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Tamiku [17]
3 years ago
9

Someone please help me

Mathematics
1 answer:
uranmaximum [27]3 years ago
6 0

Answer:

The answer is C.

Step-by-step explanation:

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Which graph represents the function? f(x)=(x+2)^2 if x<−1
IgorC [24]

Answer:

option B

Step-by-step explanation:

To get the graph of piecewise function

We make a table for each function

Plug in end points  and make a table

First function f(x) = (x+2)^2 if x<-1

x <-1 so we pick number for x  less than -1. Also we use -1 but we use open circle at x=-1

x         y = (x+2)^2

-3         (-3+2)^2= 1

-2         (-2+2)^2 = 0

-1           (-1+2)^2 = 1

Now plot the table on graph

second function f(x) = |x| + 1 if -1<=x<=1

Make a table, we use -1, 0  and 1 because we have -1<=x<=1 (-1 and 1 are included)

x        y=|x| +1

-1         |1| + 1 = 2

0        |0|+1 = 1

1          |1|+1= 2

Third function  y=-\sqrt{x}  if x>1

We find out y when x=1 and make a open circle at x=1 because we have x>1

x       y=-\sqrt{x}

1         -\sqrt{1}=-1

4         -\sqrt{4}=-2

Plot all the point on the graph

Correct graph is attached below


5 0
4 years ago
Why does this have ads
Sergio039 [100]

Answer:The reason for brainly having ads is because this platform is free, therefore they need ad revenue

Step-by-step explanation:

4 0
3 years ago
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A rock concert promoter scheduled an outdoor concert on July 4th. If it does not rain, the promoter will make $30,427. If it doe
Zielflug [23.3K]

For the probability of rain on julty 4h of 0.5 his expected profit is  8885.5 dollars.

<h3>What is probability?</h3>

The probability is occurrence of a certain event out of the total number f events that can happen.

Given in the question the probability of rain is 0.5 therefore the probability of not raining is also 0.5.

If it does not rain he makes a profit of 30427 dollars and if it rains he suffers a loss of 12656 dollars.

We know, the expected profit is,

= 0.5(30427) - 0.5(12656).

= 15213.5 - 6328.

= 8885.5 dollars.

learn more about probability here :

brainly.com/question/11234923

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8 0
1 year ago
A board game has a spinner divided into sections of equal size. Each section is labeled with a number between 1 and 5. Which num
Valentin [98]

Answer:

75

Step-by-step explanation:

first, there are three 5's on the spinner, with a total of 12 sections. 3/12 = 0.25, so you multiply 0.25 times 300 (the total spins) and get 75

3 0
3 years ago
How do you integrate <img src="https://tex.z-dn.net/?f=%5Cint%5Climits%20%5Cfrac%7Bx%7D%7B%5Csqrt%7Bx%2B1%7D%20%7D%20dx" id="Tex
Svetradugi [14.3K]

Answer:

⅔ √(x + 1) (x − 2) + C

Step-by-step explanation:

∫ x / √(x + 1) dx

Add and subtract 1 to the numerator.

∫ (x + 1 − 1) / √(x + 1) dx

Split the fraction.

∫ [ (x + 1) / √(x + 1) − 1 / √(x + 1) ] dx

∫ [ √(x + 1) − 1 / √(x + 1) ] dx

Rewrite with exponents.

∫ [ (x + 1)^½ − (x + 1)^-½ ] dx

Use u-substitution.

u = x + 1, du = dx

∫ (u^½ − u^-½) du

Integrate using power rule.

⅔ u^(3/2) − 2 u^½ + C

Factor.

u^½ (⅔ u − 2) + C

⅓ u^½ (2 u − 6) + C

Substitute back.

⅓ (x + 1)^½ (2 (x + 1) − 6) + C

Simplify.

⅓ √(x + 1) (2x + 2 − 6) + C

⅓ √(x + 1) (2x − 4) + C

⅔ √(x + 1) (x − 2) + C

4 0
3 years ago
Read 2 more answers
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