Answer:
Candles, fireworks, sun, lights, Christmas tree, etc
Step-by-step explanation:
If you would like to find the rational roots of x^4 + 8 * x^3 + 7 * x^2 - 40 * x - 60 = 0, you can do this using the following steps:
x^4 + 8 * x^3 + 7 * x^2 - 40 * x - 60 = 0
(x^2 - 5) * (x^2 + 8 * x + 12) = 0
(x^2 - 5) * (x + 6) * (x + 2) = 0
1. x = - sqrt(5)
2. x = sqrt(5)
3. x = - 6
4. x = - 2
The correct result would be -6 and -2.
Answer:
4
Step-by-step explanation:
if you put it in y=mx+b form you would get y=4x-8=72
Answer:
d) 135º
Step-by-step explanation:
Note that the angle DCU is the sum of the angles DCB and BCU. The angle DCB is 90º because A B C D is a square, then all its angles are equal to 90º.
After attaching B U C to A B C D, we obtain a trapezoid A U C D. Since A U C D has at least one pair of parallel sides, then AU should be parallel to CD, thus the angle CBU must be 90º.
B U C is isoceles, so we conclude that other two angles must have the same size, and due to the sum of the angles of a triangle being 180º, then both BUC and BCU are equal to 45º
As a result, the angle DCU is equal to 90º+45º = 135º. Option d is the correct one.
Answer:
A = 62x^2
Step-by-step explanation:
This rect. prism has 6 faces, stemming from two each of the areas of the top, the end and the side of the prism.
top surface area: (2x)(3x) = 6x^2
end surface area: (2x)(5x) = 10x^2
side surface area: (3x)(5x) = 15x^2
Total surface area: A = 2(6x^2 + 10x^2 + 15x^2)
or: A = 2(31x^2) = 62x^2