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emmasim [6.3K]
3 years ago
8

Answer question 30 all a&b&c

Mathematics
1 answer:
wolverine [178]3 years ago
6 0
A. Mars 37.7% and moon 16.6%.
b. not 100% sure, but could be y=.377x and y=.166x
c. 29.88
d. 425.52
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IrinaVladis [17]

Answer:

We know that a negative value is positive of all even exponents and negative for all odd exponents.

y=(-1)^x

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2 years ago
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C. formula

I hope this helps, thank you.
6 0
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Amir arranged 9 photos on a bulletin board. He put the photos in rows. Each row contains the same number of photos. How many pho
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How many solutions do these equations have
Arlecino [84]

Answer:

\large\boxed{\bold{one\ solution}\ (1,\ -4)\to x=1,\ y=-4}

Step-by-step explanation:

\left\{\begin{array}{ccc}y=2x-6\\y=-x-3\end{array}\right\\\\\text{These are linear functions. We only need two points to draw a graph.}\\\\\text{Choice two values of x, substitute to the equation,}\\\text{and calculate the values of y.}\\\\y=2x-6\\for\ x=0\to y=2(0)-6=0-6=-6\to(0,\ -6)\\for\ x=3\to y=2(3)-6=6-6=0\to(3,\ 0)\\\\y=-x-3\\for\ x=0\to y=-0-3=0-3=-3\to(0,\ -3)\\for\ x=-3\to y=-(-3)-3=3-3=0\to(-3,\ 0)\\\\\text{Look at the picture}

\text{The intersection of the line is the solution of the system of equations:}\\\\(1,\ -4)\to x=1,\ y=-4

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