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Posts by Chris

Total # Posts: 2,708

Math
how do i solve for t and turn this equation into a sin function d(t)=-8cos(pi(t)/30)+8

Math
For each of the functions below, state the domain and range, the restrictions, the intervals of increasing and decreasing, the roots, y-intercepts, and vertices. a) f(x)=2x(^2)−8 b) f(x)=+√x-2

English 3
A verb must agree with its subject in number

Math Exponetial Function Problem Question?
Thank you so much damon!!

Math Exponetial Function Problem Question?
Im confused if im doing this right Last week there was an earthquake that measured as a magnitude of 3.2 on the Richter scale. Today you hear on the radio that there was a second earthquake that was 27 times more intense than the first. What was the magnitude of the second ...

Math
*86.4 i mean

Math
Are you sure this is right,someone told me since to get magmitude of the second i have to multiply 27 by first earthquake which is 3.2 27(3.2)=84 Im confused

Math
Ok,thanks!

Math
solve for x using logarithms round your answer to four decimal places. a)2^2x+3=80

Math
So i guess my answer is acceptable right :)

Math
For a)

Math
Okay i was wondering because some people told me the answer is log(f(x))=2xlog(3)

Math
I don't if I'm right for these two questions i just need a check if I'm right,if I'm wrong please show me how to get that answer. Rewrite the following exponential functions as logarithmic functions a)f(x)=9^x ans:f(x) Log^-1(xlog(9)) b)f(x)=(7/8)^x ans:log^-1(...

Math Logarithmic Question
Solve for all possible values of x within the domain of the following logarithmic expressions. a)logx+log2=log7−log3

Math
Logrithmetic Problem question Last week there was an earthquake that measured as a magnitude of 3.2 on the Richter scale. Today you hear on the radio that there was a second earthquake that was 27 times more intense than the first. What was the magnitude of the second ...

Math
Exponetial Functions In the following exponential relations, solve for x using logarithms. Round your answers to 4 decimal places. a) 5^3x=65 b) 2^2x+3=80

Math
error i mean f(x)=(2)^x-7

Math
For the following function, state: i. the domain and range ii. the y-intercept, and iii. the horizontal asymptote f(x)=(2)x−7

Math
Describe the Transformations For Each Function a)f(x)=3sin(1/2x+pi/2)+1 b)-1/3cos(2x-pi)-2

Math
The temperature, throughout the year, in a particular town can be graphed using trigonometric functions. On July 24th, the hottest day of the year, the temperature is 27 degrees Celsius. On Jan. 24th, the coldest day of the year, the temperature is -11 degrees Celsius. ...

Trignometric Functions
The temperature, throughout the year, in a particular town can be graphed using trigonometric functions. On July 24th, the hottest day of the year, the temperature is 27 degrees Celsius. On Jan. 24th, the coldest day of the year, the temperature is -11 degrees Celsius. ...

math
You put $1,000 into a savings account today that offers a 5% APR with semi-annual compounding (i.e., two times per year).

math
What is the effective annual rate on the loan? (I.e., what is the interest rate once we take into account compounding?)

math
$400,000 for 30-years at a fixed APR of 3.87%. The loan payments are monthly and interest is compounded monthly.

Math
For a stat class the mean of the midterm is 75 with a standard deviation of 7. What percentage of students scored between 67 and 83

Marketing
We want to advertise a service that we can use the phrase "Save 40! Either % or $ - You Choose. What would the retail amount of that service be if the amount of savings in dollars were 40 and the percent savings were 40? Assume zero cost. List price and sell price would ...

physics
A golf ball is dropped from rest from a height of 8.30 m. It hits the pavement, then bounces back up, rising just 5.00 m before falling back down again. A boy then catches the ball when it is 1.10 m above the pavement. Ignoring air resistance, calculate the total amount of ...

physics
A model rocket blasts off from the ground, rising straight upward with a constant acceleration that has a magnitude of 90.3 m/s2 for 1.75 seconds, at which point its fuel abruptly runs out. Air resistance has no effect on its flight. What maximum altitude (above the ground) ...

physics
A golfer rides in a golf cart at an average speed of 3.93 m/s for 43.3 s. She then gets out of the cart and starts walking at an average speed of 1.13 m/s. For how long (in seconds) must she walk if her average speed for the entire trip, riding and walking, is 1.99 m/s?

physics
A projectile is launched from and returns to ground level, as the figure shows. There is no air resistance. The horizontal range of the projectile is measured to be R= 166 m, and the horizontal component of the launch velocity is v0x = 26.0 m/s. Find the vertical component v0y...

physics
Traveling at a speed of 16.5 m/s, the driver of an automobile suddenly locks the wheels by slamming on the brakes. The coefficient of kinetic friction between the tires and the road is 0.590. What is the speed of the automobile after 1.35 s have elapsed? Ignore the effects of...

Business Math
Mortgage lenders base the mortgage interest rate they offer you on your credit rating. This makes it financially critical to maintain a credit score of 700 or higher. How much more interest would you pay on a $193,000 home if you put 20% down and financed the remaining with a ...

math
if 75 widgets are processed in 3.5 hours by 1 person, how long will it take to process 1650 widgets using 9 people.

algebra
No. 2 alyssa has some coins in her purse consisting of pennies, nickels and dimes. She has 2 more nickels than dimes and thrice as many pennies as nickels. If the total is 0.52 dollars how many coins of each kind does she have.

Math
△ = Triangle If △ABC is similar to △DEF, and angle A is 62 degrees, angle B is 13 degrees, find the measure of angle F. (Also I don't want just the answer, I also want to know how to actually do it so I will know how to do this.)

Physics 1
A car manufacturer claims that you can drive its new vehicle across a hill with a 47 degree slope before the vehicle starts to tip. If the vehicle is 2.0 meter wide, how high is its center of gravity?

Triganometry
To measure a stone face carved on the side of a mountain, two sightings 407 feet from the base of the mountain are taken. If the angle of elevation to the bottom of the face is 36 degrees and the angle of elevation to the top of the face is 67 degrees, what is the height of ...

MATH HELP
What types of numbers are these (Natural, Whole, Integer, Rational, Irrational or Real) 1. 0.020220222 2. 4.4/1.1 3. ãã169 4. -3.222 5. 1.3131313... 6. 5.2/.13 7. 5.1011011101110... 8. 6pi/5pi 9. 45pi/9 10. ã-9 Thanks for the help

Math
A bag contains 9 red marbles, 8 white marbles, and 6 blue marbles. You draw 4 marbles out at random, without replacement. What is the probability that all the marbles are red? What is the probability that exactly two of the marbles are red? The probability that exactly two of ...

Math
A bag contains 9 red marbles, 8 white marbles, and 6 blue marbles. You draw 4 marbles out at random, without replacement. What is the probability that all the marbles are red? 1 The probability that all the marbles are red is...? 2 What is the probability that exactly two of ...

5th grade math
12/3+1/6 =24+1/6 =25/6

math
I'm having trouble setting this one up. The one I'm trying to figure out how to lay out in an equation is Roberto invested some money at 7%, and then invested $5000 more than twice this amount at 9%. His total annual income from the two investments was $3700. How much ...

physics
A force is applied to a 2.9 kg mass and produces 2.7 m/s 2 acceleration. What acceleration would be produced by the same force applied to a 6.2 kg mass? Answer in units of m/s 2 .

Math
were there parenthesis involved in this question?

Math
$3.47

Chemistry
How many grams of ethanol, C2H5OH, can be boiled with 343.0 kJ of heat energy? The molar heat of vaporization of ethanol is 38.6 kJ/mol I'm not sure how I am supposed to set this problem up. Can someone help me, please?

math
the 5 ends up in the ones place (5.781203)

Math
6x2,6x20,and 6x200

mars hill. Math
how do I find the volume of a rectangular box that has a base of 50 in.² and the height of 12 inches

physics
a truck beneath an airplane that is moving 180 km/h at an angle of 47 to the ground. How fast must the truck travelto stay beneath the airplane? Answer in units of km/h.

math
y= 3x+ 9

Federal polytechnic, oko
What force would be required to accelerate an electron mass of 0.009kg from rest to a velocity of 104m/s in 10 seconds.

Physics
A tightrope walker wonders if her rope is safe. Her mass is 60 kg and the length of the rope is about 20 m. The rope will break if its tension exceeds 7500 N. What is the smallest angle at which the rope can bend up from the horizontal on either side of her to avoid breaking? ...

Math
It has four side and all opposite side are parallel and has no right angles

BUSINESS MATH
8 is what percent of 69? (Round to the nearest hundredth percent as needed.

Language Arts
@Ms.Sue can you help me with number 3

Language Arts
Thanks

Language Arts
@Ms.Sue

Language Arts
2. Which of the following best describes the effect of beginning "Always to remember" with a description of the memorial competition? A. this technique keeps the essay from being autobiography or fiction. B. this tactic gives background for the importance of lin'...

S.S
Thanks Ms.Sue (:

S.S
Which of the following would describe how loyalists land was redistributed in Georgia? A. land was given to the indians who helped the patriots. B. land was given in bounty grants to soldiers for their advice. C. a lottery was held to grant land. D. land was confiscated to ...

Chemistry
a) CuO(s) + C(s) => Cu(s) + CO(g) b) 2 NaOH (conc) + Pb(CH3COO)2(aq) = Pb(OH)2(s) + 2 C2H3NaO2(l)

Algebra
What is a Square with p q AR

math
Peter sold watches ($7) and necklaces ($4) at a flea market. Total sales were $300. People bought 3 times as many watches as necklaces. How many of each did Peter sell? What were the total dollar sales of each?

chemistry
Calculate the volume, in milliliters, of a 0.290 M LiOH solution that will completely neutralize each of the following: a. 40.0 mL of a 0.130 M H3PO4 solution b. 24.5 mL of a 0.535 M H2SO4 solution

Math
Of rug has a length that is two times its width. The area of the rug is 8 square feet. What is the length And width of the rug?

Civics
You begin traveling south from Madison,Wisconsin.Which of the following capital cities would you reach first.

forensic science
if handwriting evidence was not yet considered to be considered to be scientific evidence at the time of united states v. starzecypzel,how was it admissible as reliable evidence

Finance/370
How do i deteremine the internal rate of return of a problem. Lets say a company is justt starting and they need an initial outlay of $105,000 and will generate a net cash inflows of 19,000 per year for 9 years. A) If the discount rate is 8 % then what is the NPR? (I ...

chemistry
What is the mass of a liquid that has q volume of 2.5L and a density of 3g/cm cubbed? I got 7.5, but I am unsure if I should have converted L to mL

Physics
You shoot an arrow straight ahead; it leaves your bow moving parallel to the ground. You find it embedded in the ground 50m away from where you shot it. It makes an 82 degree angle with the level ground , reflecting the direction it was traveling at the time it hit. How fast ...

Lifespan Development
What are some theories, models, and constructs that might influence my perspective on facilitating a counseling session/encounter.

english
Most of the time, the ____ struggles against the main character in a story. A) protagonist B) antagonist C) flat character D) round character

Math
are you ok

calculus ab
Use a graphing utility to graph the function and visually estimate the linits h(x)= -x^2 + 4x

Physics
A small turtle moves at a speed of 186 furlongs per fortnight. Find the speed of the turtle in centimeters per second. Note: 1 furlong = 220 yards, 1 yard = .9144 meters, and 1 fortnight = 14 days.

history
Power of pope over church

Physics
An athlete swims from the North end to the South end of a 50.0 Meter pool in 20.0 seconds, and makes the return trip to the starting point in 20.0s A. What is the average velocity for the first half of the swim B.What is the average velocity for the seconds half of the swim C...

english
which are state-of-being verbs in following sentences: "While he was biking this morning, Zach had seen a small accident. A huge SUV ran a red light, and the oncoming sedan was unable to stop. Driving on Portland’s narrow streets was dangerous and expensive. The ...

L.O.
Bad road use has a direct impact on the emotional

L.O.
What are the bad road use on the physical community?

MLA citation
my test results said D was wrong

Chemistry
So my answer should be something around: When writing the name of an ionic compound containing a cation with more than one oxidation state, use the cation name and write the charge of the cation in roman numerals. For example, when writing out FeSO4, it would come out as iron...

Chemistry
Explain the basic format and the steps needed to name an ionic compound composed of a cation that has a possibility of existing in more than one oxidation state. Is this right: There are four prefixes used when naming ionic compounds: per__ate, -ate, -ite, and hypo__ite. ...

Business
10 to 20 answer please

fundamentals of law for health information
what risks does the hospital assume when it takes a case to trial?

math
A textbook search committee is considering 20 books for possible adoption. The committee has decided to select 5 of the 20 for future consideration. In how many ways can it do so?

math
what is 3.4 as a whole number?

math
i had a quiz and that answer wasn't one of them the question was if ryan ran 3.4 miles in 30 minutes at the gym. if he goes to the gym each day for a week and runs the same distance each time how many miles will ryan have run?? the only multiple choice is 23.4 34 3.41

math
thats what i did but it is wrong i got 23.8

math
if a kid ran 3.4 miles in 30 minutes at the gym and he goes everyday for a week at the same distance how many miles will he have run?

Chem
Consider the reaction: A(g)⇌2B(g) Find the equilibrium partial pressures of A and B for each of the different values of Kp. Assume that the initial partial pressure of B in each case is 1.0 atm and that the initial partial pressure of A is 0.0 atm. Make any appropriate ...

Science 6th Grade Please Help!
You are right jessica

Chemistry
From your Dilution Data in the procedure 3 and 4, calculate the initial concentration of Fe3+ (aq) ion for tubes 2-5. 1. Add 5.00ml of 1.00 x10^-3 M KSCN to all tubes. 2. To test tube 1 add 5 ml of 0.200M Fe(NO3)3. 3. Measure 8.00ml of 0.200M Fe(NO3)3 into 25.0ml cylinder. ...

Physics
If the current in a wire of a CD player is 1.10 mA, how long would it take for 3.40 C of charge to pass a point in this wire?physi

Physics
Two electrostatic point charges of +60.0 μC and +57.0 μC exert a repulsive force on each other of 161 N. What is the distance between the two charges? The value of the Coulomb constant is 8.98755 × 109 N · m2/C2. Answer in units of m.

5th grade math
Jeff put small box that is 12 inches long, 8 inches wide, and 4 inches tall inside a box that's 20 inches long, 15 inches wide, and 9 inches high. How much space is left in the larger box?

Physics
An X-ray tube used for cancer therapy oper- ates at 8.8 MV with a beam current of 19 mA striking a metal target. Calculate the power of this beam.

Physics
A net charge of 73 mC passes through the cross-sectional area of a wire in 9 s . What is the current in the wire? The fun- damental charge is 1.602 × 10−19 C.

Calculus
Find the area of the largest rectangle that fits inside a semicircle of radius 10 (one side of the rectangle is along the diameter of the semicircle).

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