so what you do is
a^2-a-20
see, the number in front of the a^2 is 1, so now we do
look at the number infront of the a and the number at the end
-1 and -20
whhat 2 numbers multiply to get -20 and add to get -1
trial and error
-20+1=-19, nope
-10+2=-8 nope
-5+4=-1, yes
(a-5)(a+4) is factored
Answer: P=313 and C=626
Step-by-step explanation:
939=2x+x
939=3x
313=x Printer is 313 and computer is 626
626+313=939
Answer:
arc AB = 12.40°
Step-by-step explanation:
diameter = 7.9 x 2 = 15.8
circumference = 15.8 x 3.14 = 49.612
since the central angle of arc AB is 90 °
90/360 x 49.612 = 12.40
Base B (aka p) is equivalent to 18
p=18
Answer:
1.25
Step-by-step explanation:
You're welcome!