Answer:
BC = 1.71
Step-by-step explanation:
well to start we have to know the relationship between angles, legs and the hypotenuse in a right triangle
α = 70°
a: adjacent = BC
h: hypotenuse = 5
sin α = o/h
cos α= a/h
tan α = o/a
we see that it has (angle, adjacent, hypotenuse)
we look at which meets those data between the sine, cosine and tangent
is the cosine
cos α = a/h
Now we replace the values and solve
cos 70 = a/5
0.34202 = a/5
0.34202 * 5 = a
1.7101 = a
round to the neares hundredth
a = 1.7101 = 1.71
BC = 1.71
Answer:
x= 4
Step-by-step explanation:
Intersecting Chords Formula:
(segment piece) x (segment piece) = (segment piece) x (segment piece)
10*6 = 15*x
60 = 15x
Divide each side by 15
60/15 = 15x/15
4 =x
G(x) = 5x + 7. g(9) = 5(9) + 7 g(9) = 45 + 7 g(9) = 52
Use the formula of the future value of annuity ordinary
Fv=pmt [(1-r/k)^(kn)-1)÷(r/k)]
Fv=420×(((1+0.10÷2)^(2×15)−1)
÷(0.10÷2))=27,904.32
Hope it helps
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