Answer:
60°
Step-by-step explanation:
We'll begin by calculating EC. This can be obtained as follow:
Angle EAC = 39°
Hypothenus = EA = 3.7 m
Opposite = EC =?
Sine EAC = Opposite /Hypothenus
Sine 39 = EC / 3.7
Cross multiply
EC = 3.7 × Sine 39
EC = 2.3 m
Finally, we shall determine angle BEC. This can be obtained as follow:
Adjacent = EC = 2.3 m
Hypothenus = BC = 4.6 m
Angle BEC =?
Cos BEC = Adjacent / Hypothenus
Cos BEC = 2.3 / 4.6
Cos BEC = 0.5
Take the inverse of Cos
BEC = Cos¯¹ 0.5
BEC = 60°
Thus, angle BEC is 60°
Answer:
= 7
Step-by-step explanation:
S=18€/5= 11.31 is the best option
Answer:
The answer is D ⇒ -4log(-x + 4)
Step-by-step explanation:
From the graph we chose the point of x-intercept (3 , 0)
∵ f(x) = -4log(-x + 4)
∴f(3) = -4log(-3 + 4) = -4log(1)
∵ log(1) = 0
∴f(3) = 0
If x = 0
∴ f(0) = -4log(0 + 4) = -4log4 = -2.40 ⇒ same value on the graph
∴ The answer is (D)
