Answer:
Step-by-step explanation:
One of four in number form is 1/4 this is the only thing I can tell you without knowing what the answer choices are or what the question is
Change all to decimal:
1/2 = 0.5
0.25 = 0.25
4/5 = 0.8 ✔
2/9 = 0.222
0.48 = 0.48
8/11 = 0.72 <span>✔</span>
There are 2 numbers greater than 0.5 or 1/2.
Answer: 8/11 and 4/5
Hope this helped☺☺
Answer:
f(x) is concave up whenever:
B. 3x²−10 is positive
f(x) is concave down whenever:
A. 3x²−10 is negative
The points of inflection of f(x) are the same as:
B. the zeros of 3x²−10
Step-by-step explanation:
Given the function f(x) = 1 / (x²+10)
We can determine the concavity by finding the second derivative.
If
f"(x) > 0 ⇒ f(x) is concave up
If
f"(x) < 0 ⇒ f(x) is concave down
Then
f'(x) = (1 / (x²+10))' = -2x / (x²+10)²
⇒ f"(x) = -2*(10-3x²) / (x²+10)³
if f"(x) = 0 ⇒ -2*(10-3x²) = 0 ⇒ 3x²-10 = 0
f(x) is concave up whenever 3x²−10 > 0
f(x) is concave down whenever 3x²−10 < 0
The points of inflection of f(x) are the same as the zeros of 3x²-10
it means that 3x²-10 = 0
Here’re the two points. Another one is (3,3)
