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jess

Questions (338)

3^-5/3^-2 becomes 1/3^5/1/3^2the answer is 1/27, how did they get that? i need step by step to understand
1. 1 answer
2. 363 views
in the bible, a verse describes a circular pool at king solomon's temple, about 1000 B.C. The pool is said to be ten cubits
1. 1 answer
2. 489 views
why is every integer a rational number?
1. 1 answer
2. 294 views
how do you figure out the pattern of 1,4,9,16?
1. 4 answers
2. 323 views
4,7,12,19,28,39, I don't see one common difference & how would the next number be 52?
1. 1 answer
2. 380 views
3,6,9,15, 24,39 what is the next number in the sequence & why? i know it's going by 3 but its skipping numbers so I'm not sure
1. 1 answer
2. 2,324 views
Suppose Apple’s stock rose to $139 at the end of the week and it was up 4% from the previous week. What was the price of
1. 1 answer
2. 391 views
Suppose a third world country in the last five years is now expanding their Internet access. If they went from 2.5% of their
1. 1 answer
2. 510 views
You need to hire a part-time associate to work 30 hours a week in your store. You have $250 in labor budget for the new
1. 1 answer
2. 509 views
A theater group made appearances in two cities. The hotel charge before tax in the second city was $1000 higher than in the
1. 2 answers
2. 6,345 views
You're in an auto traveling at 25.0m/s toward a pole mounted warning siren. If the siren's frequency is 365 Hz, what frequency
1. 1 answer
2. 1,237 views
this was emily's full day yesterday: she spent 8 hours sleeping, 1 hour in the shower, 6 hours in class, 2 hours eating and
1. 3 answers
2. 779 views
a movie theater has 250 seats. One hundred tickets have been sold. What percent of fhe theater is filled?
1. 3 answers
2. 1,062 views
in order to increase the mean of 6 numbers by 3, what would the total sum of the increase be?A. 3 B.9 C.12 D.16 E.18
1. 1 answer
2. 596 views
How lnog will it take for an investment of $1000 to double in value if it earns 5% coumpounded weekly?
1. 1 answer
2. 380 views
I am a 3 digits number less than 200. the tenths place is 2x more than the ones place. the number in the ones place is 2. what
1. 1 answer
2. 402 views
what was the relationship between politics and science in the early modern world?
1. 1 answer
2. 371 views
Is 4,564,282 a prime or composite number?! Seriously, I have absolutely no idea!!!!!!
1. 2 answers
2. 513 views
what is the rule for the following: x = 1,2,3y = 2,6,12
1. 1 answer
2. 339 views
determine whether the equation has one solution, no solution, or is an identity.5y+3=26
1. 0 answers
2. 415 views
Solve x = log3 15
1. 1 answer
2. 574 views
Need help with FOV area (mm2) totally confused?im confused i have the FOV diameter they are: 4x = 5 10x = 2 40x = 0.5 a
1. 0 answers
2. 662 views
write an explicit formula for the sequence of 1/2, 3/7, 1/3, 5/19, 3/14
1. 1 answer
2. 1,698 views
Calculate the pressure drop expected on hydrogenation of the mixture of 5.00 ml of cyclohexene and 35 ml of cylclohexane. I know
1. 0 answers
2. 432 views
what is the linear approximation of f(x)=x^3-x at x=2
1. 1 answer
2. 603 views
1) Why should we clear fractions when solving linear equations and inequalities? Demonstrate how this is done with an example.
1. 1 answer
2. 874 views
Tarzan plans to cross a gorge by swinging in an arc from a hanging vine. If his arms are capable of exerting a force of 1820 N
1. 2 answers
2. 1,072 views
A satellite is in circular orbit above the Earth at an altitude of 2000 km. What is the orbital speed of the satellite? what is
1. 3 answers
2. 512 views
A wet bar of soap slides freely down a ramp 12.0 m long, inclined at 74.0 degrees. How long (in seconds) does it take to reach
1. 2 answers
2. 3,943 views
i need help with how to solve this:consider a normal distribution with mean 30 and standard deviation 2. what is the probability
1. 1 answer
2. 400 views
How can you use subtraction to complete an addition pattern? use this exercise as an example: 32, 39, 46, 53, 60, 67.
1. 7 answers
2. 3,362 views
In 1920, the record for a certain race was 45.5 sec. In 1970, It was 44.5 sec. Let R(t)=the record in the race and t=the number
1. 0 answers
2. 461 views
A triangle is such that the largest angle is 11 times the smallest angle. The third angle is 27° less than the largest angle.
1. 4 answers
2. 1,645 views
Two complementary angles are such that one is eight times larger than the other. Find the two angles.
