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2 years ago

What is pollution ????,

Mathematics

1 answer:

Reil [10]2 years ago

5 0

Answer:

<em><u>Pollution is the introduction of harmful materials into the environment. Landfills collect garbage and other land pollution in a central location. ... They can also be created by human activity, such as trash or runoff produced by factories. Pollutants damage the quality of air, water, and land.</u></em>

Step-by-step explanation:

hope this helps you!!

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Kyle wants to earn as many points as possible in one turn in a game. Two number cubes whose sides are numbered 1 through 6 are r

qwelly [4]

Answer:

Kyle should choose Option B. The mathematical expectation of this option is 7 and is the greater mathematical expectation of the two options.

Step-by-step explanation:

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3 years ago

Assume that the distance from Earth to the moon is exactly 238,855 miles and that it took astronauts 75 hours to reach the moon

Neko [114]

You would do 238855 divided by 75 ===3184.73333 mph

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3 years ago

Read 2 more answers

Solve<br><br> 1/5 (x+3)=−(2x+3)

Rasek [7]

Answer:

Step-by-step explanation:

just simplify the LHS first.

You can either multiply 1/5 by (x+3) and then solve

multiply both sides by 5 to get rid of 1/5 on LHS

I will multiply by 5

(x+3)= -10x-15 ( 5*1/5(x+3)= -5(2x+3)

now rearrange the equation

x+3=-10x-15

-10x-15-x-3=0

-11x-17=0

-11x=17

x= -17/11

4 0

3 years ago

What is -3x^2-4x-4=0

ss7ja [257]

Answer:

<h2>no real solution</h2>

Step-by-step explanation:

$-3x^2-4x-4=0\qquad\text{change the signs}\\\\3x^2+4x+4=0\\\\\text{use the quadratic formula:}\\\\\text{for}\ ax^2+bx+c=0\\\\\text{if}\ b^2-4ac0,\ \text{then an equation has two solutions:}\ x=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}$

$\text{We have}\ a=3,\ b=4,\ c=4.\\\\\text{Substitute:}\\\\b^2-4ac=4^2-4(3)(4)=16-48=-32$

8 0

3 years ago

Thirty-five percent of what number is 17.5?

Naddika [18.5K]

I believe its 50 because 0.35x50=17.5 (35%=0.35)

4 0

3 years ago

What is pollution ????,​

What is pollution ????,