Answer: 128 degrees
Explanation:
Using the interior angles formula, 180(n-2), where n is the number of sides, we can determine that the interior angles must add up to 180(3) or 540. Therefore, 98+104+120+90+x=540
Simplify:
412+x=540
x=128
Hello Abbigailallred, <span>Sine:
the trigonometric function that is equal to the ratio of the side
opposite a given angle (in a right triangle) to the hypotenuse. What is the Sine of angle A, 4/5.
</span>
Answer:
-3 and -2
Step-by-step explanation:
7x² + 19x + 21 = 4x² + 4x + 3
combine like terms:
3x² + 15x + 18 = 0
3(x² + 5x + 6) = 0
(x + 3)(x + 2) = 0
x = -3
x = -2