Answer:
−
6
≤
y
<
2
Explanation:
Move all terms not containing
y from the center section of the inequality.
Sqrt(-12) = sqrt( - 2 * 2 * 3) = 2 sqrt(3) i
F(x) = -9x^2 + 7x + 2
Factorising we get:
f(x) = (x + 1) (-9x + 2)
The solutions are x = -1 and 2/9ths
Answer: Use this formula
Area = (number of sides × length of one side × apothem)
Step-by-step explanation: The formula to calculate the area of a regular polygon is, Area = (number of sides × length of one side × apothem)/2, where the value of apothem can be calculated using the formula, Apothem = [(length of one side)/{2 ×(tan(180/number of sides))}].
Perimeter of rectangle = 2L + 2W
Area = L x W
L x W = 50
2L + 2W = 30
There's a quick way to determine this. Find the factors of 50 as a product.
2 x 25, 5 x 10.
We can use these factors as sides (dimensions).
2x2 + 2x25 = 4 + 50 = 54, incorrect factors.
2x5 + 2x10 = 10 + 20 = 30, correct.
Your dimensions are 5 and 10.