Answer:
B . 
Step-by-step explanation:
Given function is:

Sall h is used to denote minor change in function. The value of the new function f(x+h) will be calculated by putting x+h in place of x in the function.
So putting x+h in place of x

So, option B is the correct answer ..
y-3x^2+4 is the answer of your question
Answer:
The explanation is given below.
Step-by-step explanation:
Given for a triangle to be obtuse only one of the angles must be shown to be obtuse but for a triangle to be acute all three angles must be shown to be acute.
According to Pythagoras theorem for a right angled triangle which has one angle of 90° rest of two are acute.

Hence, by Pythagorean inequality

which gives the triangle is acute.
Hence, one acute angle with the Pythagorean inequalities theorem shows that the triangle is acute.








On simplifying, we get

<h2>Therefore, correct option is 1st option.</h2>