20 is a bigger fraction.</span>

4 0