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a student measures the height of a sign to be 2 meters. the shadow of the sign 3 meters. the student notices that at the same
1. 1 answer
2. 631 views
Create sketches by hand of the following sine functions, showing at least one full period and state the domain and range. Submit
1. 0 answers
2. 624 views
the marks of 100 students in an examination are normally distributed with mean of 25 marks and a standard deviation of 10 marks.
1. 1 answer
2. 760 views
16oz of nails is to be made of a combination of nails one that costs four dollars per oz and another that costs eight dollars
1. 1 answer
2. 536 views
A laser beam passes from air into a 25% glucose solution at an incident angle of 37 ∘ . In what direction does light travel in
1. 1 answer
2. 2,419 views
in a science class,65 student study physics while 40 study chemistry.if there are 93 student in the class,how many student study
1. 2 answers
2. 494 views
Calculate the change in pH when 9.00 mL of 0.100 M HCl(aq) is added to 100.0 mL of a buffer solution that is 0.100 M in NH3(aq)
1. 1 answer
2. 4,509 views
Does the table represent an exponential function?x | 1 | 2 | 3 | 4 y | -2 | -12 | -72 | -432
1. 2 answers
2. 1,270 views
find the area of each circle to the nearest tenth with diameter of 8ft.
1. 1 answer
2. 562 views
To convert from a smaller unit to a larger unit you divide or multiply or add by 10?
1. 2 answers
2. 1,190 views
Write the chemical equation that oxidize oxalic acid to carbon dioxide and water
1. 1 answer
2. 543 views
Carbon dioxide gas has a Henry's law constant of 4.48×10-5 M/mmHg at 25.0 °C when dissolving in water. If the total pressure
1. 1 answer
2. 1,650 views
20 kids Are in a group . 7 of them have pets. How do u figure what percent of the group has pets? I multiplied 7 X 20 and got 14
1. 1 answer
2. 501 views
an object takes 0.35 seconds to hit the floor, what height did it fall from?is the way to calculate it h = gt^2 / 2 so would it
1. 1 answer
2. 498 views
A rectangular picture frame measures 46 cm by 35 cm. What is the perimeter or distance around the picture frame in meters?m
1. 2 answers
2. 563 views
Existential psychology has four basic themes. Define the themes. How are those themes different from humanistic theory themes of
1. 1 answer
2. 726 views
What doea,the c mean when the math problem is 8c = how many pints? I tried 1 2 4 and 16 but don't know what to look for.
1. 2 answers
2. 822 views
What is the solution of the system?y = -3x 3x + 2y =6 I don't get this, please help.
1. 5 answers
2. 1,528 views
Tow masses are moving down a slope. One mass is traveling twice as fast as the other mass. How does the kinetic energy of one
1. 8 answers
2. 2,822 views
How to figure out 22×11 in expanded algorithm
1. 1 answer
2. 453 views
what point of f(x)= e^(1-x^2) is concave down? I think it is -3/2
1. 1 answer
2. 379 views
I have researched for an hr. Can someone help me find what energy transformation takes place when a firecraxker explodes? The
1. 1 answer
2. 684 views
An athlete swings a 3.06 kg ball horizontallyon the end of a rope. The ball moves in a circle of radius 0.82 m at an angular
1. 0 answers
2. 652 views
write an equation that I can use to find the distance I can drive on any number of gallons of gas
1. 1 answer
2. 398 views
Calculate the mass of oxalic acid needed to prepare 150 ml of 0.442 M C2H2O4
1. 2 answers
2. 686 views
Some nucleus of 74X189 (atomic mass = 188.96191 u) undergoes - decay to become 75X189 (atomic mass = 188.95922 u). What is the
1. 0 answers
2. 566 views
The number of radioactive nuclei present at the start of an experiment is 3.27 x 1015. The number present twenty days later is
1. 0 answers
2. 621 views
What is the radius of a real or imaginary nucleus of 46X100do I use the formula R = R_o * A^(1/3) and therefore (1.3*10^-15)*
1. 0 answers
2. 468 views
The refractive indices of materials A and B have a ratio of nA/nB = 1.68. The speed of light in material A is 1.26 x 108 m/s.
1. 2 answers
2. 937 views
An object is located 27.6 cm to the left of a converging lens whose focal length is 46.5 cm. (a) Determine the image distance
1. 0 answers
2. 463 views
A mirror produces an image that is located 28.0 cm behind themirror, when the object is located 9.90 cm in front of the mirror.
