With some simplification,
cos⁻¹(x) - 5 cos⁻¹(x) - π/3 = 2π/3
becomes
-4 cos⁻¹(x) = π
or
cos⁻¹(x) = -π/4
However, the inverse cosine function has a range of 0 ≤ cos⁻¹(x) ≤ π, so there are no solutions to this equation.
Answer:
x <= -42.5
Step-by-step explanation:
65 - 2x >= 150
-2x >= 150 - 65
-2x >= 85
2x <= -85
x <= -85/2
x <= -42.5
Substitute the values in the expression
b-a=3-2=1
answer b-a=1
Answer:
7 miles
Step-by-step explanation:
a mile each day so in a week that is 7 days he will swim 1×7 equals 7miles
Wouldn't you be 17 cause plus one is 2000 and then one plus 16 equals 17
