4. a) How many digits are there to the right of the decimal point if you
write this number in standard form?
How do you know?
5 x 10 power 4 + 6 x 10power-7 + 5 x 10power-9 +
9×10power-11 + 4 x 10power-13
b) Could you write the number using
20 digits after the decimal point?
Explain your thinking
c) Is the number greater than or less
than 5 x 10power4? How do you know?​

60%

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:

answer: 30

step-by-step explanation: its 30 because im a basketball player and stephen curry hits most of his shots so if you put 30 you might make the shot goodluck