Answer:
anser is 9 look at top for explanation
Step-by-step explanation:
givan that sally 5 classes is 10 7 9 11 8 so the anser is 9
Applying implicit differentiation, it is found that dy/dt when y=π/4 is of:
a-) -√2 / 2.
<h3>What is implicit differentiation?</h3>
Implicit differentiation is when we find the derivative of a function relative to a variable that is not in the definition of the function.
In this problem, the function is:
xcos(y) = 2.
The derivative is relative to t, applying the product rule, as follows:


Since dx/dt=−2, we have that:

When y = π/4, x is given by:
xcos(y) = 2.

Hence:


Since cot(pi/4) = 1, we have that:

Which means that option a is correct.
More can be learned about implicit differentiation at brainly.com/question/25608353
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5x+3x^4+15-7x^3
In standard form:3x^4-7x^3+5x+15
Degree:quartic i believe
# of terms:polynimial or 4 terms
Step-by-step explanation:
(3х - 7y = 13)×-2
6х + y = 7
-6х +14y = -26
6х + y = 7
15y=-19
y=-19÷15=-1.26
6x+-1.26=7
6x=7+1.26
6x=8.26
x=1.37
Answer:
2,380.13195
Step-by-step explanation:
turn 8.5 into .085
multiply 2193.67 by .085
add that to 2193.67