• ### I washed my eyes with 3 gpm water flow from faucet. Is this have caused me any ocular damage? Serious answers please.?

If water damages eyes, wouldn't we all be blind from taking showers?
If water damages eyes, wouldn't we all be blind from taking showers?
2 answers · Optical · 8 hours ago

50 + 70 + 90 + ... = 4370 50 + (50 + 20) + (50 + 40) + ... = 4370 rearrange this with the associative property 50 + 50 + ... + 50 + 20 + 40 + 60 + ... = 4370 ..........................n 50 * (n + 1) + 20∑ i = 4370 for some integer, n .........................i=1 50n + 50 + 20(n(n + 1))/2 = 4370 50n + 10(n(n + 1)) = 4320 50n + 10n^2 + 10n =... show more
50 + 70 + 90 + ... = 4370 50 + (50 + 20) + (50 + 40) + ... = 4370 rearrange this with the associative property 50 + 50 + ... + 50 + 20 + 40 + 60 + ... = 4370 ..........................n 50 * (n + 1) + 20∑ i = 4370 for some integer, n .........................i=1 50n + 50 + 20(n(n + 1))/2 = 4370 50n + 10(n(n + 1)) = 4320 50n + 10n^2 + 10n = 4320 10n^2 + 60n = 4320 n^2 + 6n = 432 n^2 + 6n + 9 = 441 n + 3 = 21 or n + 3 = -21 n = 18 or n = -24 Discard n = -24 because it makes no sense for this problem, leaving just n = 18 We need to include n = 0 for the first year he saves 50 + 0 * 20 = \$50 so the number of years is 18 + 1 = 19.
7 answers · Mathematics · 8 hours ago
• ### Cooking, how can you make 1 L orange juice quickly?

Buy it at the store or squeeze the juice from oranges into a 1 L container.
Buy it at the store or squeeze the juice from oranges into a 1 L container.
7 answers · Cooking & Recipes · 9 hours ago
• ### Why are pizza's (that are round) in square boxes?

Square boxes are easier and, therefore, cheaper to make than circular boxes.
Square boxes are easier and, therefore, cheaper to make than circular boxes.
8 answers · Mathematics · 19 hours ago
• ### I roll two fair six-sided dice. What is the probability that my roll totals 8?

ways to roll 8: 6,2 5,3 4,4 3,5 2,6 p(roll 8 with 2 dice) = 5/36
ways to roll 8: 6,2 5,3 4,4 3,5 2,6 p(roll 8 with 2 dice) = 5/36
6 answers · Mathematics · 20 hours ago
• ### Please can someone explain to me what i can do with a raspberry pi?

If you mean raspberry pie, then eat it.
If you mean raspberry pie, then eat it.
6 answers · Mathematics · 20 hours ago
• ### Factorise 4x + 22?

4x + 22 = 2(2x + 11)
4x + 22 = 2(2x + 11)
8 answers · Mathematics · 1 day ago
• ### What is the solution to solving droughts?

Have irrigation in place to use as needed.
Have irrigation in place to use as needed.
5 answers · Earth Sciences & Geology · 1 day ago
• ### What is 2x squared= -72 using square roots?

2x^2 = -72 x^2 = -36 x = 6i or x = -6i
2x^2 = -72 x^2 = -36 x = 6i or x = -6i
10 answers · Mathematics · 1 day ago
• ### Is 32/50 a perfect square?

yes 32/50 = 16/25 = (4/5)^2
yes 32/50 = 16/25 = (4/5)^2
4 answers · Mathematics · 1 day ago
• ### What is the least common multiple of 16,24,36?

