# Posts by Jennifer

Total # Posts: 2,447

science, chemistry, biotechnology
"You're creating a standard curve for pyruvate. You need to create a standard with 20 micromoles in a cuvette. How much 100 mM pyruvate would you need?" My understanding is to solve for VOLUME using the equation: micromoles = (mM)(volume in ml) 20 micromoles = (...

math
Mr snider is tiling a floor .The floor is 16 tiles long and 5 toles wide.How many tiles are in the border section?

math
The Hernandez family Is going to the beach. They buy sun block for \$9.99, 5 snacks for \$1.89 each, and 3 beach toys for \$1.49 each. Before they leave, they fill up the car with 13.1 gallons of gasoline at a cost of \$3.70 per gallon

home economics
Job oportunities

CHM 300
Experiment: Redox titration;determination of ascorbic acid by an iodometric back-titration Why is sodium carbonate added to the thiosulfate solution ? why is the water used for preparing the thiosulfate solution boiled ?

algerbra
I need some help please 7/10 / 1/8+4/5*1/2

Math
5/8-x+x+1/2-x+1/8=1 -x and +x cancel 5/8+1/2+1/8-x lcm 5+4+1 - x= /8 10/8-x=1 10/8-1=x Lcm 10-8 /8=x 2/8=x.

Biology
He should have diluted to 300 mL of _solution_ as opposed to just adding 300 mL of water. For B, use this: MV = mass / molar mass (x) (0.330 L) = 25.7 g / 342.2948 g/mol x = 0.2275 M Round to two sig figs is 0.23 M For C, the difference is 0.02 between the 0.23 and 0.25. The ...

understanding motion science
it takes a runner 10 seconds to run 100 yards. the runners speed is ?

Criminal Justice Ethics
Moral Vices

medical billing and coding
a 12 year old boy presents with his father to er due to open wounds to his arm, hand, and upper leg. the injury occurred when the boy fell on a barbed-wire fence at farm while running in the field. Diagnosis: multiple lacerations to the right forearm, right hand, and left ...

Voabulary
How can we hope to a city that is surrounded by such strong walls and has ample supplies of everything it needs?

english
in general on what stage of the writing process should you spend most of your time a. analyzing your audience b .writing your first draft c prewriting d.revising your material

penn foster paralegal
i need help with the following i need the info to be for OHIO LAWS Participants Sally Bright asked her husband, John, to move out temporarily due to marital difficulties. After a brief separation, Sally filed for divorce and received temporary custody of their 14-year-old ...

math
Five points lie in the same plane with no three points on the same line. A circle can be drawn through any three of the five points. What is the total number of different circle that can be drawn such that each circle passes through three of the five points?

Algebra
You are walking away from home at a constant velocity of 5 km per hour. The first landmark you see is your favorite fountain which happens to be 2 km from your house. Which of the following sequences describes the distances you cover at internals of one hour starting when you ...

Geometry
I need a little more explanation please maybe step by step and the answer

statistics
how much sale tax in due for a payment of 993.91

Thanks...that's what I got

What is the monthly payment on a 25-year loan of \$73,700 if the annual interest rate is 10%?

English

English
Shouldn't it say, If you want to feel well rested? Am I wrong?

math
What is the monthly payment on a 25-year loan of \$73,700 if the annual interest rate is 10%?

math
ok, thanks anyway

I need help on this one please

math
A farmer buys a new tractor for \$38,000. He makes a down payment of \$10,000 and finances the balance at 8.5% APR over 48 months. Before making the 12th payment, the farmer decides to pay the remaining balance on the loan. How much interest will the farmer save (use the ...

math
A newlywed couple bought a washer and dryer for \$800. They paid 5% down and then paid 12 monthly payments of \$65.41. Determine the APR of the loan to the nearest tenth of a percent.

math
Thanks...I got it now:) It took me several hours and with a little help from my husband I understand it better.

math
A carpenter spent \$4500 to purchase a table saw , a circular saw, and a panel saw. He paid 5% down and financed the balance with a 30-month fixed installment loan with an APR of 5.0%. Determine the total finance charge and monthly payment for the loan.

