a) area of a triangle = (base X height) / 2 = 16X9/2 = 72cm squared
b) area of a parallelogram = (base X height) = 26 X 14 = 364 in squared
c) area of a square = (base X width) = 11 X 11 - 121 yds sqaured
d) are of a trapezoid (the hardest) =
(top bases + bottom base) /2 all times height
(6 + 21) /2 times 8
126/2 times 8
63 times 8 = 504 ' squared
Y=11 is a function, because a function is a set of numbers where for you only have one input for every output. In this case it is a one kt one function because there is only one output for every input. Every input results in 11, therefore this is a function.
Your base in this is 6 :)
There are a few ways to solve this, the simplest of which is probably factoring. Start by finding factors of C (10) that add up to be B (-2).
fac(10) { -10, 1 ; -5, 2 }
Well, there are no factors of 10 that can add to b - so we will use the quadratic formula.
(-b +- sqrt(b^2 - 4ac)) / 2a
where a = 1, b = -2, c = 10
b^2 - 4ac = (-2)^2 - 4(1)(10) = 4 - 40 = -36
-b +- sqrt(-36) / 2a
(2 +- sqrt(-36)) / 2
sqrt(-36)
sqrt(-1 * 36)
sqrt(-1) * sqrt(36)
i * 6
6i
2 + 6i / 2 ; 1 + 3i
2 - 6i / 2 ; 1 - 3i
Solutions: 1 + 3i, 1 - 3i
Answer:number one=0.4667 and two is 0.44444444444
Step-by-step explanation:
