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Alan

Questions (194)

The differential equation below models the temperature of an 87°C cup of coffee in a 19°C room, where it is known that the
1. 1 answer
2. 345 views
Which layer of the earth has the largest radius
1. 1 answer
2. 270 views
Two ships leave a harbor at the same time. One ship travels on a bearing s11w at 16 miles per hour. The other ship travels on a
1. 3 answers
2. 545 views
How have Russians adapted to their environment?
1. 1 answer
2. 260 views
An airplane flies at 150 km/h in a direction 30o South of East. At the same time a 50 km/h wind blows the plane in a direction
1. 4 answers
2. 969 views
A pollster conducts a survey by phone. The probability that a call does not result in a person taking this survey is 85%.
1. 2 answers
2. 526 views
Of 20 test scores, seven are less than or equal to 81. What is the percentile rank of a test score of 81?
1. 3 answers
2. 847 views
The British naval blockade of the North Sea Contributed to?
1. 2 answers
2. 684 views
For parametric equations x=a cos tAnd y=b sin t Describe how the values of a and b determine which comic section will be traced.
1. 1 answer
2. 484 views
What type of conic is represented by the polar equation?r= 1 / 4-6cos theta Ellipse Hyperbola Parabola Circle Help! Homework
1. 3 answers
2. 1,944 views
1.Which of the following should be included in your research presentation? Select all that apply (2 answers)***A.a broad topic
1. 50 answers
2. 8,517 views
How are white and yellow produced by the opponent process?
1. 2 answers
2. 529 views
Suppose H(X)=(6x-5)^3Find two functions f and g such that (f•g)(x)=H(x) Neither function can be the parent/ identity function
1. 4 answers
2. 3,333 views
if an aircraft flying at 250km/h at bearing N 45East for 1 hour meets a wind from the NW at 50km/h, then how long will it take
1. 1 answer
2. 517 views
There are 36 books on a bookcase.there are 9 nonfiction,12 fiction,and 15 science fiction. What is the probability of choosing a
1. 2 answers
2. 613 views
What is the Net Ionic Equation for Nitric Acid and Potassium Carbonate?
1. 4 answers
2. 3,051 views
What is the concentration in each of the following solutions?A) 240 mL of 0.200 M KNO3 is added to 160 mL of water. B) 2.25g of
1. 3 answers
2. 775 views
The quantity of Cl- in a water supply is determined by titrating the sample with Ag+. What mass of chloride ion is present in a
1. 2 answers
2. 613 views
7. A student conducts an experiment on a different hydrate. The empty crucible is heated to a constantmass of 24.330. A sample
1. 2 answers
2. 1,076 views
-3x+2y=-6
1. 1 answer
2. 257 views
5 grams of H2 reacts with 16 g of O2, which in excess?2H2(g)+O2(g)=2H2O(g)
1. 3 answers
2. 528 views
A wheel 2ft wide rolls a distance of .015 miles in .005 hours. What is the wheels speed in rpm's?
1. 1 answer
2. 372 views
The diagonals of rectangle ABCD intersect at point E. If AE=2x+5, and BD=5x+2, what is AC?
1. 5 answers
2. 2,907 views
Nicotine is a basic substance and its dissociation constant is about 1.0 x 10-6. To prepare a solutionwater with 0.01 mol L-1,
1. 1 answer
2. 480 views
An amount of 25ml of a 0.8 Molar solution of pure KNO3 and placed in a volumetric flask. Is added water until the thin volume
1. 1 answer
2. 498 views
An aluminum sheet used for food preservation weighs about 0.05 g/cm-2 How many electrons are in a 1 cm2 of this sheet?
