All Questions ⁺⁰237785 Questions

0

487

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PVC combustion problem

If i burn 0.80 kg of PVC in oxygen that has the molvolume 25 dm³/mole, how much air is consumed during combustion?

Guest Apr 25, 2016

0

577

1

sqrt(4*10^-9)

sqrt(4*10^-9) : what is the simplifed form?

Guest Apr 25, 2016

0

429

0

Areas

The volumes of two similar figures are given. The surface area of smaller figure is given. Find the surface area of the larger figure

Guest Apr 25, 2016

0

590

1

area

how do i find the area of a 2d ramp if they built each one sepretly 75in 72in triangle 36in21in rectangle 75in 72triangle

Guest Apr 25, 2016

0

731

1

what is the answer to this equation? -5a squared -4a (3b+2a)

what is the answer to this equation? -5a squared -4a (3b+2a)

Guest Apr 25, 2016

+5

4175

2

+564

What is the original number?

The sum of the digits of a two-digit counting number is 10. If the digits are reversed, the new number is one less than twice the original number. What was the original number?

chilledz3non Apr 25, 2016

0

758

0

+27

Music ( Matrix )

A store sold a total of 125 car stereo systems and speakers in one week. The stereo systems sold for $104.95, and the speakers sold for $18.95. The sales from these two items totaled $6926.75. How many of each item were sold?

GenWarnes Apr 25, 2016

0

994

2

+27

Music

A store sold a total of 125 car stereo systems and speakers in one week. The stereo systems sold for $104.95 and the speakers sold for $18.95. The sales from these two items totaled $6926.75. How many of each item were sold?

GenWarnes Apr 25, 2016

0

469

1

how to answer?

Guest Apr 25, 2016

0

502

0

Quadratic formula

-b plus or minus square root b squared minus 4ac all over 2a

Guest Apr 25, 2016

+5

789

0

+270

The cost in dollars of producing x pounds of a chemical in a factory is given by C(x). Suppose that the "marginal cost" is C'(x) = -.05+.001x

The cost in dollars of producing x pounds of a chemical in a factory is given by C(x). Suppose that the "marginal cost" is C'(x) = -.05+.001x ($/pound).

A. How much extra does it cost to increase production from 500 pounds read more ..

gretzu Apr 25, 2016

0

740

2

PLEASE HELP

If sinx is approximately 0.2588, what is the measurement of x to the nearest degree? Approximately, what is the cosine of the angle that is complementary to x?

Guest Apr 25, 2016

0

410

1

solve this please

Guest Apr 25, 2016

0

4090

2

what is 5% of 2 Trillion?

what is 5% of 2 Trillion?

Guest Apr 25, 2016

0

749

1

How can I calculate probability for a chi-squared value?

How can I calculate P(χ² > 10.562) ?
Lower would be 0, upper would be chi-squared value so 10.562 and degrees of freedom is 19.

Guest Apr 25, 2016

0

642

2

abcde=120

Hey my brain is unfortunately not so smart! 5 variables (a,b,c,d,e) are a random number between 1-5. Are there any solutions to a*b*c*d*e=120 where the same number appears more than once?

Guest Apr 25, 2016

0

433

1

what is it

what is 3x6x12 -6 then divide that by 4 then times by 5 what is the answer

Guest Apr 25, 2016

0

454

1

kek

wow looks like gr8 maths

Guest Apr 25, 2016

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