The Math 123 book includes about 230 pages (not including the back parts of the book). If you aim to complete 65% of all the pag
1 answer:
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Answer:
A.6.2i-4.2 j
Step-by-step explanation:
We are given that
We have to find the projection of w on to u.
The project of vector a on b
=
Using the formula
The projection of w on to u
The projection of w on to u=6.2i-4.2j
Hence, option A is true.
Answer:
Step-by-step explanation:
we are given the zeros and a point where it goes through of a quadratic equation
remember that when the roots are given then the function should be
where a is the leading coefficient and x1 and x2 are the roots
substitute:
simplify:
now the given point tells us that when x is 2 y is -14 therefore by using the point we can figure out a
substitute:
simplify parentheses:
simplify multiplication:
divide both sides by -7:
altogether substitute:
since it want the equation y should be
recall quadratic equation standard form:
so simplify parentheses:
distribute:
hence,
the equation of the parabola in standard form is <u>2</u><u>x</u><u>²</u><u>+</u><u>4</u><u>x</u><u>-</u><u>3</u><u>0</u><u>=</u><u>0</u>