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2 years ago

Find the inverse for: f(x) = x + 1/2

Mathematics

1 answer:

Sidana [21]2 years ago

5 0

Answer:

f-1(x)=x-1/2

Step-by-step explanation:

Switch x and y and solve for y

x=y+1/2

y=x-1/2

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Part 2 to that question answer right pls

Marta_Voda [28]

Answer:

1. decreases

2. 31.50

Step-by-step explanation:

It decreases because there's a negative sign.

It's 31.50 because 10.50 * 3 = 31.50

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2 years ago

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An item is regularly priced at 60 . It is on sale for 40 percent off the regular price. How much (in dollars) is discounted from

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Answer:

24.00

Step-by-step explanation:

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3 years ago

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2 years ago

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3 years ago

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vitfil [10]

The percentage of students that passed the exam is 25.2%

The given parameters;

number of the males, = 85

number of the females, = 30

percentage of the female that passed = 40%

percentage of the male that passed, = 20%

To find:

the percentage of students that passed the exam

The number of the male students that pass the exam;

$= 0.2 \times 85 \\\\= 17$

The number of the female students that pass the exam;

$= 0.4 \times 30 \\\\= 12$

The total number of students in the school;

= 85 + 30

= 115

The total number of the students that passed the exam;

= 17 + 12

= 29

The percentage of students that passed the exam;

$= \frac{total \ number \ that \ passed }{total \ number \ of \ the \ students} \times 100\% \\\\= \frac{29}{115} \times 100\%\\\\= 25.2 \%$

Thus, the percentage of students that passed the exam is 25.2%

Learn more here: brainly.com/question/1163846

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3 years ago