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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. 375 views
Which layer of the earth has the largest radius
1. 1 answer
2. 285 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. 2 answers
2. 567 views
How have Russians adapted to their environment?
1. 0 answers
2. 277 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. 1 answer
2. 1,028 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. 1 answer
2. 551 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. 1 answer
2. 874 views
The British naval blockade of the North Sea Contributed to?
1. 1 answer
2. 710 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. 515 views
What type of conic is represented by the polar equation?r= 1 / 4-6cos theta Ellipse Hyperbola Parabola Circle Help! Homework
1. 1 answer
2. 1,976 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. 8,563 views
How are white and yellow produced by the opponent process?
1. 1 answer
2. 556 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. 1 answer
2. 3,369 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. 550 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. 1 answer
2. 648 views
What is the Net Ionic Equation for Nitric Acid and Potassium Carbonate?
1. 2 answers
2. 3,092 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. 2 answers
2. 814 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. 1 answer
2. 649 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. 1 answer
2. 1,127 views
-3x+2y=-6
1. 1 answer
2. 278 views
5 grams of H2 reacts with 16 g of O2, which in excess?2H2(g)+O2(g)=2H2O(g)
1. 2 answers
2. 564 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. 405 views
The diagonals of rectangle ABCD intersect at point E. If AE=2x+5, and BD=5x+2, what is AC?
1. 4 answers
2. 2,952 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. 500 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. 534 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. 1 answer
2. 564 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. 2 answers
2. 1,120 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. 340 views
1. Which function represents an initial population that increases 22% per year where A represents the initial value and X
1. 2 answers
2. 2,237 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. 3 answers
2. 627 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. 2 answers
2. 3,610 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. 1 answer
2. 605 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. 1 answer
2. 1,148 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. 1 answer
2. 1,217 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. 6 answers
2. 2,785 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. 3 answers
2. 498 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. 3 answers
2. 751 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. 2 answers
2. 946 views
What are some lifestyles for the following countries:-Kazakhstan -Kyrgyzstan -Latvia -Liechtenstein
1. 2 answers
2. 426 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. 1 answer
2. 3,180 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. 1 answer
2. 939 views
Mathew is attending a very loud concert by the discarded. To avoid permanent ear damage he decides to move farther from the
1. 4 answers
2. 2,296 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. 4,361 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. 2 answers
2. 660 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. 2 answers
2. 562 views
Evaluate the expression for the given value.x = -2; y = 3; z = -1 -2x^2y - 3xy^2z - xz =
1. 2 answers
2. 506 views
In a double-stranded DNA molecule, the percentage of Guanine can never be more than ___%. Why?
1. 0 answers
2. 412 views
Which of the following statements must be True? Check all that apply.The number of Adenines in single-stranded DNA equals the
1. 0 answers
2. 775 views
Solve the following:-6x + 3 <= 25
1. 1 answer
2. 317 views
Solve the following.2(x + 1) - 4 <= 1/4(12x - 24)
1. 1 answer
2. 325 views
Evaluate when x = 2, y = -5, z = 3.x^2 - y = 3 3z - 4(y + 1) - y^2 = 0 x - yz = -13
1. 1 answer
2. 652 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. 330 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. 0 answers
2. 650 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. 408 views
Find the x-intercept and the y-intercept of the linear equation 3x + 4y = 12. Write each intercept as an ordered pair.
1. 1 answer
2. 1,833 views
8 = p - 5Answer: p = 13 21 + y = 35 Answer: y = 14 6x = 54 Answer: x = 9
1. 2 answers
2. 360 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. 2 answers
2. 964 views
Solve for X.X/8 = -4/9
1. 1 answer
2. 286 views
Evaluate the following expressions when x = -2, y = 6, and z = -4y^2 + 3z 5y - 3(x^2 + 1) + z
1. 2 answers
2. 975 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. 1 answer
2. 1,007 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. 1 answer
2. 898 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. 388 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. 344 views
Three friends go to their favorite seafood restaurant for dinner. They decide to order a crab cake appetizer. When it arrives
1. 1 answer
2. 534 views
Your favorite chocolate chip cookie recipe makes 4 dozen cookies. Among the other ingredients, the recipe calls for> 1 cup of
1. 1 answer
2. 1,227 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. 2 answers
2. 475 views
Is 10.512 * 10^3 written in proper scientific notation? If not rewrite the number in proper scientific notation.
1. 2 answers
2. 542 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. 1 answer
2. 586 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. 2 answers
2. 409 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. 2 answers
2. 1,213 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. 491 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. 1 answer
2. 558 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. 1 answer
2. 621 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. 3 answers
2. 611 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. 2 answers
2. 506 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. 4 answers
2. 660 views
Simplify each of the following.1. 42/48 2. -15/35 3. 119/210
1. 1 answer
2. 369 views
Write as an improper fraction.1. 7 3/5 2. -12 1/2 3. 41 4/6
1. 1 answer
2. 410 views
Write as a mixed number.1. 13/11 2. -33/6
1. 1 answer
2. 441 views
How did having few industries affect southerners.Can someone please help me with this question
1. 1 answer
2. 440 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. 430 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. 0 answers
2. 531 views
N-type silicon (Si) has been produced by doping with phosphorus (P). The charge-carrier population based on electrical
1. 6 answers
2. 669 views
A glass of composition 85% SiO2 - 15% K2O is to be surface strengthened by ion exchange. To this end, two identical specimens
1. 2 answers
2. 611 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. 1 answer
2. 2,102 views
What is x when 6(x+4)+4(x+5)=74
1. 1 answer
2. 666 views
What is x when 6(x+4)+4(x+5)=74
1. 1 answer
2. 291 views
Subtract.[2x/(x^2-y^2)]-[7/(y-x)] Thank you! :)
1. 1 answer
2. 317 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. 520 views
how do you use a table to find a solution to4m - 5 = 11
1. 1 answer
2. 516 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. 2 answers
2. 2,103 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. 0 answers
2. 929 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. 0 answers
2. 563 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. 533 views
Find the price elasticity of demand. The demand function for the product is p=40-2x
1. 0 answers
2. 487 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. 0 answers
2. 550 views
Find the equation of the tangent line to the graph of √(xy)=x-2y at (4,1)
1. 1 answer
2. 996 views
Find the points at which f(x)=x^2(x+1)^3 has a horizontal tangent.
1. 1 answer
2. 386 views
What amperage is required to plate out .250 mol Cr from a Cr+3 solution in a period of 8.00 h?
1. 1 answer
2. 2,473 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. 2 answers
2. 3,978 views

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