( 5.3 * 10^4 ) ( 4.2*10^3)
Multiply the numbers and add the exponents
(5.3 * 4.2) * 10 ^ (4+3)
22.26 * 10^7
now we have to adjust since more than 1 number is in front of the decimal
2.26 * 10^(7+1)
2.26*10^8
The general form for this curve is:
Now find A,B given 2 points:
Solving this system yields:
Answer:
A. Approximately 68%
Step-by-step explanation:
Number of pieces of popcorn in a bucket is normally distributed.
Mean = μ = 1610
Standard deviation = б = 10
We know that in normal distribution, approximately 34% of bags will fall with in one standard deviation on one side. On both sides within the range of 1 standard deviation, 34 + 34 = 68 % of bags will fall.
A table of normal distribution about mean is attached for better understanding.
Our range is:
1600 to 1620
1610 - 10 to 1610 + 10
μ ± б
mean ± 1 standard deviation
Our range is within 1 standard deviation. Hence, Approximately 68% of buckets contain between 1600 and 1620 pieces of popcorn.
A) 12 40/30 is equal to 4/3. 4/3=16/x 4x =48. X=12
First find what j(5) is
j(5)=-4(5)=-20
so
h(j(5))=h(-20)=-20-1=-21