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Kryger [21]
3 years ago
14

NEED HELP ASAP! Subtract. (4x^2+8x−2)−(2x^2−4x+3)Answer in standard form

Mathematics
1 answer:
AlekseyPX3 years ago
4 0
(4x^2+8x-2)-(2x^2-4x+3)\\\\=4x^2+8x-2-2x^2+4x-3\\\\=(4x^2-2x^2)+(8x+4x)+(-2-3)\\\\=\boxed{2x^2+12x-5}
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tony's bike tire has a radius of 18 inches.what is the distance covered by the tire in inches after 5 rotations?
tekilochka [14]

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3ft

Step-by-step explanation:

3 0
2 years ago
two bird populations were studied and formulas were developed for each populations growth. the populations p1 and p2 are given b
STatiana [176]

Answer:

20 e^{k*10} = 60 e^{0.2*10}

We can divide both sides by 20 and we got:

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Now we can appply natural log on both sides and we got:

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Now we can divide both sides of the equation by 10 and we got:

k = \frac{ln(3e^2)}{10}= 0.30986

So then the aproximate value of k is 0.30986 and rounded would be 0.31

Step-by-step explanation:

We have the following two expression:

p_1 = 20 e^{kt}

p_2 = 60 e^{0.2t}

We know that the two populations were equal 10 years after the start of the study, so then we can create the following equation:

20 e^{k*10} = 60 e^{0.2*10}

We can divide both sides by 20 and we got:

e^{10k}= 3 e^{2}

Now we can appply natural log on both sides and we got:

10 k = ln(3e^2)

Now we can divide both sides of the equation by 10 and we got:

k = \frac{ln(3e^2)}{10}= 0.30986

So then the aproximate value of k is 0.30986 and rounded would be 0.31

6 0
3 years ago
Please help me if you can thank you.
MrRissso [65]

Answer:

Its D

Step-by-step explanation:

If r is less than q, then it is on the left side because that is the lowest position avaliabe on the number line. If s is q+1, that means s is one more than q so s is bigger than q. If q is more than r and less than s, it is in the middle of those two. So, r is on the left most side, q is in the middle, and s is on the right side because it is the most.

8 0
3 years ago
Read 2 more answers
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never [62]

Answer:

The independent variable (x) represents the members to go paintballing.

The dependent variable (y) represents the total cost.

Step-by-step explanation:

The y is always dependent on the x. The number of people attending affects the total cost of the trip. The more people attend, the more it costs.

3 0
2 years ago
Not sure what this question is asking...
zalisa [80]
3)

\bf ~~~~~~~~~~~~\textit{negative exponents}\\\\
a^{-n} \implies \cfrac{1}{a^n}
\qquad \qquad
\cfrac{1}{a^n}\implies a^{-n}
\qquad \qquad 
a^n\implies \cfrac{1}{a^{-n}}
\\\\
-------------------------------\\\\
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\\\\\\
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4)

\bf 5^{-2}+5^0\implies \cfrac{1}{5^2}+1\implies \cfrac{1}{25}+1\implies \cfrac{1+25}{25}\implies \cfrac{26}{25}
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3 years ago
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