math
thanks...I got it!

math
James has set up an ordinary annuity to save for his retirement in 18 years. If his monthly payments are \$225 and the annuity has an annual interest rate of 8% compounded monthly, what will be the value of the annuity when he retires?

math
Thank you:)

math
Barbara knows that she will need to buy a new car in 3 years. The car will cost \$15,000 by then. How much should she invest now at 8%, compounded quarterly, so that she will have enough to buy a new car?

math
Thanks:)

math-help
I got \$674.10

math
John Lee's savings account has a balance of \$4494. After 3 years, what will the amount of interest be at 5% compounded semiannually?

math
thank you!

math
4800/9=533.33x5%=266.665 4800+240=5040.00

math-help
I think the answer is \$5040.00

math
Allan borrowed \$4800 from his father to buy a car. He repaid him after 9 months with interest of 5% per year. Find the total amount he repaid.

math
thank you Ms. Sue

math
All 30 of the students in a mathematics class attended class on Monday. On Tuesday only 22 students attended. What was the percent decrease?

Criminal Justice - Policing
Yes, it is C

Science
Yes, C

physics
A 236 kg block is released at a 4.2 m height as shown. The track is frictionless except for a portion of length 6.2 m . The block travels down the track, hits a spring of force constant k = 1483 N/m . The coefficient of kinetic fric- tion between surface and block over the 6.2...

english
Capitalized name: the name of a specific person or thing, normally beginning with a capital letter and not used with the indefinite article or a modifier, e.g. "York," "Sally," or "Henderson"

Criminal Justice - Policing
Either A or B...I'm thinking A

Survey of Mathematics
Thanks Henry!

Survey of Mathematics
On January 5, Ebony Davis borrowed \$6,500 on a simple interest loan from a lending institution to finance her catering business. She borrows the money at a rate of 8.5% with a term ending on December 9. a. Calculate Ebony's interest on the simple interest loan if she waits...

math
A house costs \$289,000. With a 5% down payment, 2 points due at closing, and the rest financed for 25 years at 6.0% fixed interest, what is the total cost of the house?

Math
Sorry:(

Can you help?

On January 5, Ebony Davis borrowed \$6,500 on a simple interest loan from a lending institution to finance her catering business. She borrows the money at a rate of 8.5% with a term ending on December 9. a. Calculate Ebony's interest on the simple interest loan if she waits...

Can you help?

A house costs \$289,000. With a 5% down payment, 2 points due at closing, and the rest financed for 25 years at 6.0% fixed interest, what is the total cost of the house?

Math
A homeowner installed a new swimming pool for \$8500. He paid 8% down and then paid 36 monthly payments of \$243.07. Determine the APR of the loan to the nearest one-half of a percent.

Can you help?

A homeowner installed a new swimming pool for \$8500. He paid 8% down and then paid 36 monthly payments of \$243.07. Determine the APR of the loan to the nearest one-half of a percent.

Survey of mathematics
On January 5, Ebony Davis borrowed \$6,500 on a simple interest loan from a lending institution to finance her catering business. She borrows the money at a rate of 8.5% with a term ending on December 9. a. Calculate Ebony's interest on the simple interest loan if she waits...

health
40 million

finite math
I got .03%

Survey of Mathematics
Thank you

Survey of Mathematics
A house costs \$289,000. With a 5% down payment, 2 points due at closing, and the rest financed for 25 years at 6.0% fixed interest, what is the total cost of the house?

Survey of mathematics
A homeowner installed a new swimming pool for \$8500. He paid 8% down and then paid 36 monthly payments of \$243.07. Determine the APR of the loan to the nearest one-half of a percent.

Survey of Mathamtics
You want to invest \$7500 for 15 years. The local bank offers a rate of 6.5% compounded monthly. The local credit union offers a rate of 6.75% compounded semiannually. Which is the better option? How did you arrive at this conclusion?

car insurance?
It is D

health
D. all the above

chemistry
Respiration is considered as an exothermic reaction because in respiration oxidation of glucose takes place which produces large amount of heat energy.

