The simple way of calculating a perimeter is to add all of the sides.
For a rectangle this would equal 2 x length + 2 x width
P = 2(6x + 3) + 2(-2x - 5)
= 12x + 6 - 4x - 10
= 8x - 4
At a higher level both the length and width must be greater than zero (= zero is a trivial rectangle)
6x + 3 > 0
6x > -3
x > -0.5
-2x - 5 > 0
2x + 5 < 0 (multiplying by -1 reverses the inequality)
2x < -5
x < -2.5
This rectangle cannot exist as x cannot be < -2.5 and > -0.5 at the same time!
40 hours. Armando reads 20 pages per 4 hours. 20*10 would get to 200 which is the total amount of pages. So you would multiply the amount of hours by the same amount 4*10 which = 40 hours total.
Answer:
3/16
Step-by-step explanation:
because you have a chance of 3 blue marbles out of 3+4+4+5 which is equal to 16
Answer:
117, 55, 54, 77, 130, 7h + 5x, 14
Step-by-step explanation:
Answer:
Hope this helps..
Step-by-step explanation:
So when you need to divide one complex number by another, you multiply the numerator and denominator of the problem by the conjugate of the denominator. This step creates a real number in the denominator of the answer, which allows you to write the answer in the standard form of a complex number.