1. 0 answers
2. 660 views
An object that is 31 cm in front of a convex mirror has an image located 16 cm behind the mirror. How far behind the mirror is
1. 1 answer
2. 622 views
A container holds 1.9 mol of gas. The total average kinetic energy of the gas molecules in the container is equal to the kinetic
1. 0 answers
2. 807 views
Identical +2.83 μC charges are fixed to adjacent corners of a square. What charge (magnitude and algebraic sign) should be
1. 0 answers
2. 674 views
if it takes 8 men 3 hours to clean a house, how many men would it take to get job done in 2.5 hours
1. 1 answer
2. 552 views
A container holds 1.9 mol of gas. The total average kinetic energy of the gas molecules in the container is equal to the kinetic
1. 0 answers
2. 784 views
When the movie is half over, popcorn sells for half price. Full price popcorn is $3.50, and drinks are $1.35. Determine the cost
1. 14 answers
2. 3,287 views
phsophorous trichloride and phosphorous pentachloride equilibrate in the presence of molecular chlorine according toPCl3 (g)
1. 0 answers
2. 1,087 views
phsophorous trichloride and phosphorous pentachloride equilibrate in the presence of molecular chlorine according toPCl3 (g)
1. 1 answer
2. 2,430 views
A loaf of bread is removed from an oven at 350 degrees F and cooled in a room whose temperature is 70 degrees F. If the bread
1. 1 answer
2. 3,013 views
I need explanation to this question.solve 48 base12 multiply by 15 base12.i can solve it by first converting to base ten and
1. 4 answers
2. 2,316 views
write a pascal program which reads price of an item. the program should compute 25% discount on the original price, it should
1. 0 answers
2. 857 views
A quarterback takes the ball from the lineof scrimmage, runs backward for 18.0 yards, then runs sideways parallel to the line of
1. 1 answer
2. 804 views
Vector B~ has x, y, and z components of 9.6, 6,and 8.5 units, respectively. Calculate the magnitude of B~ .
1. 1 answer
2. 584 views
A descent vehicle landing on the moon hasa vertical velocity toward the surface of the moon of 34.1 m/s. At the same time, it
1. 1 answer
2. 697 views
Bob heads out into a lake at an angle of 27◦with respect to the shore. If his boat is capable of a speed of 1.3 m/s, how far
1. 1 answer
2. 719 views
As soon as a traffic light turns green, a car speeds up from rest to 50.0 mi/h with constant acceleration 7.50 mi/h-s. In the
1. 1 answer
2. 644 views
A 4000 kg trailer is towed up a hill with a 5% grade. If the towing truck starts from rest at the bottom of the hill and reaches
1. 1 answer
2. 637 views
A house plan shows a scale of 1:25. If the rectangular lounge room of the house is to measure 4 metres by 6 metres, what will
1. 1 answer
2. 592 views
edgar earns 200 dollars a week plus a 15% commission on all sales over 1,000 dollars.if edgar sells for one week or 2,500
1. 4 answers
2. 620 views
a certain alloy contains 5.25% cooper. how much cooper is there in a piece weighing 200 pounds.
1. 1 answer
2. 501 views
paul can type 60 words per minute and jenifer can type 80 words per minute how does pauls typing speed compare to jenifers
1. 1 answer
2. 824 views
A model rocket blasts off from the ground, rising straight upward with a constant acceleration that has a magnitude of 87.9 m/s2
1. 1 answer
2. 599 views
We're supposed to try and figure out the structure of a compound based off the the following information:δ: 2.4 2H triplet δ:
1. 0 answers
2. 543 views
What is the magnitude of the average acceleration of a skier who, starting from rest, reaches a speed of 10.5 m/s when going
1. 1 answer
2. 475 views
A hot-air balloon is rising upward with a constant speed of 3.29 m/s. When the balloon is 3.38 m above the ground, the
1. 1 answer
2. 531 views
Solve for x:2^x=x^2
1. 1 answer
2. 312 views
Water is taken from a well 11m deep in a bucket,the rope winding up to a drum 35cm in diameter.A)Through what angle does the
1. 8 answers
2. 2,902 views
6cm diameter discs are cut from a sheet 130cm long and 70cm wide.(a)How many discs can be cut in this way (b) what area of the
1. 7 answers
2. 2,753 views
Three consecutive terms of a Geometric Progression are − 6, p and − 32 . find the value of p.
1. 1 answer
2. 558 views
Given: 3(x-2y)+3x=y-2(x+4y), find the ratio of y to x
1. 1 answer
2. 359 views
The alleles for brown eyes (B) are dominant, while those for blue eyes (b) are recessive. If Lesley’s mother has the genotype
1. 2 answers
2. 1,982 views
50.0 mL of an unknown HCl solution was titrated with 0.449 M NaOH. To reach the equivalence point, 38.4 mL of the NaOH was used.
1. 2 answers
2. 1,353 views
A cube with length 4cm is divided into 8 identical cubes.How much greater is the combined surface area of the 8 smaller cubes
1. 1 answer
2. 647 views
A rectangle measuring 7cm by 4cm is enlarged by a ratio of 2:1.what is the area of the enlarged rectangle.
