Answer:
c
Step-by-step explanation:
If the dot product of the vectors is zero then they are perpendicular
(5, - 1) • (- 3, 6)
= (5 × - 3) + (- 1 × 6) = - 15 + (- 6) = - 15 - 6 = - 21 ≠ 0
Since product is not zero vectors are not perpendicular
24 is the answer to this equation
Answer:
Step-by-step explanation:
You are told that the diameter of a penny is 3/4 of an inch. The decimal equivalent is 0.75 inches.
r = d/2
r = 0.75/2 = 0.375 inches.
Area = pi r^2
pi = 22/7
r = 0.375
Area = 22/7 * 0.375^2
Area = 22 * 0.375^2/7
Area = 3.094 / 7
Area = 0.44196
If you retain this in fractions then the answer is 99/224
=======================
Area = 22 / 7 * 3/8 * 3/8
Area = 22/7 * 9/64
Area = 198 / 448 Both can be divided by 2
Area = 99 / 224
I did it the top way because I think it is the most common way to solve this question. Your teacher may not agree, but you should see both ways.
Area = 3.094 square inches.
Fraction = 3.