Answer:
(2x+1)(x+7)
Step-by-step explanation:
Guess and Check
(2x+7)(x+1) = 2x^2+9x+7. NOPE
(2x+1)(x+7) = 2x^2+15x+7. YES
Answer:
5 tulips.
Step-by-step explanation:
Given:
The expression for the cost of the tulips is
Where, is the number of tulips.
Now, Joanna has .
So, number of tulips that can be bought with the above amount can be obtained by substituting for cost. This gives,
.
As the number of tulips cannot be in decimals or fractions, so the maximum number of tulips that can be bought will be 5.
Answer:
Step-by-step explanation:
Given
(0, 1, 0)
The vector equation is given as:
Substitute values for x, y and z
Differentiate:
The parametric value that corresponds to (0, 1, 0) is:
Substitute 0 for t in r'(t)
The tangent line passes through (0, 1, 0) and the tangent line is parallel to r'(0)
It should be noted that:
The equation of a line through position vector a and parallel to vector v is given as:
Such that:
and
The equation becomes:
By comparison:
and
The parametric equations for the tangent line are: