What is the sign of -5. (-1 -2) Choose 1 answer: Positive B Negative Zero

Mathematics

1 answer:

pychu [463]3 years ago

5 0

Answer:

Negative! -5/2

Step-by-step explanation:

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How to solve and why the answer is (A)

Amanda [17]

$\dfrac{1}{2}x^2+mx=5\\
\dfrac{1}{2}x^2+mx-5=0\\\\
\Delta=m^2-4\cdot\dfrac{1}{2}\cdot(-5)=m^2+10\\
\sqrt{\Delta}=\sqrt{m^2+10}\\\\
x=\dfrac{-m\pm\sqrt{m^2+10}}{2\cdot\dfrac{1}{2}}=-m\pm\sqrt{m^2+10}$

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Find the value of x for which ABCD must be a parallelogram.

Tems11 [23]

D. X = 8 , Y = 6
3x - 14 = x + 23x - x = 2 + 142x = 162x / 2 = 16/2x = 8
To check: 3x - 14 = x + 2 ; 3(8) - 14 = 8 + 2 ; 24 - 14 = 10 ; 10 = 10
4y - 7 = y + 114y - y = 11 + 73y = 183y / 3 = 18 / 3y = 6
To check: 4y - 7 = y + 11 ; 4(6) - 7 = 6 + 11 ; 24 - 7 = 17 ; 17 = 17
hopes it helps:)

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Read 2 more answers

A. Graph A<br> B. Graph B<br> C. Graph<br> D. Graph D

igomit [66]

Answer:

Step-by-step explanation:

y = (x-1) (x+4)

when y=0

x=1 and x= -4

so select C

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The total cost to take the ferry to Greene Island is a $12 fee for the car plus $3 for each passenger in the car. The graph show

NISA [10]

Answer:

B. The y-intercept will shift down

Step-by-step explanation:

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What is the difference of the polynomials [m²n²-7]-(mn+4)

AleksAgata [21]

You can do addition and substraction operations with polynomials similarly as with simple real numbers.

First of all you have to open brackets and then you can add numbers (-7-4=-11). Then the result is following:
$(m^2n^2-7)-(mn+4) =m^2n^2-7-mn-4=m^2n^2-mn-11$

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