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3 years ago

What is the answer for (-3)+4x +2+2x +2x

Mathematics

1 answer:

sineoko [7]3 years ago

8 0

Answer:

Step-by-step explanation:

(-3) + 4x + 2 + 2x + 2x <em>combine like terms</em>

= (4x + 2x + 2x) + (-3 + 2)

= 8x - 1

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What are the 3 different forms of a quadratic function and what do the variables in each represent?

Likurg_2 [28]

Answer:

general, factored, and vertex form.

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Factored: y=(x+a)(x+b)

Vertex: y=a(x-h)^2+k

Step-by-step explanation:

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3 years ago

A) Let f(x) = 4x + 2 and g(x) = 2x^2-4. Find the formula for the composition function gof

ollegr [7]

Answer:

g o f = $g(f(x)) = 32x^2 + 32x + 4$

Step-by-step explanation:

Given

$f(x) = 4x +2$

$g(x) =2x^2 - 4$

Required:

Find g o f

This is calculated as:

$gof = g(f(x))$

$g(x) =2x^2 - 4$

So:

$g(f(x)) = 2(4x+2)^2 - 4$

$g(f(x)) = 2(4x+2)(4x+2) - 4$

$g(f(x)) = 2[ 16x^2 + 16x + 4)] - 4$

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$g(f(x)) = 32x^2 + 32x + 4$

5 0

3 years ago

Add the fractions 3/14+15/21. Simplify your answer

Ainat [17]

When simplified, it should be 13/14

6 0

3 years ago

Read 2 more answers

Find an equation of the line. Write the equation using function notation.

Gemiola [76]

The equation of line perpendicular to 4y = x-8 passing through (3,-3) is:

$y = -4x+9$

Step-by-step explanation:

Given equation of line is:

$4y=x-8$

We have to convert the given line in slope-intercept form to find the slope of the line

So,

Dividing both sides by 4

$\frac{4y}{4} =\frac{x-8}{4}\\y = \frac{1}{4}x-\frac{8}{4}\\y = \frac{1}{4}x-2$

Let m1 be the slope of given line

Then

$m_1 = \frac{1}{4}\\$

Let m2 be the slope of line perpendicular to given line

As we know that produt of slopes of two perpendicular lines is -1

$m_1.m_2 = -1\\\frac{1}{4} . m_2 = -1\\m_2 = -1*4\\m_2 = -4$

The slope intercept form of line is given by:

$y = m_2x+b$

Putting the value of slope

$y = -4x+b$

to find the value of b, putting (3,-3) in equation

$-3 = (-4)(3) + b\\-3 = -12 +b\\b = -3+12\\b = 9$

Putting the value of b in the equation

$y = -4x+9$

Hence,

The equation of line perpendicular to 4y = x-8 passing through (3,-3) is:

$y = -4x+9$

Keywords: Equation of line, slope

Learn more about equation of line at:

#LearnwithBrainly

4 0

4 years ago

-7(2x - 4) - 7= 3(x - 5)+ 4x - 9 distribute and combine like terms

Leni [432]

X=15/7 (in exact form) or x= 2 1/7 (in mixed number form) or x= 2.142857 (in decimal form)

5 0

3 years ago