Answer:
The answer is A
Step-by-step explanation:
A-the set of all rational numbers and the set of all real numbers
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Answer:
The combined average is 94%
Step-by-step explanation:
for first period, number of students =40
average =96%
for second period, no of students =20
average =90%
but 
let 
=sum of students for the first period
=sum of students for the second period
for first period;
for second period,
therefore the combined average = 
that is 
so combined average is 94%
A geometric sequence is one that is multiplied by the same number, and an arithmetic sequence is one that is added by the same number.
2 * 2 = 44 * 2 = 8 - This works, so will be geometric
A^2 + 3^2 = 5^2
a^2 + 9 = 25
a^2 = 16
a^2 = (square root)16
a = 4
1000x2x15=30000
30000-1000x15=15000
1000x15x5=75000
75000-1000x5=70000
100x15x15=22500
22500-15x100=21000
Investment of 1000 at 2% simple interest for 15 years will earn the least simple interest
Investment of 1000 at 15% simple interest for 5 years will earn the most simple interest
