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2 years ago

Is 0.444444444444444... a rational number? explain

Mathematics

1 answer:

ehidna [41]2 years ago

4 0

No, it is an irrational number. It repeats

No, it is an irrational number because it does not terminate/end

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Is 3/8 equivalent to 12/24

Ghella [55]

No because 3 x 4 = 12 and 8 x 4 ≠ 24

4 0

1 year ago

Find the f^-1(x) and it’s domain

borishaifa [10]

Answer:

$f^{-1}(x) = (x + 8)^2$

$x \ge -8$

Step-by-step explanation:

Given

$f(x) = \sqrt x - 8$

Solving (a): $f^{-1}(x)$

We have:

$f(x) = \sqrt x - 8$

Express f(x) as y

$y = \sqrt x - 8$

Swap x and y

$x = \sqrt y - 8$

Add 8 to $both\ sides$

$x + 8 = \sqrt y - 8 + 8$

$x + 8 = \sqrt y$

Square both sides

$(x + 8)^2 = y$

Rewrite as:

$y = (x + 8)^2$

Express y as: $f^{-1}(x)$

$f^{-1}(x) = (x + 8)^2$

To determine the domain, we have:

The original function is $f(x) = \sqrt x - 8$

The range of this is: $f(x) \ge -8$

The $domain$ of the $inverse$ function is the $range$ of the $original$ function.

<em>Hence, the domain is:</em>

$x \ge -8$

3 0

2 years ago

Please help me pleaseeeee!!

mafiozo [28]

Answer:

The median is 40. The least number of smartphones distributed is 34. Finally, the third quartile is 48. Hope this helps!

Step-by-step explanation:

4 0

2 years ago

What is 0.375 expressed as a fraction

Leno4ka [110]

0.735 expressed as a fraction is 3/8

7 0

1 year ago

Read 2 more answers

90.5 is 25% of what number

fiasKO [112]

Answer:

362

Step-by-step explanation:

25% can go into 100% quite easy

All you do is multiply it by 4

90.5 * 4 would be 362

7 0

2 years ago

Read 2 more answers