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lutik1710 [3]
2 years ago
10

What is f(3) if f(x) = 2x + 1?​

Mathematics
2 answers:
marshall27 [118]2 years ago
5 0

Answer:

7

Step-by-step explanation:

yanalaym [24]2 years ago
4 0

Answer:

f(3) = 7

Step-by-step explanation:

Set x equal to 3

2(3) + 1

7

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Find the inverseof the function:<br> y=(x – 3)^2
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Answer:

f(x)= \sqrt{x}+3, -\sqrt{x}+3

Step-by-step explanation:

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3 years ago
Which is the dependent variable when 3x = y?
Andrej [43]

Answer:

A dependent variable is a variable (often denoted by y ) whose value depends on that of another.  so it is the variable that changes depending on the numbers beside it.

I hope this helps if not check out Khan academy

https://www.khanacademy.org/math/algebra/introduction-to-algebra/alg1-dependent-independent/v/dependent-and-independent-variables-exercise-example-3  

7 0
2 years ago
Finish breaking the sentence into three separate ideas
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Answer:

Some researchers share marleys concerns

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Step-by-step explanation:

7 0
2 years ago
Micah rows his boat on a river 4.48 miles downstream, with the current, in 0.32 hours. He rows back upstream the same distance,
Molodets [167]
Let the speed of the current be y and the speed of Micah's sailing speed be x. Then 4.48/(x + y) = 0.32
4.48/(x - y) = 0.56

0.32x + 0.32y = 4.48 . . . (1)
0.56x - 0.56y = 4.48 . . . (2)
(1) x 7 => 2.24x + 2.24y = 31.36 . . . (3)
(2) x 4 => 2.24x - 2.24y = 17.92 . . . (4)
(3) - (4) => 4.48y = 13.44
y = 3
From (1), 0.32x + 0.32(3) = 4.48
0.32x = 4.48 - 0.96 = 3.52
x = 3.52/0.32 = 11

Therefore, the speed of the current is 3 miles per hour.

3 0
2 years ago
Read 2 more answers
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