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Lucy
Questions and answers by
Lucy
, page 5
Questions (625)
Let y = x^3 + ax^2 + bx. If (x,y) = (2,64) is a point on the curve and the slope of the tangent at x=-1 is 3, what is the value
1 answer
295 views
If f(x)=(x+1)^3(x^2-1)^2, what is the value of f'(2)?
Details and assumptions f'(x) denotes the derivative of f(x).
1 answer
279 views
the number of moles that contains 5.13x1022 atoms of manganese
1 answer
261 views
How many numbers
from 1 to 1000 inclusive can be expressed as the sum of k >= 2 consecutive positive integers for some value of k
4 answers
448 views
There is a woman that has a 40% chance of being in Casper recently, a 30% chance of being in Denver and a 27% chance that she
1 answer
317 views
thirty animals are to be used in a medical experiment on diet deficiency: 3 male and 7 female rhesus monkeys, 6 male and 8
4 answers
494 views
There is a woman that has a 40% chance of being in Casper recently, a 30% chance of being in Denver and a 27% chance that she
1 answer
293 views
A sprinter can reach a speed of 9.0 m/s in 1.0 s. If the sprinter’s acceleration is constant during that time, what is the
2 answers
540 views
| x | >= -8
1 answer
261 views
Find the y-intercept of the two coordinates ( 2, -5) and ( 6, 3). Please help me with this question and please explain to me and
4 answers
405 views
The profit in dollars in producing x- items of some commodity is given by the equation P = - 40 x^2 + 1000 x - 5250 .
How many
2 answers
517 views
Mary and Bob sold candy. Mary sold 4/5 as much candy as Bob did. If Mary sold 1/2 box how many boxes did Bob sell?
I did 4/5
1 answer
434 views
Thank You Ms. Sue.
Have a Good Night
1 answer
389 views
A true/ false test is given. If a person guesses the answers, the probability that any particular question is correctly answered
3 answers
1,639 views
ABCD is a parallelogram. P is a point on AB such that AP:AB = 1:4. Q is a point on CD such that DQ:DC = 1:3. AQ and DP intersect
1 answer
472 views
Is it "watch a one of a kind performance" or "watch one of a kind performance"
I thought it was the first one, while someone else
1 answer
360 views
At a critical junction in a supercomputer, the current as a function of time is given as
i(t) = 3t^2-2t, where i is measured in
1 answer
501 views
A potential difference of 2.0 V is applied across a wire of cross sectional area 2.5 mm2. The current which passes through the
2 answers
601 views
A 6.0 Ù resistor and a 3.0 Ù resistor are connected in parallel to a 1.5 V battery of negligible internal resistance. What is
4 answers
2,160 views
Jack has 2009 unit cubes glued together to form a cuboid. He opens a packet containing 2009 stickers. He has enough stickers to
1 answer
428 views
What is the concentration of hydronium ions in a solution that is 0.12 M HBrO(aq) and 0.160 M NaBrO(aq)?
3 answers
809 views
A uniform magnetic field makes an angle of 30 degrees with the axis of a circular loop of 300 turns and radius of 4 cm. The
1 answer
1,018 views
Imagine having an 80-turn coil with radius of 5.0 cm and resistance of 30 Ù. At what rate must a perpendicular magnetic field
1 answer
405 views
A particle is moving along the curve y= 4 sqrt{2 x + 2}. As the particle passes through the point (1, 8), its x-coordinate
5 answers
1,967 views
If y^3 = 16x^2
Determine dx/dt When x= 4 and dy/dt= -1
1 answer
327 views
Find the quadratic polynomial whose graph goes through the points (-2,5), (0,5), and (1,11).
f(x)= ______x^2+ ______x+ _______
3 answers
562 views
definiton: A set S subsect of real number,
sequence {Xn} is called bounded if there is a number M such that |X|≤ M for all x
4 answers
641 views
i noticed it doesn't have x in them. i don't know what to do.
prove: let epsilon>0. let f(x) = pi + 3 for x∈ real number. Prove
1 answer
409 views
Hello. I want make sure im doing right step.
Prove the supremum of the set A={2-1/n: n in natural number} is 3. My answer Proof:
2 answers
550 views
How do I solve these problems
You have 2000. g of aqueous NaOH solution. The percent by mass of the solute is 4.25%. How many
2 answers
529 views
A spherical balloon is to be deflated so that its radius decreases at a constant rate of 12 cm/min. At what rate must air be
1 answer
755 views
inquiry lab determining the refractive index of a variety of materials (Snell's Law Lab):
Basically this lab: We us a polar
3 answers
1,123 views
A projectile is accelerated from rest at point A along a circular track of radius 2 m, as shown in Fig. 5.1. Gravity acts in the
1 answer
416 views
Find an equation of the tangent line to the curve f(x) = (sins)^2 + 2tanx at x= pi/4. I worked through it and got y = 5x + 5/2
5 answers
388 views
Where does a clone receive is DNA from?