1. 3 answers
2. 1,846 views
Calculate the energy of a photon of green light with a frequency of 5.96 ✕ 10^14 s−1I keep getting 3.88e-21, but the quiz
1. 1 answer
2. 630 views
On January 1, 2012, the organizers of the Parsons Corporation obtained their charter and issued 10,000 shares of $1 par common
1. 0 answers
2. 833 views
A jet plane lands in an airport with a speed of 125 m/s and can accelerate uniformly at a maximum rate of -9.8 m/s2 as it comes
1. 1 answer
2. 642 views
1. A 4.61 g sample of one of the substances listed in the table below was heated from 21.3°C to 315.7°C, requiring 190 J to do
1. 1 answer
2. 599 views
From an apartment window 24 m above the ground, the angle of depression of the base of a nearby building is 38 degrees and the
1. 4 answers
2. 2,883 views
Traveling downstream a certain boat went 21 mph. Traveling upstream it went only 5 mph. Find the speed of the boat in still
1. 4 answers
2. 2,125 views
the huguenots were
1. 1 answer
2. 357 views
The 3rd term of a geometric progression is nine times the 1st term.if the 2nd term is one twenty fourth the 5th term.find the
1. 3 answers
2. 925 views
the 3rd term of a geometric progression is nine times the 1st term.if the 2nd term is one-twenty fourth the 5th term.find the
1. 1 answer
2. 885 views
The 3rd term of a geometric progression is nine times the first term.if the second term is one-twenty fourth the 5th term.find
1. 2 answers
2. 2,755 views
The third term of a geometric progressiom is nine times the first term.if the second term is one-twenty fourth the fifth
1. 1 answer
2. 922 views
A 2000kg car traveling at a speed of 27m/s skids to a halt on wet concrete where μk = 0.20.
1. 1 answer
2. 1,950 views
a 10 year coupon bond that yield 5% is issued with a 1000 par value. what is the issuance price of the bond
1. 0 answers
2. 593 views
Calculate the total pressure in the flask after all of the oxygen has been removed from the air in the flask. Assume that the
1. 1 answer
2. 847 views
The table labeled “Brooklyn Precinct Activity Measures” shows counts of different indicators from the June 1999 Compstat
1. 1 answer
2. 498 views
what is algerdra
1. 1 answer
2. 332 views
a 700 newton man is able to climb up 4.5 meters on a 6 meters ladder before it slips. What must be the coefficient of friction
1. 0 answers
2. 511 views
an object weighing 40 tons hits an object at 40 MPH what is the force of the impact?
1. 1 answer
2. 446 views
If bacterium divides every 20 minutes. How many will there be in a day?
1. 1 answer
2. 524 views
1. simplify x^2+x-6/x^2-4 divided by x+3/2x+4
1. 1 answer
2. 379 views
Write the quadratic function whose zeros are:1. 2+square root of 5, 2-square root of 5 2. 3+7i,3-7i 3. 5±i Please tell me how
1. 1 answer
2. 503 views
The White House has been home to many animals as well as presidents.(1 point) common noun proper noun compound noun collective
1. 6 answers
2. 3,004 views
A ship at sea is due into a port 600 km due south in two days. However, a severe storm comes in and blows it 200 km due east
1. 2 answers
2. 1,393 views
A bag contains 8 red, 12 white and 4 blue marbles. If 2 marbles are selected in succession (without replacement), find the
1. 2 answers
2. 2,376 views
A 52.3 kg sample of ethanol is needed for a reaction. What volume in liters of ethanol should be used? The density of ethanol is
1. 1 answer
2. 1,232 views
According to the MIT Airline Data Project, American Airlines controlled 15.5% of the domestic market in 2010. A random sample of
1. 2 answers
2. 1,589 views
With unfunded mandates, the national government?
1. 1 answer
2. 428 views
Nullification would have had the effect of returning the nation to the Article of Confederation because?
1. 1 answer
2. 465 views
The federal system can be thought of as a marble cake because?
1. 1 answer
2. 402 views
What is a project stakeholder? What are some examples of project stakeholders?
1. 1 answer
2. 428 views
What volume of ethanol must be diluted withwater to prepare 315 mL of 0.620 M solution? The density of ethanol is given as 0.789
1. 1 answer
2. 585 views
Find the circumference of the given circle. Round to the nearest tenth.circle (1 point) 22.0 cm 38.5 cm 11.0 cm 42.8 cm
1. 4 answers
2. 2,072 views
If Ѳ is in Quadrant II, and cos Ѳ=-3/4 , find an exact value for sin 2Ѳ.
1. 2 answers
2. 1,531 views
write in expanded logarithmic form:ln (x y^3 z^7)
1. 1 answer
2. 496 views
Solve: log x + log(x+15)=2
1. 1 answer
2. 436 views

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