B. 18
Explanation
The dot product or scalar product is an algebraic operation that takes two equal-length sequences of numbers (usually coordinate vectors), and returns a single number
it is given by.
so, we can find the dot product by multiplying the corresponding values in each vector and adding them together
Step 1
get the dot product
let
then
therefore, the answer is
B. 18
I hope this helps you
The expressions 100×10 and the more complicated
(100 - 4a)(10 + a)
are calculating annual (expected) revenue. In 100×10 the 100 is the number of decks and the 10 is the price per deck. In (100 - 4a)(10 + a) the 100-4a is the number of decks and the 10+a is the price per deck. So a must be the amount the price increases.
Answer: amount of price increase, last choice
Answer:30
Step-by-step explanation:because it is very diffeculy sorry
supplementary angles
Step-by-step explanation:
Two angles are called adjacent angles if they have a common side. Two angles are called complementary angles if their sum is 90 degree i think thats it but jf its not its vertical angles