Answer:
Cortex layer
Step-by-step explanation:
The fibrous protein core of the hair, formed by elongated cells containing melanin pigment, is the cortex layer
Answer:
k + 13
Step-by-step explanation:
4 + 9 = 13
hope this helps
In order to calculate the value of the hypotenuse we use knowledge on trigonometric functions. For this case, we can use the sine function. We do as follows:
sin 55 = 16 / c
c = 19.5330
Therefore, the correct answer is option B.
A graphing calculator shows four (4) zeros of
f(x) = sin(2x -9°) -cos(x +30°)
in the range 0° ≤ x ≤ 360°
Solutions are
x ∈ {23°, 129°, 143°, 263°).
_____
You can make use of a couple of trig identities to rearrange this equation.
cos(x) = sin(x+90°)
sin(a) -sin(b) = 2*cos((a+b)/2)*sin((a-b)/2)
So
sin(2x -9°) -sin(x +120°) = 2*cos((3x +111°)/2)*sin((x -129°)/2) = 0
The cosine factor will be zero for
(3x +111°)/2 = n*180° +90°
3x -69° = n*360°
x = 23° +n*120° . . . . . . for any integer n
The sine factor will be zero for
(x -129°)/2 = n*180°
x = 129° +n*360° . . . . . for any integer n
Combined, these solutions give the ones listed above in the range 0..360°.