A= -1
You add the 6a and 5a.
Your equation is then 11a= -11
At this point you divide each side by 11 to get "a" by itself.
Answer:
angle Y= 60 degrees
Step-by-step explanation:
angle S + angle Y = 90 degrees because they are complementary
Y = 90 - S
angle S = 4(Y)-210
substitute for Y
S = 4(90 - S) - 210
S = 360 - 4S - 210
reduce
5S = 150
S = 30
Y = 90 - 30 = 60
Given:

and,
K = 1
We would require to do the synthetic division of the above problem in order to know whether K=1 is a lower bound or not. Let's do it!
Steps of Synthetic Division:
1. Write the coefficients of the equation, and before that write 1. Like,
1 ║ 4 -2 2 4
As you can see, the coefficients of the equation are seperated by ║.
2. Drop down the first value after ║as it is. Like:
1 ║ 4 -2 2 4
:
----------------------
4
3. Multiply 4 with 1 and then place the resultant value under -2 and then add that resultant value with -2. Like
1 ║ 4 -2 2 4
:
4----------------------
4
24. Repeat Step 3 until you're done.
1 ║ 4 -2 2 4
: 4
2 ----------------------
4 2
4
1 ║ 4 -2 2 4
: 4 2
4----------------------
4
2 4
8
Now every value, +4, +2, +4, +8, under the bar(---------) is positive; therefore, it means that
K=1 is the upper bound, NOT lower bound.
Ans: K=1 is NOT a lower bound.
-i
Sin125, on the unit circle, should be positive(not negative), since it should be in quadrant two if the angle 125 degrees is in standard position.
Area of a cube=6(side)²
area of a cube=6*(14 m)²=6*196 m²=1176 m²
Answer: 1176 m²