That would be the last one opposite/hypotenuse which is 5/13
Answer:
x = -3 or x = 5
Step-by-step explanation:
Solve: x^2 -2x = 15
x^2 - 2x - 15 = 0
Use the Diamond method of factoring
-15 = 3* -5 and 3 - 5 = -2 so...
x^2 - 2x - 15 = x^2 - 5x + 3x - 15
x^2 - 2x - 15 = x *(x - 5) + 3*(x - 5)
x^2 - 2x - 15 = (x + 3)*(x - 5)
x^2 - 2x - 15 = (x + 3)*(x - 5) = 0
solve (x + 3 ) = 0 and (x - 5) = 0
x = -3 or x = 5
We must find the common denominator.
LCM(6, 3) = 6
or other method of calculating the difference
Answer:
B.64
Step-by-step explanation:
75% of a number is 120.
Let's take "x" be the number.
75% of x = 120
75/100 * x = 120
0.75x = 120
x = 120/0.75
x = 160
So the number is 160.
Now we have to find the 40% of the number 160.
= 40/100 * 160
= 0.4 *160
= 64
40% of the number is B.64
Thank you.
