What is the domain of f(x) = 3x2?

Mathematics

1 answer:

Iteru [2.4K]3 years ago

6 0

Answer:

Step-by-step explanation:

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2x + y = 3<br> x = 2y - 1

Ad libitum [116K]

<span>2x+ y = 3
x = 2y - 1
Make sure there are NO SPACES in your answer. Include a comma in your answer.
It looks like I could substitute the x=2y-1. Into 2x+y=3
2(2y-1)+y=3
4y-2+y=3
5y=5
y=1
x=2(1)-1
x=1

(1,1)
CHECK
2x+y=3
2(1)+(1)=3
2+1=3
3=3
Left hand side=Right hand side
Check other equation
x=2y-1
1=2(1)-1
1=1
Therefore the solution is (1,1). Since the left hand side= right hand side in each equation</span>

8 0

3 years ago

is planning schedules for 30 students Sixteen students say they want to take French, 16 want to take Spanish, and 11 want to tak

ivann1987 [24]

Answer: There are 7 students who want French only.

Step-by-step explanation:

Since we have given that

Number of students is planning schedules = 30

Number of students who want to take French = 16

Number of students who want to take Spanish = 16

Number of students want to take Latin = 11

Number of students who take both French and latin = 5-3 =2