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Erica
Questions and answers by
Erica
, page 3
Questions (399)
Twelve children are divided up into three groups, of five, four, and three children, respectively. In how many ways can this be
3 answers
680 views
In the game of poker, determine the number of ways a straight (five cards with consecutive values, such as A 2 3 4 5 or 7 8 9 10
1 answer
313 views
Assume that P(A) = 0.4, P(B) = 0.4, and P(A∪B) = 0.7. Find P(A∩B) and P(A complement ∩ B complement).
2 answers
489 views
Discuss why England's North American colonial empire had outstripped those of her European rivals by the end of the seventeenth
2 answers
533 views
large dose of vitamin C are supposed to cure the common cold. One commercial over-the-counter product consists of 500-mg tablets
5 answers
3,117 views
The ratio of the side lengths of a triangle. Is 2:4:5 and the perimeter is 55 cm. What is the length of the shortest side?
3 answers
1,320 views
You toss a fair coin four times. Find the probability of no more than three heads given that at least one toss resulted in
1 answer
472 views
A screening test for a disease shows a positive test result in 95% of all cases when the disease is actually present and in 20%
1 answer
448 views
A drawer contains six bags numbered 1-6, respectively. Bag i contains i blue balls and 2 green balls. You roll a fair die and
1 answer
934 views
A drug company claims that a new headache drug will bring instant relief in 90% of all cases. If a person is treated with a
1 answer
487 views
Assume that 20% of a very common insect species in your study area is parasitized. Assume that insects are parasitized
1 answer
515 views
For this question, the directions say to name the TWO infinitive phrases in this sentence...
His wish to succeed as an architect
5 answers
688 views
A car is speeding at 33.4 m/s. A police car starts in pursuit from rest when the car is 100 m past the cruiser. At what rate
2 answers
600 views
A car's initial velocity of 13.5 m/s accelerates at a rate of 1.9 m/s^2 for 6.2 s. Then, it accelerates at a rate of -1.2 m/s^2
4 answers
1,489 views
What kind of clause would (when painters looked at rapidly moving horses.) would it be a adverb,adjective, or noun?
1 answer
317 views
-13^2-4(-13)(36)
That answer squared
1 answer
270 views
Ultrasound with a frequency of 4.275 MHz can be used to produce images of the human body. If the speed of sound in the body is
1 answer
370 views
If 2.44 moles of H2 are reacted with excess Cl2, how many moles of Hcl can be produced? Please explain.
4 answers
570 views
How many formula units of (NH4)3PO4 are present in 12.25 g of K3PO4? Please explain so I can do these in the future! Very
3 answers
398 views
In a Cc x Cc crossing of peas, 5 offspring are of genotype CC, 12 are of genotype Cc, and 6 are of genotype cc. What is the
1 answer
477 views
On some tubes of caulking, the diameter of the circular
nozzle opening can be adjusted to produce lines of varying thickness. The
2 answers
595 views
the design below grows each day, as shown. if the pattern continues to grow like this, how many tiles will there be in the
6 answers
1,076 views
2NaOH+2Al+2H2O --> 2NaAlO2+3H2
here is the reaction. If i am trying to find the mass of hydrogen produced and i am trying to
3 answers
1,812 views
I snap my fingers now. in one second, i snap them again. I wait two seconds and snap them a third time. I wait four seconds
5 answers
1,482 views
Suppose that people's heights (in centimeters) are normally distributed, with a mean of 165 and a standard deviation of 6. We
1 answer
450 views
The population of humorville is 8,500 people. In this town, jokes travel fast. In one hour, each person who hears a joke tells
2 answers
843 views
How can you determine which colorless liquid is less dense?
1 answer
359 views
Nico was stunned when he opened the mail. Here was a check for $322.50! This was the interest he earned on his investment. One
4 answers
1,206 views
Tino conducted a survey of all the eighth graders in his school for his math project. He asked each student how much he or she
9 answers
1,717 views
At Irv's Rental Shop, Irv rents all kinds of cycles: unicycles, tandem bikes, regular bikes, and even tricycles for little kids.
1 answer
705 views
Jack is married to Jill. Their son, Junior, asked each of them to reveal their ages. Junior’s parents decided to tell him, but
1 answer
1,152 views
What is the image of A(4,4) under a reflection in the point P(4,-2)?
