Answer:
-1.2
To solve for x, we need to add 7 to both sides
5x - 7 + 7 = -13 + 7
5x = - 6 = -1.2
Answer: n = 35/71
Step-by-step explanation:
35 - 2n = 69n
We can add 2n to both sides:
35 = 71n
We can divide both sides by 71:
n = 35/71
Answer:
The answer to your question is the letter C
Step-by-step explanation:
Data
sec Ф = 9/2
tan Ф = ?
To solve this problem use trigonometric functions.
1.- The first condition is that the angle must be in the fourth quadrangle
(270° < Ф < 360°).
2.- Write the trigonometric function sec.
sec Ф = hypotenuse / adjacent side and sec Ф = 9/2
then, hypotenuse = 9 adjacent side = 2
3.- Use the Pythagorean theorem to find the adjacent side.
Hypotenuse² = Opposite side² + Adjacent side²
-Solve for Opposite side
Opposite side² = Hypotenuse² - Adjacent side sie²
-Substitution
Opposite side² = 9² - 2²
-Simplification
Opposite side² = 81 - 4
Opposite side² = 77
Opposite side = √77
4.- Find the tan Ф
tan Ф = Opposite side/Adjacent side
-Substitution
tanФ = -√77 / 2 It is negative because in the fourth quadrangle
tan is negative.
