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malfutka [58]
3 years ago
9

In the function f(x) =2x+1, what is f (5)? F (5) = {___}

Mathematics
1 answer:
Harrizon [31]3 years ago
8 0

t h e A n s w e r i s:

x = - 1 / 2

explaintion

You might be interested in
What is the standard deviation of the following test scores? Round your answer to the nearest hundredth. 82, 76, 93, 82, 73, 80
Juli2301 [7.4K]
First we find the mean (or the average)...
average : (82 + 76 + 93 + 82 + 73 + 80 / 6) = 486/6 = 81

now we subtract the average from every data point.....then square the result
82 - 81 = 1.......1^2 = 1
76 - 81 = -5....-5^2 = 25
93 - 81 = 12....12^2 = 144
82 - 81 = 1.......1^2 = 1
73 - 81 = -8.....-8^2 = 64
80 - 81 = -1.....-1^2 = 1

now we find the mean (or average) of those numbers
(1 + 25 + 144 + 1 + 64 + 1) / 6 = 236/6 = 39.33

that is ur variance....to find the standard deviation, take the square root of ur variance.....

square root 39.33 = 6.27 <==
7 0
3 years ago
Someone please help meee:/
S_A_V [24]
The answer should and must be 37.5 . you get that by dividing 30/80 which equals to 0.375 . Hence the answer times 100 which gets you 37.5
4 0
4 years ago
(у-4) (3x+5y-2) How do I multiply the following expression?<br>​
muminat

Answer:

3xy + 5y^{2}  - 12x - 22y + 8

Step-by-step explanation:

You will use the FOIL method, which is very similar to the distributive property.

In order to do multiply correctly, multiply the y by 3x, 5y, and -2. You should get:

3xy + 5y^{2}  - 2y

Then multiply the -4 by 3x, 5y, and -2 where you should get:

- 12x - 20y + 8

By using the foil method, you got rid of the parentheses. Now you can simply combine like terms and get your final answer:

3xy + 5y^{2} - 12x - 22y + 8

I hope this helps you!

3 0
4 years ago
Please help me I’m struggling!
zimovet [89]

Answer:

Points lie on the same line if and only if the points are collinear

Step-by-step explanation:

4 0
3 years ago
Factor by grouping 5·(a+3)^2-(a+3)
Y_Kistochka [10]

Answer:

(a+3)(5a+14)

Step-by-step explanation:

Hope this helps

8 0
3 years ago
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