Answer:
Well, if you use the quad formula you should get the answer. If you do not know what that means search it up!
Step-by-step explanation:
If you have an EFI system in your car, you're not supposed to press the accelerator because fuel gets pumped into the engine electronically. It is automatic. Having to press the accelerator before is a mark of older vehicles. Just start the vehicle regularly without pressing anything or doing anything special.
is conservative if we can find a scalar function such that . This would require
Integrate both sides of the first PDE with respect to :
(*)
Differentiate both sides of (*) with respect to :
Differentiate both sides of (*) with respect to :
So we have
and so is indeed conservative.
Answer:
b. -x + y = 0
Step-by-step explanation:
<u />
<u>Direct variation</u>:
Direct variation means "y varies directly as x”:
where k is the (non-zero) constant of variation.
To determine which of the given equations represents a direct variation, isolate y for each and compare with the <u>direct variation equation</u>.
<u>Equation a</u>
This is not a direct variation equation as there is an addition of -2.
<u>Equation b</u>
This is a direct variation equation where the constant of variation is 1.
<u>Equation c</u>
This is not a direct variation equation as y is <u>inversely proportional</u> to x.
<u>Equation d</u>
This equation does not include the variable x, and so is therefore not a direct variation equation.