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3 years ago

The ratio of the walking speeds of three people

Mathematics

1 answer:

Blababa [14]3 years ago

6 0

3 : 4 : 5 = 3² : 4² : 5² = 9 : 16 : 25

The answer is B.

Hope this helps.

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Does the data suggest a linear, quadratic, or exponential model?

oksano4ka [1.4K]

Exponential model because it's increasing rapidly.

4 0

3 years ago

Can anyone help pllllzzzz

Sladkaya [172]

Answer:

Muercury 3

Venus 6

Mars 2

pluto 5

Jupiter 1

Nucleus4

Step-by-step explanation:

4 0

3 years ago

Suppose you just received a shipment of nine televisions. Three of the televisions are defective. If two televisions are randoml

Temka [501]

<h2>Answer:</h2>

The probability that both televisions work is: 0.42

The probability at least one of the two televisions does not work is:

0.5833

<h2>Step-by-step explanation:</h2>

There are a total of 9 televisions.

It is given that:

Three of the televisions are defective.

This means that the number of televisions which are non-defective are:

9-3=6

The probability that both televisions work is calculated by:

$=\dfrac{6_C_2}{9_C_2}$

( Since 6 televisions are in working conditions and out of these 6 2 are to be selected.

and the total outcome is the selection of 2 televisions from a total of 9 televisions)

Hence, we get:

$=\dfrac{\dfrac{6!}{2!\times (6-2)!}}{\dfrac{9!}{2!\times (9-2)!}}\\\\\\=\dfrac{\dfrac{6!}{2!\times 4!}}{\dfrac{9!}{2!\times 7!}}\\\\\\=\dfrac{5}{12}\\\\\\=0.42$

The probability at least one of the two televisions does not work:

Is equal to the probability that one does not work+probability both do not work.

Probability one does not work is calculated by:

$=\dfrac{3_C_1\times 6_C_1}{9_C_2}\\\\\\=\dfrac{\dfrac{3!}{1!\times (3-1)!}\times \dfrac{6!}{1!\times (6-1)!}}{\dfrac{9!}{2!\times (9-2)!}}\\\\\\=\dfrac{3\times 6}{36}\\\\\\=\dfrac{1}{2}\\\\\\=0.5$

and the probability both do not work is:

$=\dfrac{3_C_2}{9_C_2}\\\\\\=\dfrac{1}{12}\\\\\\=0.0833$

Hence, Probability that atleast does not work is:

0.5+0.0833=0.5833

4 0

4 years ago

What is 11 x 11 and a way to remember it

N76 [4]

11x11 is 121 a way to remember it is there is one number on the left one number on the right and they add up to be 2 numbers total

7 0

3 years ago

Read 2 more answers

Riley has decided to become an engineer. Outline the steps she should take in researching her education options.

Rus_ich [418]

Answer: 

Earn a bachelor’s degree from an ABET-accredited universityEstablish licensure through the NCEES FE exam
Earn a master’s degree in a sub-discipline of engineering
Gain practical experience in the field
Earn a professional engineering (PE) license in a sub-discipline of engineering
Attain further professional certification or join professional societies

Step-by-step explanation: Hope this helped :)

5 0

3 years ago