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Calculate the concentration (in mg/L) of a solution formed by dissolving 5.000 g of solute in enough solvent to make 2.300 L of
1. 1 answer
2. 474 views
From a shipment of 350 light-bulbs, a sample of 70 was selected at random and tested. If 21 light-bulbs in the sample were found
1. 3 answers
2. 738 views
If sin T = 1/2, then the value of sinT ( sinT - cosecT ) is
1. 1 answer
2. 528 views
In a class of 110 students, 22 received the grade of A. what fraction of the students did not receive the grade A?
1. 3 answers
2. 533 views
There are 150 green marbles and 100 yellow marbles in a bag that contains 250 marbles. If only yellow marbles are added to the
1. 3 answers
2. 659 views
What are all values of x for which |2x-3| < 7 ?
1. 2 answers
2. 319 views
Sigourney Weaver's average rate going uphill was 80% of her average rate going downhill over the same route, and it took
1. 1 answer
2. 390 views
a landing airplane, moving in a straight line , passes over two points (p and q) which are 300 feet apart. when the airplane is
1. 0 answers
2. 557 views
a point on one bank he finds the angle of elevation of the top of a tree on the other bank to be 60 degress. from his initial
1. 1 answer
2. 492 views
equation of the line containing the points (4, 5) and (-1, 3)
1. 1 answer
2. 298 views
A boy drops a stone-A, down from a cliff 480 meters high, next he throws a stone-B, 1 second later - at what initial velocity
1. 1 answer
2. 1,205 views
There are 900 three-digit integers. The number of three-digit integers having at least one repeated digit is also a three-digit
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2. 1,003 views
If given 2 spheres, if the volume of the first sphere is 3/4 and the volume of the second sphere is 36, which is the relation of
1. 0 answers
2. 410 views
what are the amplitude and period of the sinusoid y=6cosx+7sinx?
1. 1 answer
2. 1,111 views
Find a vector with magnitude 1 that has the same direction as the following vector U= -3i+7j
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2. 349 views
for my last two questions, i had Krypton as the element and 56.96 grams K3PO4. i need something to compare with
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2. 344 views
A scientist wants to make a solution of potassium phosphate, K3PO4 for a lab experiment. How many grams of K3PO4 will be needed
1. 1 answer
2. 587 views
an empty container has a mass of 658.57g. It has a mass of 659.45g after it has been filled with nitrogen gas at a pressure of
1. 1 answer
2. 963 views
ethane gas, or dicarbon hexahydride, undergoes cmbustion to produce carbon dioxide gas and water vapor.A. What mass of the un
1. 1 answer
2. 597 views
2nd revision to the question, it is 7.62atm not 7.2atm, its now all correct on the question. sorry againFluorine and krypton
1. 1 answer
2. 464 views
Now the numbers in the question are correct, (Fluorine = 10.10atm Krypton = 1.24atm). Please help.Fluorine and krypton react to
1. 1 answer
2. 713 views
Find the general term:4/3, 7/7, 10/11, 13/15,...
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2. 329 views
use a sum or difference identity to find an exact valuecos pie/12
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2. 535 views
use a sum or difference identity to find an exact valuepie/12
1. 3 answers
2. 475 views
how many grams of NH3 are in 250 ml of a 20% (w/v) ammonia solution
1. 2 answers
2. 488 views
Plaes help me with this I need it as soon as possible... Thanks1.Choose one of the disorders listed below: •Tourette’s
1. 6 answers
2. 780 views
hello i need help with system of equations theres 3 only thank you2x+3y-17 3x+y=31 2(x-3y)=24 y=3x-2 2(x+4)=24 x+y=17
1. 0 answers
2. 277 views
hello i need help with system of equations theres 3 only thank you2x+3y-17 3x+y=31 2(x-3y)=24 y=3x-2 2(x+4)=24 x+y=17
1. 0 answers
2. 310 views
hello i need help with system of equations theres 3 only thank you2x+3y-17 3x+y=31 2(x-3y)=24 y=3x-2 2(x+4)=24 x+y=17
1. 0 answers
2. 375 views
If the equilibrium constant (Keq) equals 9.12x1012 for the following reaction between strontium and magnesium:Sr(s) +
1. 0 answers
2. 500 views
If the equilibrium constant (Keq) equals 9.12x1012 for the following reaction between strontium and magnesium:Sr(s) +
1. 1 answer
2. 618 views
What are some recent (a few months old would be fine) newspaper articles (found online) about molecular biology?(Eg: cloning,
1. 0 answers
2. 407 views
A 7uF capacitor is charged to a potential difference of 110V The electrical energy stoed in the capacitor is(4.2x10^-2 was the
1. 1 answer
2. 628 views
If 448 L of ethene gas are reacted with excess water at STP, how many grams of ethanol will be produced?
