Answer:
Step-by-step explanation:
we know that
The simple interest formula is equal to
where
A is the Final Investment Value
P is the Principal amount of money to be invested
r is the rate of interest
t is Number of Time Periods
in this problem we have
substitute in the formula above
Answer:
I think the answer should be D, (tell me if i'm wrong).
Answer:
{120°, 420°, 480°, 780°, 840°}
Step-by-step explanation:
From your knowledge of the short table of trig functions, you know that ...
sin(60°) = (√3)/2
and that the sine of the supplement of this angle has the same value. Of course, the sine function is periodic with period 360°, so the solutions will all be of the form ...
θ = 90° ± 30° + k·360°
for any integer k.
For the range of interest, the angles are ...
90° +30° = 120°
360° +90° -30° = 420°
360° +90° +30° = 480°
2·360° +90° -30° = 780°
2·360° +90° +30° = 840°
Answer:
The price that is two standard deviations above the mean price is 4.90.
Step-by-step explanation:
Normal Probability Distribution:
Problems of normal distributions can be solved using the z-score formula.
In a set with mean and standard deviation , the z-score of a measure X is given by:
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.
Mean of 3.22 and a standard deviation of 0.84.
This means that
Find the price that is two standard deviations above the mean price.
This is X when Z = 2. So
The price that is two standard deviations above the mean price is 4.90.