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kipiarov [429]
3 years ago
12

I need 2 expressions that are equal to 30m+15 when you solve them! Please be quick!

Mathematics
1 answer:
seropon [69]3 years ago
3 0

Answer:

30m + 15 = 3(10m + 5)\\

30m + 15 = 5(6m+3)

Step-by-step explanation:

Given

30m + 15

Required

Equivalent expressions

We have:

30m + 15

Factor out 3

30m + 15 = 3(10m + 5)

Also:

30m + 15

Factor out 3

30m + 15 = 5(6m+3)

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For the given table of values for a polynomial function, where must the zeros of the function lie?
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Answer:

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Step-by-step explanation:

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From x=3.0 and x=3.5, the y-values go from 4.0 (positive) to -0.2 (negative), respectively. Therefore, there must be a zero in this interval.

From x=4.0 and x=4.5, the y-values go from -0.8 (negative) to 0.1 (positive), respectively. Therefore, there must also be a zero in this interval.

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2 years ago
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Answer:

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Step-by-step explanation:

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5 0
3 years ago
Change the fraction w-3/w+5 into an equivalent fraction with the denominator w2 + w – 20.
viktelen [127]
ANSWER

\frac{ {w}^{2}  - 7w + 12}{ {w}^{2}  + w - 20 }

EXPLANATION


The given fraction is,

\frac{w - 3}{w + 5}

To get an equivalent fraction, we multiply both the numerator and the denominator by the same quantity that will give us

w²+w-20

in the denominator.


This implies that,

\frac{w - 3}{w + 5}  =  \frac{(w - 3)(w - 4)}{(w + 5)(w - 4)}

We multiply out the numerators and denominators using the distributive property to obtain,


\frac{w - 3}{w + 5}  =  \frac{ {w}^{2}  - 4w - 3w + 12}{ {w}^{2} - 4w + 5w - 20 }

This simplifies to

\frac{w - 3}{w + 5}  =  \frac{ {w}^{2}  - 7w + 12}{ {w}^{2}  + w - 20 }


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