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vfiekz [6]
3 years ago
14

Please help with all of them , thank you !

Mathematics
1 answer:
Lelu [443]3 years ago
4 0

Answer:

A.  12x² + 15xy + 18x

B.  - 12x² + 18xy + 24x

C.  10x² - 31x - 14

D.   x² - 36

3a.  x = 8

3b.  x = 3

Step-by-step explanation:

A.  3x ( 4x + 5y +6 )                        C.  ( 2x - 7 ) ( 5x + 2 )

    12x² + 15xy + 18x                             10x² + 4x - 35x - 14

                                                             10x² - 31x - 14

B.  6x ( 3y - 2x + 4 )

    18xy - 12x² + 24x                         D. ( x + 6 ) ( x - 6 )

     -12x² + 18xy + 24x                           x² - 6x + 6x - 36

                                                              x² - 36

3a.  5/4x + 2 = 12                             3b.  7/3x - 2 = 5/3x

      5/4x = 12 - 2                                     -2 = 5/3x - 7/3x

      5/4x = 10                                          -2 = - 2/3x

      x = 10 · 4/5                                       -2/3x = -2

      x = 8                                                  x = 3                                        

     

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Step-by-step explanation:

The volume of triangular prism is calculated like this : 1/2 × b×h×l (b: base, h: height, l: length)

1/2 × 7 × 6 × 8 = 168 units^3

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I really need help please
Leokris [45]

Answer:

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6 0
3 years ago
What is equivalent to (73)–2
mario62 [17]

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7 0
2 years ago
Read 2 more answers
Given various values of the linear functions f(x) and g(x) in the table, determine the y-intercept of (f- g)(x).
lisabon 2012 [21]

The y-intercept of linear function (f- g)(x) is (0,9)

<h3>How to determine the y-intercept?</h3>

The table of values is given as:

x   -6 -4 -1 3 4

f(x) 15 11 5 -3 -5

g(x) -36 -26 -11 9 14

The equations of the functions is calculated using:

y = \frac{y_2 -y_1}{x_2-x_1} * (x -x_1) + y_1

So, we have:

f(x) = \frac{11 -15}{-4 + 6} * (x + 6) + 15

Evaluate

f(x) = -2x + 3

Also, we have:

g(x) = \frac{-26 + 36}{-4 + 6} * (x + 6) - 36

Evaluate

g(x) = 5x - 6

Next, we calculate (f - g)(x) using:

(f - g)(x) = f(x) - g(x)

This gives

(f - g)(x) = -2x + 3 - 5x + 6

Substitute 0 for x

(f - g)(0) = -2(0) + 3 - 5(0) + 6

Evaluate

(f - g)(0) = 9

Hence, the y-intercept of (f- g)(x) is (0,9)

Read more about linear functions at:

brainly.com/question/24896196

#SPJ1

7 0
2 years ago
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