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3 years ago

PLEASE HELP!!!!!! ILL GIVE BRAINLIEST *EXTRA 40 POINTS** !! DONT SKIP :((

Mathematics

1 answer:

Vaselesa [24]3 years ago

5 0

Answer:

No it isn't

Step-by-step explanation:

Well, 1 + 6 does not equal 6, so it cannot be true

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A group of campers hiked for 5 3/4 hours today and 6 3/4 hours yesterday. How many hours did they hike in all?

Snowcat [4.5K]

First you can turn the fractions into improper fractions.
5 3/4 = 23/4 6 3/4= 27/4
Add numerators, denominators stay the same.
23 + 27= 50
50/4
You can either leave it or simplify
Simplified:
50/4 = 12 1/2
:)

5 0

4 years ago

Which of the following iſ the best statement of the use of the addition rule of probability?

otez555 [7]

Answer:

Option C

Step-by-step explanation:

Addition theory of probability is used to determine the probability for union of two or more sets.

P(AUB) = P(A)+P(B)-P(AB) is the addition theory of probability for two sets A and B.

P(AUBUC) = P(A)+P(B)+P(C)-P(AB)-P(BC)-P(CA)

for 3 sets

This can be extended to any number of sets

So addition theory has nothing to do with independent events both occurring

Option c is the right answer.

6 0

4 years ago

Solve the following equation <br> x-5.5=4

Brilliant_brown [7]

Solution: X=9.5

Explanation: x-5.5=4 —> x=4+5.5 —> x=9.5

3 0

3 years ago

Read 2 more answers

Katen [24]

Answer:

4x= 14

Step-by-step explanation:

5 0

3 years ago

A function f has the following verbal description: multiply by 3, add 5, and

STALIN [3.7K]

Regarding the functions in this problem, it is found that:

a) The verbal description of the inverse is: Take the third root, subtract by 5 and divide by 3.

b) The formulas are:

f(x) = (3x + 5)³.

$f^{-1}(x) = \frac{\sqrt[3]{x} - 5}{3}$

c) The compositions result in x, hence they are inverses.

<h3>How to obtain the inverse function?</h3>

The original function is described as follows:

Multiply by 3: 3x.

Add 5: 3x + 5.

Take the third power: (3x + 5)³.

Hence the function is:

y = (3x + 5)³.

To obtain the inverse functions, we exchange x and y and then isolate y, hence:

x = (3y + 5)³

$\sqrt[3]{x} = \sqrt[3]{(3y+5)^3}$

$3y + 5 = \sqrt[3]{x}$

$3y = \sqrt[3]{x} - 5$

$y = \frac{\sqrt[3]{x} - 5}{3}$

$f^{-1}(x) = \frac{\sqrt[3]{x} - 5}{3}$

The verbal description of the inverse is:

Take the third root. sqrt[3](x).

Subtract by 5: sqrt[3](x) - 5.

Divide by 3.

The compositions are given as follows:

$f(f^{-1}(x)) = f\left(\frac{\sqrt[3]{x} - 5}{3}\right) = \left(3\left(\frac{\sqrt[3]{x} - 5}{3}\right + 5)\right)^3 = (\sqrt[3]{x})^3 = x$

$f^{-1}(f(x)) = f^{-1}((3x + 5)^3) = \frac{\sqrt[3]{(3x + 5)^3} - 5}{3} = \frac{3x + 5 - 5}{3} = x$

More can be learned about inverse functions at brainly.com/question/11735394

#SPJ1

4 0

2 years ago