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kykrilka [37]
3 years ago
6

Precalculus question, image attached.

Mathematics
1 answer:
natta225 [31]3 years ago
6 0

Answer:

g(x)= x+1

Step-by-step explanation:

h(x)= (fog)(x)= f(g(x))

Given f(x)= \sqrt[3]{x+2},  f(x)= \sqrt[3]{x+3}

f(g(x))= \sqrt[3]{x+3}

f(x)= \sqrt[3]{x+2}

Replace x with g(x)

f(g(x))= \sqrt[3]{g(x)+2}

Now we need to find out what we plug in for g(X) to get x+3 under the radical

g(x) +2 is under the radical. we need x+3 , so we replace g(x) with x+`

So g(x)+2 becomes x+1+2 is x+3

Hence g(x) is x+1


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A line had a slope of -3 and a y-intercept if 3. what is the x-intercept of the line?
Helga [31]

Answer:

The answer to your question is 1

Step-by-step explanation:

Data

slope = m = -3

y-intercept = 3

Process

1.- Find the equation of the line in the slope-y-intercept form

                  y = mx + b

-Substitution

                  y = -3x + 3

2.- Find the x intercept

-If y = 0

                 0 = -3x + 3

               -3 = -3x

               -3/-3 = x

                  x = 1

-The x-intercept is 1

3 0
3 years ago
.485 or .5 which is greater and why
Llana [10]

Answer:

.5 because .485 goes all the way to thousanths and the number 4 is in the tenths and its lower so the five is in the tenths and higher than 4. So that would lead you to .5 being greater.

Mark me brainliest

6 0
3 years ago
HELP PLEASE!!
Ksju [112]

Answer:9,59,68

Step-by-step explanation:

Just got it right

7 0
3 years ago
(1 point) The shelf life of a battery produced by one major company is known to be normally distributed with a mean life of 3 ye
NeX [460]

Answer:

z=-0.994

And if we solve for a we got

a=3 -0.994*0.4=2.6024

So the value of height that separates the bottom 16% of data from the top 84% is 2.6024 years

The answer rounded would be 2.6 years approximately  

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

Solution to the problem

Let X the random variable that represent the shelf life of a population, and for this case we know the distribution for X is given by:

X \sim N(3,0.4)  

Where \mu=3 and \sigma=0.4

For this part we want to find a value a, such that we satisfy this condition:

P(X>a)=0.84   (a)

P(X   (b)

Both conditions are equivalent on this case. We can use the z score again in order to find the value a.  

As we can see on the figure attached the z value that satisfy the condition with 0.16 of the area on the left and 0.84 of the area on the right it's z=-0.994. On this case P(Z<-0.994)=0.16 and P(z>-0.994)=0.84

If we use condition (b) from previous we have this:

P(X  

P(z

But we know which value of z satisfy the previous equation so then we can do this:

z=-0.994

And if we solve for a we got

a=3 -0.994*0.4=2.6024

So the value of height that separates the bottom 16% of data from the top 84% is 2.6024 years

The answer rounded would be 2.6 years approximately  

8 0
3 years ago
use a system of linear equations with two variables and two equations to solve. a number is 11 more than another number. twice t
Eva8 [605]

The value of required two numbers x and y are 7 and -4 respectively. These values are find out using Elimination method.

Let the required first number and second numbers be x and y respectively .

We have given that, one Number is more than other by 11

i.e., the difference of two numbers is equal to 11

x - y = 11. …..(1)

And twice the sum of the two numbers is 6 i.e.,

2(x + y) = 6 => 2x + 2y = 6 => x +y = 3 …….(2)

Now , equation (1) and (2) are linear equation with two variables x and y .

We shall solve above two equations and find out the value of two variables. Using Elimination method , In which value of one variable is find out by eliminate the second variable through their coefficient comparison.

Added the equation ( 1) and (2) we get, 2x = 14 => x = 7

Put the value of x in equation (1) we get,

7 – y = 11 => y = -4

Thus, we get the values of two variables x and y is 7 and -4 respectively.

To learn more about linear equation, refer:

brainly.com/question/21243732

#SPJ4

7 0
1 year ago
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