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____ [38]
2 years ago
7

I need help on this question (^~^;)ゞ​

Mathematics
1 answer:
vfiekz [6]2 years ago
7 0

Answer:

21) x = 0

23) x = 7

Step-by-step explanation:

In a parallelogram, the opposite sides are congruent. Using this fact, we can create equations for both problems.

21)

2x + 18 = 18

Subtract 18.

2x = 0

Divide by 2.

x = 0

23)

2x - 3 = 11

Add 3.

2x = 14

Divide by 2.

x = 7

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8 0
3 years ago
If f(x) = 6x-11, what is f(-6)?​
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We are provided in the question statement with a function "f(x)" whose output is a polynomial of 1 variable and degree 1.

To obtain the value of f(-6) from the output polynomial of the function f(x), we will simply need to substitute (-6) as the value of x in the polynomial and calculate the final value.

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Hence, f(-6) = -47.

  • Polynomial: In mathematics, an expression of more than two algebraic terms, especially the sum of several terms that contain the same variable(s) of different powers and individual, distinct co-efficients.
  • Function: In Mathematics, a function is an operator which on taking input, provides a certain output.

To learn more about Polynomials and Functions, click on the link below.

brainly.com/question/26910958

#SPJ9

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