Answer:
Area is (x² - 9) units squared.
Step-by-step explanation:
• from difference of squares quadratic property:
→ a is x
→ b is 3
• Therefore:
Simplify by opening the bracket;
x(x^2+6y^2)
=
Answer:
x = 4
Step-by-step explanation:
<u>Answer</u>
y⁻¹ = ∛(4x+8)
<u>Explanation</u>
y=(1/4)x³ - 2.
To find the inverse of this equation, you first make x the subject of the formular.
y=(1/4)x³ - 2
Multiply both sides by 4;
4y = x³ - 8
Add 8 on both sides of the equation;
4y + 8 = x³
x³ = 4y + 8
Apply the cube root on both sides to get the value of x;
x = ∛(4y+8)
The inverse of y=(1/4)x³ - 2 is;
y⁻¹ = ∛(4x+8)
Answer:
184
Step-by-step explanation:
A = 2(wl+hl+hw) = 2 · (6 · 2 + 10 · 2 + 10 · 6) = 184
