The answer is on the paper as an attachment.
8 numbers
3 numbers greater than 24
1 number less than 21
3+1=4
4/8=1/2
.5
Answer:
<u>Sum of n terms of a GP:</u>
#1
- a₁ = 5
- r = 2
- n = 9
- S₉ = 5(2⁹ - 1)/(2 - 1) = 5(511) = 2555
Correct choice is C
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#2
- a₁ = 12
- r = 1/2
- n = 5
- S₅ = 12(1 - (1/2)⁵)/(1 - 1/2) = 12(31/32)/(1/2) = 23.25
Correct choice is A
Answer:
5x^2+1
Step-by-step explanation:
2x^2 and 3x^2 are like terms so just add them which gives 5x^2.
2 and -1 are like terms so combine them to make 1.
For this case we have that by definition, the sum of the internal angles of a triangle is 180 degrees. So, we have:
We add similar terms:
Answer:
Option D
