Answer: This is not a function.
Step-by-step explanation: A function CANNOT have a repeating x-value.
X^2+2x= -8
x^2+2x+1= -8+1
(x+1)^2= -8+1
(x+1)^2=-7
x+1= √-7
The answer is No Solution because the root of a negative number is not a real number.
<u><em>Answer:</em></u>
K = -47.5
<u><em>Explanation:</em></u>
The zero of an equation is a number that when substituted in the equation gives the result zero
<u>We are given that:</u>
4 is a zero of f(x) = 3x³ + kx - 2
<u>This means that:</u>
When we substitute x = 4 in f(x) the result will be zero
<u>Therefore:</u>
3(4)³ + k(4) - 2 = 0
<u>Now, we simply solve for K as follows:</u>
3(4)³ + k(4) - 2 = 0
3(64) + 4k - 2 = 0
192 + 4k - 2 = 0
190 + 4k = 0
4k = -190
k = -47.5
Hope this helps :)
Answer:
ABC = 60
BCA = 90
CAB = 30
Step-by-step explanation:
5x+9x+6+90 = 180
5x+9x = 84
14x = 84
x = 6
5x = 30
9x+6 = 60