Answer:
Step-by-step explanation:
Let x be the random variable representing the set of art exam scores. Since they are normally distributed and the population mean and population standard deviation are known, we would apply the formula,
z = (x - µ)/σ
Where
x = sample mean
µ = population mean
σ = standard deviation
From the information given,
µ = 81
σ = 10
the probability of getting a score lower than 78 is expressed as
P(x < 78)
For x = 78,
z = (78 - 81)/10 = - 0.3
Looking at the normal distribution table, the probability corresponding to the z score is 0.38
Therefore, the percentage of exam scores that are lower than Calvin's score is
0.38 × 100 = 38%
The monthly interest payment in the situation described is $9.00
What is credit card monthly interest in dollar terms?
The credit card monthly interest cost in dollars is the average balance of the credit card multiplied by the annual interest rate and all multiplied by 1 divided 12, since 1 month interest is just 1 over 12 of the annual interest
In other words, our monthly interest cost can be determined using the formula below:
monthly interest cost= average balance of credit card*annual interest rate*1/12
average balance of the credit card=$720
annual interest rate=15%
monthly interest cost=$720*15%*1/12
monthly interest cost=$9.00
When the average credit card balance of the month is $720, the credit card holder would pay $9.00 in interest over the period of that month
Note that the annual interest payment is time-apportioned by multiplying by 1 divided by 12.
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Answer:
Your answer of coplanar is correct
Step-by-step explanation:
A skew line are 2 lines that aren't parallel and do not intersect.
Since there are arrows on either end of AC and RS , it mean those lines continue, and they will eventually intersect.
It is also not the other 2 clearly, since they do intersect and they don't make a 90° angle
So yes,
The answer is Coplanar
Hope this helps.
X= -46 and y = -40 I worked it out I might be wrong
There you go! Hope it helps