<h3>
Answer: -76 (choice C)</h3>
Explanation:
We're applying the dot product.
u dot v = 3*(-4) + (-8)*8
u dot v = -12 - 64
u dot v = -76
The idea is that we multiply the x coordinates together, and the y coordinates together separately. Afterward you add the products. The result of any dot product is a scalar value, aka a single number.
The dot product is useful in many applications. One of which is to determine if two vectors are orthogonal.
Answer: use this website https://www.symbolab.com/solver/polynomial-equation-calculator/%5Cleft(2x3%20%E2%88%92%203x%20%2B%2011%5Cright)%20%E2%88%92%20%5Cleft(3x2%20%2B%201%5Cright)%5Cleft(4%20%E2%88%92%208x%5Cright)
I think it is B. The perimeter is adding all the sides. If there isn’t a blank then the answer would be 2a + 2b, however in this problem only the AREA is taken away not perimeter.
Answer:
x=6
Step-by-step explanation:
Suppose x is 36÷6
x=36÷6
x=6
