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Questions (81)
y=x^2+5x+1,y=3x+25
1 answer
81 views
Simplify −5(2x−6)+25x
1 answer
226 views
what can i be with this subjects
1 answer
240 views
A baket of mass 2.5kg is shot and move with a velocity of 30ms calcute the kinetic energy of bullet
3 answers
291 views
2 C2H2(g) + 5 O2(g) 4 CO2(g) + 2 H2 (g)
How many L of CO2 gas (measured at STP) will be formed during the combustion of 50.0L
2 answers
655 views
An object has a gravitational potential energy of 24 joules when it rests on a shelf 3 m above the ground. What would be its
0 answers
255 views
An object of mass 1.5 kg rests on a shelf where it has a gravitational potential energy of 7 joules. An object of mass 4.5 kg is
1 answer
284 views
please solve w fair is partly x and partly as the square of x when x is equals to 3 w is equals 18 and when x equals to 5 w is
3 answers
248 views
3√2+5√2-10√2 is equal to
1 answer
225 views
the thickness of book varies directly with the number of pages ,a book is 1.8
2 answers
478 views
3/4 of the girls in SSS1 play basket ball and 4/7 play volleyball. Every girl plays at least one of these games. If 27 girls
3 answers
2,358 views
What was the aim of the Reign of terror
2 answers
674 views
A train moving on a circular track with a diameter of 14,642 km,takes 50 minute to complete one revolution. calculate the
1 answer
933 views
the rectangular garden of 6 metres by 4 metres is surrounded by a path of uniform width. if the area path is 56m squad, what is
2 answers
682 views
the rectangular garde of 6 metres by 4 metres is surrounded by a path of uniform width. if the area path is 56m squad, what is
1 answer
479 views
how much work is done if a force of 12N moves an object a distance of 5m
2 answers
2,956 views
Assume you are starting a new research project from scratch, you are interested in one of the following proteins and want to
0 answers
654 views
How could you write 35% as the sum of two benchmark percents or as a multiple of a percent
THIS IS 6TH GRADE MATH IT IS PRE
3 answers
655 views
Consider the cost function C(x)=x^3-3x^2+100x-10, discuss its domain
1 answer
370 views
an average of 760m, 96.2mm wide angled, height of 3 600m. what the scale of these photographs?
0 answers
432 views
an open water tank with length 20 m and width 15 m holds 4800 cubic metres of water.calculate the total surface area of the part
1 answer
536 views
Is 38/53 in simplest form? Explain why or why not. If not, write it in simplest form.
104 answers
10,339 views
Patsy has cheer leading practice every fourth day. She wants to be in the school play. but they have practice every sixth day.
1 answer
774 views
Find the centres and radii of the circles given by
A)x2+y2=6x B)x2+y2-6x+14y+49=0
1 answer
447 views
a cask containing 20 liters of wine was emptied of one-fifth of its contents and then filled with water. if this is done 20
2 answers
10,983 views
How much interest is earned on $470 at 4% for seven years?
5 answers
2,854 views
If u borrow $675 for 6years at an interest rate of %10, how much interest will u pay?
2 answers
1,480 views
I am less than 20 I am an odd number I am the square root of 225 I am
2 answers
435 views
write the number as a mixed number
11 over 2
5 answers
532 views
9 to the power of 2x+1=81 to the power of x ÷3 to the power of x
1 answer
367 views
Traditional healers should be allowed to practice and prescribe medicine in hospital and clinics
4 answers
748 views
Hello.I have a question. Do sprouts germinate? Thank you for the help. PLEASE HELP:)
1 answer
851 views
you and a flight attendant toss a ball back and forth in an airplane in flight. Does the kinetic energy of the ball depend on
1 answer
799 views
you and a flight attendant toss a ball back and forth in an airplane in flight. Does the kinetic energy of the ball depend on
2 answers
2,512 views
what are the steps in baking of cake?
1 answer
483 views
find the theoreticval value of the period of a pendulum of length 0.9 meters located on the surface of the earth.
1 answer
434 views
why cant Na be used to prepare H2?
1 answer
347 views
The following is a list of figures for a given year in billions of dollars. Using this data, compute: (a) GDP; (b) NDP; (c) NI;
1 answer
1,511 views
what is the line segement for each length 2 1/4 and 7/8 when measured with a ruler
0 answers
377 views
What happens when smog lifts in los angeles, california?
4 answers
3,184 views
penny put 5 dounts in one pack how many packs will she have in 2587
5 answers
364 views
At a certain instant a moving object comes to momentary rest. Is it accelerating at that moment?
2 answers
2,482 views
Factorize Xsquare-6x-3
1 answer
459 views
what is the vapor pressure of alcohol in 25 degree celcius? the answer should be answered in millimeter mercury.
tnx^_^
1 answer
475 views
For the following questions, use the reaction SO3(g) SO2(g) + O2(g), with ÄH = 98.4 kJ/mol and ÄS = 0.09564 kJ/(mol·K). (8
3 answers
1,663 views
Use the acid-base reaction HI + CsOH CsI + H2O to answer the following questions.
i. What is the Arrhenius acid and what is the
1 answer
2,746 views
What is the Arrhenius acid and what is the Arrhenius base in the above reaction?
