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kipiarov [429]
3 years ago
6

Evaluate -3x-2(3-x)+14

Mathematics
2 answers:
Nookie1986 [14]3 years ago
4 0

Perform the indicated operations in the order specified by PEMDAS (Order of Operations rules):

-3x - 2(3) - 2(-x) + 14. Multiply first, in two places:

-3x - 6 + 2x + 14 Combine like terms:

8 - x Answer

GalinKa [24]3 years ago
3 0

-3x - 2(3 - x) + 14

Distribute -2 inside the parentheses (-2 * 3) and (-2 * -x).

-3x - 6 + 2x + 14

Combine like terms (-3x + 2x) and (-6 + 14).

\boxed {-x + 8} is your answer.

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For the functions f(x)=2x^2+3x+9 and g(x)=−3x+10 find (f⋅g)(x) and (f⋅g)(1)
pashok25 [27]

Step-by-step explanation:

f(x)=2x²+3x+9

g(x) = - 3x + 10

In order to find (f⋅g)(1) first find (f⋅g)(x)

To find (f⋅g)(x) substitute g(x) into f(x) , that's for every x in f (x) replace it by g (x)

We have

(f⋅g)(x) = 2( - 3x + 10)² + 3(- 3x + 10) + 9

Expand

(f⋅g)(x) = 2( 9x² - 60x + 100) - 9x + 30 + 9

= 18x² - 120x + 200 - 9x + 30 + 9

Group like terms

(f⋅g)(x) = 18x² - 120x - 9x + 200 + 30 + 9

(f⋅g)(x) = 18x² - 129x + 239

To find (f⋅g)(1) substitute 1 into (f⋅g)(x)

That's

(f⋅g)(1) = 18(1)² - 129(1) + 239

= 18 - 129 + 239

We have the final answer as

<h3>(f⋅g)(1) = 128</h3>

Hope this helps you

3 0
3 years ago
17. Find the measures of the length and width of
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7 0
3 years ago
Unit rate for 3 inches of rain in 6 hours
Travka [436]
3 (inches) / 6 (hrs) = 1/2 (or 0.5) inches per hr <==
6 0
3 years ago
Read 2 more answers
Find all factor of 20 and ill brainlyest you​
tatiyna

Answer: The factors of 20 are 1, 2, 4, 5, 10, and 20

Step-by-step explanation: Mark me brain give 5 stars and a thank you

3 0
2 years ago
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What is the equation of the line that passes through the point (3,4) and has an undefined slope?
rosijanka [135]

Answer:

The equation of the line that passes through the point (3,4) and has an undefined slope is x = 3

Step-by-step explanation:

  • The slope of the horizontal line is zero
  • The equation of the horizontal line passes through the point (a, b) is y = b
  • All the points on the horizontal line have the same y-coordinates

  • The slope of the vertical line is undefined
  • The equation of the vertical line passes through the point (a, b) is x = a
  • All the points on the vertical line have the same x-coordinates

Let us solve the question

∵ The line has an undefined slope

∴ The line is a vertical line

∵ The equation of the vertical line is x = a, where a is the x-coordinate

   of any point on the line

∵ The line passes through the point (3, 4)

∴ a = 3

∴ The equation of the line is x = 3

The equation of the line that passes through the point (3,4) and has an undefined slope is x = 3

5 0
3 years ago
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