1. 1 answer
2. 1,405 views
population of N = 10 scores has a mean of μ = 80. If 5 points are added to every score in the distribution, what is the value
1. 1 answer
2. 920 views
A chain saw requires 2 hours of assembly and a wood chipper 5 hours. A maximum of 20 hours of assembly time is available. The
1. 1 answer
2. 644 views
The expression a/a-b + b/b-a is equivalent toa) 1 b)-1 c) ab/a-b d)a+b/a^2-b^2 please help!
1. 1 answer
2. 480 views
restate the sentenceAnnually, millions of animals suffer and die in painful tests in order to determine the safety of cosmetics.
1. 3 answers
2. 398 views
What type of chemical reaction is involved in the breakdown of large molecules, such as those found in food,into smaller
1. 1 answer
2. 476 views
Hi,I have a question on Gas Chromatography(GC). The following were injected into the GC system: - 1) 1% sample solution in
1. 0 answers
2. 500 views
Chloroform is a liquid that is not soluble in water. It has a density of 1.498g/mL. Astudent mixed a sample of chloroform and a
1. 1 answer
2. 749 views
A 50.0mL sample of ethylene glycol had a mass of 55.505g. Find the density of ethylene glycol.
1. 1 answer
2. 622 views
an aeroplane flying at 600 km travels for 3 hours on a bearing of 310T how far north and how far wesr is it from its starting
1. 1 answer
2. 363 views
Hi,I have a queestion on Gas Chromatography(GC). The following were injected into the GC systemk: - 1) 1% sample solution in
1. 0 answers
2. 504 views
write the balanced chemical equation for the reaction that occurs when water is added to anhydrous BaCl2.would it be BaCl2+2H2o
1. 1 answer
2. 814 views
write the balanced chemical equation for the reaction that occurs when BaCl2.2H2O is heated.
1. 1 answer
2. 590 views
[-8+(-1)]+[8+(-6)]+(-6)Am I doing this right? I think I'm confusing myself please help... I have: [-8-1]+[8-6]-6 [-9]+[-2]-6
1. 1 answer
2. 373 views
If a bag of chips has a serving size of 1 oz.(28g/about 32 chips), and serving per container is 7. So if the bag of chips costs
1. 4 answers
2. 990 views
is this correct I2*100+3*10I=I200+30I=I230I
1. 2 answers
2. 338 views
We are learning inequalities and I just did some homework but the teacher returned it saying I did some of them wrong.1. -2x -
1. 1 answer
2. 889 views
For High Performance Liquid Chromatography (i.e. HPLC), can the column be flushed with Isopropanol (i.e. IPA)?
1. 1 answer
2. 482 views
d/dx x(1+y)^(1/2) + y(1+x)^(1/2)=0. Can some1 show me the calculation because i didn't get like the answer.[ans=-1/(1+x)^2 but
1. 0 answers
2. 418 views
Find the number c that satisfies the conclusion of the Mean Value Theorem.f(x)=x/(x+2) [1,4]
1. 1 answer
2. 904 views
Each British colony was governed according to a _____, a written agreement between the settlers and the Crown laying down the
1. 3 answers
2. 519 views
an object is dropped from a tower. the distance in t seconds is given by d(t)=4.9t^2if the height of the tower is 146.9m , how
1. 2 answers
2. 651 views
convert 56.7 into degrees, minutes and seconds
1. 1 answer
2. 464 views
convert 56.7 into degrees, minutes and seconds
1. 1 answer
2. 354 views
A mirror creates an image of magnification −1/3. (a) Is the image upright or inverted? (b) If the object is 7.75 cm tall, what
1. 1 answer
2. 1,065 views
Passed in 1935, Roosevelt's most significant reform measure was theA. Wagner Act. B. Social Security Act. C. National Labor
1. 2 answers
2. 681 views
Calculate the sodium ion concentration when 70 ml of 3.M sodium carbonate is added to 30 ml of 1.M sodium bicarbonate.
1. 1 answer
2. 803 views
iron+sulphur together are a mixture of small grains yellow and dark grey.Its chemical symbol is 'Fe + S'.When it reacts with
1. 1 answer
2. 569 views
Which element of a short story would be most important to a story about a mad scientist stealing a secret weapon?
1. 1 answer
2. 749 views
what contents in magma affects a volcanos explosive?
1. 1 answer
2. 874 views
Can dimethylformamide be stored in plastic bottles? Or is it better to store in glass bottles?
1. 1 answer
2. 541 views
how many grams of magnesium sulfate are required to make 575 ml of a 1.65% (m/v) solution
1. 1 answer
2. 536 views
what is an example of a substance that has both ionic &covalent bonds & where are these bonds formed.
