First factor the equation
(x-10)(x+2) = 0
Then solve for (x-10) and (x+2)
x=10
x=-2
Answer:
Cube 1: 3375 cubed inches, 1350 inches squared.
Cube 2: 512 cubed inches, 384 inches squared.
Step-by-step explanation:
Formula for Volume of a Cube: 
(s - side length)
Formula for Surface Area of a Cube: 
(s- side length)
<h3>For Cube 1:</h3>
The side length's 15 inches.
Find the volume:
The volume of cube one is 3375in³.
Find the surface area:
The surface area of cube 1 is 1350in².
<h3>For Cube 2:</h3>
The side length's 8 inches.
Find the volume:
The volume of cube two is 512in³.
Find the surface area:
The surface area of cube 2 is 384in².
<em>Brainilest Appreciated. </em>
5/9 equals 0.5555555556
The rounded answer would be 0.6
c:
If the temperature in degrees Celsius , of a particular place from January to December was given as 9,11,12,12,13,14,14,14,16,15
Ira Lisetskai [31]
Answer:
use a calculator
Step-by-step explanation:
Add all of the numbers and divide by 12
The sides of the triangle are given as 1, x, and x².
The principle of triangle inequality requires that the sum of the lengths of any two sides should be equal to, or greater than the third side.
Consider 3 cases
Case (a): x < 1,
Then in decreasing size, the lengths are 1, x, and x².
We require that x² + x ≥ 1
Solve x² + x - 1 =
x = 0.5[-1 +/- √(1+4)] = 0.618 or -1.618.
Reject the negative length.
Therefore, the lengths are 0.382, 0.618 and 1.
Case (b): x = 1
This creates an equilateral triangle with equal sides
The sides are 1, 1 and 1.
Case (c): x>1
In increasing order, the lengths are 1, x, and x².
We require that x + 1 ≥ x²
Solve x² - x - 1 = 0
x = 0.5[1 +/- √(1+4)] = 1.6118 or -0.618
Reject the negative answr.
The lengths are 1, 1.618 and 2.618.
Answer:
The possible lengths of the sides are
(a) 0.382, 0.618 and 1
(b) 1, 1 and 1.
(c) 2.618, 1.618 and 1.
