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DerKrebs [107]
3 years ago
9

Simplify 7n - 1 - 9n + 5

Mathematics
1 answer:
Bumek [7]3 years ago
8 0

Answer: the answer is -2n + 4

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Find the difference between 8/10 and -2 Show all calculations in your final answer.
valkas [14]
=2 4/5

8/10+2

2+8/10=2 8/10

4/5- -2/1

(4x1)-(-2x5) divided by 5x1

=4- -10 divided by 5

=14/5

=2 4/5

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3 years ago
Simplify the expression. Write answer using only positive exponents.<br><br><br> (1/3a^3)^-4
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2 years ago
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What is the equation of a parabola in vertex form for a line that passed through (5,-4) and has vertex (-2,5)
Ahat [919]

\text{The vertex form of a parabola}\\\\y=a(x-h)^2+k\\\\\text{We have the vertex}\ (-2,\ 5)\to h=-2,\ k=5.\\\\\text{Substitute}\\\\y=a(x-(-2))^2+5=a(x+2)^2+5\\\\\text{We have the point}\ (5,\ -4).\\\text{Substitute the coordinates of the point to the equation:}\\\\-4=a(5+2)^2+5\\\\-4=a(7)^2+5\\\\-4=49a+5\qquad|-5\\\\-9=49a\qquad|:49\\\\a=-\dfrac{9}{49}\\\\Answer:\ \boxed{y=-\dfrac{9}{49}(x+2)^2+5}

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3 years ago
Solve the equation 4.1g+6=2.1g+12.
SSSSS [86.1K]

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Step-by-step explanation:

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Fine the value of the x in the triangle shown below.
Sever21 [200]

Answer:

x=28

Step-by-step explanation:

The interior angles of a triangle must add to 180 degrees

Therefore,

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Combine like terms by adding 79 and 73

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152-152+x=180-152

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So, x is equal to 28 degrees

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3 years ago
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