Questions LLC
Login
or
Sign Up
Ask a New Question
Kelly
Questions and answers by
Kelly
, page 6
Questions (805)
Find the solutions of the exponential equation
e^2x–4e^x+3=0 x1=? x2=?
4 answers
409 views
A 11.0-g bullet is fired horizontally into a 101-g wooden block that is initially at rest on a frictionless horizontal surface
2 answers
960 views
Iron (III) hydroxide is soluble in acid:
Fe(OH)3(s)3H^+(aq)-->Fe^3^+(aq)+3H2O(l) a. How many milliliters of 1.00 M HCl are needed
3 answers
1,408 views
three bugs that are connected by a mass less spider silk are pulled along a frictionless table top. The first bug has a mass of
4 answers
1,101 views
a mouse pushes a piece of cheese with a mass of 6.4 g for a distance of 75 cm over the frictionless surface of an air hockey
4 answers
2,239 views
A food snack manu. samples 15 bags of pretzels off the assembly line and weighed their contents. If the sample mean is 10.0 and
2 answers
1,106 views
At a large dept. store, the avg. number of years of employment for a cashier is 5.7 with a standard deviation of 1.8 years. If
3 answers
868 views
(parent). My son's problem says "the product of a number and 17"...supposed to write as expression... I'm thinking it would be a
4 answers
526 views
If a road passes through R(4,-11) and S (0, -9) and another road passes through J (6,-2) and K(4, -5) and are straight lines,
1 answer
315 views
A 12-foot ladder reaches 9 ft 6 in up a wall. How far up would a 20-foot ladder reach when placed at the same angle? Write the
3 answers
466 views
What are the adverb(s) in the following sentence
The teacher seemed unusually cheerful. Is it unusually and cheerful?
6 answers
568 views
At 400°C the reaction H2+I2<->2HI has an equilibrium constant Kp value of 55.5. A mixture of 1 mole of H2 and 1 mole of I2 is
7 answers
792 views
If calcium carbide has a standard enthalpy of formation of -59.8 kJ/mol and acetylene has a standard enthalpy of formation of
3 answers
2,111 views
F(x) = 2√(1 + tanx)
f'(x) 2√ = x^(1/2)
1 answer
305 views
Find the change in the force of gravity between two planets when their masses remain the same but the distance between them is
3 answers
1,333 views
If f(3) =4 g(3)=2 f'(3)=6 and g'(3)=5
find the following numbers a) (fg)' (3) b) (f/g)' (3)
3 answers
305 views
You notice that your accounts receivable days outstanding has doubled in the first 6 months. Do you give someone a bonus or put
1 answer
400 views
For the reaction:
2HCl + Na2CO3→ 2NaCl + H2O + CO2 how much CO2 is produced at STP if 18.5 L of 1.15 M Na2CO3is used? The molar
5 answers
1,972 views
A stuntman is being pulled along a rough road at a constant velocity by a cable attached to a moving truck. The cable is
4 answers
3,460 views
A rescue helicopter is lifting a man (weight = 797 N) from a capsized boat by means of a cable and harness. (a) What is the
1 answer
504 views
A man seeking to set a world record wants to tow a 122000-kg airplane along a runway by pulling horizontally on a cable attached
1 answer
512 views
Find an equation of the tangent line to the curve at the given point.
y^2=x^3 (2-x) (1,1)
1 answer
281 views
if kelly gave 1/3 of a pizza to holly and 1/5 to diane how much did she have left
5 answers
1,048 views
describe the lifestyle behaviour of the youth who abuse illegal and legal drugs and discuss how this lifestyle behaviour impacts
1 answer
473 views
describe the lifestyle behaviour of the youth who abuse illegal and legal drugs and discuss how this lifestyle behaviour impacts
5 answers
1,016 views
How many grams of NaCl must be added to 225.0 g
of H2O at 45 °C to lower the vapor pressure of water by 2.21 mmHg? The vapor
2 answers
555 views
a) The average height of sunflowers in a field is 64 inches with a standard deviation of 3.5 inches. Describe a normal curve for
4 answers
1,254 views
The density of ethanol is 0.789 g/cm3 at 20 degrees celsius. What is the mass of 150cm3 of this alcohol?
2 answers
837 views
Suppose oil spills from a ruptured tanker and spreads in a circular pattern. If the radius of the oil spill increases at a
4 answers
7,354 views
A hydrogen atom, when vigorously perturbed, can emit light with a frequency of 6.16·1014 Hz. When the same light from hydrogen
1 answer
753 views
A student in a parked car honks the horn, which has a `proper' frequency of 320 Hz. An observer in an approaching vehicle
3 answers
1,547 views
Personality disorders are thought to originate during childhood but many health professionals are reluctant to diagnose
4 answers
737 views
Choose the correct form for each phrase.
1. the budget for this month this months budget this month's budget this months' budget
7 answers
asked by
Kelly
2,893 views
the reaction of 6.62g of carbon with excess oxygen yields 13.40g of CO2. what is the percent yield of this reaction
2 answers
946 views
a .6800g sample of carboxylic acid is burned in oxygen, producing 1.212 g of CO2 and .4991 g of H2O. determine the empirical
3 answers
1,446 views
How many grams of phosgenite can be obtained from 10.0 g of PbO and 10.0 g of NaCl in the presence of excess water and carbon
1 answer
1,244 views
I need help with two math problems.
1. A triangle has vertices (1, 4), (1, 1), and (-3, 1). The triangle is dilated by a scale
4 answers
1,891 views
In Example 2, find the percent of the total and the number of degrees in each sector for mountains, theme parks, relatives, and
2 answers
539 views
If a 5.0L volume of O2 (g) is at 1.0 atm, if we hold the temperature and molar amount of O2 constant how many psi of pressure
1 answer
354 views
If a 5.0L volume of O2 (g) is at 1.0 atm, if we hold the temperature and molar amount of O2 constant how many psi of pressure
1 answer
300 views
What is HO HO C6 H6 CH2 CH NH2?
1 answer
401 views
A city council candidate asks his campaign staff to gather some polling data. they survey a sample of voters to determine
6 answers
500 views
How many meters underwater is 3.128 atm?
1 answer
276 views
A homeowner empties her hot water heater every 36 days and changes the filter in the heat pump every 48 days. She did both on
2 answers
1,096 views
I am thinking of some #s less than 100. When I divide them by 2 there is a remainder of 1. When I divide them by 3 there is a
3 answers
587 views
24five
x 3five ------ 132five 27eight 65eight +43eight ------- 157eight 75eight -37eight ------- 36eight 1213five/3five??? -If
3 answers
493 views
What mass of a 0.66 molality ammonium nitrate (80.04g/mol) solution will contain 0.15 mol of solute?
4 answers
1,686 views
Gasoline is primarily a mixture of hydrocarbons and is sold with an octane rating that is based on a comparison with the
4 answers
3,792 views
Calculate the freezing point of an aqueous solution formed by dissolbing 4.22 g of KCl in 25.00 mL of water. Kf for water is
1 answer
447 views
Calculate the molar mass of an unknown molecular compound mixed with solid camphor C10H16O, heated and then cooled giving the
2 answers
536 views
Calculate the molar mass of an unknown molecular compound mixed with solid camphor C10H16O, heated and then cooled giving the
2 answers
1,042 views
In the aftermath of the 9/11/2001 terrorist attacks on America, and the resulting War on Terrorism by the United States, what do
1 answer
373 views
Predict the proper equilibrium constant expression for the following reaction...
Fe(OH)3(s) ----> Fe3+(aq) + 3 OH-(aq) Explain
3 answers
692 views
according to lechateliers principle, would increasing the starting concentration of Ca2+ increase or decrease the amount of
3 answers
633 views
If a 0.10 M solution of an acid has a pH of 4.5, what would be the predicted pH of a .10 M solution of the conjugate, and why?
1 answer
352 views
Acetic acid has a Ka = 1.75 x 10-5 and formic acid has a Ka = 1.8 x 10-4. Which is the stronger acid?
2 answers
889 views
In a concentration cell, what would be the potential if we studied two solutions that had the same concentration?
1 answer
299 views
The region bounded by y=-x^2+14-45 and y=0 is rotated about the y-axis, find the volume.
4 answers
3,138 views
Rod and John ride their bikes in opposite directions. Rod ride 5 miles an hour faster than john. After 2 hours, they are 70
3 answers
354 views
Steve mcspoke left home on his bike traveling at 18km/hr. Steve's brother set out 2 hours later , following the same route,
2 answers
946 views
The left-hand cable has a tension T1 and makes an angle of 50 degree with the horizontal. The right-hand cable has a tension T3
4 answers
751 views
What are some examples of an agonist?
1 answer
333 views
A discount store marks up the merchandise it sells by 55%. If the wholesale price of a particular item is $25, what should the
3 answers
559 views
An astronaut wearing a 20-kg spacesuit jumps on the moon with an initial velocity of 16 m/s. On the moon, the acceleration due
2 answers
574 views
An astronaut wearing a 20-kg spacesuit jumps on the moon with an initial velocity of 16 m/s. On the moon, the acceleration due
2 answers
1,017 views
Let A(t) be the (changing) area of a circle with radius r(t), in feet, at any time t in min.
