Answer: Any number less than 9.
Step-by-step explanation: The inequality is x is less than 9, that’s what < means, so you can say x is 8, 7, 6, 6.9, etc, x is anything less than 9.
Answer:
x=21
Step-by-step explanation:
Following the vertical angles, we can assume that the equation that has x and 87 are equal to each other. From then, you set them equal to each other and solve for x.
87=4x+3
84=4x subtract 3 from both sides
21=x divide by 4 to get the x alone on both sides
Answer:
16 and 73
Step-by-step explanation:
The question is missing some data. The distribution of the number of students is represented on the following stem-and-leaf plot:

The numbers in the first column represent the tens and the numbers on the second column represent the units. The number of students over the past 13 years were:
16, 19, 24, 24, 25, 33, 34, 37, 40, 42, 46, 49, 73.
Therefore, the smallest and largest number of students were 16 and 73.
3C + 5A = 115
C + A = 33
A = 33 - C
3C + 5(33-C) = 115
3C + 165 - 5C = 115
-2C = -50
C=25
25+A=33
A=8
C=25, A=8
Answer.
1) False
2) False
3) False
Explanation
1) When a number is written as a+bi, a and b are real number. b is never considered as imaginary number.
The statement given is false.
2) The value of i is √(-1), when squared we get;
(√(-1))² = -1.
The answer given is false.
3) It is not possible to graph a complex number is XY coordinates. Complex number are graphed on an imaginary axis and real axis only.
The statement given is false.