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Lena [83]
3 years ago
14

Which two lines are parallel? 5y = 2x-5 5y= 4 + 3x 5y- 3x = -1

Mathematics
1 answer:
drek231 [11]3 years ago
6 0

Answer:

5y=4+3x, 5y-3x=-1

Step-by-step explanation:

To be parallel they must have different constants but the same slope.

5y-3x=-1

5y=-1+3x and 5y=4+3x fit these requirements.

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Can someone help me pls 25 points
Ivahew [28]

Answer:

8x^{3}

Step-by-step explanation:

By the laws of exponents we have to multiply each term in the parenthesis by the exponent on the outside:

(2x)^{3}  would be equal to = 8x^{3}

Another way we could write would be (2x)(2x)(2x) = 8x^{3}

The second one is the same, just fill in as 8 and 3

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3 years ago
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3

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3 years ago
A population of insects increases at a rate 230 + 8t + 0.9t2 insects per day (t in days). Find the insect population after 6 day
____ [38]

Answer:

The insect population after 6 days is of 1639 insects.

Step-by-step explanation:

A population of insects increases at a rate 230 + 8t + 0.9t2 insects per day

This means that r(t) = 230 + 8t + 0.9t^2

The population of insects after x days is given by:

P(t) = \int_{0}^{x}r(t)dt

So

P(x) = \int_{0}^{x} (230 + 8t + 0.9t^2)

P(x) = 230t + 4t^2 + 0.3t^3 + K|_{0}^{x}

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In which K is the initital population(which is 50). So

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After 6 days:

P(6) = 230*6 + 4*6^2 + 0.3*6^3 + 50 = 1638.8

Rounding to the nearest insect, 1639

The insect population after 6 days is of 1639 insects.

7 0
3 years ago
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hope that helps

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6 and 2/5 times 4 and 1/2 = 28.8 or 28 and 4/5 minutes

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2 years ago
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