Answer:
480
Step-by-step explanation:
there are 60 minutes in an hour, so multiply 8x60=480
Answer:
39
Step-by-step explanation:
Erica knits 18 squares on Monday. She knits Tuesday through Thursday which is 3 days. She knits 7 squares each day making it 21 total squares these days. For the whole week, she has knitted 18 + 21 = 39.
When working with two equations (aka a system of equations), the solution is (or the solutions are) where the graphs intersect.
If they intersect once, there's one solution.
If they intersect twice, there are two solutions.
The solution IS the point(s) of intersection.
Every point on a line is also a solution to the equation that makes the line. Since that interseciton point is on both lines, it's a solution for both lines.
To prove that tan(u - v) does not equal tan u - tan v, we start by assuming values for u and v.
To do this, we assume the following values


So, we have:

Substitute the assumed values for u and v

Subtract 45 from 75

Using a calculator, calculate the values of tan(30), tan(45) and tan(75)
So, we have:

Subtract 1 from 3.7321

Notice that the expression on the left-hand side and the expression on the right-hand side are not equal.
Hence,
is true
Read more about proofs of trigonometry at:
brainly.com/question/22698523