F(t) = 2(0.4)^t
To solve f(-2) we should substitute t = -2 into the equation:
f(-2) = 2(0.4)^(-2)
= 2(6.25)
= 12.5
Answer:
6.7 cm
Step-by-step explanation:
To make use of the Law of Sines for finding b, you need to know the missing angle B. Since the sum of the angles of a triangle is 180°, you can find angle B as ...
B = 180° -82° -55° = 43°
Now, you put the numbers you know into the formula given and solve for b.
sin(A)/a = sin(B)/b
sin(55°)/(8 cm) = sin(43°)/b
Cross multiplying gives ...
b·sin(55°) = (8 cm)·sin(43°)
and dividing by the coefficient of b gives you ...
b = (8 cm)·sin(43°)/sin(55°) ≈ 6.7 cm
Answer:
Thank you so so much!!!
Step-by-step explanation:
You're amazing, generous, and extremely kind, so don't ever forget that <3
Have an amazing day ❤