2000(1.0625)dave vs sam 2000(1.05)+30
2125 dave vs. sam 2,100+30
2125 dave vs. sam 2130
dave is correct, because it costs five dollars less in massachusetts than in Maine

3 0

2 years ago

Which conic section does this equation represent?

nadya68 [22]

Answer:

Hyperbola

Step-by-step explanation:

$x^2-4x-y^2+6y-9=5$

Lets write variables in square form using completing the square method

LEts group x and y terms

$(x^2-4x)+(-y^2+6y)-9=5$

y^2 terms should be positive always, so we pull out negative sign from y^2

$(x^2-4x)-(y^2-6y)-9=5$

We have negative sign in the middle. so we will get equation in the form of

$\frac{(x-h)^2}{a^2} - \frac{(y-k)^2}{b^2} =1$

If we have negative sign in the middle then it is an hyperbola

8 0

2 years ago

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Solve for X: 1/3 (2x - 8)=4.

Veseljchak [2.6K]

Answer:

x = 10

Step-by-step explanation:

1/3 (2x - 8)=4.

Multiply each side by 3

1/3 *3(2x - 8)=4.*3

2x-8 = 12

Add 8 to each side

2x-8+8 =12+8

2x = 20

Divide each side by 2

2x/2= 20/2

x = 10

5 0

2 years ago

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