Answer:
its actually -4
Step-by-step explanation:
Answer:
False
Step-by-step explanation:
In cartesian coordinates, we represents a point as (x,y).
Whereas, in polar coordinates, we represent a point as
Here,
The term r is the radial distance from origin and the angle Ф is the polar angle.
Therefore, the term r doesn't represent the reference angle when plotting a point in polar coordinates.
Hence, the given statement is false.
To find the value of k that satisfies the equation 7(7 - k) + 3k = -2(9k + 4) + 15, you can follow these steps:
1. Distribute the constants and variables on both sides of the equation:
7 * 7 - 7 * k + 3k = -2 * 9k - 2 * 4 + 15
2. Simplify both sides:
49 - 7k + 3k = -18k - 8 + 15
3. Combine like terms on each side:
(49 - 8) - 4k = -18k + 15
41 - 4k = -18k + 15
4. Move the variable terms to one side and the constant terms to the other side by adding 18k and subtracting 41 from both sides:
41 - 4k + 18k = 15
14k - 41 = 15
5. Add 41 to both sides to isolate the variable term:
14k = 15 + 41
14k = 56
6. Finally, divide by 14 to solve for k:
k = 56 / 14
k = 4
So, the value of k that satisfies the equation is k = 4.
Answer: Cluster sampling
Step-by-step explanation:
A cluster sampling is a kind of random sampling technique in which the researcher splits the whole population into distinct sets known as clusters.
After that, he choose a random sample of clusters from the population and do analysis on it.
In the given situation, the objective of survey : "To determine customer opinion of their pricing:".
He first divides the number of check out lines according to weeks and randomly selects 140 check out lines during a certain week and surveys all customers in the check out lines. .
(Here , check out lines = clusters )
Therefore , the type of sampling is used = Cluster sampling
Cluster sampling is used by Home Depot for a certain week and surveys all customers in the check out lines.
A cluster sampling is a kind of random sampling technique in which the researcher splits the whole population into distinct sets known as clusters.
Given, Home depot randomly selects 140 check out lines.
In the given situation, the objective of survey : "To determine customer opinion of their pricing:".
He first divides the number of check out lines according to weeks and randomly selects 140 check out lines during a certain week and surveys all customers in the check out lines. .
Here , check out lines = Clusters
Therefore , the type of sampling used is Cluster sampling .
Know more about cluster sampling,
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A. 81x^4
B. 1/3x
C. 1/x^6
D. 4x^6