Answer:
Sample third quartile appears to be an unbiased estimator of the population third quartile.
Step-by-step explanation:
khan
Answer:
the first one
Step-by-step explanation:
Answer:
2. 20
Step-by-step explanation:
2. The distance from one base of the prism to the other base of the prism, d = 10 mm
The thickness of each triangle to be used to fill the prism, t = 0.5 mm
The number of triangles needed, <em>n</em>, is therefore;
Where;
<em>d </em>represents the distance between the bases of the prism, <em>t</em>, represents the thickness of each triangle, and <em>n</em> represents the number of triangles it would take to fill up the prism
Therefore;
The number of triangles it would take to fill up the prism, n = 20
Answer:
2 & 8
-4 & -4
Step-by-step explanation:
x and y are the numbers, as per question:
x= 4+2y and xy= 16
- y(4+2y)= 16
- 2y²+4y=16
- y²+2y - 8= 0
- y²+2y+1 =9
- (y+1)²=9
- y+1=3 ⇒ y= 2 ⇒ x= 4+2*2= 8
- y+1= -3 ⇒ y= -4 ⇒ x= 4+2*(-4)= -4
Answer:
(2, -11)
Step-by-step explanation:
(x + 3, y + 2) = (5, -9)
x + 3 = 5
y + 2 = -9
x = 2
y = -11