Thursday
July 31, 2014

Posts by randy


Total # Posts: 342

ALGEBRA
Graph the following first-degree inequality in two unknowns. $$ y > {\color{red}2} x - {\color{red}2} $$

ALGEBRA
Find the functional values requested in the problem. h(x)=3 x-1 (a) h(0) = (b) h(-7) =

ALGEBRA
Solve the exponential equation. Give the exact value for x. (Express all logarithmic functions in terms of ln(x) in your answer.) text((a) ) e^x = 10 x = text((b) ) e^x = 2.0 x = text((c) ) e^x = 37.9 x =

ALGEBRA
Graph the equation. x = -6

ALGEBRA
(log\(A\))/(log\(B\)) = (ln\(A\))/(ln\(B\)) (log_b\(A\))/(log_b\(B\))=log_b\((A)/(B)\) text(In )log_b\(N\), text( the exponent is )N. text(If ) log_1.5\(8\)=x, text( then ) x**(1.5) =8. log\(500\) text( is the exponent on ) 10 text( that gives ) 500.

ALGEBRA
The product of two consecutive positive even numbers is 528. What are the numbers? (Enter solutions from smallest to largest.) and

ALGEBRA
Solve the inequality. (Enter INFINITY for infinity and -INFINITY for -infinity as needed.) 6<=5 - y

ALGEBRA
Solve the equation. (Enter solutions from smallest to largest. If there is no solution, enter NONE in the answer boxes.) x2 - 5x + 5 = 0 x = x =

ALGEBRA
Write the expression in terms of common logarithms, and then give a calculator approximation (correct to four decimal places). log_(7) \(80\)

ALGEBRA
Contract the expressions. That is, use the properties of logarithms to write each expression as a single logarithm with a coefficient of 1. text((a) ) ln\(3\)-2ln\(4\)+ln\(8\) text((b) )ln\(3\)-2ln\(4+8\) text((c) )ln\(3\)-2(ln\(4\)+ln\(8\))

ALGEBRA
Use the definition of logarithm to simplify each expression. text((a) )log_(3b) \(3b\) text((b) )log_(4b) \((4b)^6\) text((c) )log_(7b) \((7b)^(-11)\)

ALGEBRA
The velocity v (in feet per second) of a rock dropped into a well is related to time (in seconds) by the formula v = 32t. What is the velocity of the rock at the indicated instant? Write your answer in the form (t, v). (a) when the rock is released ( , ) (b) after 9 seconds

chemistry
the heat of fusion water is335 J/g. The heat of evaporization of water is 2.26 kJ/g, the specific heat of ice is 2.05 J/Deg/g, the specific heat of steam is 2.08 J/deg/g and the specific heat of liquid water is 4.184 J/deg/g. How much heat would be needed to convert 12.09 g of...

chemistry
the heat of fusion of water is 335 J/g. How much heat would be required to melt 97.8 g of ice

chemistry
the heat of vaporizaton of water is 2.26kJ/g. How much heat is needed to change 4.2 g of water to steam.

chemistry
the heat of vaporization of water is 2.26kJ/g. how much heat is needed to change 2.55 g of water to steam?

Chemistry
What mass of ammonia is produced when 1.73 L of nitrogen (STP)react completely in the following equation? N2 + H3 > 2NH3

Chemistry
what volume of ammonia gas will be produced when 8.01 L of hydrogen react completely in the following equation. N2 + 3H2 > 2NH3 this stuff is so confusing because one little word seems to change the entire process for solving.

Chemistry
what volume of ammonia gas will be produced when 1.26L of nitrogen react completely in the following equation? N2 + 3H2 > 2NH3 Please if someone can just give me the order of operation it will be much appreciated because chemistry is just not my forte.

Chemistry
What mass of oxygen is consumed when 1.73L of carbon dioxide (STP) are produced in the following equation. C4H8 + 6 O2 > 4 CO2 + 4 H2O please help and show your work. My answer for this problem is 11.12g/O2. I have no confidence in my answer.

Chemistry
What volume of carbon monoxide gas (at STP) is needed when 1.35 Moles of oxygen gas react completely in the following equation. 2CO + O2 > 2CO2 please show your work I'm having trouble with Gas Stoichiometry.

ALGEBRA
3x2 = 17x + 6

ALGEBRA
Solve the equations. ((a) ) (2 L)/(5) = 2 L = ((b) ) 4 = (4 M)/4 + 8 M =

ALGEBRA
Consider the following expression. 3(x - 2) - 9(x**2 + 7 x + 4) - 5(x + 8) (a) Simplify the expression.

ALGEBRA
The Greek God Zeus ordered his blacksmith Hephaestus to create a perpetual water-making machine to fill Zeus' mighty chalice. The volume of Zeus' chalice was reported to hold about one hundred and fifty sextillion gallons (that is a fifteen followed by twenty-two zeros...

ALGEBRA
Evaluate the given expressions (to two decimal places). (a) ) log((23.0) (b) ) log_(2) \(128\) (c) ) log_(9) \(1\)

ALGEBRA
Use the definition of logarithm to simplify each expression. (a) )log_(3b) \(3b\) ((b) )log_(8b) \((8b)^6\) (c) )log_(10b) \((10b)^(-13)\)

ALGEBRA
Evaluate the given expressions (to two decimal places). (a) log((23.0) ((b) log_(2) \(128\) text((c) ) log_(9) \(1\)

ALGEBRA
(a) Write the expression in terms of natural logarithms. (Express all logarithmic functions in terms of ln(x) in your answer.) log_(8.5) \(127\) = Give a calculator approximation (correct to four decimal places). log_(8.5) \(127\) ~=

ALGEBRA
Select all statements that are true. (log_b\(A\))/(log_b\(B\))=log_b\(A-B\) (If ) log_1.5\(8\)=x, text( then ) x**(1.5) =8. log\(500\) text( is the exponent on ) 10 text( that gives ) 500. text (In )log_b\(N\), text( the exponent is )N. text( If ) 2log_3\(81\)=8, text( then ) ...

ALGEBRA
Find a simplified value for x by inspection. Do not use a calculator. (a) log5(25) = x (b) log2(16) = x

ALGEBRA
Contract the expressions. That is, use the properties of logarithms to write each expression as a single logarithm with a coefficient of 1. text ((a) ) ln\(3\)-2ln\(4\)+ln\(8\) ((b) ln\(3\)-2ln\(4+8\) (c) )ln\(3\)-2(ln\(4\)+ln\(8\))

ALGEBRA
Solve the equations by finding the exact solution. ln\(x\) - ln\(9\) = 3

ALGEBRA
Solve the equations by finding the exact solution. (a) 1 = x - 1 (B)

ALGEBRA
ln\(e\) = ln\( sqrt(2)/x \) -ln\(e\)

ALGEBRA
(1)/(2) log\(x\) - log\(10000\) = 4

ALGEBRA
Solve the equations by finding the exact solution. ln\(x\) - ln\(9\) = 3

ALGEBRA
A seismograph 300 km from the epicenter of an earthquake recorded a maximum amplitude of 5.4 multiplied by 102 µm. Find this earthquake's magnitude on the Richter scale. (Round your answer to the nearest tenth.)

ALGEBRA
Find the number of decibels for the power of the sound. Round to the nearest decibel. A rock concert, 5.21 multiplied by 10-6 watts/cm2

ALGEBRA
6y + 11x = -9 (a) Solve the equation for y. (Do not use mixed numbers in your answer.) y =

ALGEBRA
Solve the inequality. (Enter INFINITY for infinity and -INFINITY for -infinity as needed.) 9-x>=4 x + 34

ALGEBRA
Solve the inequality. (Enter INFINITY for infinity and -INFINITY for -infinity as needed.) 3<=1 - y

ALGEBRA
Factor the expression by using areas. x^2+2 x-8

ALGEBRA
x2 - 5x + 5 = 0

ALGEBRA
Solve the equation. 2(W + 4) - 3(W + 2) = 0

ALGEBRA
text((a) ) (4 L)/(5) = 3 L = Incorrect: Your answer is incorrect. text((b) ) 3 = (4 M)/4 + 11

