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saveliy_v [14]
3 years ago
8

If ƒ(x ) = x 2 + 1, find ƒ(a + 1).

Mathematics
1 answer:
nirvana33 [79]3 years ago
8 0
f(x)=x^2+1\\\\
f(a+1)=(a+1)^2+1=a^2+2a+1+1=a^2+2a+2\\\\
Solution\ is\ f(a+1)=a^2+2a+2
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Draw a hexagon with exactly two outside diagonals
Drupady [299]
It is not possible to draw here. I am attaching the diagram along with the answer. I hope the diagram will be clear for you to understand. I also hope that this is the answer that has actually come to your desired help. You can draw it with pencil, if you want to make it perfect.

4 0
3 years ago
NEED BOTH ANSWERED!!!<br><br>Is the relation a function?<br><br>○ True<br>○ False
LiRa [457]

Answer:

The first picture without the diagram is true, and the other one is false.

Step-by-step explanation:

A relation can be a function if the domain has exactly one range. IT CANT HAVE TWO Y-VALUES.

8 0
3 years ago
Suppose on a certain test, fifty students earn a perfect score and fifty students earn a zero. determine the mean grade and stan
kodGreya [7K]

Answer:

Mean=50.

standard deviation=50.

Step-by-step explanation:

Let the perfect score be 100.

The mean(average) of a data is given by: Mean=\frac{sum of data points}{number of data points}

Here the number of data points are 100. out of which 50 attains a value 100,and 50 attains value 0.

so, sum of data points=50×100+50×0=5000.

Mean=\frac{5000}{100}

Mean=50.

"Now the standard deviation of data points are calculated by firstly subtracting mean from every entry and then square the number and take it as new entry and calculate the mean of the new data entry and lastly taking the square root of this new mean".

Here if 50 is subtracted from each entry the new entry will have 50 entries as '50' and 50 entries as '-50'.

next on squaring we will have all the 100 entries as '2500'.

now the mean of these entries is: \frac{2500\times100}{100}

                                                         =2500

taking it's squareroot we have \sqrt{2500}=50

Hence, standard deviation=50.




5 0
3 years ago
Read 2 more answers
Simone bought 3.42 pounds of green apples and 2.19 of red apples.She used 3 pounds to make a pie.How many pounds of apples are l
Dima020 [189]
Well, since she bought 3.42 pounds of green apples, then you can subtract 3 lbs off of that, so she bought .42 lbs of green apples, and 2.19 lbs red apples
So now, you just need to add .42 and 2.19
.42 + 2.19 = 2.61, so she has 2.61 lbs of apples left
Hope this helped!
3 0
3 years ago
We will now use energy considerations to find the speed of a falling object at impact. Artiom is on the roof replacing some shin
ohaa [14]

Answer:

v = 8.49 m/s rounded off to 3 significant figures

Step-by-step explanation

Using Energy Conservation

U = Tk + Vp (Sum of kinetic Tk Energy and gravitational potential Vp Energy)

  1. At height = 3.67 m, the hammer was still or the velocity was negligible; hence, vi = 0 m/s.
  2. Ui = 0 + mgh
  3. At ground all potential energy is converted to kinetic; hence, Uf = \frac{1}{2}mv².
  4. Since total energy of the system remains constant we equate Ui to Uf.
  5. Ui = Uf
  6. mgh = \frac{1}{2}mv²
  7. After cancelling out masses and making v the subject of the formula we get:

v = \sqrt[2]{2gh} = \sqrt[2]{2*9.81*3.67} = 8.49 m/s rounded off to 3 significant figures

3 0
3 years ago
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