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GuDViN [60]
3 years ago
13

X + y = -2 2x – 3y = -9

Mathematics
1 answer:
tamaranim1 [39]3 years ago
6 0
X + y = -2
-x        -x
y= -2 -x

2x -3y = -9
2x -3(-2 -x) = -9
2x +6 +3x = -9
     -6            -6
5x = -15
5x/5 = -15/5
x= -3

y= -2 -x
y= -2 -(-3)
y= -2 +3
y= 1

the answer: (-3,1)
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David is buying a cheese wheel priced at \$650$650dollar sign, 650 before tax. The store charges 8\%8%8, percent sales tax.
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Answer:

$702

Step-by-step explanation:

To find the total price of the cheese wheel that David is buying, we need to multiply the original cost to sales tax first.

Original Cost = $650

Sales Tax Percentage= 8% or 0.08

Now let's solve for how much the sales tax is.

Sales Tax = 0.08 x 650

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So the cheese wheel that David bought is $702 with tax included.

7 0
3 years ago
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a newly-planned tree needs to be staked with three wires. each wire is attached to the trunk 3ft. above the ground, and then anc
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3ft   |   \
       |_ _\
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a²+b²=c²           Pythagorean Theorem
3²+4²=c²           simplify
c=√(3²+4²)        isolate c
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The function f(x)=2^x and g(x)=f(x)+k. if k=2, what can be concluded about the graph?
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Translations are transformations that change the position of the graph of a function. The general shape of the graph of a function is moved up, down, to the right or to the left. The translations are considered rigid transformations.
 Suppose that k> 0
 To graph y = f (x) + k, move the graph of k units up.
 To graph y = f (x) -k, move the graph of k units down.
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 Answer:
 
the graph of g (x) is shifted vertically 2 units up
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