3 years ago

Please answer this correctly

Mathematics

1 answer:

8090 [49]3 years ago

3 0

A and b are true and c is false

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If F(x) = log 4 3x, find F -1(x). A.4^y=3x B.4^x=3y C.4^3y=x

lara31 [8.8K]

Answer:

${f}^{ - 1} (x) = \frac{{4}^{x} }{3}$

Step-by-step explanation:

The given logarithmic function is

$f(x) = log_{4}(3x)$

Let y=f(x)

This gives us:

$y = log_{4}(3x)$

We interchange x and y to get:

$x = log_{4}(3y)$

${4}^{x} = 3y$

$y = \frac{{4}^{x} }{3}$

Therefore the inverse is

${f}^{ - 1} (x) = \frac{{4}^{x} }{3}$

Based on the possible answers, B is most closed to the inverse.

The correct answer is B

5 0

3 years ago

Which sum contradicts this statement? The sum of two irrational numbers is always irrational. A) 7 + 5 7 B) 4 + 2 9 C) -2 6 + 8

lakkis [162]

The correct answer would be Choice D.

I assume you mean to have square root signs in the empty spaces between the numbers.

For choice D, you are adding -4 square roots of 6 and 4 square roots of 6. The answer to that is zero. Which is not an irrational number.

4 0

3 years ago

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Jun swims 18 laps and Mara swims 25 laps. How many fewer laps did Jun swim than Mara ?

marysya [2.9K]

Answer:

Step-by-step explanation:

All you have to do to solve this is subtract 18 from 25

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3 years ago

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for the first 18 days of the month, buffet dinner generate $11,800 in sales. The buffet sale target for the month is $18,650. Gi