Answer:
1.)
2.)
3.)
4.)
5.)
6.)
Step-by-step explanation:
Use the 30°-60°-90° formulas:
a.
b.
1.) Insert values for a:
Simplify:
Insert values for b:
Simplify:
2.) Insert values for a:
Simplify:
Insert values for b:
Simplify:
3.) Insert values for a:
Simplify:
Insert values for b:
Simplify:
4.)Insert values for a:
Simplify:
Insert values for b:
Simplify:
5.) Insert values for a:
Divide both sides by and rationalize:
Flip:
Insert values for b:
Simplify:
6.) Insert values for a:
Divide both sides by and rationalize:
Flip:
Insert values for b:
Simplify:
Finito.
The correct answer is A: -1.8 + 5.4. Adding a negative is the same as subtracting.
Answer:
max bicycled 4.88 miles each minute
Step-by-step explanation:
30.5 divided by 6.25 = 4.88
Simplify 1/4x to x/4
-x/4 - 14y - 1/8x + 2y + 18
Simplify 1/8x to x/8
-x/4 - 14y - x/8 + 2y + 18
Collect like terms
(-x/4 - x/8) + (-14y + 2y) + 18
Simplify
-3/8x - 12y + 18