<span>These ones are correct:
Multiply the value of the first variable by one of the original equations to solve for the second variable.
</span><span>Solve for one of the variables
</span><span>Substitute the value of the known variable into one of the original equations to solve for the unknown variable.</span>
Answer:
Amplitude:2, period:0.9 and phase shift:7
Step-by-step explanation:
In a function with the form y=Asin(Bx+c)+D, and given the function f(x) = –2sin (7x + 7), we get that:
A is the amplitude: 2
Period is given by 2pi/B, so 2pi/7=0.9
Phase shift is c: 7
Answer:$17.50 remaining
Step-by-step explanation: 0.25 x 30 = 7.50
7.50 - 25.00 = $17.50 remaining
Answer:
D
Step-by-step explanation:
6 - 2x = 18
2x = - 12
x = - 6