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viktelen [127]
3 years ago
10

What is the solution set of -|x|=-8

Mathematics
1 answer:
Novosadov [1.4K]3 years ago
5 0

-|x|=-8

-x = - 8

x = 8

and

- (-x) = - 8

 x = - 8

Answer

x = -8 ,  8

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4 years ago
"Find an integer, x, such that 5, 10, and x represent the lengths of the sides of an acute triangle.
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3^o\\x\leq5\leq10\\\\\left\{\begin{array}{ccc}x +5 \ \textgreater \  10\\ x^2+5^2 \ \textgreater \  10^2\end{array}\right\to\left\{\begin{array}{ccc}x \ \textgreater \ 5\\ x^2 \ \textgreater \ 75\end{array}\right\to\left\{\begin{array}{ccc}x \ \textgreater \ 5\\ x \ \textgreater \ \sqrt{75}\approx8.7\end{array}\right\\\boxed{x\in\O}\\\\Answer:\boxed{x=9\ or\ x=11}\to your\ answer:\boxed{\boxed{x=11}}
8 0
4 years ago
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Select all polynomial expressions that are equivalent to 6x^4 + 4x^3 – 7x^2 + 5x + 8.
Svetach [21]

Answer:

C and E

Step-by-step explanation:

Given

Polynomial: 6x^4 + 4x^3 - 7x^2 + 5x + 8.

Required

Select all equivalent polynomial

Scanning through the given options;

A:\ 16x^{10}

This is not equivalent because the degree of the polynomial begins from 10.

B: 6x^5+ 4x^4 - 7x^3 +5x^2+ 8x

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C: 6x^4+ 4x^3 - 7x^2 + 5x + 8

Compare this to the given polynomial; They are equivalent

Polynomial: 6x^4 + 4x^3 - 7x^2 + 5x + 8.

D: 8 + 5x + 7x^2 - 4x^3+ 6x^4

Reorder

D:\ 6x^4- 4x^3+ 7x^2+ 5x +8

Compare this to the given polynomial; They are not equivalent because of the difference in sign in front of 7x^2

E:\ 8 + 5x - 7x\² + 4x^3+ 6x^4

Reorder

Polynomial: 6x^4 + 4x^3 - 7x^2 + 5x + 8.

Compare this to the given polynomial; They are equivalent

Polynomial: 6x^4 + 4x^3 - 7x^2 + 5x + 8.

Hence:

<em>Option C and E answers the question</em>

4 0
3 years ago
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