84+21 105 or 84 Divided 21 equals is 4
I try
X^3-1 rewrite as x^3-1^3
differences of cubes formula: a^3-b^3=(a-b)(a^2+ab+b^2)
a=x, b=1
(x-1)(x^2+x*1+1^2)
(x-1)(x^2+x+1)
Answer:
Reflects it about x-axis and down 3 units
Step-by-step explanation:
y = f(x) + C C < 0 moves it down
This is moved down 3 units
y = −f(x) Reflects it about x-axis
Answer:
h = 7.5 cm
Step-by-step explanation:
Firstly, we find the area of the triangular base
Mathematically, we have the area of a triangle as;
A = 1/2 * b * h
A = 1/2 * 5 * 8 = 20 cm^2
Mathematically, we have the formula as;
V= 1/3 * A * h
A is base area and h is height
50 = 1/3 * 20 * h
20h = 3 * 50
20h = 150
h = 150/20
h = 7.5 cm
Answer:
it's going to be negative
