The first step would be to add 40 to both sides of the equation, you can use multiple methods to solve from there, but I recommend 'completing the square' since your b value is equal to zero :)
Answer: 8/3 and -9/4
Step-by-step explanation:
1.
2. In this problem, when raising a whole fraction to a power, you must both raise the numerator and denominator to that power.
Answer:
y = -1/13x + 1 3/13
Step-by-step explanation:
y = 13x + 2
Perpendicular
y = -1/13x + b
Finding b:
1 = -1/13 * 3 + b
1 = -3/13 + b
1 3/13 = b
y = -1/13x + 1 3/13
Please let me know if I'm wrong :)
Area of a rectangle is 27 cm²
Given:
Perimeter of a rectangle = 24 cm
Length = 3x
Width = x
p = 2(l + w)
24 = 2(3x + x)
24 = 6x + 2x
24 = 8x
24/8 = x
3 = x
Width = 3 cm ; Length = 3x = 3(3) = 9 cm
Area = length * width
= 9cm * 3 cm
Area = 27 cm²
Prime numbers have only 2 factors 1 and its number for example:
2, 3, 5, 7, 11, 13, 17, 19, 23
Like this 1*2. Or 3*1
Composite numbers have more than two factors for example :
0, 4, 6, 8, 9, 10, 12, 14 15, 16..
For example 0 has many factors
0 times 3 0times 4