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Zarrin [17]
3 years ago
11

PLEASE HELP !   Which of the following expressions simplifies to a negative number? Select all that apply. (-1)(-1)(-1) (-1)(-1)

(-1)(-1)(-1)(-1) (-1)(-1)(-1)(-1)(-1)
Mathematics
2 answers:
padilas [110]3 years ago
8 0
Any with an odd number of minus signs.

Perhaps the 1st and 4th, if I read it right.
oee [108]3 years ago
8 0

Answer 1 and 4

(-1)(-1)(-1)

(-1)(-1)(-1)(-1)(-1)

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Five divided by the sum of three times a number and one is equal to 20. find the number
Kipish [7]

Answer:

4

Step-by-step explanation:

5 divided by 3 times

5/5/5=.2

.2*20=4

8 0
3 years ago
What number would you add to the equation below to complete the square?x2 + 4x = 0?
julia-pushkina [17]
------------------------------------------------------------------
Equation
------------------------------------------------------------------
x² + 4x = 0

------------------------------------------------------------------
Add a constant
------------------------------------------------------------------
x² + 4x + (4/2)² - (4/2)²  = 0   ← Add 2² to form perfect square

------------------------------------------------------------------
Evaluate bracket
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x² + 4x + 2² - 2² = 0

------------------------------------------------------------------
Form the perfect square
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(x + 2)² = 4 

------------------------------------------------------------------
Square root both sides
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(x+2) = \pm √4

------------------------------------------------------------------
Evaluate the square root
------------------------------------------------------------------
(x+2) = \pm 2

------------------------------------------------------------------
Solve x 
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x = 2 - 2 or x = -2 - 2

x = 0 or -4

------------------------------------------------------------------
Answer: The constant to add is 4 and the value of x = 0 or -4
------------------------------------------------------------------



7 0
3 years ago
Exponents of Zero<br> Simplify x^0, where <br> x does not equal 0
densk [106]

Answer:

  1

Step-by-step explanation:

Any non-zero value raised to the zero power is 1.

  x^0 = 1

7 0
3 years ago
Can you try to solve this plz
Nostrana [21]

Answer:

50 dgrees

Step-by-step explanation:

staruight line is 180 so 180 minus 130 is 50

8 0
2 years ago
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Maksim231197 [3]
The answer would be -26
-(-4)^2-10
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-16-10
-26
6 0
3 years ago
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