1. 1 answer
2. 434 views
what percent of 1/4 is 2/5
1. 1 answer
2. 340 views
if 5liters of hydrogen iodide gas is bubbled through 2 liters of 0.0275 M lead 2 nitrate solution at STP, how many grams of lead
1. 0 answers
2. 482 views
The points A (7,6) and B (2,1) are 3 units and 2 units respectively from the line L and are on the opposite sides of L. Find the
1. 1 answer
2. 480 views
about how many peole went through ellis island?
1. 1 answer
2. 420 views
when you bring your bicycle to a stop where does he kinetic energy it had go?
1. 2 answers
2. 393 views
compare and contrast the effect of a catalyst on a chemical reaction with that of an inhibitor?
1. 1 answer
2. 767 views
Triangle ABC has the following angle measures. Angle A = 44. Angle B = 4x. Angle C = 2x + 16. Find the measure of angle C.
1. 1 answer
2. 1,440 views
what is a veteran?
1. 2 answers
2. 319 views
A car slows down from +32 m/s to +8 m/s in 4s. Calculate the acceleration .
1. 6 answers
2. 5,439 views
23) The equilibrium constant for the gas phase reaction2NH3 (g) <-> N2 (g) + 3H2 (g) is Keq = 230 at 300 °C. At equilibrium,
1. 2 answers
2. 6,406 views
Iodine-131 has a half-life of 8 days. How many grams of a 12 g sample will remain at the end of 40 days?how do i solve this? i
1. 1 answer
2. 793 views
how do i solve the following problem?Nitrogen dioxide decomposes to nitric oxide and oxygen via the reaction: 2NO2 → 2NO + O2
1. 2 answers
2. 2,705 views
how do i solve the following problem?Nitrogen dioxide decomposes to nitric oxide and oxygen via the reaction: 2NO2 → 2NO + O2
1. 1 answer
2. 1,117 views
how do i solve the following problem?Nitrogen dioxide decomposes to nitric oxide and oxygen via the reaction: 2NO2 → 2NO + O2
1. 2 answers
2. 834 views
1.) How does reading across a periodic table compare and contrast with reading down a group on the periodic table?
1. 0 answers
2. 505 views
1.) How does reading across a periodic table compare and contrast with reading down a group on the periodic table?
1. 0 answers
2. 434 views
why does al qaeda exist?
1. 1 answer
2. 329 views
What Does Al-Qaeda actually want to achieve
1. 2 answers
2. 343 views
How do terrorist groups use the media to portray their message
1. 1 answer
2. 414 views
Find the differential dy of the given function:y=xcosx would this just be dy=(cosx-xsinx)dx
1. 2 answers
2. 1,250 views
A bucket of mass 2.20 kg is whirled in a vertical circle of radius 1.15 m. At the lowest point of its motion the tension in the
1. 1 answer
2. 931 views
A 4600 kg helicopter accelerates upward at 2.26 m/s2. 2The acceleration of gravity is 9.8 m/s . What lift force is exerted by
1. 1 answer
2. 779 views
A 4600 kg helicopter accelerates upward at 2.26 m/s2. 2The acceleration of gravity is 9.8 m/s . What lift force is exerted by
1. 1 answer
2. 552 views
why are neuclar waste products a problem?
1. 1 answer
2. 408 views
A 715 kg object is lifted from the surface of the earth to a height of 880 kg above the surface of the earth.Calculate the
1. 1 answer
2. 571 views
if i have density and the mass, how do i find the valume?
1. 2 answers
2. 363 views
convert to decimal notation8.87*10^7
1. 1 answer
2. 673 views
If you are looking at a graph of a quadratic equation, how do you determine where the solutions are?
1. 1 answer
2. 772 views
A chemist mixes some 20% acid solution with pure 100% acid to increase the concentration. How much pure acid and acid solution
1. 1 answer
2. 1,943 views
The area of a triangle is 75 sq in. Calculate the possible angles formed by the triangle's 12-inch and 15-inch side.
1. 1 answer
2. 533 views
what dose a 16 making pictures of a bomb and threating a school have in comman with world history what is the text to text to
1. 1 answer
2. 463 views
The student council is picking up litter along the highway. When they are halfway done, they have collected at least 5 bags of
1. 1 answer
2. 421 views
To determine the number of deer in a game preserve, a conservationist catches 523 deer tages them and let's them loose. Later
1. 1 answer
2. 694 views
Simply by removing factor 1p^2-36/p^2-12p+36
1. 1 answer
2. 543 views

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