(2,5) is not on first line: 4*(5)+2 = 22 not 4 - first statement is false
(-4,2) is <span>on first line: 4*(-4)-2 = -18
</span>(-4,2) is <span>on second line: 2*(-4)-(2) = -10 - second statement is false</span>
(2,5) is not <span>on second line: 2*(-5)-2 = -12 not 8 - third statement is true
(-4,2) is on bought lines - 4rd statement is false</span>
Step-by-step explanation:
Area = l × b
= 9ft × 8ft
= 72ft²
Answer:
$7.80
Step-by-step explanation:
.40C-.20=T
C=# of chocolate bars
.20 is the coupon
C=20
.40*20-.20=Total
8-.20=Total
$7.80
There is a difference of 11 but as a percent that would be 44%
Answer:
C
Step-by-step explanation:
In a right triangle, the side opposite the right angle is the largest side as the right angle represents the largest angle in the triangle. Therefore, as 17.5 is opposite the right angle, we can say that AB²+10²=17.5², and √(17.5²-10²)=AB = 14.4
Using sohcahtoa, we can establish that
sin(∠C) = opposite/hypotenuse = 14.4/17.5, and
arcsin(14.4/17.5) = ∠C = 55°
Because the angles in a right triangle add up to 180 degrees, we can say that ∠A+∠B+∠C = 180°, so ∠A + 90 + 55 = 180 and ∠A = 35°