11/22/16 1ST Flashcards
(7 cards)
1
Q
^2 & ^4 ? possible numbers?
A
^2 no 2.3.5.6
^4 only 0.1.5.6.
2
Q
when ^9 is the same as ^8 = possible positive number?
A
- 6
3
Q
1/ (3/4)n + 1/ n = 1/6 solve! for n
A
7 /3n = 1/6 7*6 / 3n =14
4
Q
if a, b, c sides of a triangle area of the triangle equation?
solve 2,3,4 each side
A
p= (a+b+c)/2 root p(p-a)(p-b)(p-c)
3root 15 /4
5
Q
sales in 1999 10 % greater than 1998 sales in 2000 equal to 1998 , what percent smaller than 1999 ? sales in 2000?
A
10 % up back to original sales number = 9.1 %
6
Q
obtuse triangle rule?
A
a^2 +b^2=
7
Q
right triangle ratio ?
A
3: 4:5
18: 24:30
5:12:13
