Answer:
sin (×+y)/sinx cosy =1+ cotx tany
from trig ratio Sin [x +y] = sinx Cosy + cosx siny
Sinx cosy + cosox siny./Sinx cosy
then check the attachments for further information
Answer:
Step-by-step explanation:
I think the attached photo supports for your question
Here is my anser:
We need to find the slope of the of and from the graph, we see that if x increases from 2 to 4, y decreases from 4 to -2. Thus, the slope of the blue line is :
= -3
But the slope of the perpend. bisector of the blue line is the negative reciprocal of -3, or m= 1/3.
Let's find the slope-intercept form of this bisector. We need to determine b in y=mx+b. Referring to the midpoint of the blue line, x= 3; y= 1; and m=1/3. Then
y=mx+b becomes 1=(1/3)(3) + b. Solving for b: 1=1+b. Then b=0.
Thus, the equation of the perpendicular bisector of the blue line through (3,1) is y=mx + b, or y=(1/3)x + 0, or y=x/3.
Number of adult tickets sold is 31 and number of child tickers sold is 19
Step-by-step explanation:
- Step 1: Find the equation to find the number of child and adult tickets sold.
Let the number of adult tickets sold be x, then the number of child tickets will be 50 - x. (Since there is a total of 50 seats)
Charge for a child ticket = $2
Charge for adult ticket = $5
Total amount received from show = $193
Equation ⇒ 2(50 - x) + 5x = 193
- Step 2: Solve the equation to find x.
⇒ 100 - 2x + 5x = 193
⇒ 3x = 93
∴ x = 93/3 = 31
⇒ 50 - x = 50 - 31 = 19
Answer:
D or B i think
Step-by-step explanation: