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Crystal
Questions (381)
Is there a way to find the term number of a sum in an arithmetic series? Like if you had the sum of the first 12 terms in a
3 answers
694 views
Determine the sum of the first 20 terms of the arithmetic sequence in which ...
f) the 7th term is 43 and the 13th term is 109 I
2 answers
1,689 views
Okay, so I know this should be really easy but my mind is just drawing a blank:
For each series, calculate t12 and S12 a) 37 + 41
1 answer
718 views
I'm learning series and sequences (grade 11).
Please check that my steps show I understand what I'm doing/the concept and my
3 answers
864 views
solve the following inequality. write your solution in interval notation.
x^3+9x^2-108 less than or equal to 0
1 answer
478 views
the graph of y= -1/4/x-2 (1/4 over x-2) can be obtained from the graph of y=|x| by which transformations
a. what is the
0 answers
476 views
Using the function f(x)=4 - 1/(x+6)^2
A.what is the doamin? b.the range c. the asymptotes
2 answers
417 views
I can't figure out this one question...
A ship is docked in port and rises and falls with the waves. The function d(t) =
4 answers
3,013 views
If you double the concentrate of yeast in the dough how do you think your results might change ??? Please I really do need help
0 answers
1,063 views
For f(x) = 1/2sin2(x-90°)
What are the transformations? The 1/2 means a vertical compression by a factor of 1/2 And (x-90°)
1 answer
505 views
How would you write 2/3-13i in standard form?
1 answer
377 views
How would you write 2/3-13i in standard form?
1 answer
354 views
How would you write 2/3-13i in standard form?
1 answer
1,017 views
what is the pH of a 0.10 M solution of methylamine (CH3NH2, kb= 4.4*10^-4) at 25 degree C?
1 answer
988 views
what is the pH of a 0.10 M solution of methylamine (CH3NH2, kb= 4.4*10^-4) at 25 degree C?
1 answer
807 views
3) From two tracking stations A and B, 350 km apart, a UFO is sighted at C above AB making angle CAB = 32 degrees and angle CBA
10 answers
1,806 views
How does the related acute angle help to determine the trigonometric ratios of angles greater than 90 degrees? (in terms of the
9 answers
1,089 views
Use the rated acute angle to state an equivalent expression
Tan110 The answer is tan290. Why isn't it 70? Please explain
20 answers
4,028 views
The value of a car after it is purchased depreciates according to the formula v(n)=28000(0.875)^n where v(n) is the car's value
3 answers
4,052 views
Find the slope-intercept equation of the line with the following properties: parallel to the line x=-1;containing the point
1 answer
471 views
Find the slope intercept equation of the line with the following properties :parallel to the line x=-1; containing the point(
1 answer
533 views
A mixture of C3H8 and C2H2 has a mass of 2.0g . It is burned in excess O2 to form a mixture of water and carbon dioxide that
1 answer
1,173 views
In the book, "The Memory Keeper's Daughter" by Kim Edwards, after Norah has successfully destroyed the wasps' nest, Edwards
1 answer
1,003 views
How do I write ZnSo4(aq)+Na3Po4(aq)---> Zn3(Po4)2(s)+Na2S04(aq)as a net ionic equation balanced?
1 answer
2,312 views
A ferry is crossing a river. The ferry is headed
due north with a speed of 1.7 m/s relative to the water and the river’s
1 answer
7,965 views
A 0.0230 g sample of an unknown was dissolved in 2.260 g of benzene. The molality of this solution, determined by freezing point
1 answer
629 views
Calculate the solubility of oxygen in water at a partical pressure of 02 of 460 torrat 25 degree celsius
3 answers
564 views
A superhero flies 235 m from the top of a
tall building at an angle of 25 � below the horizontal. What is the horizontal
1 answer
814 views
A superhero flies 235 m from the top of a
tall building at an angle of 25 � below the horizontal. What is the horizontal
0 answers
806 views
A truck travels up a hill with a 10� incline.
