Answer:
To begin this problem we call "the sum of the number" x. Now we have the equation 2(x)+5=20. This is the answer because it said to translate the equation. I think 2x+5+20 would be the correct translation.
B. –6x + 6y = 30
C. -6x - 6y = 30
D. 6x - 6y = 30
A.x√2x when x>0
B.x√7 when x<0
C.x√7 when x>1
D.x√7 when x>0
a) 10 - 3√2
b) 10 - √2
c) 7
d) -4
2. Evaluate 6 + √14 + x - √9x when x = 2. (Write as decimal)
a) 14.24
b) 7
c) 5.76
d) -4
Thank you !
Using the combination formula, it is found that the students can be selected in 105 ways.
The order in which the students are selected is not important, hence the combination formula is used to solve this question.
The number of possible combinations of x elements from a set of n elements is given by:
In this problem, two students are selected from a set of 15, hence the number of different orders is given by:
More can be learned about the combination formula at brainly.com/question/25821700
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Answer:
3 i think
Step-by-step explanation:
add 3 and 4 =7
or
multiply 2 and 3= 6 and subtract 3 = 3