Answer:
x=160
Step-by-step explanation:
x×126=24×840

Answer:
There is no greatest perfect square of 1290
Step-by-step explanation:
In #12, substitute into the given function the x values {-3, 0, 6} to obtain the range: the function takes on the following values: {0, -1, -3}. Thus, the range for #13 is {0, -1, -3}.
Do the others in precisely the same way.
Answer:
Area of the shaded region = 23.33 in²
Step-by-step explanation:
Area of a sector = 
Where θ = Central angle subtended by an arc
r = radius of the circle
Area of the sector BCD = 
= 52.36 in²
Area of equilateral triangle BCD = 
= 
=
in²
= 43.30 in²
Area of the shaded portion in ΔBCD = 52.36 - 43.3
= 9.06 in²
Area of sector CAD = 
= 39.27 in²
Area of right triangle CAD = 
= 
=
= 25 in²
Area of the shaded part in the ΔACD = 39.27 - 25
= 14.27 in²
Area of the shaded part of the figure = 9.06 + 14.27
= 23.33 in²