Recall the dot-product is just <a,b> • <c,d> => a*c + b*d.
therefore here is just 5*(-8) + 7* 2, or namely -26.
Answer:
False
Step-by-step explanation:
Umbrellas could be used for different reasons besides rain.
Answer:
23
Step-by-step explanation:

let's plug in the value of y :
Answer:
4y²-1/4 is the required answer
Step-by-step explanation:
