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Grace
Questions and answers by
Grace
, page 2
Questions (498)
An ellipse has this Cartesian equation:
((x-2)/5)^2 + ((y-4)/3)^2 = 1 Find the focal radius Find the eccentricity Write the
2 answers
535 views
the chef at a restaurant bought 37 pounds of salad for $46.25. how much did she pay for 1 pound of salad
6 answers
1,686 views
Given
h(r) = 1/(r + 2), find: h(x^2) + 1 Thank You
1 answer
245 views
There are 24 students in Mrs.Smith's 1st block class. 1/4 of the class passed the math test with an A. 12 students in the class
4 answers
1,541 views
There are 24 students in Mrs.Smith's 1st block class. 1/4 of the class passed the math test with an A. 12 students in the class
2 answers
536 views
Simon went to the store to buy new school supplies. Simon spent 1/4 of his money on pencils and paper and 1/2 of his money on a
3 answers
268 views
How would one plug the gravitational constant into an equation? To be honest, I'm having a hard time with the idea of the
1 answer
379 views
The pH of a 0.100 M solution of an aqueous weak acid (HA) is 4.00. What would the Ka for the weak acid be?
1 answer
392 views
Are hybridized orbitals used to explain the fact that the four bonds in methane are equivalent? If not, what is?
2 answers
566 views
How do you simplify products of radicals? Please help!
1 answer
333 views
Please may you find a labeled diagram of a weather thermometer.
1 answer
336 views
How do I solve Quadratic equations by factoring?
(for example how would I solve n2 - 10n = -21 if I was supposed to get the
2 answers
609 views
a square in a circle with a radius of 2 pi .What is the perimeter of the square?
6 answers
611 views
If Jack's house is 7.1 miles due north of the Senior Citizen Center and Belinda's house is 6.3 miles due west of it, then to the
2 answers
841 views
To the nearest tenth,what is the circumference of a circle with an area of 49pi?
2 answers
676 views
If a line L with a slope of -2/5 passes through the points (5,0) and (x,-2) then what is the value of x?
1 answer
308 views
The radius of the small circle A is one-half the radius of the large circle B.WHat is the ratio of the area of the small circle
4 answers
1,803 views
If point A is (-3,-2) and point B is (5,5) then what is the length of segment AB to the nearest tenth?
1 answer
275 views
A certain printer can print at the rate of 80 characters per sound, and there is an average of 2,400 characters per page.If the
3 answers
1,797 views
A certain store is selling an $80 radio $64. If a different radio had a list price of $200 and was discounted at 1.5 times the
3 answers
2,068 views
Given (a+2,a-2)= a for all integers a, (6,2)=
a) 3 b) 4 c) 5 d) 6 e) 8 The cost of a drive-in movie is $y per vehicle. A group of
2 answers
531 views
1) Mr.Anderson has 3 passenger seats in his car.He offered to drive some of the 5 members of his daughter's club to the movies.
4 answers
629 views
1)If a (theres a square)b is defined as the average of a and b, what is the value of 2 (theres a square) 4 (theres a square) 9?
a
1 answer
414 views
Brian rode his motorbike for 3 hours at 50 miles per hour and then rode the next 200 miles in 5 hours.What is the total distance
7 answers
1,132 views
If x-1/3y=3, then the value of 3x-y-6=?
a) 15 b) 9 c) 6 d) 3 e) 0
3 answers
334 views
If the surface area of a cube is 150e2 what is the volume of the cube?
2 answers
735 views
A professional basketball team has won 50 out of the 75 games played so far.The team still has 45 games to play.How many of
6 answers
566 views
If the average of 10 numbers is 10 and the sum of five of the numbers is -25 what is the average of the other 5 numbers?
1 answer
289 views
John will have to make 180 monthly mortgage payments and the first payment was made on January 15,1989.If he makes one payment
3 answers
379 views
John will have to make 180 monthly mortgage payments and the first payment was made on January 15,1989.If he makes one payment
4 answers
516 views
the cube has a volume of 8.If point x,the midpoint of AV is joined to point y, the midpoint of edge CD what is the length of the
2 answers
506 views
If x-2y-z=2,x-y+2z=9 and 2x+y+z=3,then z=?
