Answer:
A Y-3
Step-by-step explanation:
We know Robert is Y years old and Calvin is 3 years younger. Y-3. For example, Robert is 20, then Calvin would have to be 17. Y=20. 20-3 = 17
Answer:
sec Θ = 
Step-by-step explanation:
Using the trigonometric identity
sec²Θ = tan²Θ + 1
Since 270° < Θ < 360° ← that is fourth quadrant, then
sec Θ > 0, thus
sec²Θ = (-
)² + 1 =
+ 1 =
, then
sec Θ =
= 
Answer:
(-3+
) /2, (3+
) / 2 which is approx -3.791 and 0.791
Step-by-step explanation:
i used the quadratic formula: [-b± sq rt (b² - 4ac) / 2a]
in this problem, a = 1, b = 3, and c = -3
Answer: 20/3
Step-by-step explanation: 3*6=18+2=20