Answer:
3/4
Step-by-step explanation:
Tan A = opp/adj
Tan A = 30/40
= 3/4
You can make the equatin: y=15x+22
X is the number of weeks
Y is the total amount of money needed
Plug in 120 for y and solve for x
120=15x+22
98=15x
x=6.53
But the answer is 7 weeks because we have to round up so he gets paid for the whole week
Answer:
o.4 and 3.4
Step-by-step explanation:
eye ballss
In both cases you may well benefit from graphing the functions.
Do you recognize f(x) = (x + 1)^2 - 1 as a quadratic function, whose graph is that of a parabola that opens up? By comparing this to y = a(x-h)^2 + k, we see that a=1, h= -1 and k = -1. The vertex is at (h,k), which here is the point (-1, -1). This is the minimum value of the function. Thus, the range of this function is [-1, infinity).
Now for the function f(x) = 7x - 11: This is a linear function whose graph is (surprise!) a straight line. When x increases, y increases, without limits to either. Similarly, when x decreases, y decreases.
Thus the range includes all real numbers: (-infinity, infinity).