Convert from scientific notation to standard form.

2: 9000

3: 8.2

4: .008291

5: 1939

6: .0034

7: 4370000

Step-by-step explanation:

2: 10^3 is 1000, 1000*9=9000

3: 10^0 is 1, 8.2*1=8.2

4: 10^-3=.001 so you move the decimal point 3 to the left

5: already explained

6: already explained

7: 10^6 is 1000000, so you move the decimal point 6 to the right

I hope this helps :)

I’m sorry to ask but I would love a brainliest

just needed some points but try socratic

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: