Answer:
The correct choice is C
Step-by-step explanation:
The given curve is described by the parametric equations:
Let us eliminate the parameter by making t the subject in the first equation and substitute into the second equation;
We substitute this into the second equation to get:
This is the equation of a parabola whose vertex is at (4,-2)
The correct choice is C
Answer:
16.8 is the answer
Step-by-step explanation:
(.40 x 42= 16.8)
It's super simple. Hope this helped!
The simpliest form is 6/5
<h3>
Answer:</h3>
<h3>
Step-by-step explanation:</h3>
If the trapezoid is isosceles, angles A and C are supplementary, so ...
... (4x+4) +(7x+11) = 180
... 11x +15 = 180 . . . . . . collect terms
... 11x = 165 . . . . . . . . . subtract 15
... x = 15 . . . . . . . . . . . . divide by the coefficient of x
And angles C and E are congruent.
... 4·15 +4 = 21y +1
... 63 = 21y . . . . . subtract 1
... 3 = y . . . . . . . . divide by the coefficient of y
Answer:
The solutions are 
and 
Step-by-step explanation:
we have
Divide by 
both sides
------> 
we know that
The formula to solve a quadratic equation of the form 
is equal to
in this problem we have
so
substitute