1. 0 answers
2. 486 views
You are a travel agent and wish to estimate, with 98% confidence, the proportion of vacationers who use an online service or the
1. 1 answer
2. 2,225 views
The shortest side of a polygon of area 196 sq. in. is 4 in. long. Find the area of a similar polygon whose shortest side is 8
1. 1 answer
2. 2,081 views
Of what percent of 320 is 180?
1. 1 answer
2. 404 views
what do we assume about volume of the actual molecules themselves in a sample of gas, compared to the bulk volume overall?why?
1. 1 answer
2. 766 views
A car is driven east for a distance of 43 km, then north for 25 km, and then in a direction 26° east of north for 26 km.
1. 1 answer
2. 620 views
how can I determine the domain of a function h(x): integrate from 0 to 2x-1 f(t)dt, when the f(x) function is a graph shown and
1. 0 answers
2. 650 views
x+5y= -33x-2y= 8 sovle using substituion
1. 1 answer
2. 1,018 views
6. In chapter 3, we discussed carrying capacities. What do you think the maximum and optimum carrying capacities for humans are?
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2. 938 views
____ 14. Adding a charged particle common to two solutes decreases solute concentration. This observationdemonstrates a. the
1. 2 answers
2. 541 views
Q; introducing organized sporttts among young children is not recommended because A.this excludes the teacher or caregiver from
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2. 499 views
Q;a plant in a classroom appears to be wilting.The children are asked to come up with as many possible explination for this as
1. 1 answer
2. 423 views
Q;Which of the following is an obstacle to learning for a beginning mover? A.knowledge of what elements of the movement to focus
1. 2 answers
2. 966 views
determine the speed of a mass (1.00kg) after it has fallen a vertical distance of 12.5 meters
1. 1 answer
2. 384 views
how much heat (in KJ) is released when 2.50 mols of NaCl is dessolved in water?
1. 0 answers
2. 464 views
Q; complete proteins can be found in A.beans,rice,and nuts B.only beef. C.citrus fruits and highly acidic vegetables D.meat,fish
1. 1 answer
2. 474 views
Q; fats should not account more than____percent of total daily calories A. 10 B.30 C.50 D.75my answer is B Ms.Sue is that corect
1. 1 answer
2. 415 views
Q; at the sensorimotor level of cognitive development,a child A.canmove her arms,legs,and head,but can't move her body over
1. 1 answer
2. 415 views
Q; children should be physically active______adults. A.less than B. more then C.twice as much as D.the same amount asmy answer
1. 3 answers
2. 432 views
Q; a child practices tossing a ball into a hoop from the same distance each day. What type of knowledge is he using? A.adaptive
1. 3 answers
2. 426 views
Q; What are the three main factors in a readiness model? A.maturation,learning,and motivation B.height,weight,and age
1. 2 answers
2. 923 views
Q; neuron development and elaboration,which occurs between birth and age 10,is prompted by A.aural prompts from the
1. 1 answer
2. 466 views
Q; ____have more than twice as many of calories as do proteins or carbohydrates A.fats B.salty foods C.solubles D.alkaloidsmy
1. 1 answer
2. 456 views
Q; a main source of fat and saturated fatty acids in children's diets isA.meat B.candy C.whole milk D .french fries My answer D
1. 1 answer
2. 653 views
Q; alcohol,drugs,radiation,and pollutants that affect a child's development are called A. teratogens B.toxic inhibitors
1. 2 answers
2. 1,011 views
Q; the interaction between a child's biological makeup and the enviromental influences that affect his or her development and
1. 1 answer
2. 590 views
Q; growth,maturation,and learning are all used interchangeably with the term A.development B.maintenance C.exposure D.regression
1. 1 answer
2. 1,047 views
Q; the main goal of effective health education programs for young children is to A. provide children with the knoweledge to eat
1. 3 answers
2. 590 views
Q; a strategy for health promotion among infants,toddlers,and young children focuses on educational programs, psysical
1. 1 answer
2. 553 views
Q; as a day care worker,you should be familiar with the development of children. Which one of the following items is a
1. 2 answers
2. 474 views
Q; the introduction of semisolid foods to a five-month-old infant may be delayed if A.the infant has bottle mouth syndrome
1. 1 answer
2. 532 views
The children in your class are working on an art project that requires them to use a standard hair dryer to produce a particular
