I NEED HELP WIH NUMBER THREE PLEASE! (-0.5) AS A FRACTION PLS!
Answers
Answer 1
Answer:
Answer: -
Step-by-step explanation:
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Answers
Taking out the parentheses of expression
(5x2 + 3x + 4) − (2x2 + 5x − 1)
= 5x2 + 3x+ 4 -2x2 - 5x + 1
Grouping together the like terms and arranging the expression:
= 5x2 - 2x2 + 3x - 5x + 4 + 1
Combining the like terms:
= 3x2 - 2x + 5
Therefore,
A = 3
(5x2 + 3x + 4) − (2x2 + 5x − 1)
= 5x2 + 3x+ 4 -2x2 - 5x + 1
Grouping together the like terms and arranging the expression:
= 5x2 - 2x2 + 3x - 5x + 4 + 1
Combining the like terms:
= 3x2 - 2x + 5
Therefore,
A = 3
Answer: 3
Step-by-step explanation:
Answers
y = (2/3)x - 1/3
y + 1/3 = (2/3)x
(3/2)*(y+1/3) = x
(3/2)y + 1/2 = x
f^-1(x) = (3/2)x + 1/2
This is the inverse you need to graph. You can plot this yourself, or use a graphing calculator.
The domain of f^-1(x) is all real numbers
The range of f^-1(x) is all real numbers
For the next 2, just plug in the values and solve:
f(2) = 1
f^-1(-19) = -28
y + 1/3 = (2/3)x
(3/2)*(y+1/3) = x
(3/2)y + 1/2 = x
f^-1(x) = (3/2)x + 1/2
This is the inverse you need to graph. You can plot this yourself, or use a graphing calculator.
The domain of f^-1(x) is all real numbers
The range of f^-1(x) is all real numbers
For the next 2, just plug in the values and solve:
f(2) = 1
f^-1(-19) = -28