Combine like terms to simplify the expression: 1.3b+7.8−3.2b

Mathematics

1 answer:

Tpy6a [65]3 years ago

7 0

I combined the like terms and i got 7.8-1.9b

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5) Which expression is equivalent to 4(3 + 2)?

kirill [66]

D, because if you distribute 4(3+2) it equals= 4x3
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2 years ago

A game field is 360 feet long. The practice field is 2/5 shorter than the practice field. How long is the game field?feet

vlabodo [156]

Answer:

The practice field is 144 feet long.

Step-by-step explanation:

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(You would multiply these numbers NOT divide!)

To check my math:

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By doing the above check, I know the two equations are the same. By seeing this I can know that the answer is correct.

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3 years ago

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statuscvo [17]

Answer:

0.1151 = 11.51% probability of completing the project over 20 days.

Step-by-step explanation:

Normal Probability Distribution

Problems of normal distributions can be solved using the z-score formula.

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$Z = \frac{X - \mu}{\sigma}$

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