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Salsk061 [2.6K]
3 years ago
7

Solve the equation x^13-2x^12-x^11+2x^10=0 in the real number system

Mathematics
1 answer:
Lemur [1.5K]3 years ago
7 0

Answer:

x= -1,  x=1  and x=2

Step-by-step explanation:

The equation is;

x^{13} -2x^{12} -x^{11} +2x^{10} =0

Using a graph tool to graph the equation and identify the solution you will have;

x= -1,

x=1

x=2

Check answers

when x=2

2^{13}-2(2^{12} )-2^{11} +2(2^{10} )\\\\\\2^{13} -2^1(2^{12} )-2^{11} +2^1(2^{10} )\\\\\\2^{13} -2^{13} -2^{11} +2^{11} =0

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50 + 34 x 6 - 23. ​
dolphi86 [110]

Answer: 231

Step-by-step explanation: We can use PEMDAS (parentheses, exponents, multiplication, division, addition, subtraction) in order. Multiply 34 and 6: 204.

50 + 204 - 23. Add 50 and 204: 254. Subtract 254 and 23: 231.

6 0
3 years ago
Mrs. Parker takes 12 minutes to bake 4 tortillas. At this same rate, Mrs. Parker will take minutes to bake 24 tortillas.
loris [4]

Answer:

72 mins

Step-by-step explanation:

12/4=3 tortillas per min

3 x 24 = 72 min to bake 24 tortillas

Hope this helps :D

6 0
2 years ago
a pizza was cut into fifths. each of these fifths is cut into thirds. what fraction of the pizza is each of the final pieces
AnnZ [28]

Answer: 1/15


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3 0
3 years ago
Evaluate arccos (-1/2)
Crazy boy [7]

Answer:

120 degrees

Step-by-step explanation:

plugged into calculator

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3 0
3 years ago
Determine the zeros of the function f(x) = 3x^2 -7x+1
IceJOKER [234]
I will use the quadratic formula.

\text{The zeros of function:}\ f(x)=0\\\\f(x)=3x^2-7\\\\f(x)=0\to3x^2-7x+1=0\\\\a=3;\ b=-7;\ c=1\\\\b^2-4ac=(-7)^2-4\cdot3\cdot1=49-12=37\\\\x_1=\dfrac{-b-\sqrt{b^2-4ac}}{2a};\ x_2=\dfrac{-b+\sqrt{b^2-4ac}}{2a}\\\\x_1=\dfrac{-(-7)-\sqrt{37}}{2\cdot3}=\dfrac{7-\sqrt{37}}{6}\\\\x_2=\dfrac{-(-7)+\sqrt{37}}{2\cdot3}=\dfrac{7+\sqrt{37}}{6}

6 0
3 years ago
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