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Effectus [21]
3 years ago
7

Number line project

Mathematics
1 answer:
mote1985 [20]3 years ago
3 0

Answer:

10 and 20

Step-by-step explanation:

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Find the value of x cubed minus 2x squared minus 7x + 5 of x=1/2-√3 ​
Svetach [21]

9514 1404 393

Answer:

  3

Step-by-step explanation:

For f(x) = x^3 -2x^2 -7x +5 and x=1/(2-√3), we have ...

  f(x) = ((x -2)x -7)x +5

and ...

  x = 1/(2-√3) = (2+√3)/(2^2 -3) = 2+√3

Then ...

  f(2+√3) = ((2 +√3 -2)(2 +√3) -7)(2 +√3) +5

  = (3+2√3 -7)(2+√3) +5

  = 2(√3 -2)(√3 +2) +5 = 2(3 -4) +5 = -2 +5

  f(1/(2 -√3)) = 3

_____

If you really mean x = (1/2) -√3, then f(x) = (42√3 -3)/8.

6 0
2 years ago
Suppose that a function does have an inverse. The graph of its inverse will be the reflection of the graph of the function over
pishuonlain [190]
The Answer to this problem is (the line y=x). I'm positive that this is the right answer!!!
4 0
2 years ago
Read 2 more answers
What is the value of x? (1) x2+x+10=16 (2) x=4y4+2y2+2?
alexandr402 [8]
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5 0
3 years ago
PLEASE HELP TIMED TEST!!!! I WILL REPORT YOU IF YOU GIVE ME A LINK!!
Elenna [48]

Answer:

x=40

Step-by-step explanation:

you have to get a answer of 60

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and 2(40)-20=60

5 0
2 years ago
One day at St. Philip's High School, 1/2 of the pupils walked to school, 1/5 of the pupils came to school by bus, and the remai
Sergio [31]
The first thing to do is the make the denominators of the fractions the same. 

5/10 of the pupils walked to school and 2/10 of the pupils came to school by bus. 
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<span>3/10 of the pupils came to school by car. </span>
7 0
3 years ago
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