Answer:
<h3>
28° and 152°</h3>
Step-by-step explanation:
Suplementary angles add to 180°
If one of angles is 124° more than the other then if we subtract 124° from the larger angle we get two equal angles which sum is also 124° less
180° - 124° = 56°
56° - sum of two equal angles
56° ÷ 2 = 28° - the measure of smaller angle
28° + 124° = 152° - the measure of larger angle
Answer:
The rate at which the account pay the deposit is 2 %
Step-by-step explanation:
Given as :
The principal amount deposited in account = $2100
The rate of interest = r % simple interest annually
The time period = 11 months =
year
The amount received = $2138.50
Now<u>, From Simple Interest method </u>
Simple Interest = 
Or, Interest = 
Or, Interest = 
Or, Interest = 19.25 r
Now, Interest = Amount - Principal
So, 19.25 r = $2138.50 - $2100
Or, 19.25 r = $38.5
∴ r = 
I.e r = 2
So, rate of interest = r = 2 %
Hence The rate at which the account pay the deposit is 2 % Answer
Answer:

And we can use the probability mass function and we got:
Then the probability that all three have a smart phone is 0.091
Step-by-step explanation:
Let X the random variable of interest "number of students with smartphone", on this case we now that:
The probability mass function for the Binomial distribution is given as:
Where (nCx) means combinatory and it's given by this formula:
And we want to find this probability:

And we can use the probability mass function and we got:
Then the probability that all three have a smart phone is 0.091