Use the complex conjugate of (-7 + i) to remove the complex number from the denominator and then simplify.
See attached.
See attached.
Richard ate g out of 12 gumdrops. Write an expression that shows how many gumdrops Richard has left.
2 answers:
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Based on the mean, standard deviation, and the graph, the indicated IQ score would be 115.
<h3>What is the indicated IQ score?</h3>First, find the z value:
P(Z<z) = 1 - tail value
= 1 - 0.1587
= 0.8413
According to the z-value, this gives a value of:
z = 1
The indicated IQ score is:
= mean + z value z standard deviation
= 100 + 1 x 15
= 115
Find out more on normal distributions at brainly.com/question/4079902
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