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stich3 [128]
2 years ago
6

Which algebraic expression is equivalent to the expression below?

Mathematics
1 answer:
Colt1911 [192]2 years ago
7 0

Answer: C) 10n +19

Step-by-step explanation:

Let's simplify the provided expression (3n+13) + (6+7n)

Since this is just addition we can just remove the parenthesis and use the commutative property to make adding easier

3n+13+6+7n

3n+7n+13+6

10n+19

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Step-by-step explanation:

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≈9.42(5.75)

≈54.165 in²

number of cans=1000/54.165

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material used=18×54.165≈975 in²

material left=1000-975=25 in²

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Write an equation of the circle with center (-7, 4) and radius 8.
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answer

(x+7)^2 + (y-4)^2 = 64

set up equation

the equation of a circle is (x - h)^2 + (y - k)^2 = r^2

where h is the center x coordinate and k is the center y coordinate

values

from the point (-7,4) we know that h = -7 and k = 4

since the radius is 8, r^2 = 8^2 = 64

plug in values

now that we have all the values, we plug them into (x - h)^2 + (y - k)^2 = r^2

(x - h)^2 + (y - k)^2 = r^2

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3 years ago
Jaron paid $13.80 for 5 tickets to the game. At the same rate, how much would 3 tickets cost? *
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Answer:

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Step-by-step explanation:

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A substance is tested and has a ph of 7.0. how would you classify it? a. a strong acid b. a strong base c. a weak acid d. neutra
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<u>A substance is tested and has a </u><u>Ph of 7.0</u><u>. It would be </u><u> a weak acid. </u>

<u>The correct option is </u><u>(c) a weak acid .</u>

<u></u>

What is the nature of substance if the pH is less than 7?

  • Acidity is defined as pH below 7. More than 7 pH is considered basic.
  • Each whole pH number below 7 is ten times more acidic than the next higher value since the pH scale is logarithmic.
  • For instance, pH 4 is 100 times (10 times 10) more acidic than pH 6, while pH 5 is ten times (10 times) more acidic than pH 4.

What is pH?

  • The pH scale determines how acidic or basic water is.
  • The range is 0 to 14, with 7 representing neutrality.
  • Acidity is indicated by pH values below 7, whereas baseness is shown by pH values above 7.
  • In reality, pH is a measurement of the proportion of free hydrogen and hydroxyl ions in water.

Learn more about pH

brainly.com/question/27945512

#SPJ4

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