55,890
31% of 81,000 is 25,110
81,000 - 25,110 = 55,890
Answer:
0.4
Step-by-step explanation:
drawing a triangle with each side correspondent to each of its measurements all you are doing is dividing the side that you would want to find its scale factor of, which in this case you would take AB and DE and have AB/DE dividing that and getting 0.4 as its scale factor.
M equals 3.
That's your answer
Answer:
h(3)=n(h_3)×3that is the answer
Answer:
z = 8.544[cos(20.6) + isin(20.6)}
Step-by-step explanation:
Given
8 + 3i
Required
Rewrite in trigonometric form.
The trigonometric form of a complex equation is
z = r[cosθ + isinθ]
Let a = 3 and b = 8
Where
r is calculated by
r² = b² + a²
And
θ is calculated by
θ = arctan(a/b)
Substituting 3 for a and 8 for b
r² = a² + b² becomes
r² = 3² + 8²
r² = 9 + 64
r² = 73
√r² = √73
r = √73
r = 8.544
Calculating θ
θ = arctan(a/b) becomes
θ = arctan(3/8)
θ = arctan(0.375)
θ = 20.556°
θ = 20.6 --- Approximated
Hence, z = r[cosθ + isinθ] becomes
z = 8.544[cos(20.6) + isin(20.6)}
