Try this option:
A. f(4)=7 - false; explanation: x=4, it means that x>0 and x²-1=4²-1=15 ⇒ f(4)=15.
B. f(1)=0 - true; explanation: x=1, it means that x>0 and x²-1=1-1=0.
C. f(-1)=2 - true; explanation: x=-1, it means that x<0 and -x+1=1+1=2.
D. f(-2)=0 - false; explanation: x=-2, it means that x<0 and -x+1=2+1=3 ⇒ f(-2)=3.
The volume is given by the triple integral

which evaluates to

where the coefficient 4 comes from integrating with respect to

, and the integrand

comes from integrating with respect to

.
Answer:
89.6 meters per minute
Step-by-step explanation:
Opposite angles in a parallelogram have equal measure.
The measure of angle TUV is 78 degrees
The given parameters are:


Start by calculating angle RSV.
--- angles in a triangle
So, we have:


Subtract 102 from both sides

Angles RSV and TUV are corresponding angles.
So, we have:

Rewrite as:

Hence, the measure of angle TUV is 78 degrees
Read more about parallelograms at:
brainly.com/question/12186483