Answer:
x can have two complex solutions, which are:
-2 + i
-2 - i
Step-by-step explanation:
2x² + 8x + 10 = 0
4x² + 16x + 20 = 0
4x² + 16x + 16 = -4
(2x + 4)² = -4
2x + 4 = √-4
2x = -4 ± i√4
2x = -4 ± 2i
x = -2 ± i
So x is equal to -2 + i and -2 - i.
Answer:
The values of sin θ and cos θ represent the legs of a right triangle with a hypotenuse of 1; therefore, solving for cos θ finds the unknown leg, and then all other trigonometric values can be found.
Answer:
D. difference of squares
Step-by-step explanation:
Both of the terms x^2 and 9 are squares, so their difference is the difference of squares. The factorization of that is a "special form" that can be usefully memorized.
a^2 -b^2 = (a -b)(a +b)
x^2 -9 = (x -3)(x +3)
Short Answer: 5/36
How many ways can you throw two 6 sided dice?
Since each dice has six sides, the total number of ways is 6*6 = 36 ways.
How many ways can an 8 be thrown? To make the differences easier to see use a green colored die and a red colored die.
Red Green
2 6
6 2
5 3
3 5
4 4 That's five different ways of getting an 8.
The probability is
5 / 36 <<<<< answer
Answer:
all answer wrong with you
Step-by-step explanation:
f(x)=3x-1
f(8)=3.8-1
=24-1
=23
f(g)=x2-x
f(8)=8.2-2
=16-2
=14
