We break apart the first numer:
10+8
the second:
20+1
and add like this:
18+21=10+8 + 20+1
now, we can mix up the order:
18+21=10+8 + 20+1= 10+20 + 8+1
add the parts:
18+21=10+8 + 20+1= 10+20 + 8+1=30+9=39
Answer:
b. 3
Step-by-step explanation:
In a 30°-60°-90° triangle, the short side is ½ the hypotenuse [the long side is double the short side].
30°-60°-90° Triangles
x√3 → long side
x → short side
2x → hypotenuse
45°-45°-90° Triangles
x → two legs
x√2 → hypotenuse
I am joyous to assist you anytime.
Answer:
-250
Step-by-step explanation:
I don't know for sure but I hope it's correct.
Answer:
[See Below]
Step-by-step explanation:

__________________________________________________________

- Rearrange the equation by subtracting what is to the right of the greater than sign (≤, ≥) from both sides of the inequality:

- Divide both sides by
:
- Remember to flip the inequality sign:
- Subtract
from both sides:



__________________________________________________________
^-^