Answer:
8x³ - 25x² - 3x + 18
Step-by-step explanation:
(2x + 3)(4x²- 5x + 6)
multiply 2x by each of the three terms in the second expression to get:
8x³ - 10x² + 12x
now multiply 3 by each of the three terms in the second expression to get:
12x² - 15x + 18
Combine 'like terms': -10x² + (-15x²) = -25x²
Combine 'like terms': 12x + (-15x) = -3x
Put all terms in decreasing exponent order:
8x³ - 25x² - 3x + 18
Sin (pi/6) = 1/2
Tan (pi/4) is 1.
If you need to know why, leave me a comment!
Answer:
The perimeter of the triangle is 40.
Step-by-step explanation:
The sum of legs for a right triangle is 12:
(1)
And their product is:
(2)
By entering eq (1) into (2) we have:
We can find the value of "b" by solving the above quadratic equation.
Since the two values satisfy the equation, we can use either of them to find "a". We will use b₁.
Now, the hypotenuse of the right triangle is given by:
Hence, the perimeter is:
Therefore, the perimeter of the triangle is 40.
I hope it helps you!
<span>According with reports, eighty percent of the traffic deaths in the us happen in cars traveling less than 40 miles per hour.</span>