Matrices always go row x column.
Count the rows: 4
Count the columns: 3
The matrix is a 4 x 3 matrix
Answer:
a.
d.
Step-by-step explanation:
Other answer choices would not work. y= means you can substitute what y= into the opposite equation for "y."
Yo bro this is simple. what you need to do is assess the vocabulary
complement=90 degrees
supplementary=180 degrees
so you use the number you were given and subtract it from the complement and supplement angles.
180-56.9=123.1 which is the answer to the supplementary of angle j
90-56.9=33.1 which is the answer to the complementary angle of j.
so 123.1 and 33.1
P.S- I might be wrong but use at your own risk
The Answer is going to be B
Let
x = time of Byran's work
x + 10 = time of Andy's work
Rate is usually expressed a reciprocal. The total rate will be 12 minutes.
1/x + 1/(x + 10) = 1/12
The value of x will be 20 minutes.
Therefore Byran can take 20 minutes while Andy can take 30 minutes.