ALGEBRA
Let x = 1, y = 3. Find the value of the given capital letter. N = x**2 + 2 xy + y**2 + 3

ALGEBRA
6y + 11x = -9 (a) Solve the equation for y. (Do not use mixed numbers in your answer.) y =

ALGEBRA
If possible, completely factor the expression. (If the polynomial is not factorable using integers, enter PRIME.) x^2-5 x-6

ALGEBRA
If possible, completely factor the expression. (If the polynomial is not factorable using integers, enter PRIME.) x^2+17 x+70

Chemistry
a 3.67L flask is filled with carbon monoxide at 27 degrees C until the pressure is 1.27 atm. Calculate the total pressure after 3.42 moles of carbon dioxide has been added to the flask. (R=0.082 L-atm/K mol)

ALGEBRA
$$ x = \dfrac{1}{{\color{red}2}} y^2 $$

ALGEBRA
Assume f(x) = x2 + 3. Find the functional value requested. f(-7) =

ALGEBRA
Find three ordered pairs that satisfy the equation. y = x + 2

Chemistry
Calculate the partial pressure of helium in a 1.00 L flask that contains equal numbers of moles He, Ne, and Ar at a total pressure of 5.26atm

chemistry
Calculate the partial pressure of propane in a mixture that contains equal numbers of of moles of propane (C3H8) and butane (C4H10) at 20 degrees C and 844 mmHg. (R=0.082 L-atm/K mol)

ALGEBRA
Find three ordered pairs that satisfy the equation. y = 5 x - 4 (0, ), (1, ), (2, )

ALGEBRA
Assume f(x) = x2 + 3. Find the functional value requested. f(-7)

algebra
Find three ordered pairs that satisfy the equation. y = x + 2

Trig.
What is the trigonmetric fact for sin 3.14/8?

Algebra II
if y varies directly as x, if y=80 when x=32, find x if y=100

math
A student invests two sums of money at 3% and 4% interest, receiving a total of $110 in interest after 1 year. Twice as much money is invested at 4% than at 3%. Find the amount invested at each interest rate. Where do I even begin with this?

Geometry
An airplane rises vertically 1000 feet over a horizontal distance of 1 mile. What is the angle of elevation? 1 mile = 5,280 ft

math - integers
5. Robert, a real estate agent, drove 170 kms north from his home. The following day, he drove 54 kilometers south. How far and in what direction did he have to drive to get back home?

math - integers
4. The temperature is falling 3 degrees per hour. How many degrees has it fallen altogether from 12 noon to 12 midnight?

math - integers
3. Arlan and Bryan started driving from the same place. Arlan drove at an average speed of 55 kph, Bryan drove at an average speed of 65 kph. How far apart were the after 2 hours?

math - integers
2. One Saturday morning, Liza jogged 15 blocks from her house and then decided to go back 5 blocks by the same road. How many blocks away is she from her house?

math - integers
1. Freddy lives 34kms south of Makati City while Misael lives 34kms north of Makati City. How far is Freddy's place from Misael's place?

math
what is the length of a diagonal of a square whose side measures 6cm.?

geometry
if I want a ramp with a 30 foot length, and a 5 percent up grade starting at 0, how high will the tall end be?

math
what is the length of a diagonal of a square whose side measures 6cm.?

math
the absolute value of an integer is always greater than the integer. True or False?

math
what is the length of a diagonal of a square whose side measures 6cm.?

geometry
The altitude of an equilateral triangle is 7 square root 3 units long. The length of one side of the triangle is ____ units. 7 14 14 square root 3 7 square root 3 over 2

geometry
Ray OX bisects angle AOC and angle AOX =42 degrees, angle AOC is: 42 degrees 84 degrees 21 degrees 68 degrees

math
Ray OX bisects angle AOC and angle AOX =42 degrees, angle AOC is: 42 degrees 84 degrees 21 degrees 68 degrees

geometry
The altitude of an equilateral triangle is 7 square root 3 units long. The length of one side of the triangle is ____ units. 7 14 14 square root 3 7 square root 3 over 2

math
find the lateral area of a right prism whose altitude measures 20 cm and whose base is a square with a width 7 cm long.

