Answer:
50
Step-by-step explanation:
- 8i = √-64
8i + 6
- -4i = -√-16
-4i + 3
[8i + 6][-4i + 3] → FOIL
>> -32i² + [24i - 24i] + 18
↑ ↑
-1 0
>>> 32 + 18 = 50
Information on Imaginary Numbers
√-1 = i
-1 = i²
-i = i³
1 = i⁴ [And every other exponent that is a multiple of 4; this cycle then repeats itself every time you go up one number at a time]
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Answer:
68% of the pizzas are delivered between 24 and 30 minutes
Step-by-step explanation:
First we calculate the Z-scores
We know the mean and the standard deviation.
The mean is:
The standard deviation is:
The Z-score formula is:
For the Z-score is:
For the Z-score is:
Then we look for the percentage of the data that is between deviations from the mean.
According to the empirical rule 68% of the data is less than 1 standard deviations of the mean. This means that 68% of the pizzas are delivered between 24 and 30 minutes
A because yes on apex cdxdxdxdxd
80 km because if the units number is smaller than five then you go to eighty but if the number is five or more you have to go to ninety but the number is smaller so i went to eighty.
Answer:
20
Step-by-step explanation:
Plugin x = 10 and y = 5 in the expression.
x + 2y = 10 + 2*5
= 10 + 10
= 20