My guess is two parents
4 answers
367 views
You have a tanker that is filled with olive oil, which total mass = 200 kg. The tanker is in the shape of a rectangular box
2 answers
648 views
For any real number x there is a unique integer n such that n≤x<n+1, and the greatest integer function is defined as
2 answers
764 views
For f(x)= (x+3)^2/(4x-5) find all x such that f(x) increases.
1 answer
336 views
A sherman is in a rowboat on a lake and 3
km from shore. He wishes to reach a store 2 km down the (straight) shore. He can row at
4 answers
1,844 views
A roller coaster goes 40-m along a section of track sloping 10 degrees below the horizontal, followed by a 13-m section sloping
2 answers
547 views
Are there any structural isomers of hydrocarbons from methane to decane have 3 stereogenic C atoms? (i know that there are none
1 answer
375 views
The heat of combustion of bituminous coal is 2.5 x 10^4 J/g. What quantity of coal is required to produce the energy required to
3 answers
922 views
The small piston of a hydraulic lift has a diameter of 8 cm and its large piston has a diameter of 40cm. The lift raises a load
4 answers
1,948 views
An object has a volume of 4.0m^3 and weighs 40,000 Newtons. What will be its weight in water?
3 answers
1,014 views
The heat of combustion of bituminous coal is 2.5 x 10^4 J/g. What quantity of coal is required to produce the energy required to
7 answers
2,895 views
Evaluate each telescoping sum:
1) Sum from i = 1 to 100 of (5^i - 5^(i-1)). I know that I could apply the (n(n+1))/2 summation
3 answers
1,847 views
I am trying to figure out how the answer of 0.989 came from the following equation of correlation.
7(-5)-(25)(13)
1 answer
376 views
The length of a rectangular window is 5 feet more than its width, w. The area of the window is 36 square feet. Write an equation
2 answers
502 views
What will the sound of speed be in air if temp is 10 degrees Celsius.this is crickets looking for e plantation on equation
1 answer
446 views
How many grams of hydrogen gas be produced from the reaction of 3 g of magnesium with 4 g of hydrochloric acid. identify the
3 answers
719 views
How much time is required for a sound to travel 1 mile if the air temperature is:
0.0 Degrees Celsius 20.0 Degrees Celsius 40.0
4 answers
2,601 views
In tomatoes, the allele T for tall plant height is dominant to dwarf allele t, the P allele for smooth is dominant to the p
3 answers
1,492 views
The boss in your laboratory has just heard of a proposal by another laboratory that genes for eye color and the length of body
2 answers
975 views
kernel phenotype Number
colored, shrunken, starchy 116 colored, full, starchy 601 colored, full, waxy 2538 colored, shrunken,
1 answer
1,070 views
Question 12
An Hfr strain with the genotype cys+ leu+ met+ strS is mated with an F- strain carrying the genotype cys- leu -met-
2 answers
955 views
Which of the following does not occur during the PCR reactions?
A.Changes in the reaction temperature by a thermocycler
3 answers
1,125 views
DNA is often purified by DNA electrophoresis, like in old-school DNA sequencing. In DNA electrophoresis, fragment separation is
2 answers
581 views
DNA markers, or variant non-coding regions of DNA, are DNA polymorphisms that are useful for genetic mapping.
True False
1 answer
456 views
With PCR, one gene is all that is necessary to create a useful genetic fingerprint to discriminate between individuals.
True
1 answer
383 views
I PCR out a mutated gene in a patient with Lisenbee chorea (the inability to dance in a coordinated fashion) and I compare it to
3 answers
472 views
Which of the following are the purine nucleotides in DNA?
A.Adenine and thymine B.Cytosine and guanine C.Adenine and cytosine
1 answer
726 views
complimentary base pairing allows for:
A. spontaneous mutations to occur B. genes to be expressed as a phenotype C. DNA to serve
2 answers
595 views
Antiparallel means that:
A.the two polynucleotide chains run in opposite directions. B.each DNA molecule consists of one old and
1 answer
633 views
The definition of transformation is:
A.the shift of genetic information from DNA to protein. B.the recombination of DNA strands
1 answer
498 views
In E. coli, replication begins at which chromosome site?
A.The replication fork B.Hfr C.oriC D.TATA box E.Pribnow box
1 answer
426 views
What is a replication bubble?
