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3 years ago

Let f(x) = 4 – x^2-, g(x) = 2 – x. Find (f + g)(x) and its domain.

Mathematics

1 answer:

Mademuasel [1]3 years ago

5 0

(f+g)(x)=(2-x)(2+x)+(2-x)=(2-x)(2+x+1)=(x+2)×(x+3)=x^2+5x+6 & Domain=R

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Can somebody please help me figure this out?

Vera_Pavlovna [14]

Answer: You would put the 35° and the 4x+7° equal to each other.

Step-by-step explanation:

1. 4x+7=35

2. 4x+7=35 -> Subtract 7 from the positive 7 and the 35

-7 -7

3. 4x=28 -> Divide 4x and 28

4. x=7

5 0

3 years ago

Which statement correctly compares the mean number of students for the data in the plots?

satela [25.4K]

Answer:

"There are about 2 more students in each class at Oak Middle School than at Poplar Middle School."

Step-by-step explanation:

We need to compute the mean for each.

Poplar Middle School:

Lets list the numbers

20,20,20,21,21,21,21,21,22,22,22,22,22,22,22,23,23,23,23,24

The average is sum of all divided by number of numbers, that will be:

435/20 = 21.75

Oak Middle School:

The numbers are:

20,21,21,22,22,23,23,23,23,24,24,24,25,25,26,26,27,27,28,29

The average is sum divided by number of numbers, that will be:

483/20 = 24.15

The difference in mean is:

24.15 - 21.75 = 2.4

We can say, that is about 2 more students in Oak Middle School, correct answer choice is "2nd answer choice" - "There are about 2 more students in each class at Oak Middle School than at Poplar Middle School."

7 0

3 years ago

2x+y=70 2y+z=110 x+y+z=?

Alexeev081 [22]

No solution
Because 3 unknown needs 3 equation at least

7 0

3 years ago

What is the value of this expression when b=5? 6(2b-4)

Taya2010 [7]

6(2(5) - 4)
6(10 - 4)
6(6)
36

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3 years ago

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Tell how you can critique Jason reasoning

NeTakaya

Is there another part to your question

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3 years ago

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