Answer with explanation:
It is given that

The Angle lies in Second Quadrant.
Formula to find reference Angle
→If Angle lies in first Quadrant
then Reference Angle = The Angle given
→If Angle lies in Second Quadrant
Then Reference Angle = 180° - Angle
→If Angle lies in third Quadrant
then Reference Angle = Angle - 180°
→If Angle lies in fourth Quadrant
Then Reference Angle = 360° -Angle
Reference Angle
⇒sin 48°=0.7431448
Rounding to four decimal places
Sin 48°=0.7432
Find the equation of the line connecting (0, 5) and (-2, 0).
As we go from the first point to the second, x decreases by 2 and y decreases by 5. Thus, the slope of this line is m = rise / run = -5/(-2), or 5/2.
Starting with the general equation of a line in slope-intercept form, y = mx + b, substitute the knowns as appropriate to determine the value of b:
y= mx + b => 5 = (5/2)(0) + b. Then b = 5, and the desired equation is
y = (5/2)x + 5.
Check this! If we subst. the coordinates of (-2,0) into this equation, is the equation true?
0 = (5/2)(-2) + 5
Yes. So, y = (5/2)x + 5 is the desired equation.
Answer:
Yes, it always represent 40% of that number.
Step-by-step explanation: