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David
Questions (1,323)
Jeanna wants to buy a new boat for her family. She has two payment options. The first option is to pay a cash payment of $7,200.
1 answer
602 views
Compare and contrast indirect versus direct values of biodiversity, and provide examples.
1 answer
1,845 views
Every item in the Just a Dollar store is priced at $1.00. When Mary Jo opens the store, there is $122.00 in the cash register.
1 answer
567 views
please help me im confused.
Every item in the Just a Dollar store is priced at $1.00. When Mary Jo opens the store, there is
1 answer
542 views
The weight of an astronaut plus his space suit on the Moon is only 270 N.
A. How much do they weigh on Earth, in Newtons,
1 answer
982 views
Find the equation of ALL horizontal tangents to the curve y^2=x^2+4/x, if any exists.
My work: Derivative- First I multiply
1 answer
733 views
Find the point on the curve x=4y-y^2 where the tangent to the curve is a vertical line.
My work: Finding the derivative.
0 answers
434 views
Find the point on the curve x=4y-y^2 where the tangent to the curve is a vertical line.
My work: Finding the derivative.
1 answer
653 views
Find the coordinatesof the point on the curve xy=10 in the first quadrant such that the normal line passes through the orgin.
My
2 answers
798 views
If 3x+xy+4y=8, what is the value of d^2y/dx^2 at the point (1,1)? My work:
3+(x)(dy/dx)+(y)+4(dy/dx)=0 dy/dx(x+4)=-3-y
1 answer
560 views
If 3x+xy+4y=8, what is the value of d^2y/dx^2 at the point (1,1)? My work:
3+(x)(dy/dx)+(y)+4(dy/dx)=0 dy/dx(x+4)=-3-y
0 answers
471 views
Point C is in the interior of angle ABD. The measure of angle ABD is 40 degrees. The measure of angle DBC is 3x-5. If angle ABC
3 answers
2,554 views
-5 an 7/12 divided by 12 equals
1 answer
466 views
8.5 Ed's = 10 Ebb's, 12 Ersk's = 100 Ed's and 5 Ebb's = 1 Zum.
How many Zum's in approx. 1 Ersk? Starts out: 1 Ersk*__________
2 answers
459 views
The nozzle of a fountain jet sits in the center of a circular pool of radius 3.50 m. If the nozzle shoots water at an angle of
0 answers
545 views
A Balloon carrying a basket is descending at a constant velocity of 20.0 m/s. A person in the basket throws a stone with an
2 answers
603 views
A meter stick has a mass of 0.12 kg and balances at its center. When a small chain is suspended from one end, the balance point
1 answer
1,823 views
Let x and y be real numbers such that x^2 + y^2 = 1. Find the maximum value of 2x - 5y.
3 answers
706 views
A particle is moving at 0.75c relative to a lab on Earth. By what percentage is the Newtonian expression for its momentum
in
1 answer
2,198 views
The line 4x + ky = -1 has a slope of 2/3. Find k.
a. 3/2 b. 6 c. -3 d. -6
1 answer
452 views
You deposit $100 at the end of each quarter in a sinking fund earning 4% compounded quarterly. How many quarterly deposits must
1 answer
513 views
8-hydroxyquinoline (Q) can complex and precipitate many metals. A mixture of the aluminium and magnesium complexes weighed
1 answer
4,658 views
The first month's dues will be used to rent a film about computer-related careers, to purchase a reference book, and to buy
1 answer
1,543 views
when you connect to a remote VPN server with your laptop running windows 8 what key item is your computer allocated
1 answer
1,190 views
42. Twenty minutes after a plane leaves the airport, it is reported to be 160 miles away. What average speed of the plane in the
2 answers
736 views
An automobile party leaves at 7:55 A.M., and arrives at its destination 15 miles away at 8:15 A.M. What was the average rate on
2 answers
378 views
40. How far (in miles) does a car travel when its average rate is 35 miles per hour and it travels for 3 hours and 24 minutes?
