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3 years ago

System of linear equations has been graphed in the diagram. Determine a reasonable solution for the system of equations.

Mathematics

1 answer:

umka2103 [35]3 years ago

7 0

Answer:

D) (0, -3)

Step-by-step explanation:

The solution of two linear equations is the point of intersection of their graphs.

From the graph, the point of intersection of the graphs of the two linear equations is on the y-axis. So, the $x$ value on the $y$ axis is always 0. Also, the point is below the x-axis. So, the $y$ value of the point will be negative.

From the choices given, only (0,-3) matches the above conditions.

Therefore, the correct choice is D. (0, -3).

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0*0^1 Who ever can answer gets free points

PIT_PIT [208]

Answer:

Step-by-step explanation:

So since 0 to the first power is 0 then we would have 0*0 and that equals 0.

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4 years ago

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What is 8d(2d+8)+d squared Simplify THANKS GUYS

pshichka [43]

8*2=16
8*8=64
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3 years ago

Mia found the area of a polygon The area is 32 square cm.

solniwko [45]

Answer:

Only the isosceles trapezoid has an area of 32 cm².

Step-by-step explanation:

Let's calculate the area of each polygon.

For the two triangles we have:

$A_{t} = \frac{bh}{2} = \frac{2 cm*4 cm}{2} = 4 cm^{2}$

This polygon does not have an area of 32 cm².

For the rectangle we have:

$A_{r} = bh = 6 cm*4 cm = 24 cm^{2}$

This polygon does not have an area of 32 cm².

For the rectangle trapezoid we have:

$A_{rt} = A_{t} + A_{r} = (4 + 24) cm^{2} = 28 cm^{2}$

So, this polygon does not have an area of 32 cm².

Finally, for the isosceles trapezoid:

$A_{it} = A_{t}*2 + A_{r} = (4*2 + 24) cm^{2} = 32 cm^{2}$

This polygon does have an area of 32 cm².

Therefore, only the isosceles trapezoid has an area of 32 cm².

I hope it helps you!

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3 years ago

What is the standard deviation for the data set? 138, 129, 145, 134, 142, 159, 153, 142, 127 Express your answer as a decimal to

garik1379 [7]

10.5 is the standard deviation

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3 years ago

On a standardized science test, the seniors at Fillmore High School have a mean score of 430 with a standard deviation of 90.

olasank [31]

Answer:

For random samples of 100 seniors, 68% of the sample means fall between 340 and 520

Step-by-step explanation:

As a property of normal distribution, 68% of sample means fall between mean - sigma(430 - 90 = 340) and mean + sigma (430 + 90 = 520) (here, sigma is standard deviation).

Hope this helps!

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3 years ago