4 times the sum of the least and greatest integers ⇒ 4(n + n +2) = 4n + 8
12 less than three times the least integer ⇒ 3n - 12
4n + 8 = 3n - 12
4n - 3n + 8 = 3n - 3n - 12
n + 8 - 8 = -12 - 8
n = -20
-20, -19, -18 are the integers and the least is -20
It's number C, because if you get the sum of the expressions you get the perimeter of 9a + 4b - 5.
Answer:
171.02 ft.
Step-by-step explanation:
Please see the attached image
sin(17)=50/x
x=50/sin(17)≈171.02
To solve this
problem, we must remember that the sum of interior angle of a polygon is:
Sum of
interior angles = (n – 2) * 180˚
So, we can say
that:
Sum of
interior angles = angle A + angle B + angle C + angle D = (4 – 2) * 180˚
Where,
angle C + angle
D = 110 + 70 = 180˚
Therefore
substituting this value:
angle A + angle
B + 180˚ = 2 * 108˚
angle A + angle
B = 360˚ - 180˚
angle A + angle
B = 180˚ (answer)
Hence we can
also conclude that,
<span>angle A + angle
B = angle C + angle D</span>
