(x-5)(x+3), since -5 and 3 are a factor of 15 and they add up to -2, that determines your factored form.
1. You could break them up:
10+30+20+10=70
6+5+4+4=19
70+19=89
2. Separate to groups:
16+35=51
24+14=38
51+38=89
50 yards would be the product of 150 feet :D
Answer: 141.7 ct
Step-by-step explanation: It's quite easy to notate this. Just move the decimal point two units to the right, and there's your notation!
A² + b² = c²
a² = c² - b²
a² = 9² - 6²
a² = 81 - 36
a² = 45
a = √45
a ≈ 6.7082
a = 6.7