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3 years ago

I need help marking brainliest

Mathematics

2 answers:

Furkat [3]3 years ago

7 0

Answer: 2

Explanation: 1 makes no sense. With 3 there would still be the pollution to worry about and there’s the same problem with 4. Because there is more pollution the cricket frogs would die out.

saw5 [17]3 years ago

3 0

Answer:

2) Decreases as the habitat is increasingly polluted

Step-by-step explanation:

number 1 make no sense. 3; at the start, say the population is x. but taking into account the pesticide, it cant no longer ramain the same (pesticide kills some of the x) . 4; similar to the case for answer 3

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bagirrra123 [75]

Answer:

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Step-by-step explanation:

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3 years ago

Read 2 more answers

Charlotte is running at a rate of 9 km/h<br> what is charlottes speed in m/s<br>

Harrizon [31]

Answer: The conversion factor between km and m is 1 km = 1000 m, and between hr and seconds, it is 1 hr = 3600 s. Let's first convert 9 km/hr to m/hr.

9 km/hr x (1000 m / 1 km) = 9000 m/hr

Then use the 2nd conversion factor to convert hr to seconds.

9000 m/hr x (1 hr / 3600 s) = 9000 / 3600 m/s = 5/2 m/s

Step-by-step explanation:

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3 years ago

Consider the equation below -2(5x + 8) = 14 + 6x complete the statements below with the process used to achieve steps 1-4

Ad libitum [116K]

Step-by-step explanation:

1. Distribute the -2. multiply-2 with 5x and 8. it will be -10x-16=14+6x. For me, i make small numbers negative or positive than big ones. Add 16 to both sides. it will be -10x=30+6x. Subtract 6x. -10x-6x=-16x. Divide both sides by 16. x=30/16= 1 and 14/16

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3 years ago

A rectangle has a height of x+3 and a width of x+7. what is the area?

stiks02 [169]

Answer:

4x+7

Step-by-step explanation:

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4 years ago

Iodine-131 has a half-life of 8 days. How much would be left of an original 40 g sample after 40 days?

Yuri [45]

Answer:

d) 1.25 g

Step-by-step explanation:

If it has a half life of 40 days, there will be 5 half-lives in that span of time so if you divide 40 by 2, 5 times or just $\frac{40}{2^{5} }$ , it will equal 1.25.

$\frac{40}{2}=20\\$

$\frac{20}{2} =10$

$\frac{10}{2} =5$

$\frac{5}{2} =2.5\\$

$\frac{2.5}{2} =1.25$

8 0

3 years ago