How is the product of a complex number and a real number represented on the complex plane?

Consider the product of −2+8i and 5.

hello,

b) 62.47% of the students are between 14 and 18 years old.

step-by-step explanation:

mean = 15 and standard deviation = 2

student between 14 to 18

formula used z-score

for age 14 , z score

using z-table , p(z> -0.5)=0.3085

for age 18 , z score

using z-table , p(z< 1.5)=0.9332

p(-0.5< z< 1.5)=0.9332-0.3085 = 0.6247

thus, 62.47% of the students are between 14 and 18 years old.

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step-by-step explanation:

the answer would be 44.79

plz mark brainliest

step-by-step explanation:

could u provide us some answer choices or hmm idk maybe a table for us to anser with ? ?

the answer is b.

64

step-by-step explanation:

c=2πr=2·π·8≈64