12 ft I had the question the other day on online school :)
In trigonometry, the right triangle is considered a special triangle because there are derived equations solely for this type. It is really convenient when dealing right triangle problems because it is more simplified courtesy of the Pythagorean theorems. It is derived that the square of the hypotenuse (longest side of the triangle) is equal to the sum of the squares of the other two legs. In equation, that would be c² = a² + b². For this activity, all you have to do is find the sum of the squares in columns a and b. Then, see if this is equal to the square of the values in column c. Let's calculate each row:
Row 1:
3² + 4² ? 5²
25 ? 25
25 = 25
Row 2:
5² + 12² ? 13²
169 ? 169
169 = 169
Row 3:
9² + 12² ? 15²
225 ? 225
225 = 225
Therefore, all of the given values conform to a² + b² = c².
(Divide) 1,300÷15=86.6666666667
Answer:
Step-by-step explanation:
volume of concrete=162×12×4/12=648 ft³
Answer:
Then, Jane had twice as much money as her sister. How much money did their parents give each of them?
Let x = amt given to them
Solve this equation for x
7 + x = 2(2 + x) Jane had $7 and her sister had $2.
Their parents gave them each equal amount of money
