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enot [183]
3 years ago
7

For f (x) = 2x+1 and g(x) = x2-7, find (f 3)(x).

Mathematics
1 answer:
Lerok [7]3 years ago
3 0

It would be 4x +8

Step-by-step explanation: combine like terms 2x and 2x would be 4x and add 7 and one

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I don't understand this plz help explain how to do it
podryga [215]

Answer:

1. U. 190

2.U. 155

3. U. 240

Step-by-step explanation:

Explanation: To find an angle of a triangle we add the angles we know about

EXAMPLE: 50 + 120. We need to find the third angle.

We know that Angles of triangles should add up to 360

So to find the third angle we add the angle we know about.

EXAMPLE: 50 + 120 = 170 then we Subtract the sum of a triangle *360*

EXAMPLE: 50 + 120 = 170

EXAMPLE: 170 - 360

EXAMPLE: = 190

That's how we find a third angle!

If this doesn't clarify how do to it enough just let me know and i can try to explain more in detail!

Hope this helps you!!!

Have a nice day!

6 0
3 years ago
Please hurry I need please
laiz [17]

Answer:

Since I'm rushing, please give brainliest

Step-by-step explanation:

It is 23.57, trust me :D

6 0
3 years ago
Read 2 more answers
A pet store advertises
nikklg [1K]

Answer:

the answer is 1.99 I think im not sure I guessed

Step-by-step explanation:

5 0
3 years ago
3. Three years ago, Jane was three times as old as Alice. In two years time, the sum of their ages will be 62. Determine their p
anzhelika [568]
3 yrs ago:

Alice - x 
Jane - 3x 

Fast forward 2 years... 1 year ago: 

Sum of their ages = 62


Equation to solve: x + 3x = 62 
                                4x = 62 
                               -----  -----
                                 4      4
 
                                 x = 15.5 

From this, we can deterime that Alice is 15 1/2 years old. 

Then, plug in 15.5 for x in 3x to find Jane's age. 

15.5 × 3 = 46.5

From this, we can determine that Jane is 46 1/2 years old. 


I hope this helps you to understand this problem better.


5 0
4 years ago
Read 2 more answers
Y = x + 4 y = −2x − 2
miskamm [114]
Y = x + 4
y = -2x - 2

x + 4 = -2x - 2
x + 2x = -2 - 4
3x = -6
x = -6/3
x = -2

y = x + 4
y = -2 + 4
y = 2

solution is (-2,2)
7 0
3 years ago
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