0 answers
1,173 views
Use the following steps to balance the redox reaction below:
Mg + Au+ Mg2+ + Au a. Write the oxidation and reduction
3 answers
2,331 views
What makes this an oxidation-reaction? 3Ag2S+2Al(s) -> Al2S3+6 Ag(s)?
Write the half-reactions showing the oxidation and
2 answers
5,584 views
If 852.04 g Al(NO3)3 reacted with the 741.93 g Na2CO3, which would be the limiting reagent?
c. Use the limiting reagent to
1 answer
2,333 views
If 3 moles of a compound use 12 J of energy in a reaction, what is the Hreaction in kJ/mol?
A. -4 kJ/mol B. -0.004 kJ/mol C.
9 answers
8,285 views
Calculate the empirical formula of a molecule with the following percent compositions: 55.0% gallium (Ga) and 45.0% fluorine
2 answers
3,087 views
Which describes a source of radiation heat?
A. Liquid or gas circulating to move the heat B. The sun sending out electromagnetic
0 answers
549 views
What must be known for the rate constant to be calculated from the rate law?
1 answer
469 views
MnO4–(aq) + Cl–(aq) Mn2+ + Cl2(g) (unbalanced)
i. Write the reduction and oxidation half-reactions (without electrons). (.5
1 answer
1,695 views
MnO4–(aq) + Cl–(aq) Mn2+ + Cl2(g) (unbalanced)
i. Write the reduction and oxidation half-reactions (without electrons). (.5
5 answers
27,686 views
Question 1: Kinetic Theory (7 points)
a. Briefly state what the kinetic theory says. (2 points) b. Put the following molecules in
1 answer
1,436 views
A swimming-pool worker wants the pool's pH to be 7.2. She comes by to test the water and finds that the pH is 9.2. What should
13 answers
1,521 views
What is the pOH of a solution with [OH-] = 2.0 10-2?
1 answer
509 views
1. List at least three things that your body strives to keep constant. Think about what aspects of your body overall, of one
7 answers
5,766 views
What would happen to a weak base dissociation equilibrium if more products were added?
1 answer
950 views
What would happen if O2 were added to N2(g) + O2(g) 2NO(g) at equilibrium?
1 answer
752 views
A 75.0 sample of 1.50×10^−2 Na2SO4 is added to 75.0 mL of 1.26×10−2 Ca(NO3)2. What is the % Ca undissolved
1 answer
552 views
Write the standard cell notation for a galvanic cell with a silver cathode and a zinc anode.
2 answers
5,700 views
If one electrode in a galvanic cell is made of zinc (Zn) and one is made of silver (Ag), which metal would be the cathode and
2 answers
2,880 views
Think about the various processes that take place in the body or in the natural environment and come up with a list of at least
3 answers
1,804 views
a carpenter was putting up a shelf. the shelf needed to be 87 centimeters long but the piece of wood she had was 1 meter and 28
1 answer
802 views
explain how mitosis helps an organism to grow.
2 answers
854 views
HELP PLEASE...
what is the chemical equation for these situations..? a) there is a straight iron nail in the solidified gelatin
0 answers
478 views
what is the chemical equation for these situations..?
a) there is a straight iron nail in the solidified gelatin solution. the
0 answers
957 views
Determine the chloride ion concentration in a solution containing 50.0 g MgCl2 dissolved in 1500 mL of solution.
a. 0.350 M b.
2 answers
1,773 views
An aqueous solution of phosphoric acid, H3PO4, contains 285 g H3PO4 in 400 mL solution, and has a density of 1.35 g/mL.
2 answers
1,200 views
how did religion shape the development of colonial society in the Chesapeake?
1 answer
513 views
a gardner wishes to encloe a rectangular 3000 square feet area with bushes on three sides and a fence on the 4th side .If the
0 answers
461 views
what is the distance from the pitcher's box to second base if the distance from the pitcher's box to home plate is 18 meters and
1 answer
596 views
interpret an r value of -0.82. a)strong negative correlation B)weak negative correlation C)strong positive correlation D)no
1 answer
956 views
what is the kinetic energy in joules of a 1000 kg car travelling at 90km/h
2 answers
801 views
solve the equation by completing the square:
x^2-9x-2=0
1 answer
355 views
write the expression as a complex number in standard form
1+2i ----- 3-8i
2 answers
568 views
A child's development is affected most by the
A. financial status of the child's family B. social status of the child's family C.
4 answers
745 views
( x2 + 6x-3) x2-4x = (5-x)x2-4x
32x+3- 6.3x+1- 9 = 0 6log5=a and 5log4=b 4log0,24=….. Are these 4 separate questions? Convert
0 answers
575 views