Any number ends with 0, 1, 2, 3, 4, 5, 6, 7, 8 or 9
Given any number. The square of this number is the last digit of square of the original numbers units digit.
For example
23*23 ends with 9 (3*3=9)
149*149 ends with 1 (9*9=81)
2564*2564 ends with 6 (4*4=16)
and so on
so all the possible unit digits of a square number are {0, 1, 4, 5, 6, 9}
because:
0*0= 0 ; 1*1=1; 2*2=4; 3*3=9; 4*4=16; 5*5=25, 6*6=36; 7*7=49; 8*8=64, 9*9=81
Thus, the probability that the square of a number selected from any set of numbers being 7, is 0.
Answer: 0
Answer:
the second solution . 3/18 = 6/DG
Step-by-step explanation:
Answer:
-2
Step-by-step explanation:
The line is going down 2 over 1 making it -2/1
this becomes -2
Answer:
2x - 6y
Step-by-step explanation:
(5x – 2y) – (3x + 4y)
5x - 2y - (3x + 4y)
Distribute the - sign
5x - 2y - 3x - 4y
Group like terms
(5x - 3x) + (-2y - 4y)
Combine like term
2x - 6y
Answer: 360
Step-by-step explanation:
Since we are informed from the question that Alicia surveyed 50 students in the cafeteria from the population of 300 students, it simply means that she surveyed 50/300 = 1/6 of the students.
Since Thea surveyed the first 60 students who arrived at school one morning, the number of T-Shirts taht they should order will be:
= 1/6 × x = 60
x = 60 × 6.
x = 360
They should order 360 t-shirts for the students.
