I am using the Descartes Rule of Signs.
f(x) = 3x^4 - 5x³ - x² - 8x + 4
positive zero: 2 or 0.
x = + - - +
There are 2 sign changes : + to - ; - to +.
negative zero: 1.
f(-x) = 3(-x^4) - 5(-x³) - (-x²) - 8(-x) + 4
f(-x) = 3x^4 + 5x³ - x² + 8x + 4
-x = + + - + +
there is only 1 change of sign. - to +.
There are 2 or 0 positive solutions and 1 negative solution.
Answer:
1
Step-by-step explanation:
Hope it will help you.
If QR is a median, then:
We have NO = 30, MP = 9x - 42 and QR = x + 15. Substitute:
<h3>Answer: A. 6</h3>
Answer:
- C. negative linear association
Step-by-step explanation:
<u>We have ordered pairs:</u>
- (1, 32), (2, 26), (3, 20), (4, 14), (5, 8)
<u>Looking at the sequence of y-values:</u>
We see it is the arithmetic progression with common difference of -6.
It means the function representing this relationship is linear.
Correct option is C.
Answer:
91
Step-by-step explanation:
7 (2 + 11)
Use PEMDAS
7 (13) = 91