Medical
Yep C, I took Medical Office Admin

math
Becky works 40 hours each week and makes \$320. How much does she make per hour? Use a number line to solve this problem. I have a number line is labeled 0-320 but I cant seem to figure this one out.

math
4 times a number added to 7 times the number equals 33

Math
Thanks so much Reiny.

Math
a newspaper carrier has \$1.80 in change. He has two more quarters than dimes but three times as many nickels as quarters. How many coins of each type does he have?

In(x):2,10,___,__,__,-3,__,___,x Out(y:4,28,13,-17,10,_,2.5,148,3x-2 What's the answer !!!! Help!! ASAP!

algebra 1
if y varies inversely with x' find the constant of variation and write an equation if y=1/2 and x=-10

Science
What is the force that results from a 3,000kg car accelerating at 20.00 m/s2? a;) 150.0 N b;) 3,000 N c;) 3,020 N d;) 60,000 N

Algebra
What are the foci of the hyperbola with equation 16y^2-9x^2=144

Finance
Determine the present values if \$5,000 is received in the future (at the end of each indicated time period) in each of the following situations: a. 5% for 10yrs b. 7% for 7yrs c. 9% for 4yrs

social studies
X-2 roller coaster. The first 4th dimension roller coaster in the world.

chemistry
A beaker with 1.40×102mL of an acetic acid buffer with a pH of 5.000 is sitting on a benchtop. The total molarity of acid and conjugate base in this buffer is 0.100 M. A student adds 7.10mL of a 0.370M HCl solution to the beaker. How much will the pH change? The pKa of ...

chemistry
How many grams of dry NH4Cl need to be added to 2.00L of a 0.100M solution of ammonia, NH3, to prepare a buffer solution that has a pH of 8.86? Kb for ammonia is 1.8×10−5.

math
y - 4x = 8 (t- chart)

Chemistry
If 15.0 mL of a 1.5M HCl solution at 22.5 degrees C is mixed with 25.0mL of a 1.5M NaOH solution at 21.5 degrees C that is in a calorimeter, and the final mixed solution temperature ends up at 28.5 degrees C, 1.)what is the balanced equation for this reaction? 2.) what is the ...

Physics
When a compact disk with a 12.0-cm diameter is rotating at 4.2 rad/s, what is (a) the linear speed and (b) the centripetal acceleration of a point on its outer rim?

math
x/4 +2x =1/3

algebra
x - 1 = x + 5 5 15

Math
Four times a number, diminished by 6, yields the same result as twice the same number increased by 4. Find the number.

physics
Assuming the Earth's magnetic field averages about 0.50×10−4 T near Earth's surface, estimate the total energy stored in this field in the first 15km above Earth's surface. The radius of Earth is 6380 km.

ROCKS :D just want to make sure.
Thanks y'all! <3

math help
I am a closed shape made of 6 line segments. I have 2 angles less than a right angle and no right angles. What shape am I? Draw an example in the workspace.

Language Arts
What is the simple predicate in this sentence? Branches buried in the mud are food for the winter. a. are b. buried c. for I thought it was buried, but when I submitted the answer for a pre-test it said it was wrong and I'm a little confused.

physics
You must show your work for full credit.) Calculate the circular speed of an object that orbits the Sun at a distance of 0.2 AU (1 AU = 1.5e+11 meters, the distance between the Earth and the Sun)

Physics
A pendulum bob with a mass of 0.4 kg is released from a position in which the bob is 20 cm above the low point in its swing. What’s the speed of the bob as it passes through the low point in its swing?

Science help ms sue.
Thanks! yall are big help!!

maths
There are 6 terms in an A.P. 6th term is 3 times the second term and 4th term is 4 times the first term. if the 5th term is 15 find the terms

Algebra
36-x^2 in.

Math
If f(x)=-3x+5 and g(x)=9x-2, what is the slope of the graph of the function (f-g)(x)?

Math
The instantaneous rate of change of g(x) is the same for every real value of x. What type of function is g(x)?

Math
If f(x)=x+4 and g(x)=x-4 a)Find an expression for (f*g)(x)? b)what is the minimum value of the function (f*g)(x) I used the * sign for a times symbol.

Math
The tires on a car? or Thew wings of an airplane?

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