-4x^2+2y^2= b because you add y to the similar factors.
Answer: each pen costed him 2 dollars
Explanation: 24 - 10 = 14
14 / 7 = 2 $ per each pen
Answer:
0.18
Step-by-step explanation:
C is a subpath of A,
first P(A) = 0.6 since the line leading to A says .6
the probability of choosing C is 0.3, but first we have to assume A is chosen. The true probability is 0.3 * 0.6 = 0.18
Answer: 40%
Step-by-step explanation:
This represents this equation:
70*x =28
x=28/70=0,4
Multiply that with 100 to get the percentage.
Answer: 5 to the 2 power x4+100 divide by 2
Step-by-step explanation:
