Once you know the height and width, multiply them to get the area of the square.<span> To </span>find<span> the perimeter of the square, add all four sides </span>together. <span>To </span>find the area of a triangle<span>, multiply </span>together<span> two of the sides not the hypotenuse and then multiply that figure by 1/2.</span>
Answer is -4. good luck !
<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:.
Step-by-step explanation:
Answer:
Step-by-step explanation:
a.
See attached diagram.
b.