1 answer
844 views
An amplifier has an input power of 5 mW. The output power is 100 mW. What is the decibel gain to the nearest decibel?
4 answers
3,274 views
the dome over a town hall has a parabolic shape. the dome measures 48 m across and rises 12m at the centre. A vertical column
5 answers
1,261 views
The left ventricle of the heart accelerates blood from rest to a velocity of + 29.8 cm/s. (a) If the displacement of the blood
1 answer
443 views
A sample of 2.00 mol O2 (assumed perfect) is originally confined in a 20.0L at 273K and 2.24 atm. it undergoes reversable
1 answer
356 views
To what volume should you dilute 43.5mL of a 4.20M KI solution so that 24.0mL of the diluted solution contains 2.80g of KI?
4 answers
702 views
I need help please I am so confused.
How much dry solute would you take to prepare each of the following solutions from the dry
5 answers
5,124 views
"Stephenson Real Estate Company was founded 25 years ago by the current CEO, Robert Stephenson. The company purchases real
1 answer
769 views
A fence 8 feet tall stands on level ground and runs parallel to a tall building. If the fence is 1 foot from the building, find
4 answers
1,283 views
A survey of adults found that 35% say that their favorite sport is professional football. You randomly select 120 adults and ask
1 answer
752 views
A beverage comopany uses a machine to automatically fill 1-liter bottles. Assume that the population of volumes is normally
3 answers
536 views
A rocket is launched from ground level with an initial vertical velocity (v0) of 176 ft/s. After how many seconds will the
4 answers
3,492 views
Pat worked 43 hours and received $7.25 per hour for regular pay and time-and-a-half for all hours over 40 hours. What were her
2 answers
1,100 views
The velocity v of a freefalling skydiver is well modeled by the differential equation
m*dv/dt=mg-kv^2 where m is the mass of the
3 answers
2,649 views
The charges on a monthly water bill came to $0.86 per cubic meter of water used, plus a service charge of $4.49.
Last month
4 answers
844 views
Consider the differential equation: dy/dt=y/t^2
a) Show that the constant function y1(t)=0 is a solution. b)Show that there are
1 answer
511 views
For the following initial value problem:
dy/dt=1/((y+1)(t-2)) a)Find a formula for the solution. b) State the domain of
1 answer
440 views
Consider the differential equation: dy/dt=y/t^2
a) Show that the constant function y1(t)=0 is a solution. b)Show that there are
2 answers
605 views
For the following initial value problem:
dy/dt=1/((y+1)(t-2)) a)Find a formula for the solution. b) State the domain of
1 answer
659 views
Consider the differential equation: dy/dt=y/t^2
a) Show that the constant function y1(t)=0 is a solution. b)Show that there are
5 answers
3,161 views
For the following initial value problem:
dy/dt=1/((y+1)(t-2)), y(0)=0 a)Find a formula for the solution. b) State the domain of
2 answers
488 views
a) Sketch the phase line for the differential equation
dy/dt=1/((y-2)(y+1)) and discuss the behavior of the solution with initial
2 answers
754 views
a) Sketch the phase line for the differential equation
dy/dt=1/((y-2)(y+1)) and discuss the behavior of the solution with initial
1 answer
388 views
a) Sketch the phase line for the differential equation
dy/dt=1/((y-2)(y+1)) and discuss the behavior of the solution with initial
4 answers
1,534 views
a) Sketch the phase line for the differential equation
dy/dt=1/((y-2)(y+1)) and discuss the behavior of the solution with initial
1 answer
433 views
If capital’s share of income is 25% and labor’s share of income is 75%, the stocks of both capital and labor increase by 50%
1 answer
729 views
Locate the bifurcation values of a for the one-parameter family and describe the bifurcation that takes place at each such
1 answer
614 views
Locate the bifurcation values of a for the one-parameter family and describe the bifurcation that takes place at each such
1 answer
433 views
I have to solve this equation using substitution.
