3 years ago

REALLY NEED HELP PLEASE!!

Mathematics

2 answers:

Alborosie3 years ago

3 0

Step-by-step explanation:

sum of angles in triangle is 180

so 80 + 40 + angle 2 = 180 angle 2 = 60

yawa3891 [41]3 years ago

3 0

Angles 1 and 2 is 60 and angles 3 and 4 is 35

You might be interested in

brian makes an investment in his company’s stock . what does the stock chart say about the stock price today? The down arrow ind

Ivan

Answer:50$ and 2

Step-by-step explanation:

3 0

2 years ago

Before starting to play the roulette in a casino you want to look for biases that you can exploit. Youtherefore watch 100 rounds

never [62]

Answer:

$P(n>55)=0.1357$

Step-by-step explanation:

From the question we are told that:

Sample size n=100

Sample space n'=36

Generally the equation for the mean number of times odds appears is mathematically given by

$\=x_o=hp$

$\=x_o=100*0.5$

$\=x_o=50$

Generally the equation for standard deviation is mathematically given by

$\sigma=(hp(1-p))^{1/2}\\\sigma=(50(0.5))^{1/2}$

$\sigma=5$

Therefore probability to make wrong decision P(n>55)

$P(n>55)=1-P(z55)=1-P(z55)=1-0.86$

$P(n>55)=0.1357$

8 0

3 years ago

A combination lock uses three numbers between 1 and 78 with repetition, and they must be selected in the correct sequence. whic

Oksana_A [137]

first number and second number and third number = Total

78 possibilities x 78 possibilities x 78 possibilities = 234

Since "order" matters, this is a permutation.

So, this can be calculated using: ₇₈P₃

"Permutation lock" would be a more appropriate name.

8 0

3 years ago

Read 2 more answers

1/3 + (2/5)

wolverine [178]

Answer:

+89

Step-by-step explanation:

4 0

3 years ago

Ralph runs at a constant rate of 3 miles per hour how long will it take Ralph to run 15 miles

LenaWriter [7]

15/3=5 hours is your answer

5 0

3 years ago

Read 2 more answers