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notsponge [240]

3 years ago

5

Explain why a number that is divided by a multiple of 3 is also divisible by 3

1 answer:

Sonja [21]3 years ago

8 0

It is a reciprocal. Multiplying is the opposite of Dividing, so if I multiply 3 times 4 I get 12. If i divide 12 by 3 I get 4.

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How do you write 3 1/6 as a decimal

Vlada [557]

You write it as 3.16 I am pretty sure

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3 years ago

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Which point on the number line represents the product (-4%-2)(-1)? |--10 - - LG -4 4 71 10 D Point A K Point B Point CO Point D

goldfiish [28.3K]

Answeer that to hard for me to answer

Step-by-step explanation: sorry wish i could help

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2 years ago

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A statistics professor plans classes so carefully that the lengths of her classes are uniformly distributed between 48.0 and 58.

Yanka [14]

Answer: 0.025

Step-by-step explanation:

Given : A statistics professor plans classes so carefully that the lengths of her classes are uniformly distributed between the interval [48.0 minutes, 58.0 minutes].

The probability density function :-

$f(x)=\dfrac{1}{58-48}=\dfrac{1}{10}$

Now, the probability that a given class period runs between 50.25 and 50.5 minutes is given by :-

$\int^{50.5}_{50.25}\ f(x)\ dx\\\\=\int^{50.5}_{50.25}\ \dfrac{1}{10}\ dx\\\\=\dfrac{1}{10}|x|^{50.5}_{50.25}\\\\=\dfrac{1}{10}\ [50.5-50.25]=\dfrac{1}{10}\times(0.25)=0.025$

Hence, the probability that a given class period runs between 50.25 and 50.5 minutes =0.025

Similarly , the probability of selecting a class that runs between 50.25 and 50.5 minutes = 0.025

5 0

2 years ago

Anyone understand this??Help please

Anna [14]

I think you have to choose any numbers in the graph to solve for Rafael and Ava

3 0

3 years ago

If f(x)=1/7-9, then f^-1(x)=

artcher [175]

Answer:

Step-by-step explanation:

Hello!

$f(x)=\frac{1}{7} -9=\frac{1-9*7}{7} =-\frac{62}{7} \\=>f^{-1} (x)=-\frac{7}{62}\\$

Good luck!

4 0

2 years ago