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4 years ago

F(x) =-x+1, Evaluate f(x+h)

Mathematics

1 answer:

Alenkinab [10]4 years ago

4 0

Answer:

-1

Explanation:

Find components of the definition.

$f(x+h)=-h-x+1\\f(x)=-x+1$

Plug in components

$\frac{f(x+h)-f(x)}{h} = \frac{-h-x+1-(-x+1)}{h}$

Simplify.

-1

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A total of 591 tickets were sold for the school play. They were either adult tickets or student tickets. There were 59 fewer stu

mylen [45]

Answer:532 adult tickets were sold

Step-by-step explanation:591-59

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4 years ago

Determine between which consecutive integers the real zeros of f(x) = x2 – 3x + 1 are located.

Trava [24]

Answer:

a) between -1&0, 0&1 and 2&3

Step-by-step explanation:

Solving 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:

$f(x) = x^{2} - 3x + 1$

$\bigtriangleup = (-3)^{2} - 4*1*1 = 5$

$x_{1} = \frac{-(-3) + \sqrt{5}}{2*1} = 2.62$

$x_{2} = \frac{-(-3) - \sqrt{5}}{2*1} = 0.38$

2.62 is between 2 and 3.

0.38 is between 0 and 1.

So the correct answer is:

a) between -1&0, 0&1 and 2&3

4 0

3 years ago

Read 2 more answers

If a line crosses the x-axis at (4, 0), what is the x-intercept?

Likurg_2 [28]

The x-intercept is 4, because it crosses the x-axis at 4.
hope this helps!

4 0

3 years ago

Jessica earns 3% commission selling computers she sold 37500 worth of computers last month how much commission did Jessica earn

saveliy_v [14]

Here,

3/100*37500
=1125

She earned total commission of 1125 last month

5 0

4 years ago

Simplify each expression as much as possible, and rationalize denominators when applicable. √72=?

Misha Larkins [42]

Answer:

6√2

Step-by-step explanation:

Solving the given expression step by step:

72 = 2 × 2 × 2 × 3 × 3

Now for finding the square root we will make pair of two numbers of same values.

We have one pair of 2's and one pair of 3's and left one 2

Thus, √72 = 2 × 3 × √2 = 6√2

We rationalize denominator and change it into a simpler form as soon as possible.

3 0

3 years ago