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sen x = 3/5 eleva ao quadrado ambos os lados
sen² x = (3/5)²
Tem que partir da relação fundamental
sen²x + cos²x = 1
(3/5)² + cos² x = 1
cos² x = 1 - (3/5)² = 16/25
cos x = V(16/25 = 4/5
b ) tg x = sen x / cos x = 3/5 / 4/5 = 3/5 * 5/4 = 3/4
c) cotg x = cosx / sen x = 1 / tgx = 1/ (3/4 = 4/3
d) sec x = 1/ cos x = 1 / 4/5 = 5/4
e) cossec x = 1 / sen x = 1/ 3/5 = 5/3
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edson</span>edson <span>· 9 anos atrás</span>
Yes, the answer is 54 because you have to multiply 18 by 3 to get 54 since it is an equilateral triangle
12/100
6/50
3/25
once fully simplified 3/25 is your answer
Complete question is;
The function V(r) = (4/3)πr³ can be used to find the volume of air inside a basketball given its radius. What does V(r) represent?
A) the radius of the basketball when the volume is V
B) the volume of the basketball when the radius is r
C) the volume of the basketball when the radius is V
D) the radius of the basketball when the volume is r
Answer:
B: V(r) is the volume of the basketball when the radius is r.
Step-by-step explanation:
The function V(r) = (4/3)πr³ means that the volume of air inside the basketball depends on the radius of the basketball.
Now, this means that the radius in this case will be the independent variable while the volume is called the dependent variable.
Thus, V(r) is the volume of the basketball when the radius is r.
DE = CD - AB = 18 - 14 = 4 in
Area of ADE = 1/2 * 4 * 7 = 14 in²
Area of ABCE = 14 * 7 = 98 in ²
Area of ABCD = 14 + 98 = 112 in² ← answer