3x+5y=10 2x+ 1/2y=24 This is all one problem
3 answers
716 views
What would a careful researcher ask about a Web site called "Facts about pesticides and health"
published by the Coalition for a
5 answers
347 views
find the sum of each finite arithmetic series 8+9+10+...+15
3 answers
814 views
Solve equation by expressing each side as a power of the same base & then equating exponents.
e^x+5=1/e^6
1 answer
391 views
One-ninth of Polymer Plastics’ sales are made in New England. If New England sales amount to $600,000, what are the total
1 answer
384 views
Imagine a giant dry-cleaner's bag full of air at a temperature of -31 floating like a balloon with a string hanging from it 15
1 answer
721 views
The quantity of heat that changes the temperature of a mass of a substance is given by , where is the specific heat capacity of
2 answers
590 views
Can you help me with this problem please... 8x-3(x-5)=30
4 answers
253 views
Can you help me with this problem please... 3y+5(y-3)+8
4 answers
231 views
Can I get help with this one :/... 3x-2(3x-2)
7 answers
261 views
8-3x=2x-8
4 answers
270 views
Find the area of a circular rug that is 12ft in diameter.
3 answers
537 views
Find the perimeter of a triangle with sides 2ft 4in, 3ft, and 4ft 6in.
2 answers
743 views
2.8x+75=5.3x+15
1 answer
259 views
Can you help me with this problem please? I would thank you if you can explain it to me.
You want to tile your kitchen floor. The
2 answers
540 views
3(n-2)+7=5
1 answer
276 views
Natureland Garden centr buy lawn mowers that list for $679.95 less 30% trade discount. What is the dollar amount of the trade
2 answers
866 views
Fantasia Florist Shop purchases an order of roses with a list price of $2,375 less trade discounts of 15/20/20. What is the
1 answer
420 views
What is the net price factor for trade discount of 25/15/10?
.75*.85*.90=.57375 Is my answer correct?
1 answer
353 views
You are the accountant for Suite Dreams, a retail furniture store. Recently, an order of sofas and chairs was received from the
1 answer
481 views
You are the accountant for Suite Dreams, a retail furniture store. Recently, an order of sofas and chairs was received from the
1 answer
454 views
You are the accountant for Suite Dreams, a retail furniture store. Recently, an order of sofas and chairs was received from the
1 answer
639 views
(4k exponent2) exponent5
1 answer
236 views
a small farm field is a square measuring 340 ft on a side. what is the perimeter of the field?
3 answers
1,470 views
Determine the annual net cost of this checking account?
Annual interest of 2.5% paid if balance exceeds $750, $8 monthly fee if
4 answers
3,929 views
Find two numbers the exact answer is between 4 x 94
5 answers
569 views
What would the density of a sphere of radius 1.07 m have to be in order to produce a gravitational acceleration of 1.01 m/s2 at
1 answer
1,005 views
What would the density of a sphere of radius 1.07 m have to be in order to produce a gravitational acceleration of 1.01 m/s2 at
1 answer
444 views
There are 62 students in a football league. How many teams of 6 can they make.
1 answer
371 views
You are holding a bulletin board weighing 7.01 N in place against a wall while your friend secures it to the wall. To keep it
1 answer
465 views
You are holding a bulletin board weighing 7.01 N in place against a wall while your friend secures it to the wall. To keep it
1 answer
401 views
How do you determine the absolute error of the equivalence point determined by a graph?
1 answer
279 views
MOVIE CLUB Members of a movie rental club pay $15 annual membership fee and $2 for new release movies. Non Members pay $3 for
2 answers
864 views
If J=12, what is J/3+3?
1 answer
355 views
What factors influence the size of the t-statistics( mean difference, variance, sample size) and which way?
1 answer
459 views
A newspaper carrier has $4.00 in change. He has two more quarters than dimes but five times as many nickels as quarters. How
2 answers
1,033 views
The drawing shows three particles far away from any other objects and located on a straight line. Particle B is located in the
2 answers
2,155 views
If we eliminate free will completely, we would also be eliminating:
A. the possibility of genetic bases for human behavior. B.
7 answers
774 views
The power to make choices and engage in actions that originate with ourselves is referred to as:
A. Free will B. Objectivism. C.
4 answers
663 views
If a number of 2 digits is divided by the sum of its digits, the quotient is 2 and the remainder is 2. If it's multiplied by the
2 answers
584 views
Which of the following might help us develop open-mindedness and the virtue of tolerance?
A. Recognizing that people have free
2 answers
680 views
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