The truck has a constant speed of 16 m/s. What is the horizontal component of the
1 answer
584 views
An airplane flies 340 km due east, makes a
right-angle turn, and then flies 390 km due north. Find the magnitude of the plane’s
1 answer
870 views
A pedestrian moves 5.7 kmeast and then 8 km
north. Find the magnitude of the resultant dis- placement vector. Answer in units of
0 answers
361 views
It is less than 60 and greater than 55 if you add the digits the sum is 13 what is the number
3 answers
1,689 views
1. You observe two beakers containing clear liquid and ice cubes. In the first beaker, the ice cubes are floating. In the
3 answers
1,425 views
Samantha is 1.15 m tall on her eleventh birthday and 1.32 m tall on her twelfth birthday. By what factor has her height
0 answers
448 views
Samantha is 1.15 m tall on her eleventh birthday and 1.32 m tall on her twelfth birthday. By what factor has her height
1 answer
408 views
A college offers nine different psychology courses,four different history course,thirteen different math course,and five
1 answer
621 views
If the cost of, C(x), for manufacturing x units of a certain product is given by C(x)=x2-70x+4400, find the number of units
0 answers
606 views
1. What does Quindlen call feeding babies, walking dogs, and doing household jobs?
A. difficult chores B. simple daily routines
2 answers
940 views
1. In Dust Tracks on a Road, what kind of literature did the young Hurston like best that made her think of heroic deeds?
A.
5 answers
1,123 views
The reaction (nitrogen monoxide reacts with hydrogen gas to form nitrogen gas and water vapor) is believed to take place in
0 answers
1,173 views
The reaction (nitrogen monoxide reacts with hydrogen gas to form nitrogen gas and water vapor) is believed to take place in
0 answers
1,163 views
Now the reaction (2NO+2H2==> 2H20+N2) is believed to take place in three steps, the first of which is the fast reversible
0 answers
663 views
1. Determine the exact value of cos^-1 (pi/2). Give number and explanaton.
2. Determine the exact value of tan^-1(sq. root 3).
4 answers
1,059 views
Nitrogen Monoxide reacts with hydrogen gas to form nitrogen gas and water (vapor). (i). write a balanced equation for this
2 answers
7,155 views
Draw a reaction profile (diagram of energy vs reaction coordinate) for a hypothetical reaction AB +C <=> A+BC in which the
2 answers
918 views
wht is the area of a circle with a circumference of 25 meters? I have to use pi(3.14) and round to the nearest square meter.
2 answers
1,416 views
The circumfernce of a circus ring is 13 meters. Esimate the radius of the ring.
2 answers
1,121 views
volume of a rectangular prism:600m cubed
length:30m Width:?? Hetght:4m Cant figure out the width. Please help
3 answers
554 views
Josephs tricycle tire has a diameter of 7 inches about how does Joseph travel each time his wheel goes around 5 times
1 answer
413 views
How to set up to solve the equation 2 KCLO^3 ---> 2KCL + 3O^2 HOW MANY MOLES OF O^2 CAN BE PRODUCED BY LETTING 12.00 MOLES OF
1 answer
580 views
I need some help. For a class I need to do the following:
Frame a proper research question and complete the following research
3 answers
539 views
Find the sum by making a drawing. (2+3)+(5x+1)
0 answers
329 views
(a) Using incremental analysis, determine whether SY Telc should accept this offer under each of the following independent
1 answer
603 views
An element has ccp packing with a face-centered cubic unit cell. Its density is 1770 kg/m3 and the unit cell volume is 1.50 x
1 answer
601 views
a motorboat is driven across a river at 5km/h at right angles to a current flowing at 3.9km/h. What is the resulting speed of
2 answers
2,552 views
What are the the missing reactants for the double-displacement reaction that produces PF5 and AsCl3 ?
4 answers
2,065 views
I am not sure how to even get started on this question could someone help please.
A college advisor wants to estimate the mean
1 answer
700 views
A ball on the end of a string travels in a horizontal circle at a constant speed. The circle has a circumference of 3 m, the
1 answer
1,877 views
If we examine a ball in free fall, we find that the momentum of the ball is not constant. This is not a violation of the law of
0 answers
587 views
(.050 minus 2pie over the square root of 6.18 divided by 2pie over the square root of 6.18)times 100
I think the answer is 5
2 answers
442 views
(.050-2ƒÎ/(�ã6.18))/(2ƒÎ/(�ã6.18))*100
I think the answer is 5 because everything cancels out except the .050*100 is this
2 answers
396 views
In virgina,colonists who could pay their way across the atlantic were granted 50 acres of land to lease for a modest rental
1 answer
465 views
12. A baseball player throws a ball from left field toward home plate. Assume that you can neglect the effects of air
0 answers
1,442 views
A baseball player throws a ball from left field toward home plate. Assume that you can neglect the effects of air resistance. At
0 answers
820 views
The strength of gravity on Mars is only 40% of that on earth. If a child has a mass of 30 kg on earth, what would the child's
0 answers
528 views
The supervisor comes to your office and wants to see the employee’s file. You provide the supervisor the file. The supervisor
0 answers
591 views
Find the distance between point R (5,6) and point S (-2,0). Round your answer to the nearest tenth.