1 answer
215 views
a jar contains green,red,and blue marbles.The probability of choosing a blue marble is 1/3, the probability of choosing a red
3 answers
826 views
al has twice as many baseball cards as frank and four times as many football cards as joe. the expression 2x+4y can be used to
2 answers
905 views
need help
3 answers
229 views
The maximum speed of a child on a swing is 4.90 m/s. The child's height above the ground is 0.525 m at the lowest point in his
3 answers
758 views
Write a formula for f^-1 (x) if f(x) = (x+5)/(3x-4) and state the domain of F^-1
1 answer
315 views
Can someone please help me? I don't know how to work this out, and my friends don't either.
Eight hot dogs and ten buns come in
1 answer
424 views
Task Type: Individual Project Deliverable Length: 3 Parts: See Assignment Details
Points Possible: 150 Due Date: 11/5/2012
1 answer
936 views
Devise a test to distinguish between Cu2+ and Co2+.
1 answer
363 views
Devise a test to distinguish between Cu2+ and Co2+.
3 answers
346 views
Devise a test to distinguish between Cu2+ and Co2+.
3 answers
329 views
If businesses believe consumption will increase six months from now, everything else held constant, and they begin to increase
1 answer
325 views
given that Earth's surface gravitaitional field strength has a magnitude of 9.80N/kg, determine the distance(as a multiple of
5 answers
1,773 views
Identify two different types of businesses or corporations (be as specific as possible) that receive subsidies, through which it
2 answers
954 views
If the economy is at point C what is the cost of one more automobile?
One more forklift?
3 answers
1,451 views
In 1991, the federal minimum wage rate was $4.25 per hour. In 1997, it was increased to $5.15. Find the annual rate of change in
2 answers
812 views
A uniform ladder of 5.0 m long and 12 kg is leaning against the wall (contact with the wall = point b, contact with the floor =
1 answer
850 views
I don't know what 4r=96 means. Also I don't know what 51=3n means!π°ππ±π¨πHELP! It's due tomorrow
4 answers
764 views
Hi! Having a lot of trouble with this one problem. The venn diagram problem is n(U)-n(B). I realize I did not post the venn
2 answers
613 views
Suppose a basketball player is an excellent free throw shooter and makes 90% of his free throws (i.e., he has a 90% chance of
5 answers
11,358 views
A national caterer determined that 87% of the people who sampled their food said that it was delicious. A random sample of 144
4 answers
4,126 views
6 quarters, 4 dimes, 3 nickels, 10 pennies. what is the probability you will get at least one of each coin in change of 1 dollar
1 answer
352 views
You have two buffer solutions 1) weak acid and its conjugate base 2)weak base and its conjugate acid. Write explicitly (
4 answers
794 views
When 50.0ml of 1.00M HCl is titrated with 1.00M NaOH, the pH increases. calculate the difference in pH of the system when you
3 answers
610 views
What is a attribute?
1 answer
377 views
The sunglasses that Ramon wants to buy are 50% off the original price of 85$ .How much did he have to pay?
4 answers
333 views
One half of 9.76
3 answers
313 views
What property is this?
4(7+9)=(4x7)+(4x9)
1 answer
409 views
Three metals P,Q and R form three ionic solids with three nonmetals X,Y, ands Z respectively as follows P2X, QY2, and RZ3. If
1 answer
353 views
Calculate the pH of the following buffer solution that resulted from 125ml of 0.1M NH3 with 250ml 0.1 M NH4Cl ( for NH3, Kb=
1 answer
467 views
Calculate the pH of the following buffer solution that resulted from 125ml of 0.1M NH3 with 250ml 0.1 M NH4Cl ( for NH3, Kb=
3 answers
430 views
Substance X (MW=356gm) is a weak acid. Its Ka is 1.7x10^-3. Calculate pH of725ml of the following solutions:
a)Containing 0.187
3 answers
494 views
A lighthouse is east of a Coast Guard patrol boat. The Coast Guard station is 20 km north of the lighthouse. The radar officer
4 answers
2,403 views
What happens to the momentum of the truck if sand leaks at a constant rate through a hole in the truck bed while the truck
4 answers
1,293 views
If you want to teach whole classes how to use computers, where is the best place to locate the computers?
