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Doss [256]
3 years ago
12

4n + 12 = 4 show work and explain. solving two step equations

Mathematics
2 answers:
Anni [7]3 years ago
7 0

Answer:

n=-2

Step-by-step explanation:

4n+12=4

-12 -12

4n=-8

4n÷4=-8÷4

n=-2

Alex3 years ago
6 0

Answer:

n = -2

Step-by-step explanation:

4n + 12 = 4 [move the constant to the right hand side and change the sign]

4n = 4 - 12 [find the difference]

4n = -8 [divide both sides of the equation by 4]

n = -2 (negative two)

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The solution of - t/18 ≥ 10 is t ≤ -180 <br> True or false?
liraira [26]

Answer:

True

Step-by-step explanation:

given - \frac{t}{18} ≥ 10 (multiply both sides by 18 )

- t ≥ 180 ( multiply both sides by - 1)

Remembering to reverse the symbol as a consequence of multiplying by a negative quantity, hence

t ≤ - 180


8 0
3 years ago
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A company is choosing between two tanks for mixing chemicals. Both tanks have the same price so the company plans to choose the
Nataliya [291]
Find volume
volumecone=(1/3)(h)(pi)(r^2)

hemisphere is just a half sphere aka, 1/2 times volume of sphere so
hemisphere=(1/2)(4/3)(pi)(r^3)

fnd their volumes don't evaluate the true value till end, leav pi as pi
(or use pi key for graphing or scientific calculators)


cone
d/2=r
10/2=r=5
h=15
V=(1/3)(15)(pi)(5^2)
V=(5)(pi)(25)
V=125pi

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125pi or 110.916666666666666666pi
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7 0
3 years ago
1.) (2)(8+2i)= <br> Multiplying complex numbers
Nutka1998 [239]
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4 0
3 years ago
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I need help with this
Nat2105 [25]

Answer:

angle B is 38°

Step-by-step explanation:

all angles in a triangle has to equal 180°.

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Then take 180 - 142 = 38°

4 0
3 years ago
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Answer:

2 pounds

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Equation:

1 pound · (2) = 1/2 hour · (2)

2 = 1 hour

4 0
3 years ago
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