1. 1 answer
2. 546 views
Q;Four-year-old Jacob comes from a family in which hypertension is common.It's probable that Jacob will need a diet that's low
1. 4 answers
2. 525 views
Q; A child in your program has just returned after having chickenpox.You notice that she still has a few dry scabs.What should
1. 1 answer
2. 357 views
Q; Which one of the following conditions may result in dehydration?A.diaper rush B.diarrhea C.apnea D.hyperventilation My answer
1. 1 answer
2. 414 views
computer,impolite,control,include,immigrant,compete,consumer,involve,immediate,comment,infection,concert,import,conversation,com
1. 2 answers
2. 374 views
how do you simplify this expression8p-p-4p
1. 4 answers
2. 499 views
algerbra how do you simplify this equation b*4*a
1. 1 answer
2. 324 views
LEt f and g be continous functions with the following propertiesi. g(x) = A-f(x) where A is a constant ii. for the integral of 1
1. 0 answers
2. 652 views
Q; children usually behave in acceptable ways when they A.know the rules B.fell good about themselves C.are scolded for
1. 3 answers
2. 432 views
Q; Bruno has been asked to list all of the use for a paper clip.This is an example of A;convergent thinking B;scaffolding
1. 1 answer
2. 533 views
Q; Melissa plays with the same four girls every day. She has a lot of energy,is independent,and is concerned about what her
1. 3 answers
2. 648 views
Q;one of the most important functions of a child's peer group is A.serving as a replacement for the parents B. providing
1. 1 answer
2. 479 views
balanced chemical equation for m(s) + n^(x+) (aq) ---> M^(y+)(aq) + N(s)
1. 0 answers
2. 426 views
What are the effects of new media technologies on youth culture?Can you give me some example where it has been good and where it
1. 0 answers
2. 629 views
How fast can a Farrari FXX go?
1. 1 answer
2. 363 views
How fast can a Farrari FXX go?
1. 1 answer
2. 316 views
design a car for astronauts to drve in outer space
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2. 836 views
g(x) = -2/(4x+5)
1. 1 answer
2. 267 views
12x+20y+15z=-60
1. 2 answers
2. 493 views
Using exact values,find the value of:(A=30degrees) sin 2A + tan 3A/2 - cos A + sec(A+15), when A= 30degrees There were no
1. 4 answers
2. 581 views
this is exactly how the question is written and i tried to solve it but i just couldn't. Can u please show me how the work was
1. 3 answers
2. 838 views
how can i fine the volume of 17cm 13cm 10cm
1. 2 answers
2. 513 views
2H2(g) + O2(g) = 2H2O (l)Calculate the volume of Hydrogen gas at STP required to produce an amount of energy equivalent to that
1. 3 answers
2. 847 views
AgNO3 + NaCl produces AgCl + NaNo3 how much AgCl is produced when 3.10g of AgNO3 and .600g of NaCl react?
1. 3 answers
2. 2,798 views
if james spends 5/6 of his weekly allowance seeing a movie he has how much of his allowance left
1. 7 answers
2. 292 views
1,680 kilobytes in 4 minutes..........how do u get it....... lesson 6-2 ......rates....6th grade pg. 289 ......#2
1. 1 answer
2. 408 views
.....rates....6th garde.....lesson6-25pounds for $2.49
1. 1 answer
2. 325 views
about how many skittlesium nuclei would remain after three half lives if the intial sample had 500 skittles?
1. 0 answers
2. 400 views
rachel is ranked 72 out of 451 students. whats her class rank percentile?
1. 1 answer
2. 660 views
two nombers have a sum of 15. one of the numbers is x. Find an expression for the other number
1. 2 answers
2. 372 views
The distance from B to D is approximately (x+10) feet, and the distance from A to C is approcimately (2x-5.3) feet. what is the
1. 0 answers
2. 1,188 views
MNPQ is a rhombus. The measure of angle MRQ is (13t-1) degrees, and the measure of angle PQR is (7t+4) degrees. what is the
1. 3 answers
2. 1,301 views
The scissor lift forms rhombus PQRS with PQ= (7b-5) meters and QR= (2b-0.5) meters. IF S is the midpoint of Line RT, what is the
1. 0 answers
2. 569 views
A square graphed on the coordinate plane has a diagonal with endpoints E (2,3) and F (0,-3) what are the coordinates of the
1. 0 answers
2. 1,301 views
A square graphed on the coordinate plane has a diagonal with endpoints E (2,3) and F (0,-3) what are the coordinates of the
1. 2 answers
2. 1,468 views
The scissor lift forms rhombus PQRS with PQ= (7b-5) meters and QR= (2b-0.5) meters. IF S is the midpoint of Line RT, what is the
1. 1 answer
2. 770 views

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