3 years ago

Is x^2+13x-4=0 a quatratic function

Mathematics

1 answer:

antiseptic1488 [7]3 years ago

4 0

Yes because it is in the form ax^{2} +bx+c and a, b and c are not zero

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GREYUIT [131]

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3 years ago

Emelia measures the weight of a rock to be 30 grams. The actual weight of the rock is 24 grams. Determine Emelia's percent error

Shalnov [3]

Answer: 25%

Step-by-step explanation:

Given

Emelia measures the weight of the rock to be 30 gm

The actual weight was 24 gm

Percentage error is given by

$\Rightarrow \dfrac{\text{Deviation }}{\text{Actual value}}\times 100$

Insert the values

$\Rightarrow \dfrac{30-24}{24}\times 100\\\\\Rightarrow \dfrac{6}{24}\times 100\\\\\Rightarrow 25\%$

Therefore, the percentage error is 25%.

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Yuki888 [10]

Answer:

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Step-by-step explanation:

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3 years ago

If the line passing through the points (a, 1) and (−2, 6) is parallel to the line passing through the points (−12, 9) and (a + 2

iren2701 [21]

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3 years ago

Here are two triangles.

devlian [24]

Answer: no its a reflection.

Step-by-step explanation:

you can see that no matter how you rotate triangle be it can not get all the angles to match but if you were to fold it in half they are a perfect fit. :)

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3 years ago