Answer:
0
Step-by-step explanation:
1/cosecx = sin(x)
cosec(x) = 1/sin(x)
1/sec(x) = cos(x)
sec(x) = 1/cos(x)
1/sin(35) - 1/cos(55)
1.74344 - 1.7344 isn't that something?
0
Answer:
D. 
Step-by-step explanation:
Perimeter of Rectangle ABCD = 
Perimeter of Rectangle PQRS = 
Difference between perimeter of Rectangle ABCD and Perimeter of Rectangle PQRS:
Open Parentheses
Collect like terms
Answer:
x = 18
Step-by-step explanation:
(whole secant) x (external part) = (whole secant) x (external part)
(6+x)6 = (8+10)* 8
6*(6+x) = 8(18)
Divide each side by 6
6+x = 8(18)/6
6+x = 8*3
6+x = 24
Subtract 6 from each side
6+x-6 =24-6
x = 18
Answer:
10
Step-by-step explanation:
2 1/2 ÷ 1/4 reduce
5/2 × 4/1 = 20/2
20 ÷ 2 = 10 pounds of flour per sugar
(I'm not very good at math so this might be wrong)
Step-by-step explanation:
(Assuming that this triangle is isosceles)
If this triangle is isosceles, then x° is going to be equal to its twin angle; 40°.
We can solve for z now.
180 = 40 + 40 + z
180 = 80 + z
Subtract 80 from both sides.
100 = z
z = 100°
Now that we know z = 100 degrees, we can begin to solve the expression (3x -20)
The expression sits on a 180° line and the angle z (100°) shares the line with the expression (3x - 20)°
180 = 100 + (3x - 20)
Subtract 100 from both sides.
80 = 3x - 20
Add 20 to both sides to isolate 3x
100 = 3x
Divide by 3 on both sides.
100/3 = 3x/3
33.33... = x
