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klasskru [66]
3 years ago
8

Substitution method x=-y 8x+3y=40

Mathematics
2 answers:
Pachacha [2.7K]3 years ago
6 0
Plug in -y for x in the equation
8(-y) + 3y = 40
5y = 40
y = 8
Delvig [45]3 years ago
4 0
The answer would be 16
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The point (0, 5) lies on circle A with the center at the origin. Does the point (0, −5 ) lie on the circle? A. Yes, because both
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<h3>Answer:</h3>

A. Yes, because both points are equidistant from the center of the circle.

<h3>Step-by-step explanation:</h3>

The point (0, 5) is 5 units from the point (0, 0).

The point (0, -5) is 5 units from the point (0, 0).

The given points are equidistant from the circle center at (0, 0), so both will lie on the circle—along with any other points that are 5 units from (0, 0).

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4 years ago
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Answer:

The region between one standard deviation from the mean is (400,600) which should be 68.27% of the data.

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The mean of this data set is 500 and the standard deviation is 100. The data that are within one standard deviation of the mean, must be in the range between 400 and 600, which according to the normal curve should be about 68.27% of the samples. The shaded region is shown in red on the attached figure.

8 0
3 years ago
Show two methods you can use to convert 60 inches to centimeters
suter [353]
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8 0
3 years ago
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fgiga [73]
First break= 1/2
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3 0
4 years ago
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Paladinen [302]

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Step-by-step explanation:

3÷90= 30

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6 0
3 years ago
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