1. 2 answers
2. 534 views
1) Given that p(-3), p(-1), and p(5)=0, which expression could be p(x)?A)x^3-x^2-17x-15 B)x^3+x^2-17x+15 C)x^3-3x^2-13x+15
1. 3 answers
2. 1,081 views
Hello again! I would appreciate help very much on this. Thank you!1) For which values of x is y equal to 16 in the equation
1. 1 answer
2. 311 views
1. Which function represents an initial population that increases 22% per year where A represents the initial value and X
1. 4 answers
2. 2,196 views
1) Malene rented a compact car for 10 days and drove it 620 miles for a total cost of 412$. Patrick rented a compact car at the
1. 4 answers
2. 596 views
1) Given that p(-3), p(-1), and p(5)=0, which expression could be p(x)?A)x^3-x^2-17x-15 B)x^3+x^2-17x+15 C)x^3-3x^2-13x+15**
1. 4 answers
2. 3,575 views
1)If the roots of a quadratic equation are -2 and 3, the equation can be written asA) (x+2)(x+3) B) (x-2)(x+3)** C) (x+2)(x-2)
1. 2 answers
2. 575 views
A constant retarding torque of 12 N*m stops a rolling 0.80 m diameter wheel in a distance of 15 m. How much work does the torque
1. 3 answers
2. 1,106 views
Three blocks are connected on the table as shown below. The coefficient of kinetic friction between the block of mass m2 and the
1. 2 answers
2. 1,182 views
Mary wants to hang a mirror in her room. The mirror and frame must have an area of 7 square feet. The mirror is 2 feet wide and
1. 7 answers
2. 2,736 views
What were the major changes in sciences view of the nature of the universe and humanity's place in it between 1850 and 1914? How
1. 4 answers
2. 467 views
The US Post Office has a limit on the size of packages it will accept for mailing. The length plus the girth must be 84 inches
1. 4 answers
2. 689 views
Mimi's Market sold 24 heads of lettuce one morning. That afternoon 2/7 of the remaining heads of lettuce were sold. The number
1. 4 answers
2. 897 views
What are some lifestyles for the following countries:-Kazakhstan -Kyrgyzstan -Latvia -Liechtenstein
1. 3 answers
2. 398 views
A ball rolling with initial velocity of 40m/s(W) undergoes an acceleration of 5.0m/s^2(N) for a period of 6.0seconds.(A) what is
1. 4 answers
2. 3,142 views
A ball rolling with initial velocity of 40m/s(W) undergoes an acceleration of 5.0m/s^2(N) for a period of 6.0seconds.(A) what is
1. 3 answers
2. 895 views
Mathew is attending a very loud concert by the discarded. To avoid permanent ear damage he decides to move farther from the
1. 6 answers
2. 2,250 views
Fred has 15 cowsJohn has twice as many cows as Fred had when Fred had as many cows as John has now how many cows has John?
1. 15 answers
2. 4,270 views
What ketone or aldehyde would be reduced to produce each alcohol, respectively:a. 3,3-Dimethyl butan-2-ol b. 3-Methyl butan-1-ol
1. 3 answers
2. 615 views
Evaluate the expression for the given value.x = 3; y = -5; z = -2 x(yz)^2 - 3(xyz)^0 + 2x^2yz^2 = 3(-5 * -2)^2 - 3(3 * -5 *
1. 3 answers
2. 541 views
Evaluate the expression for the given value.x = -2; y = 3; z = -1 -2x^2y - 3xy^2z - xz =
1. 3 answers
2. 474 views
In a double-stranded DNA molecule, the percentage of Guanine can never be more than ___%. Why?
1. 1 answer
2. 392 views
Which of the following statements must be True? Check all that apply.The number of Adenines in single-stranded DNA equals the
1. 1 answer
2. 750 views
Solve the following:-6x + 3 <= 25
1. 1 answer
2. 294 views
Solve the following.2(x + 1) - 4 <= 1/4(12x - 24)
1. 1 answer
2. 301 views
Evaluate when x = 2, y = -5, z = 3.x^2 - y = 3 3z - 4(y + 1) - y^2 = 0 x - yz = -13
1. 2 answers
2. 629 views
Simplify or solve as appropriate. Enter ns if there's no solution or all if the solution is all real numbers.2 - 3(x + 5)) = 10
1. 1 answer
2. 314 views
Using the linear equation y = -3x + 5, complete the table of values (T-Chart) and choose the correct graph.X = -2 Y = _ X = -1 Y
1. 2 answers
2. 629 views
Using the linear equation y = 5, answer each of the following.Choose all points that would be on this line. (0,5), (5,5), (2,5),
1. 1 answer
2. 386 views
Find the x-intercept and the y-intercept of the linear equation 3x + 4y = 12. Write each intercept as an ordered pair.
1. 3 answers
2. 1,805 views
8 = p - 5Answer: p = 13 21 + y = 35 Answer: y = 14 6x = 54 Answer: x = 9
1. 3 answers
2. 339 views
Solve -4x is less then equal to -16.I got x is less then equal to 4. Is this correct I'm kind of confused with this question.
1. 4 answers
2. 923 views
Solve for X.X/8 = -4/9
1. 1 answer
2. 267 views
Evaluate the following expressions when x = -2, y = 6, and z = -4y^2 + 3z 5y - 3(x^2 + 1) + z
1. 3 answers
2. 951 views
When driving to the beach, you drive 240 miles on 9 gallons of gas. When you arrive at the beach you fill up your gas tank.
1. 2 answers
2. 972 views
Choose True or False for each of the following.87% is equivalent to 0.87 True or False 1.29 is equivalent to 129% True or False
1. 2 answers
2. 873 views
Convert each of the following. Round your answer to two decimal places if necessary.0.68 miles = 43084.80 inches 10259 feet =
1. 1 answer
2. 368 views
If a boat travels at 5 miles per hour, how many feet per second does it travel? Round your answer to two decimal places if
1. 1 answer
2. 319 views
Three friends go to their favorite seafood restaurant for dinner. They decide to order a crab cake appetizer. When it arrives
1. 2 answers
2. 512 views
Your favorite chocolate chip cookie recipe makes 4 dozen cookies. Among the other ingredients, the recipe calls for> 1 cup of
1. 2 answers
2. 1,197 views
Perform the indicated operation and simplify.1. 1/4 + 1/3 = 2/3 2. 4/7 - 5/6 = 1/6 3. 3/5 * -4/7 = -12/35 4. 10/11 divided by
1. 3 answers
2. 441 views
Is 10.512 * 10^3 written in proper scientific notation? If not rewrite the number in proper scientific notation.