If the radius is changing at the
2 answers
856 views
A boat is pulled into a dock by a rope attached to the bow (front end) of the boat and passing through a pulley on the dock that
2 answers
722 views
A filter filled with liquid is in the shape of a vertex-down cone with a height of 12 inches and a diameter of 18 inches at its
5 answers
4,593 views
You are blowing air into a spherical balloon at a rate of 7 cubic inches per second. The goal of this problem is to answer the
4 answers
1,949 views
Which pronoun?
That is the month many of the classes put on its, their own plays. Easpch of the classes chooses the play they, it
6 answers
376 views
I need help please
Complete the sentences with the correct forms of conseguir, ir, pensar, querer, or suponer. Nosotros _______
2 answers
1,065 views
I would just like someone to check my work and make sure I am doing it correctly before I continue.
f(x)=x^2-3x+5 1. f(2) I got
3 answers
416 views
When you inhale, where is there more oxygen, in the lungs or body.
1 answer
308 views
In the sentence
They are not nuts. They is the subject Are is the verb What is the predicate word?
4 answers
341 views
Which words go in the following sentences.
Young Charles was born in 1902 and was growing/grew up on a farm. Later, although he
5 answers
426 views
Which word fits these sentences?
A Persian rug with beautiful patterns lay/laid on the floor. I think lay for present tense? The
1 answer
397 views
Which word fits these sentences?
A Persian rug with beautiful patterns lay/laid on the floor. I think lay for present tense? The
4 answers
467 views
Which word fits these sentences?
A Persian rug with beautiful patterns lay/laid on the floor. I think lay for present tense? The
1 answer
460 views
Sketch the region enclosed by the given curves. Decide whether to integrate with respect to x or y. Then find the area of the
3 answers
569 views
Evaluate the definite integral:
sqrt(8-2x) lower limit=-7 upper limit=0 I got -(1/3)(8-2x)^(3/2) and it was wrong. Please Help!
1 answer
494 views
Consider the area between the graphs x+6y=8 and x+8=y2. This area can be computed in two different ways using integrals
First of
3 answers
3,058 views
Two competing corporations are submitting data to the US Military to create chemical hot packs. The Military has stipulated that
5 answers
2,916 views
What are the adjectives in this sentence?
Many families headed for a favorite beach last week during the hot weather. Many, a,
3 answers
550 views
Water rose almost to the top of the dam.
Is the a predicate adjective?
6 answers
424 views
In a closed room with an electric system controlled by a thermostat, would hanging a load of laundry to dry in that room require
2 answers
569 views
Suppose a student titrates a 10.00-mL aliquot of saturated Ca(OH)2 solution to the equivalence point with 13.65 mL of 0.0234 M
3 answers
1,478 views
Which verb should I use and why?
Either the wild dogs or the baboon makes or make that howling sound. I think since dogs is
3 answers
450 views
Can you check these?
Neither the tourists nor their guide has/have time to photograph the gazelle? I think has because guide is
1 answer
459 views
Pilar picked 12 apples.she gave 1/4 to Dwayne 1/4 tot Murphy and 1/4 to Kelley .how many apples did each get
2 answers
462 views
Which of the following is true of the Industrial Workers of the World (I.W.W.)?
A. It was founded in Russia. B. It made business
2 answers
586 views
Is the comma in the right place below?
Did you know, Dad, that the the colonists broke all the treaties signed by Philip and his
1 answer
430 views
Acetylene(C2H2) torches are used in welding.
How much heat (in kJ) evolves when 2.0L of C2H2 (d=1.0967kg/m3) is mixed with a
4 answers
2,578 views
A 3.0g sample of NaCl is added to a Styrofoam cup of water, and the change in water temperature is 6.5∘C . The heat of
3 answers
1,179 views
you are considering starting a walk in clinic. Your financial projections are as follows: revenues $400,000, wages and benefits
1 answer
716 views
I post a question earlier- confused as to when taxes are assumed. Am I heading in the right direction when I say after profit-
1 answer
353 views
y+7x+8
1 answer
359 views
The height of a projectile fired upward is given by the formula s = v0t – 16t2, where s is the height, v0 is the initial
4 answers
4,384 views
An event in the Summer Olympics is 10-meter springboard diving. In this event, the height s, in meters, of a diver above the
2 answers
623 views
The Weight of a small Starbucks coffee is normally distributed random variable with a mean of 360 grams and a standard deviation
4 answers
3,351 views
Find the standard normal area for each of the following, showing your reasoning clearly.
a. P(1.22<z<2.15) b. P(2.00<z<3.00) c.
4 answers
2,534 views
Pages
1
2
3
4
5
6
7
8
9