I think it is E because you use the distributive property
1)
and
and
bisect each other (given)
2)
is a parallelogram (a quadrilateral with diagonals that bisect each other is a parallelogram)
3)
is a rhombus (a parallelgoram with congruent diagonals is a rhombus)
4)
(halves of congruent segments are congruent)
Answer:
The perimeter of crater lake is 17.27 miles.
Step-by-step explanation:
Given as :
The shape of the lake is like a circle
The diameter of lake = d = 5.5 miles
∵ shape pf lake is circle, so the diameter of circle = d = 5.5 miles
Let The perimeter of crater lake = p miles
<u>Now, As we know</u>
The perimeter of circle =
× diameter
the value of
= 3.14
Or, p =
× d
Or, p =
× 5.5 miles
Or, p = 3.14 × 5.5 miles
∴ p = 17.27 miles
So, The perimeter of circle = perimeter of lake = p = 17.27 miles
Hence, The perimeter of crater lake is 17.27 miles. Answer
Answer:
(60.382 ; 83.998)
Step-by-step explanation:
The confidence interval is given as :
Mean ± Margin of error
Mean = 72.19
The margin of error is : Tcritical * s/√n
n = 13 ; s = 15.88
Tcritical at 98%, df = 13-1 = 12 = 2.681
Margin of Error = 2.681 * 15.88/√13 = 11.808
Confidence interval = 72.19 ± 11.808
(60.382 ; 83.998)
-30 = 6z
Plug in 6(-5) and you get -30
Answer is A