-11x-7y=-56 slope intercept

Look at shape III in graph 2. Is there a dilation that maps shape II onto shape III? If so, what is the scale factor and is it a

DIA [1.3K]

Answer:

The shape is a reduction, and the scale factor is actually 2/3.

Step-by-step explanation:

4 0

1 year ago

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A movie complex has eight different movie theaters. The manager if the complex wants to conduct a survey to determine which snac

GalinKa [24]

The answer is most likely D but that is my opinion

7 0

2 years ago

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A = 11m, b = 8m and C = 2m for the triangle shown below.

Aleksandr-060686 [28]

Answer:

x = $\sqrt{53}$

Step-by-step explanation:

Using Pythagoras' identity on the upper right triangle.

The square on the hypotenuse is equal to the sum of the squares on the other 2 sides.

Let the third side be d, then

d² + b² = a² , that is

d² + 8² = 11²

d² + 64 = 121 ( subtract 64 from both sides )

d² = 57

Using Pythagoras' identity on the lower right triangle, then

x² + c² = d²

x² + 2² = 57

x² + 4 = 57 ( subtract 4 from both sides )

x² = 53 ( take the square root of both sides )

x = $\sqrt{53}$

4 0

2 years ago

Kiemanh is solving the equation 15r-6r=36. What is the value of r?

Vilka [71]

Move all terms that don't contain r to the right side, and solve.
r = 4

4 0

2 years ago

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NO LINKS!! Please help me with this problem

12345 [234]

Answer:

$\frac{x^2}{784}+\frac{y^2}{400}=1$

Step-by-step explanation:

Horizontal Major Axis:

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

Vertical Major Axis:

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

So these two expressions are essentially the same with the only difference being the location of "a" and "b". The length of the major axis will be "2a" and the length of the minor axis will be "2b". The way I remember this is because when you have the horizontal major axis the "a" value is in the denominator of the (x-h) and I think of "x" as a horizontal value, since it moves a point horizontally. When you have a vertical major axis the "a" value is in the denominator of (y-k) and I think of "x" as a vertical value, since it moves a point vertically.

So just by looking at the graph, you can easily determine that the eclipse has a horizontal major axis. This can be further proven, since the distance from the origin on the right side is 28, and the distance from the the top to the origin is only 20.

So you could set up an equation to solve for a, since 2a = length of major axis, but since we're given the two points, the "a" value is really just the length from the origin to the right/left side, and combining these together you get the value of 2a/major axis, but you don't have to do that. So by looking at the graph you'll see the distance from the origin to the right side is 28. This means "a=28"

You can do the same thing here for the "b" value, and since the top is 20 units away from the origin, "b = 20"

So now let's set up the equation:
$\frac{x^2}{28^2} + \frac{y^2}{20^2}=1$

Square the values in the denominator

$\frac{x^2}{784}+\frac{y^2}{400}=1$

5 0

1 year ago