16: 2 * 2 * 2 * 2 24: 2 * 2 * 2 * ....3 36: 2 * 2 * .........3 * 3 ---------------------------- ......2 * 2 * 2 * 2 * 3 * 3 = 144 = least common multiple
16: 2 * 2 * 2 * 2 24: 2 * 2 * 2 * ....3 36: 2 * 2 * .........3 * 3 ---------------------------- ......2 * 2 * 2 * 2 * 3 * 3 = 144 = least common multiple
6 answers · Mathematics · 3 days ago
• ### What is the answer to the flowing equation, 5(4x +3) - 2x?

an expression, not an equation, but 5(4x +3) - 2x = 20x + 15 - 2x = 18x + 15
an expression, not an equation, but 5(4x +3) - 2x = 20x + 15 - 2x = 18x + 15
6 answers · Mathematics · 3 days ago
• ### Help with this math problem!?

Best answer: Bernhard is right. The sine of an angle is the ratio of the opposite side length to the hypotenuse's length. The hypotenuse is always the longest side so the ratio must be between -1 and 1.
Best answer: Bernhard is right. The sine of an angle is the ratio of the opposite side length to the hypotenuse's length. The hypotenuse is always the longest side so the ratio must be between -1 and 1.
1 answer · Mathematics · 3 days ago
• ### Simplify d/dx (3x^3-x)/(2x^3+x)?

d/dx((3x^2 - x)/(2x^3 + x)) = d/dx((3x - 1)/(2x^2 + 1)) = ... now use the quotient rule (3(2x^2 + 1) - (4x)(3x - 1))/(2x^2 + 1)^2 = (6x^2 + 3 - 12x^2 + 4x)/(4x^4 + 4x^2 + 1) = (-6x^2 + 4x + 3)(4x^4 + 4x^2 + 1)
d/dx((3x^2 - x)/(2x^3 + x)) = d/dx((3x - 1)/(2x^2 + 1)) = ... now use the quotient rule (3(2x^2 + 1) - (4x)(3x - 1))/(2x^2 + 1)^2 = (6x^2 + 3 - 12x^2 + 4x)/(4x^4 + 4x^2 + 1) = (-6x^2 + 4x + 3)(4x^4 + 4x^2 + 1)
3 answers · Mathematics · 5 days ago
• ### Does liking snakes officially make me an old person?

No, the two are unrelated.
No, the two are unrelated.
10 answers · Reptiles · 5 days ago
• ### 1/3, 3/5, 5/7, 7/9, 9/11,...If the pattern continues, what is the 100th fraction in the sequence? show your work?

a_n = (2n - 1)/(2n + 1) a_100 = (2(100) - 1)/(2(100) + 1) = 199/201
a_n = (2n - 1)/(2n + 1) a_100 = (2(100) - 1)/(2(100) + 1) = 199/201
13 answers · Mathematics · 5 days ago
• ### How many r2 droids can there be assuming their designation must have 4 values, the first two are r2, the third must be a letter and the?

1 * 1 * 26 * 10 = 260
1 * 1 * 26 * 10 = 260
2 answers · Mathematics · 5 days ago
• ### Domain & range of f(x)=2(1/3)^x?

domain: all real numbers range: (0, ∞) lim f(x) = ∞ x-> -∞ lim f(x) = 0 x-> ∞
domain: all real numbers range: (0, ∞) lim f(x) = ∞ x-> -∞ lim f(x) = 0 x-> ∞
3 answers · Mathematics · 5 days ago
• ### 2sin theta cos theta= cos theta?

2sinxcosx = cosx 2sinxcosx - cosx = 0 cosx(2sinx - 1) = 0 cosx = 0 or 2sinx - 1 = 0 cosx = 0 or sinx = 1/2 x = 2npi or x = pi/6 + 2npi or x = 5pi/6 + 2npi for all integers, n
2sinxcosx = cosx 2sinxcosx - cosx = 0 cosx(2sinx - 1) = 0 cosx = 0 or 2sinx - 1 = 0 cosx = 0 or sinx = 1/2 x = 2npi or x = pi/6 + 2npi or x = 5pi/6 + 2npi for all integers, n
6 answers · Mathematics · 6 days ago
• ### Why do Sagittarius act like they know a person fully?

They overestimate their abilities.
They overestimate their abilities.
10 answers · Horoscopes · 6 days ago