The height of the rectangular cereal box is 40 cm.
<h3>How to find height of a rectangular prism?</h3>
Volume of a rectangular prism = lwh
where
- l = length
- w = width
- h = height
Therefore,
10000 = 25 × 10 × h
10000 = 250h
h = 10000 / 250
h = 40 cm
learn more on rectangular prism here: brainly.com/question/16600853
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0.000075. I asked Siri haha

The sign of a will be negative ~
let the value of be be ' -x ' , -x is a negative number (b = -x < 0)






Therefore, the term a, has a negative sign unless it's value is substituted, I.e -a = 0 ( having no sign )