-4i
Answer:
-4i = 4(cos 270 +i sin 270)
Step-by-step explanation:
We have a+ib = r(cosθ+isinθ)
Here a = 0 and b = -4
Substituting
-4i = 4(cos 270 +i sin 270)
b.Brazil
Answer:
Option a. Greece.
Step-by-step explanation:
According to the table listing average daily expenses for a tourist by country based on high and medium categories,
Brazil has a range from = $12.25 to $18.33
Greece has a range from = $9.48 to $16.55
To find out the difference in range, first we get range of both the countries.
by subtracting lowest from highest
Brazil = $18.33 - $12.25 = 6.08
Greece = $16.55 - $9.48 = 7.07
= 7.07 > 6.08
Therefore, Greece has the larger difference between categories.
Option a. Greece is the correct answer.
Answer:
Step-by-step explanation:
A. Descriptive statistics
Descriptive statistics involve summarizing and describing data, such as calculating measures of central tendency (like the average height) or measures of variability (like the range or standard deviation) for a given sample or dataset. In this case, you are describing the characteristics of a specific group of basketball players, which falls under descriptive statistics.
Answer:
fish tank is 14.87 ≈ 15 inches tall.
Step-by-step explanation:
Given : A rectangular fish tank contains 3,240 cubic inches of water. The dimensions of the base of the fish tank are 12 inches x 18 inches.
To find : How tall is the fish tank.
Solution : We have given that volume of fish tank = 3240 cubic inches.
Length of tank = 12 inches.
Width of tank = 18 inches .
Volume of rectangular tank = length * width * height
3240 = 12 * 18* height .
3240 = 216 * height.
On dividing both side by 216 and switching the sides .
Height = .
Height = 14.87 inches
Therefore, fish tank is 14.87 ≈ 15 inches tall.