1 answer
512 views
18. In triangle ABC, m<C=2m<b,m<A=6m<B. what is the measure of <c?
A.5 degrees B.15 degrees C.20 degrees D.30 degrees E.40
1 answer
499 views
1. If b is positive integer less than 200, then how many integer pairs (a,b) satisfy the equation a/b= 2/9?
2 answers
433 views
1. If b is a positive integer than 200, then how many integer pairs (a,b) satisfy the equation a/b= 2/9
1 answer
444 views
16. If the base of a right triangle is 8 (square root)2 and the hypotenuse is 18, what is the area of the triangle?
A.14 B.14
1 answer
434 views
In set of 30 different positive integers, every number is even and/or a multiple of 3. If 22 of these numbers are even and 15
1 answer
677 views
2. If a^2-b^2=20 and a+b=2, what is the value of a-b?
I added the a^2-b^2+20 and a+b+20, but i couldn't get the answer to equal
1 answer
368 views
10.Thirty students in a chemistry class took a test on which the overall average score was 78. If the average score for 15 of
3 answers
653 views
9. In Mr.chin's math class there were g girls and b boys. The number pf girls was 5 less than twice the number of boys. What is
1 answer
643 views
2Na + 2H2O------> 2NaOH + H2 H=-386kJ
If 5g of sodium is added to 200g of water in an open container: (A) How much heat is
1 answer
568 views
The Park's are buying new carpet for their house.They need about 1,175 square feet of carpet.The carpet they buy is sold by the
1 answer
521 views
A 100 kg astronaut carries a launcher loaded with a 10 kg bowling ball; the launcher and the astronaut’s spacesuit have
2 answers
827 views
She waited patiently for her turn on line at the New Age bookstore.
adjective adverb noun verb
4 answers
766 views
. A stone is dropped from the top of a building that is 500m high. Disregarding air resistance how long does it take the stone
1 answer
645 views
Charlie must choose a number between and that is a multiple of , , and . Write all the numbers that he could choose. If there is
2 answers
510 views
A 69.5kg football player is gliding across very smooth ice at 2.15m/s . He throws a 0.470kg football straight forward.
A) What is
1 answer
12,721 views
1)6x+11y=30
A) x-intercept= (-24,0);y intercept =(0,19) B)x-intercept=(0,1/5);y intercept=(11/30,0)<<<< C)x-intercept= (5,0);y
1 answer
542 views
1) The linear function f(x) contains the points (-10, -29) and (-2, 83).
If g(x) = 25x - 50, which statement is true? A. The
2 answers
1,915 views
1) The linear function f(x) contains the points (-10, -29) and (-2, 83).
If g(x) = 25x - 50, which statement is true? A. The
4 answers
1,177 views
The table below represents the function f(x). (-6, 12),(-5,-8),(-4,-4), (-3,0),(-2,4),(-1,8),(0,12). If g(x) is a linear
1 answer
1,529 views
A company’s sales volume averages 4,000 units per year.
Recently, its main competitor reduced the price of its product to $48.
0 answers
666 views
When 155 mL of water at 26 degrees Celsius is mixed with 75 mL of water at 95 degrees Celsius, what is the final temperature of
1 answer
1,784 views
a point charge -q, mass m is flying up at the speed v(0)= v 0 from the distance x(0)=L from a uniformly and positively charged
0 answers
443 views
a point charge -q, mass m is flying up at the speed v(0)= v 0 from the distance x(0)=L from a uniformly and positively charged
0 answers
524 views
A cyclist rides her bike at a speed of kilometers per hour. What is this speed in kilometers per minute? How many kilometers
3 answers
2,532 views
Fred is 10 yrs older than Ted. In 3 yrs time Fred will be 3 times as old as Ted.
Let Fred be x yrs old now. Write an equation to
1 answer
591 views
tha area of a regular octagon found by decomposing the octagon into a rectangle into trapezoids is ________ m2
0 answers
508 views
A piece of rope is in the shape of a 12ft. by 16ft. rectangle. The same rope is then shaped into a square. What is the area of
1 answer
468 views
What is the angular momentum of a 1.0kg uniform cylindrical grinding wheel of radius 19cm when rotating at 1700rpm ?How much
1 answer
623 views
Determine the moment of inertia of a 11.1kg sphere of radius 0.794m when the axis of rotation is through its center.
1 answer
492 views
Graph the solution to the inequality on the number line
|4u-8|=>12
1 answer
1,300 views
The micrometer (1 μm) is often called the micron. (a) How many microns make up 1.5 km? (b) How many centimeters equal 1.5 μm?
1 answer
2,345 views
What is the probability that a fair coin, flipped twice, will land heads both times?
0 answers
224 views
Calculate the DHof for the following reaction under standard state conditions:
2 Ag2S(s) + 2 H2O(l) ---> 4 Ag(s) + 2 H2S(g) +
0 answers
547 views
Consider the following problem:
Target: 2NOCl(g) ? N2(g)+ O2(g)+Cl2 (g) ?Hrxn= ? Steps: 1. 1/2 N2(g) + 1/2 O2(g)? NO(g) ?H= 90.3
0 answers
602 views
Consider the following problem:
Target: 2NOCl (g) ¡æ N2 (g) + O2 (g) + Cl2 (g) ¥ÄHrxn= ? Steps: 1. ¨ö N2(g) + ¨ö O2(g)
0 answers
566 views
0=e^(2y)-e^(y)
Need to solve for y here, don't understand why answer is -ln(2) in the book. Thanks.
