We know that
the law of cosines establish
c²=a²+b²-2*a*b*cos C------> cos C=[a²+b²-c²]/[2*a*b]
in this problem
a=11 units
b=11 units
c=14 units
C=angle A
cos C=[11²+11²-14²]/[2*11*11]-----> cos C=0.19008
C=arc cos (0.19008)------> C=79.04°
the answer is
the measure of angle A is 79°
Answer: 34688
Step-by-step explanation:
11 more than five of a certain number would be written as 5x+11 and it is (means equal to) twenty more than two times that number, which would be 2x+20. So the equation would be
5x+11=2x+20
-2x -2x (get the x's on one side)
3x+11=20
-11 -11 (get the numbers on one side)
3x=9
/3 /3 (divide by 3, so you can get the x by itself)
X=3 (the number is 3)
I'm not sure if I will be correct but, I hope this helps.
A. 10^2
B. 10^6
c. 10^9
D. 10^15
*^ means the exponent *
Answer:
(x−4)²+(y)²=1
Step-by-step explanation:
If you translate this into English, you get something like this:
The y value lies between -1 and 1, if the x value is between 3 and 5, This could very well be a circle with the center point M and a radius of 1.
The x-coordinate of the middle lies between 5 and 3, which is 4
The y-coordinate of the middle lies between -1 and 1, which is 0.
So the middle is (4 , 0) and radius is 1
The circle equation (xa) 2 + (yb) 2 = r 2
The circle with center M( a b ) and radius r has as a comparison:
(x - a)² + (y - b)² = r²
with a = 4 and b = 0 and r = 1
(x − 4)² + (y - 0)² = 1²
(x−4)²+(y)²=1
