Answer:
-1 is not correct
1 is the correct answer
Step-by-step explanation:
Her mistake was adding a negative sign in the one
The right way is to cross out one negative symbol between the two parentheses
Use arccos...cos^-1 so
cos^-1 (0.8195)
it equals 34.96522689°
Answer:
Area of given figure = 96 unit²
Step-by-step explanation:
Given:
Length of shape = 4 unit
Width of shape = 4 unit
Height of shape = 4 unit
Find:
Area of given figure
Computation:
All side of figure all equal
So,
Given figure is a cube
Number of faces of cube = 6
Area of base = side x side
Area of base = 4 x 4
Area of base = 16 unit²
Area of given figure = Area of base x Number of faces of cube
Area of given figure = 16 x 6
Area of given figure = 96 unit²
(x + 2)(5x^2 + x - 4) =
x(5x^2 + x - 4) + 2(5x^2 + x - 4) =
5x^3 + x^2 - 4x + 10x^2 + 2x - 8 =
5x^3 + 11x^2 - 2x - 8 <===
Answer:
a. 9
b. 6
Step-by-step explanation:
a. z=12 - 3= 9
b. (36 - 18)/3= Z
