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Nataly [62]
3 years ago
7

A coordinate grid is shown below. 12 11 -1 0 -1 -2 Part A: Which point represents the origin? (2 points) Part B: Starting from t

he origin, explain how to plot the following three points accurately (1,-1) (-1.1.25) (-2,3) (8 points)​

Mathematics
1 answer:
Veronika [31]3 years ago
7 0

Answer:

Part A: <u>Which point represents the origin? </u>

  • The origin is the point with both zero coordinates: (0, 0)

Part B: <u>Starting from the origin, explain how to plot the following three points accurately (1,-1) (-1.1.25) (-2,3).</u>

Reference point is the origin for below.

  • (1,-1) - go <u>right </u>by 1 unit and <u>down </u>by 1 unit, plot the point
  • (-1.1.25)- go <u>left </u>by 1 unit and <u>up </u>by 1.25 or 1 and 1/4 units, plot the point
  • (-2,3) - go <u>left </u>by 2 units and <u>up</u> by 3 units and plot the point
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Please help!!! Thank you!!!
Reptile [31]
To find the total area of this figure, it would be easiest to find the area of the left part (rectangle) and then find the area of the right part (triangle), and then add the two area values together.

First, we will find the area of the rectangle, using the formula A = lw, where l is the length of the rectangle and w is the width of the rectangle.
The length of the rectangle is 13 cm and the width is 9 cm. If we substitute in these values into our equation, we get:
A = (13cm)(9cm)
A= 117 cm^2

Next, let’s find the area of the triangle, using the formula A=(1/2)bh, where b is the base of the triangle and h is the height.
The base of the triangle is 11 cm and the height of the triangle is 5 cm (found by subtracting 13-8 as seen in the figure). If we substitute in these values and simplify, we get:
A=1/2(11cm)(5cm)
A=1/2(55cm^2)
A=27.5 cm^2.

When we add together the area of the rectangle with the area of the triangle, we will get the total area of the figure.

117 cm^2 + 27.5 cm^2 = 144.5 cm^2
Your answer is 144.5 cm^2 or the first option.

Hope this helps!
8 0
3 years ago
Determine if y=-2x-7 and -y=2x+13 are parallel, perpendicular, coincide or none of these
Goryan [66]
If you move the negative on the left side of the second equation over to the right side, then we can see that the equation is equivalent to y={-2x} - 13.

Remember that an equation y = mx + b represents a line with slope m and y-intercept b. Since both equations given have a slope of -2, but have different y-intercepts, they are parallel.
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3 years ago
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$475.   because 285/30 = 9.5 and 9.5 x 50 = 475
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Answer:

12

Step-by-step explanation:

Through 12 years  he would have painted 72 paintings and since he hasn't sold two of them he has only sold 70.

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Answer:

B

Step-by-step explanation:

because i done this before

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