3 years ago

When is it logical to use 22/7 instead of 3.14 for pi

Mathematics

1 answer:

fenix001 [56]3 years ago

6 0

If you are multiplying fractions it makes the process much simpler (it gives a more exact answer, no rounding needed)

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Calculate the unit rate: write your answer as a decimal 1/2 mile in ever 1/3 hour

Alexandra [31]

Answer:

$unit \: rate = \frac{distance}{time}$

unit rate is similar to speed / velocity:

$unit \: rate = \frac{ (\frac{1}{2} )}{ (\frac{1}{3})} \\ \\ = \frac{1}{2} \div \frac{1}{3} \\ \\ = \frac{1}{2} \times \frac{3}{1} \\ \\ = > { \boxed{ \boxed{unit \: rate = \frac{3}{2} \: miles \: per \: hour}}}$

[unit rate must have units including per <time> ]

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3 years ago

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statuscvo [17]

Answer:

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Step-by-step explanation:

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3 years ago

Find the product of the monomial and the polynomial. 4a^2b^3*(9a^4b^2-4a^2+3)

Artemon [7]

Answer:

Step-by-step explanation:

4a² b³ * (9a⁴b² - 4a² + 3) = 4a²b³ * 9a⁴b² - 4a²b³*4a² + 4a²b³*3

= 36a²⁺⁴ b³⁺² -16a²⁺²b³ + 12a²b³

= 36a⁶b⁵ - 16a⁴b³ + 12a²b³

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3 years ago

Mae Ling earns a weekly salary of $330 plus a 7.5% commission on sales at a gift shop. How much would she make in a work week if

notka56 [123]

Answer:

$690

Step-by-step explanation:

The amount she makes in a week=her weekly salary + the commission on sales.

Amount=330 + 7.5% of 4800.

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The she would make if she sold $4,800 of merchandise is $690.

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4 years ago

Need help and make sure u explain ur answer

ArbitrLikvidat [17]

I think it is b because of the negative 2 so it have to go down

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