Answer:
Step-by-step explanation:
12a)To rationalize the denominator, multiply the denominator and numerator by √5.
b) (a+b)² = a² + 2ab + b²
(1 +√3)² = 1² + 2*1*√3 + (√3)²
= 1 + 2√3 + 3
= 4 + 2√3
a = 4 ; b =2
13) (a + b)(a - b) = a² - b²
Answer:
1.95 * 10^7
Step-by-step explanation:
19.5 million
write in standard notation
19500000
convert to scientific notation (by making the number such that the largest digit is in the one's place)
1.95 * 10^7
Answer:
108, 108, 72
Step-by-step explanation:
Vertical angles are congruent and if the measure of 1 of the angles is 72 degrees and straight lines equal 180 degrees you have to subtract 72 from 180 which equals 108.
Answer:
fb
Step-by-step explanation:
Answer:
1/12 I think this is it if not sorry
