Plane averaged 88mph with the wind and 44 against the wind. the average of these two averages is 66 mph. plane speed in still air is 66 and the wind speed was 22 (88-22=66 and 44+22=66)
Answer: The answer is B
Step-by-step explanation:
<span>y-2x=-6 and 5x-y=9
step 1: isolate y in the first equation
y = 2x - 6
step 2: substitute the y value on the 2th equation:
5x-(2x-6)=9
step 3: solve the present equation:
5x - 2x + 6 = 9
3x = 9-6
3x = 3
x = 1
step 4: get the y value by replacing the value of x in </span>y = 2x - 6:
<span>
y = 2*1 - 6
y = 2 - 6
y = -4
S={1, -4}
</span>
The answer is D: to dilate the triangle by a scale factor of 1:2 (or 1/2).
I hope this Helps!
Complete Question
The complete question is shown on the first uploaded image
Answer:
The value of 
The value of 
Step-by-step explanation:
Generally the total angle that make up a circle is

From the diagram we see that

=> 

Generally angle that is formed as a result of interception of a chord and a tangent is equal to the intercepted arc divided by 2
This implies that

substituting values

