Answer:
It doesn't
Step-by-step explanation: cos230 - sin230= .123
cos60=.5
Answer:
42
Step-by-step explanation:
If y equals 3, then substitute y for 3, getting 45 - 3.
45 - 3 is 42, so that's your answer.
Hope this helped!
Answer:
7
Step-by-step explanation:
5! = 1×2×3×4×5
they want 4 numbers that = 120
so
2x3x4x5 = 120
2 + 5 = 7
Answer: this should help
sorry that was not right
but this is
Step-by-step explanation:
Solve your system of equations.
2x+y=1;4x+2y=−1
Solve 2x+y=1 for y:
2x+y+−2x=1+−2x(Add -2x to both sides)
y=−2x+1
Substitute (−2x+1) for y in 4x+2y=−1:
4x+2y=−1
4x+2(−2x+1)=−1
2=−1(Simplify both sides of the equation)
2+−2=−1+−2(Add -2 to both sides)
0=−3
Answer: No solution. C)
