Answer:
<em>18cm</em>
Step-by-step explanation:
Perimeter of triangle= a+a+a (side + side+ side)
Perimeter of triangle= 6 cm+6cm+6cm
Perimeter of triangle= 18cm
X^4 - 5x^2 - 36 = 0
(x^2 - 9)(x^2 + 4) = 0 - factor the left side
(x + 3)(x - 3)(x^2 + 4) = 0 - factor (x^2 - 9 as difference of squares)
x + 3 = 0 x - 3 = 0 x^2 + 4 = 0 Set each factor to 0 if any 0 the left side 0
x = -3 x = 3 x^2 = -4
x = 2i or -2i
The roots are 3, -3, 2i, -2i (Don't know if you need the imaginary roots but I gave you them anyway)
Answer:
b. Square root of the variance
Step-by-step explanation:
The standard deviation measure how scattered the data of the set is, in other words, measure the dispersion. A low value is found when the points are close to the mean, and when the value is high the data uses a wider range of values. To calculate its value, the simple way, you need the variance because the standard deviation is the square root of the variance.
Answer:
207π ft²
Step-by-step explanation:
Given in the question,
diameter of the base = 18 ft
slant height= 14 ft
radius of the base = 18/2
= 9 ft
Formula to calculate the surface area
<h3>A = πrl+πr²</h3>
<em>here l = slant height</em>
<em> r = radius of the base</em>
<em />
plug values in the formula
A = π(9)(14)+π9²
A = 207π ft²
4x - 2 it’s the slope with the y intercep
