Answer:
√95 cm
Step-by-step explanation:
To solve, you need to use the pythagorean theorem, or a^2 + b^2 = c^2
The hypotenuse is the c and let one leg be b. You can write:
a^2 + 7^2 = 12^2
a^2 + 49 = 144
Now, you need to solve for a:
a^2 = 144 - 49
a^2 = 95
a = √95 cm, or about 9.75cm
Answer:
18
Step-by-step explanation:
3x + 2x = 90
5x = 90
5x/5 = 90/5
x = 18
Answer:
In order to solve this algebraic expression, you need to get the variable x by itself
Step 1: subtract 4 from each side
4-4+7x=-24-4 (4-4=0, those cancel out) (-24-4=-28)
7x=-28
Step 2: divide both sides by 7
7x/7=-28/7 (7x/7=x) -28/7=-4)
Your final answer would be x=-4
Hope this helps ;)
Step-by-step explanation:
