# Posts by randy

Total # Posts: 416

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 ...

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.

physical science
23.5 s. Latitude

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 ...

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 ...

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!!

prealgebra
if 9% = 22 what is 100%?

geometry
In the equation y = 3x − 4, the __________.

Trig
The graph of y = 7cosx + 24sinx would be a sinusoid if it were plotted. What would be the first positive value of x at which there is a high point?

life orientation
critically discuss 5 ways in which the human or enrimental problem impacts on the community within south africa

English
What examples does Holden give about how mean the guys at Pency were treating him in chapter 22 of The Catcher in the Rye?

algebra
what is the slope of line that passes through (-3,-8) and (0,6)

geometry
Which of the following are measurements of the sides of a right triangle? Select one of the options below as your answer: A. 3, 4, 5 B. 28, 26, 12 C. 17, 14, 6 D. all of the above

I need help understanding how to do these problems. Thanks! 1) Find the value(s) that would be left out of the range of f. If there is more than one value separate them by commas. Leave fractional answers in fraction form. If there are no values left out of the range respond ...

physics
Find the minimum kinetic energy needed for a 3.7×104-kg rocket to escape the Moon.

physics
Meteorites from Mars Several meteorites found in Antarctica are believed to have come from Mars, including the famous ALH84001 meteorite that some believe contains fossils of ancient life on Mars. Meteorites from Mars are thought to get to Earth by being blasted off the ...

Math (Reflection across y=x line)
Here's a question that I am having trouble with: What is the resulting equation when y=x^3+2x^2 is reflected across the y=x line? I know that I need to switch the y with the x's in the equation, so is the answer they're looking for simply x=y^3+2y^2 or do I need to...

Rational Inequality with Absolute Value
Thanks for you help. I would have expressed my answer in the way you suggested, but I wasn't sure how to type the infinity symbol. I will watch out for the glitch you mentioned. Thanks again, Randy

Rational Inequality with Absolute Value
Here's a question I'm having trouble with: |x|/|x+2|<2 Solve for x. I'm trying to use the case method to solve this problem. Basically I just need confirmation that I did this correctly. I'm doing this through distance learning so I can't ask a teacher ...

Physics
At an amusement park, a swimmer uses a water slide to enter the main pool. If the swimmer starts at rest, slides without friction, and descends through a vertical height of 2.41 m, what is her speed at the bottom of the slide?

financial management
You have been hired by first citizens bank as a financial analyst. One of your first assignments is to analyze the present financial condition of Bradley Stores, Incorporated. You are provided with the following 2009 balance sheet and income statement information for Bradley ...

Physics
When you push a 1.82-kg book resting on a tabletop, it takes 2.30 N to start the book sliding. Once it is sliding, however, it takes only 1.46 N to keep the book moving with constant speed. Q1. What is the coefficient of static friction between the book and the tabletop? Q2. ...

physics
Driving in your car with a constant speed of 12 m/s, you encounter a bump in the road that has a circular cross-section. If the radius of curvature of the bump is 35 m, find the apparent weight of a 63-kg person in your car as you pass over the top of the bump.

physics
When you take your 1000-kg car out for a spin, you go around a corner of radius 57 m with a speed of 11 m/s. The coefficient of static friction between the car and the road is 0.88. Assuming your car doesn't skid, what is the force exerted on it by static friction?

physic
5900

physic
A 120-kg box is loaded into the trunk of a car. If the height of the car's bumper decreases by 20 cm , what is the force constant of its rear suspension? looking for N/m

Physics
To move a large crate across a rough floor, you push on it with a force at an angle of 21 below the horizontal, as shown in the figure. Find the acceleration of the crate if the applied force is 400 , the mass of the crate is 32 and the coefficient of kinetic friction is 0.31.

Math/Algabra
The perimeter of a triangle is 102. side b is twice as long as side A. and side C is three less than side B.. how long is each side.

math-logs
1. logaB = 2 and logbC = 4, evaluate logcA *the lowercase letters are bases ie. log(base a)B 2. solve for x: (log(base 2)x))^3 = log(base 2)x

Kinematics
A car has an acceleration of 2 m/s2. What is its speed 3 seconds after it starts moving?

Math
What is the surface area of a right circular cylinder with base circle of radius of 5m and height of the cylinder 10m?

Prove trig identity
Thank you.

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