math
a rectangle has a perimeter of 22cm and an area of 30 cubic meter. what are its dimensions?

math
2. the volume of a rectangular solid is 5376 cubic meters, and the base is 24 meters by 16 meters. find the height of the solid.

math
1. find the lateral area of a right prism whose altitude measures 20 cm and whose base is a square with a width 7 cm long.

math
the inner circumference of a ring is 1.2pi cm. the outer circumference of the ring is 2pi cm. find the area of the region bounded by the outer and inner circumference.

math
4. the area of a rectangle is 450 m^2. both the length and width of the rectangle are increased by 10%. what is the area of the new rectangle?

math
1. find the lateral area of a right prism whose altitude measures 20 cm and whose base is a square with a width 7 cm long. 2. the volume of a rectangular solid is 5376 cubic meters, and the base is 24 meters by 16 meters. find the height of the solid. 3. a rectangle has a peri...

math
a square pyramid has an altitude measuring 5 cm and a side of its bases measuring 6 cm. find the lateral area of the pyramid.

Calc
Suppose 4y + xy = 2. Evaluate d^2x/d2^y at the point (-3, 2).

ALGEBRA
Suppose the modified quota is 8.57. Fill in the blanks, and round your answers to two decimal places.

Chemistry
:::F-N:-F::: -H

physics
A bat at rest sends out ultrasonic sound waves at 51.1 and receives them returned from an object moving directly away from it at 22.3 .

Biology
the biome with the fewest seasonal changes is?

physics
A jetliner can fly 5.57 hours on a full load of fuel. Without any wind it flies at a speed of 2.43 x 102 m/s. The plane is to make a round-trip by heading due west for a certain distance, turning around, and then heading due east for the return trip. During the entire flight, ...

physics
An airplane with a speed of 85.1 m/s is climbing upward at an angle of 54.4 ° with respect to the horizontal. When the plane's altitude is 759 m, the pilot releases a package. (a) Calculate the distance along the ground, measured from a point directly beneath the point...

physics
Relative to the ground, a car has a velocity of 14.4 m/s, directed due north. Relative to this car, a truck has a velocity of 24.8 m/s, directed 52.0° north of east. What is the magnitude of the truck's velocity relative to the ground?

physics
A ball is thrown upward at a speed v0 at an angle of 59.0¢ª above the horizontal. It reaches a maximum height of 8.7 m. How high would this ball go if it were thrown straight upward at speed v0?

physics
A golfer hits a shot to a green that is elevated 3.0 m above the point where the ball is struck. The ball leaves the club at a speed of 16.8 m/s at an angle of 30.0¢ª above the horizontal. It rises to its maximum height and then falls down to the green. Ignoring air ...

math
Help. I cannot solve this problem.\ 3(a+4)/9 = 2a - 12

physics
A speedboat starts from rest and accelerates at +1.68 m/s2 for 5.43 s. At the end of this time, the boat continues for an additional 8.16 s with an acceleration of +0.475 m/s2. Following this, the boat accelerates at -0.866 m/s2 for 7.54 s. (a) What is the velocity of the boat...

physics
An automobile starts from rest and accelerates to a final velocity in two stages along a straight road. Each stage occupies the same amount of time. In stage 1, the magnitude of the car's acceleration is 2.03 m/s2. The magnitude of the car's velocity at the end of stag...

physics
In an historical movie, two knights on horseback start from rest 72.6 m apart and ride directly toward each other to do battle. Sir George's acceleration has a magnitude of 0.280 m/s2, while Sir Alfred's has a magnitude of 0.250 m/s2. Relative to Sir George's start...

prealgebra
IM stuck on a question. PLease help. A teacher is giving candy to his periods. First period gets 1/3 and 2nd period gets 1/4 and 3rd period gets 1/3 and finally 4th period gets 22 pieces. How many pieces did each period get? Im stuck!!

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