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3 years ago

12

A fair coin is tossed six times and the sequence of heads and tails is recorded. What is the probability that the sequence conta

ins exactly two heads? Express your answer as a common fraction.

1 answer:

stealth61 [152]3 years ago

4 0

Answer:

1/3

Step-by-step explanation:

you take the probability divide by the tossing times

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What is the Greatest Common Factor of 48r^2-52r ?

Solnce55 [7]

Step-by-step explanation:

4r is the greatest common factor

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2 years ago

How do you find a missing side of a triangle using SOH CAH TOA

katrin2010 [14]

Answer:

See explanation and attachment

Step-by-step explanation:

SOH CAH TOA is a mnemonic.

SOH means $\sin \theta=\frac{Opposite}{Hypotenuse}$

CAH means $\cos \theta =\frac{Opposite}{Hypotenuse}$

TOA means $\tan \theta=\frac{Opposite}{Adjacent}$

Given an angle and a side of a right angle triangle, you can use the appropriate ratio to find the missing side.

For instance, find x in the diagram in the attachment.

In this case the best ratio to use is TOA.

$\tan 60\degree=\frac{\sqrt{3} }{x}$

$\implies x=\frac{\sqrt{3} }{\tan 60}$

$x=\frac{\sqrt{3} }{\sqrt{3} } =1$

All the other ratio also follow the same pattern

NB: Your calculator in degree should give $\tan 60\degree=\sqrt{3}$

3 0

3 years ago

Number 31 please guys!!!!!

monitta

the answer is c
this is because, first you use the distributive property. Multiply 'y' by the number 3 and you get 3y
then multiply 3 by the number 4.
you get 12
subtract 7 from 12 and you get 5

So, the expression becomes 3y+5

Hope this helped!!

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3 years ago

Pls help me #7thgrademath

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3 years ago

Read 2 more answers

(PLEASE HELP!!)

umka2103 [35]

Congruent because 2 is a larger number then one and 1 is a smalled number then 2

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2 years ago