Angle θ between two vectors is given by,
; where
;
and
.
Therefore,
Answer:
y= 4x + 10
Step-by-step explanation:
It would equal this because mark buys 4 boxes x and he donated 10 dollars. So it would be that. You could also plug in 5 for x so it could be
y= 4(5) +10
But, either one should work.
Answer:
h = 9 ft
Step-by-step explanation:
Assume the diagram is like the one below.
∆ABD is a right triangle.
We can use Pythagoras' Theorem to find the height h.
11,13,15
I think have a good day
Answer:
perimeter = 26
Step-by-step explanation:
<u>perimeter of a rectangle = 2L + 2W</u>
where:
L = 5x² - 2
W = 7 + 3x
Let x = 1
find: Perimeter
-----------------------------------------------
substitute values into the formula:
P = 2(5 * 1² - 2) + 2(7 + 3 * 1)
P = 2(3) + 2(10)
P = 6 + 20
P = 26
therefore,
the perimeter = 26