1 answer
431 views
Can someone help me with how to determine the slope?
1 answer
323 views
A body, which is moving along a straight line, has an average acceleration of 6 m/s/s. How much speed does it gain, on the
1 answer
448 views
Which of the following could be units of acceleration?
A) mi/h B) m/s C) mph D) m/s/s I know acceleration is the velocity/Time so
2 answers
370 views
Paul delivers newspapers. He charges $2.25 per week for daily plus Sunday delivery, and $1.00 per week for Sunday delivery only.
5 answers
2,421 views
Describe how two Monopolistically competitive firms respond to the current macroeconomic conditions in terms of: stock
0 answers
471 views
Cl2+3F2 -> 2ClF3
how many grams of ClF3 form when .204 moles if F2 react with excess Cl2?
1 answer
1,357 views
What is a diamante poem based on art
1 answer
466 views
i cant remember how to congegate a verb...
1 answer
327 views
1) Science is the ______ of temperature
2) a ________ is used to measure temperature. 3) ice is ____ dense than water 4) adding
1 answer
1,012 views
how many calories to change 100 grams of water at 100 degrees C. to 100 grams of steam at 100 degrees C.?
2 answers
1,922 views
A) a 100 gram ice cube is at -10 degrees celcius. how many calories needed to raise it to 0 degrees C.?
B) once its at 0 degrees,
2 answers
809 views
you have 16 coins that are heads up and 18 coins that are tails up. After you add some coins that are tail up the ratio of heads
1 answer
612 views
The gravitational force between an object & the Earth is inversely proportional to the square of the distance from the object to
2 answers
1,114 views
A copper bar is initially 20 cm long at 10 degrees C. It is then heated to a temperature of 40 degrees C. What will be its new
2 answers
859 views
If you were forming a business entity and had no intent to go public (sell stock on the stock exchanges), what form would you
0 answers
410 views
VONAGE HOLDINGS CORPORATION, PETITIONER v. FEDERAL COMMUNICATIONS COMMISSION AND UNITED STATES OF AMERICA, RESPONDENTS, VERIZON
1 answer
545 views
The three main types of business organizations are partnerships, LLCs and corporations. Using the text and the comments to this
1 answer
680 views
Create an imaginary dialogue between Laotzu and a contemporary high school student in which the student asks for the
6 answers
1,009 views
Department A had 10,000 units in work in process that were 30% converted at the beginning of the period at a cost of $10,000.
0 answers
790 views
An ideal transformer is needed to step the voltage down from 400V to 115V. The primary has 400 turns. How many turns would be
1 answer
565 views
A hair dryer uses 10A at 120V. It is used with a transformer in England, where the voltage is 240V. A. What should be the ratio
2 answers
3,606 views
Physics Question Please Help?
A wire, 20.0 m long, moves at 4.0 m/s perpendicularly through a magnetic field. An EMF of 40V is
5 answers
3,876 views
Department A had 10,000 units in work in process that were 30% converted at the beginning of the period at a cost of $10,000.
1 answer
769 views
What is the method of inventory costing that assumes the unit product costs should be determined separately for each period i
0 answers
519 views
On one 100-point test, Lisa managed to get 74 points. On a separate 100-point test, Paul managed to get 74 points. But when
1 answer
654 views
If the heights within a certain subpopulation of people are normally distributed with a mean of 180 centimeters and a standard
1 answer
1,079 views
If the heights within a certain subpopulation of people are normally distributed with a mean of 180 centimeters and a standard
1 answer
1,213 views
The scores on a personality test are normally distributed with a mean of 250 and a standard deviation of 30. What proportion of
2 answers
1,326 views
If a distribution of IQ test scores has a mean of 100 and a standard deviation of 16, what would be the result if we first
1 answer
1,690 views
Consider a square of side length a = 9.4 cm with charged particles at each of the corners.Three of the particles carry +9 nC of
0 answers
665 views
A 10 amp fuse is connected in series to 4 identical 5 ohm resistors in parallel with each other. What is the maximum size
2 answers
724 views
We find an electric field of magnitude E = 1.2 x 107 V/m across a particular nerve membrane.
The potential difference between the
1 answer
528 views
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