4 answers
883 views
An example of an exceptional child is one who
2 answers
901 views
If a child displays discriminatory behavior in the classroom, one should
1 answer
325 views
Females are passive
1 answer
294 views
Each plant of a certain variety yields 50 seeds in the early fall and then dies. Only 40 percent of these seeds produce plants
2 answers
566 views
An airplane traveled a distance d in t hours, where r>1, and arrived one hour late. The airplane would have arrived on time if
3 answers
516 views
tom had 18 comic books , while Diane and Helen had none. Tom gave 1/3 of the comic books to Diane who passed 1/3 of these books
1 answer
479 views
A car is traveling at 95km/hr. the driver steps on the brakes and the car comes to a stop in 60m. What is the car's
2 answers
764 views
Why do the trees drop their leaves in the fall?
6 answers
462 views
a tuning fork produces a sound of musical note middle C. It moves back and forth 256 time each second. What is the frequency of
1 answer
444 views
I have the sentence: Kyle seems calm despite his situation. Kyle is the subject, seems is the being verb, calm is a subject
4 answers
464 views
How did immigrants regard public education?
a. as an aid to assimilation b. as a threat to cultural heritage c. as a path to
2 answers
538 views
What is the antonym of brandishing?
a) furbishing b) concealing c) defacing d) galvanizing
2 answers
510 views
Bryan has 3 nickels, 3 dimes, and 2 quarters. What fraction of the coins is either a dime or a quarter?
There is a space for only
7 answers
2,235 views
a 2.52-g sample of a compound containing only carbon, hydrogen, nitrogen, oxygen, and sulfur was burned in excess O to yield
3 answers
1,868 views
In 1901, Thomas Edison invented the nickel-iron battery. The follwing reaction takes place in the battery.
Fe(s) + 2 NiO(OH)(s) +
3 answers
2,628 views
When copper(II) oxide is heated in the presence of hydrogen gas, elemental copper and water are produced. What mass of copper
4 answers
2,086 views
Possible Sources of error in a reaction or sodium bicarbonate and acetic acid. Also known as baking soda and vinegar.
3 answers
2,385 views
What are the molality and mole fraction of solute in a 32.3 percent by mass aqueous solution of methanol (CH3OH)?
molality = ?m
1 answer
654 views
How many milliliters of 0.326 M HCl would be required to titrate 5.48 g KOH?
2 answers
1,250 views
Write a balanced chemical equation that represents the self-ionization of water. (Use the lowest possible coefficients. Include
4 answers
3,712 views
Write the balanced chemical equation for each of the following. (Use the lowest possible coefficients. Include states-of-matter
2 answers
892 views
Write the balanced chemical equation for each of the following. (Use the lowest possible coefficients. Include states-of-matter
2 answers
658 views
the sum of an integer and the next greater integer is at least 27. find the lesser integer.
4 answers
592 views
HELP A Certain state's lottery LOTTO, is set up so that each player pays $1 per ticket and chooses six different numbers from 1
3 answers
1,200 views
how much lottery revenue has been allocated to education in nc
2 answers
753 views
Calculate a value for the solubility of (NH4)2C2O4H2O in g/100 cm3
at 298 K
1 answer
466 views
What are the risks of distribution of goods and materials
1 answer
319 views
A rectangular field is to be fenced off with 120 m of fencing materials. the length of the field is x. express the area in
3 answers
1,102 views
Hi, I'm doing a poem for a literature book called Red Sky In the Morning by Elizabeth Laird. The theme that my teacher assigned
1 answer
507 views
Two ways to write 67,000 ----place value
1 answer
291 views
USE THE RULE TO WRITE THE FIRST 12 TERMS IS THE PATTERN.
Rule: Add 10,subtract 5 First term: 11 WEAKNESS HERE
9 answers
796 views
Find the 2 and 3 digit factors of 4396 using the numbers 1-9.
1 answer
314 views
What is the radius of a real or imaginary nucleus of 42X^85?
1 answer
343 views
Find Derivative
F(x)= (x-2)(x^2-3x-1) And I got F'(x)= (x-2)(3x-3)+ (x^2-3x-1)(1)
3 answers
394 views
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