Answer:
4-9y^2
Step-by-step explanation:
(2+3y)(2-3y)
2*2
2*-3y
3y*2
3y*-3y
4-6y+6y-9y^2
4-9y^2
Answer:
You can buy 5 bags of chips with 25 dollars
Step-by-step explanation:50 divided by 9 equals 6 so I multiplied it by 5 because it hasnt gone over 25 and I got 21.45
Answer:
19/30
Step-by-step explanation:
We need to get a common denominator of 30
4/5 *6/6 = 24/30
1/6 *5/5 = 5/30
4/5 - 1/6
24/30 - 5/30
19/30
The diagonal AC, along with the base AB and length BC, forms a triangle. The triangle's dimensions are:
AC = 18
∠CAB = 20°
AB = ?
∠ABC = 130°
BC = ?
∠BCA = 180 - 20 - 130 = 30°
Thus, we may apply the sine rule:
sin(BCA) / AB = sin(ABC) / AC
AB = sin(30) * 18 / sin(130)
AB = 11.7 inches