3 years ago

A student evaluated −4 + (−9 12) and got an answer of 5 1/2. What might the student have done wrong?

1 answer:

3 0

Answer:

The student added +4 instead of -4 so instead of getting -13 1/2 they got 5 1/2 somehow since even if they did that it should be -5 1/2.

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2 years ago

What is the solution to -2|2.2x - 3.3| = -6.6

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Step-by-step explanation:

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3 years ago

A ladder 10 feet long rests against a vertical wall. Initially, the top of the ladder is 8 feet above the ground. If the top of

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Step-by-step explanation:

Let vertical height of ladder from ground be y and

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$y \frac{dy}{dt} + x \frac{dx}{dt} = 0$

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$6\times 2 + 8\frac{dx}{dt} = 0$

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( Ignore - ive sign)

Therefore, bottom of the ladder is sliding away from the wall at a speed of 1.5 ft/sec one second after the ladder starts sliding.

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3 years ago

Michael has $96,962 in a savings account that earns 15% annually. The interest is not compounded. How much interest will he earn

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$58177.2

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