2 answers
459 views
what is the sum of the solutions of the equation
|2x-7|=11? A) -9 B) -7 C) 5 D) 7 E) 9 ***What is the most efficient way to solve
3 answers
1,455 views
Can you help me identify the subordinate clause in the sentence
The camel is the only pack animal that can stand the test of the
1 answer
715 views
Having trouble identifying subordinate clauses in the following sentences.
1. The airplane that we saw can land in only a few
1 answer
1,237 views
To your question Which of these clauses cannot stand alone?
The hummingbird is the only bird that can fly backward, I would say
1 answer
488 views
In the sentence, The hummingbird is the only bird that can fly backward, the verb is either "is" or "can fly"
I cannot determine
2 answers
1,111 views
Find the subordinate clause in the sentence
The hummingbird is the only bird that can fly backward.
1 answer
514 views
According to the given information, segment AB is parallel to segment DC and segment BC is parallel to segment AD.. Construct
3 answers
3,501 views
A typical organism that might occupy a forest in the southwestern United States is a
a. Cactus b. grizzly bear c. parrot d. polar
1 answer
630 views
Simplify -(-15x)-3x
4 answers
391 views
Calculate the simple interest on R3 500 invested at 6% per annum for 3 years
2 answers
518 views
What emotion is associated with weariness? I'm supposed to analyse the emotions that are expressed within a text, and the
1 answer
478 views
A math teacher wishes to use groups of 5 and/or 7 students for a class assignment. When she tries to make assignments she
2 answers
845 views
Wavelength in a Closed Column
Here is the prompt: We place a speaker near the top of a drinking glass. The speaker emits sound
0 answers
656 views
How do I give a BIG THANK YOU TO MS SUE?
1 answer
386 views
I was out of school for 4 days! I tried to catch up but....I need help with There are 20 muffuns on a plate. 2/5 are chocolate.
3 answers
418 views
equation for joules needed to increase water temp
1 answer
424 views
RNA is to U(Uracil) as DNA is to ?
a. Cytosine (don't think so) b. Guanine (don't think so) c. Thymine d. Adenine
2 answers
619 views
Reading titles and headings, and trying to get an overview of what lies ahead in a reading passage is called:
A:questioning
2 answers
489 views
Use the figure of a square pyramid to answer the following questions.
a.) Find the total surface area of the pyramid. b.) Find
1 answer
829 views
A person who is 5 feet, 6 inches (5.6 feet) tall casts a shadow (from N to S) that is 12 feet long. The distance along the
1 answer
1,351 views
A person who is 5 feet, 6 inches (5.5 feet) tall casts a shadow (from N to S) that is 12 feet long. The distance along the
1 answer
902 views
How much heat is absorbed when 500g of water goes from 25 to 35 degrees
1 answer
527 views
How many chromosomes are in a human blood cell?
What term describes a picture of the human chromosomes arranged in pairs?
1 answer
1,053 views
Find the tension T2 of the box hanging from the rope if 1 = 25°, 2 = 65°, T1 = 60.58 newtons, and W = 143.4 newtons.
1 answer
1,164 views
If the circumference of a circle is 16 pi, what is its area ?
2 answers
539 views
In triangle XYZ, the measure of angle Y is twice the measure of angle X, and the measure of angle Z is three times the measure
4 answers
2,334 views
Do breeders observe the genotypes or phenotypes in their organisms?
1 answer
494 views
A statistics professor is used to having a variance in his class grades of no more than 100. He feels that his current group of
0 answers
697 views
A statistics professor is used to having a variance in his class grades of no more than 100. He feels that his current group of
1 answer
2,472 views
Cot θ = 1/Tan θ = Cos θ/Sin θ = - SQRT of 15/7 =
1 answer
409 views
find the reference angle of -11pi/3
1 answer
632 views
sketch the angle 2pi/3
1 answer
315 views
Write sin(125°) in terms of its cofunction. Make sure your answer is a function of a positive angle.
1 answer
479 views
Write sin (125°) in terms of its cofunction. Make sure your answer is a function of a positive angle
1 answer
457 views
find the exact value of sin 2α if cos α=4/5 (α in quadrant I)
1 answer
493 views
find the exact value of tan 2β if sin β=5/13 (β in quadrant II)
1 answer
524 views
evaluate cot 2x = 5/12 with 0<=2x<=pi find cos x and sin x and tan x?
1 answer
423 views
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