Answer:
Step-by-step explanation:
Remark
f(x) = 9x^2 - 5x + 3 is given. The notation means that wherever you see and x on the right, you replace it with the x in the brackes on the left. f(3) is a direction, not anything you have to adjust or manipulate.
Solution
f(-3) = 9*(-3^2) - 5*(-3) + 3 (-(3))^2 = -3 * -3 = 9 two minuses make a +
f(-3) = 9*(-3)(-3) + 15 + 3 -3 times an operation of minus equals a +
f(-3) = 9 * 9 + 15 + 3
f(-3) = 81 + 15 + 3
Answer: f(-3) = 99
6+1/3+5/8
6+1x8/3x8+5x3/8x3
6+8/24+15/24
6+8+15/24
6 23/24
Answer: 6 23/24
Complex numbers multiplication is commutative.
so
given
= (2+i)(1+2i) * (3-i)(3+i) * (1-i)
|(2+i)(1+2i)| has 5 as its absolute value and geometrically thinking its argument is pi/2. so
(2+i)(i+2i) = 5i
and obviously
(3+i)(3-i) = 10
so the answer is
50i * (1-i) = 50 + 50i
maybe, I think...
Answer:
x = 0.76
Step-by-step explanation:
plugged it into calculator
