Answer:
There should be 18 blue marbles in the representative sample.
Step-by-step explanation:
Given that a bag contains 9 white and 54 blue marbles, if a representative sample contains 3 white marbles, to determine how many blue marbles would you expect to contain the following calculation must be performed:
9 = 3
54 = X
54 x 3/9 = X
162/9 = X
18 = X
Therefore, there should be 18 blue marbles in the representative sample.
You are given the function of identity of cos(6x) = 2cos^2(3x)-1. <span>A sine and cosine function is one of the basic
functions encountered in Trigonometry. Sine is equal to the opposite side over
hypotenuse whereas the cosine function is equal to the adjacent side over the
hypotenuse.</span>
Answer:
A= 78.5 sq. in
Step-by-step explanation:
Step by step
1: A = pi * r^2
2: A = 3.14 * 25
In words.
1: Times the pi by r^2
2: The answer will come out as 3.14
3: Times the Answer that is 3.14 by 25
Answer: A= 78.5 sq. in
<em><u>Hope this helps.</u></em>
Answer:
Ф = 10°
Step-by-step explanation:
Regarding arc length, s: s = r·Ф, where Ф is the central angle in radians and r is the radius.
We need to find the central angle, Ф, in this problem.
We know that C = circumference = 6, and that this leads to r = 6/π.
Substituting 6/π for r and 1/3 for s in Ф = s / r, we get:
Ф in radians = 1/3 / (6/π), or Ф = π/18 rad.
π 180°
Converting this into degrees, we multiply ------ by ----------
18 π rad
obtaining: Ф = 10°
Answer:
Step-by-step explanation:
if they are Pythagorean triples they should check for the theorem
the biggest value 17/8 should be the hypothenuse
(17/8)² = 1² + (15/8)² ; square the numbers
289/ 64 = 1+ 225/ 64 ; find the common denominator for addition
289/ 64 = 64+ 225/ 64 ; add
289/ 64 = 289 /64 TRUE so they are Pythagorean Triples