A.A complex of replication enzymes on the DNA template strand B.A DNA sequence that initiates
1 answer
721 views
The two most basic steps of DNA replication are:
A.primase causes primer to bind the template and ligase copies the template.
2 answers
615 views
Though this question sucks, which enzyme elongates the new DNA strand starting at an RNA primer?
A.DNA polymerase I B.DNA
1 answer
706 views
Auxotrophs are organisms that can grow:
A.on minimal media. B.only with sunlight. C.only on amino acid supplemented media. D.only
2 answers
797 views
Wild type, or wt, refers to the genotype that is the typical genotype found in nature.
True False
1 answer
403 views
how can you find the bounderies given by the curve x=4sqrt(y) and y=4sqrt(x)? show your solution please. thanks to anyone who
1 answer
439 views
help pls. i need to find the best animation of the movement of electrons and protons... the best one... pls send me the link.
1 answer
408 views
1.) Write the standard form equation for the following Ellipse. Use the information given below.
Foci: (0,0) and (4,0) 2.) Write
3 answers
806 views
Write the standard form equation for the following Ellipse. Use the information given below.
Foci: (0,0) and (4,0) Major Axis of
2 answers
667 views
Seven students are running for four junior class representative positions in the upcoming student council elections. How many
3 answers
528 views
If you have a rocket with a mass of 30.0 kg, how much thrust will be needed to have a thrust to weight ratio of 3:1?
1 answer
365 views
The biosocial approach suggests that gender differences are based on:
a. the hormone and neurological differences between men and
3 answers
627 views
Last month, Bill's electric bill was $80.77. This month, Bill's bill was $69.06. What is the percent decrease?
0.01 0.16 0.15
6 answers
532 views
A fisherman has estimated that it takes 6 minutes to paint each square foot of the hull of his boat. How much time should the
2 answers
495 views
Write an equation to fit the description.
0° Celsius = 32° Fahrenheit. 100°C = 212°F. (Let x = degrees Celsius and y=degrees
2 answers
502 views
A ball of mass 0.6 kg, initially at rest, is kicked directly toward a fence from a point 20 m away, as shown below.
The velocity
4 answers
7,221 views
PLEASE HELP! this is do tomorrow :( I have no clue how to do any of it.
A plane is flying horizontally with speed 193 m/s at a
2 answers
503 views
Find two points on the graph of the parabola other than the vertex and x-intercepts.
k ( x ) = ( x − 1 )^(2) − 6
2 answers
1,021 views
Among all pairs of numbers with a sum of 34, find the pair whose product is maximum. Write your answers as fractions reduced to
4 answers
3,181 views
I'm so lost I have no idea. Please help
Write the equation of the line that represents this graph. Show your work or explain how
3 answers
498 views
Sal's Sandwich Shop sells wraps and sandwiches as part of its lunch specials. The profit on every sandwich is $2 and the profit
3 answers
1,403 views
Please check my answer
The domain of the following relation: R: {(−4, 8), (8, 10), (5, 4), (1, 6), (5, −9)} is a.
3 answers
1,900 views
Read the following line from "Not Waving but Drowning."
"Poor chap, he always loved larking And now he's dead" a. detached b.
4 answers
1,724 views
Which sentence correctly substitutes the bolded phrase?
Carla compro /los anteojos de sol./ Carla las compro Carla lo compro
6 answers
3,205 views
A verb phrase that acts as a noun is called a(n)
participal adverbial infinitive gerund Which of the following is a prepositional
6 answers
1,886 views
write the following equation in slope intercept form 3x+4y=12
I'm lost on this question
1 answer
353 views
please help me with this!!!
How can I rewrite this as a rational exponent? 3 square root 2^7 Thanks
1 answer
398 views
How do I rewrite this as a radical expression?
(3 2/3) 1/6
5 answers
1,401 views
Is the simplified form of 2square root of 3 − 2square root of 3 rational
Yes or No
3 answers
755 views
please help me with this sentence
they are many geeks already around the world.
4 answers
319 views
1. In which sentence is the word blander used logically?
A. The cook added spices to make the food taste blander B. If you do not
4 answers
1,636 views
Has anyone read "The Destructors" who can help me with a few questions?
My questions are: The mood on "The Destructors" is best
4 answers
2,396 views
The manager of Lone Star Restaurant believes that the average wait time of the Saturday evening meal is 30 minutes. To test this
2 answers
609 views
Porque el estafiilococo es resitente a los tratamiento con antibiotico
1 answer
103 views
ocasionalmente los hospitales tienen brote de infecciones por la bacteria estafilococos la cual reciste el tratamiento con
1 answer
155 views
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