1. 3 answers
2. 514 views
You have a table in your living room with a round top that has a diameter of 2 1/2 feet. You would like to put a piece of glass
1. 2 answers
2. 542 views
You pull into a gas station where the sign says the gas costs $3.679. To fill up your tank you need 20 1/2 gallons of gas. You
1. 3 answers
2. 385 views
Perform the indicated operation. Write your answer as a simplified fraction.1. 1/3 + 0.25 = 7/12 2. 0.3125 - 1/4 = 1/16 3. -7/10
1. 3 answers
2. 1,191 views
Convert the following decimals to a simplified mixed number.1. 0.33 = 1/3 2. 1.875 = 1 7/8
1. 1 answer
2. 464 views
You and your friend ordered a 12 inch pizza to split for lunch. How many square inches of pizza do you each get to eat? Round
1. 2 answers
2. 533 views
You live 35 1/3 miles from your grandmother's house. You're workplace is 7 2/5 miles from your grandmother's house. If you drive
1. 2 answers
2. 585 views
Multiply each of the following. Write your answer as a simplified fraction.1. 4/7 * 5 = 20/7 2. 15/28 * 7/9 = 105/252 3. -3 1/5
1. 4 answers
2. 566 views
Add each of the following. Write answer as a simplified improper fraction.1. 3/25 + 8/35 = 61/175 2. 5 1/4 + 3 5/12 = 26/3 3. -4
1. 3 answers
2. 486 views
Convert the following fractions to decimals. Round to 2 decimal places if necessary.1. 1/4 2. -3 7/16 3. 25/13
1. 5 answers
2. 635 views
Simplify each of the following.1. 42/48 2. -15/35 3. 119/210
1. 1 answer
2. 347 views
Write as an improper fraction.1. 7 3/5 2. -12 1/2 3. 41 4/6
1. 1 answer
2. 382 views
Write as a mixed number.1. 13/11 2. -33/6
1. 1 answer
2. 417 views
How did having few industries affect southerners.Can someone please help me with this question
1. 1 answer
2. 418 views
I have this weird question that has to do with linear equations (I think), and this is what it says.Let f(x) = 4x - 5 A. Find
1. 1 answer
2. 397 views
The parabola, B, represents a shuriken's maximum throwing distance, which was 60 meters of the enemy ninja, A, from a height of
1. 1 answer
2. 505 views
N-type silicon (Si) has been produced by doping with phosphorus (P). The charge-carrier population based on electrical
1. 7 answers
2. 620 views
A glass of composition 85% SiO2 - 15% K2O is to be surface strengthened by ion exchange. To this end, two identical specimens
1. 3 answers
2. 565 views
Consider the heterogeneous equilibrium process shown below.C(s) + CO2(g) 2 CO(g) At 700.°C, the total pressure of the system is
1. 4 answers
2. 2,053 views
What is x when 6(x+4)+4(x+5)=74
1. 2 answers
2. 641 views
What is x when 6(x+4)+4(x+5)=74
1. 1 answer
2. 273 views
Subtract.[2x/(x^2-y^2)]-[7/(y-x)] Thank you! :)
1. 1 answer
2. 284 views
A jet leaves an airport on a bearing of N 77* W and travels for 243 mi. It then turns and continues on a bearing of S 13* W for
1. 1 answer
2. 490 views
how do you use a table to find a solution to4m - 5 = 11
1. 2 answers
2. 497 views
A cone is created from a paper circle with a 90° sector cut from it. The paper along the remaining circumference of the circle
1. 4 answers
2. 2,059 views
Sketch the graph of f(x)=(x^2 + 2)/x^2 - 4.Fund the vertical and horizontal asymptotes, the critical points, the points of
1. 1 answer
2. 892 views
Sketch the graph of f(x)=x+2/x-4. Find the vertical and horizontal asymptotes, critical points, concave up/down, and inflection
1. 1 answer
2. 527 views
Sketch the graph of f(x)=-x^4 + 4x^3 - 16x + 16:Find the critical points, concave up/down, inflection points, vertical
1. 1 answer
2. 490 views
Find the price elasticity of demand. The demand function for the product is p=40-2x
1. 1 answer
2. 459 views
Find the relative extrema and absolute extrema if any. Use the first derivative test for the function f(x)=x^3-3x+2
1. 1 answer
2. 510 views
Find the equation of the tangent line to the graph of √(xy)=x-2y at (4,1)
1. 2 answers
2. 953 views
Find the points at which f(x)=x^2(x+1)^3 has a horizontal tangent.
1. 1 answer
2. 366 views
What amperage is required to plate out .250 mol Cr from a Cr+3 solution in a period of 8.00 h?
1. 4 answers
2. 2,442 views
The New York Times cost $0.15 in 1970 and $0.75 in 2000. The averagewage in manufacturing was $3.23 per hour in 1970 and $14.32
1. 4 answers
2. 3,943 views

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