Answer
P+3
Step by step explanation
12+3=15
We have 26 - 18 = 8; 34 - 26 = 8; 42 - 34 = 8; (an arithmetic progression)
We use the formula an = a1 + (n-1)x8 (the explicit formula)
So, an = 18 + (n-1)x8 ;
Then, an = 8n + 10;
Finally, a52 = 8x52 + 10 = 426 (the 52nd term);
Answer:
36°, 36° and 108°
Step-by-step explanation:
let the equal angles be x then the third angle = 3x
The sum of the 3 angles in a triangle = 180°, thus
x + x + 3x = 180, that is
5x = 180 ( divide both sides by 5 )
x = 36
and 3x = 3 × 36 = 108
The 3 angles are 36°, 36° and 108°
Simplify the radicand by breaking the radicand up into a product of known factors.
Answer: -20<span>√7
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