# Posts by teri

Total # Posts: 122

Math
Consider the following word problem: It took Eric 10 hours to drive to a job interview. On the way home, he was able to increase his average speed by 21 mph and make the return drive in only 7 hours. Find his average speed on the return drive. Step 1 of 3: Complete the ...

statistics
P(-1.86<z<0)=

math
Bill rented a truck for one day. There was a base fee of \$18.95 , and there was an additional charge of .96 cents for each mile driven. Bill had to pay \$135.11 when he returned the truck. For how many miles did he drive the truck?

Math
Assuming that the distribution is normal for weight relative to the ideal and 99% of the male participants scored between (–53.68, 64.64), where did 95% of the values for weight relative to the ideal lie? Round your answer to two decimal places.

social studies
10. Heinz is a recent immigrant from Germany. Which of the following will NOT contribute to his feeling of being American? (Points : 1)

biology
No. Individuals 1, 2, 3, and 5. AND Individuals 5, 6, 9, 10, and 11..... ...give the number of that individual = 5.

biology
Yes. (1) XA Xa (2) Xa Y (3) Xa Xa (4) XA Y (5) XA Xa (6) XA Y (7) XA Xa (8) XA Xa (9) XA X_ (10) Xa Y (11) Xa Y ii) If you chose "yes" above. If Individuals 5 and 6 have another son, what is the probability that the boy will be affected by the disease? 0.5

biology
No. iii) If you chose "no" above. Which set or sets of individuals is inconsistent with autosomal dominant inheritance? Individuals 5, 6, 9, 10, and 11 iv) If you chose "no" above. Can you change one individual from unaffected to affected and make this ...

biology
No.iii) If you chose "no" above. Which set or sets of individuals is inconsistent with autosomal recessive inheritance? Individuals 10, 11, 12, and 13 iv) If you chose "no" above. Can you change one individual from affected to unaffected and make this ...

physics
A car drives along a road section free of curves with speed v0 first through the hollow of a valley (radius of curvature r1) and then over a mountain top (radius of curvature r2). Let the driver have mass m. • What changes in his weight does the driver observe when ...

Math
a man 6ft tall walks at the rate of 5ft/sec toward a streetlight that is 16ft above the ground. At what rate is the length of his shadow changing when he is 10ft from the base of the light?

Math
a light shines from the top of a pole 50ft high. a ball is dropped from the same height from a point 30 ft away from the light. how fast is the ball's shadow moving along the ground 1/2 sec later? (assume the ball falls at a distance of s=16t^2 in t sec)

science
The force which is required to move an object of mass 500g to a distance of 4m

physics
A pulley with diameter D = 27in weighs 80 lb. It is mounted on a diameter d = 2-in axle. A weight of 1000 lb is to be lifted. If the coefficient of friction f = 0.1, what vertical pull force P will be needed?

I need help I don't understand it

Write a real word problem that you could solve by simplifying the expression 50-(2×9)

English
Help in writing a thesis and persuasive essay. I am horrible at doing this and would like someone to help me with it.

English
Do you believe in love at first sight? Romeo and Juliet evidently did. The play covers the time-span of only a few days. In this short period of time, Romeo and Juliet fall in love so passionately that they are willing to die if they cannot be together. craft a thesis about ...

Algebra
Currently, Jodi has a collection of 44 CDs and Veronica has a collection of 22 CDs. Jodi is adding 2 CDs per month to her collection; Veronica plans to add 4 CDs per month. a. Write a system of equations for this situation. Explain your method. b. Graph the system of ...

physics
an 80 kg man rides in a car which makes a turn. he moves along a curve with a radius of 20m at a constant speed of 20m/s. how much centripetal force acts on him?

physics
an 80 kg man rides in a car which makes a turn. he moves along a curve with a radius of 20m at a constant speed of 20m/s. how much centripetal force acts on him?

Medical Coding
the patient received preventive medicine services. the physician's fee is \$150. the patient's copayment is \$10 (of the \$75 fee schedule). the payer reimburses the physician 80% of the \$75 fee schedule.

Chinese
Where would I look to find out how to pronounce the Chinese name Xuelin?

grammar
No, a comma is not needed

CHEMISTRY
At 285mmHg +25 degrees celsius,a gas sample has a volume of 2270ml. what is the final pressure in mmHg at a volume of 1250ml and a temperature od 175 degrees celsius?

college algebra
Annual profit in thousands of dollars is given by the function, P(x) = -.1x2 + 50x - 300, where x is the number of items sold, x ¡Ý 0. describe the meaning of the number -.1 in the formula describe the meaning of the number -300 in the formula

ethics
Would I talk about what I am expected to do in a Amish family as well as how I live with no electricity etc..... This Question is about the recent question of subordinate member and 3 day journal question I asked.

ethics
I have to write a journal entry of a subordinate group member and it has to be a fictional first person account in the life of a subordinate group and it has to describe the events of a three day period. I am confused of how to start this paper out and how you would do it in a...

ethics
how would you start a paper out on a fictional first person account in the life of a subordinate group in the unites states?

How do I find the area bounded by the curver y = x^1/2 + 2, the x-axis, and the lines x = 1 and x = 4

calculus
How do I find the area bounded by the curve y = x^1/2 + 2, the x-axis, and the lines x = 1 and x = 4

algebra
find the possible values of a, if the distance between the points is 5, and the coordinates are (1,1) and (4,a)

algebra 1
solve: the square root of y = 5 + square root of 2 divided by 2

physics
A truck increases its speed from 8 m/s to 28 m/s over a distance of 120 m? How long does this take? Assume that the acceleration is constant

algebra
how do you get the ordered pair (22,-28) from the equation: 2a+b=16?

geometry
Find the area enclosed by the figure where a = 15 ft, b = 45 ft, c = 20 ft, d = 75 ft, and f = 40 ft.

Science
what activity does the cytoplasm do for the diatom

algebra
solve for the variable in the equation 3(-2 - 3x) = -9x - 4

find the domain and the range of the relation age of person 65,36,36,29 books to read 42,37,37,17

english
What does it mean when the teacher says "There is no need to rekey the question(s)? Thanks in advance.

calculus
"use the intermediate value theorem to prove that the curves y=x^2 and y=cosx intersect"

math
what is the total surface area in square meters of a cylinder with a radius of 12m and height of 14m

math
toby the cat is stuck in a tree. billys dad placed a ladder 5 feet from the base of the tree and then leaned the ladder against the tree. the top of the ladder is where toby is sitting. if the ladder makes a 65 degree angle with the ground, how far up the tree is the cat?

math
what is the apothem of a regular hexagon with sides of 16 inches?

disease
Which Endocrine Gland is Involved, or responsible for the conditions tetany and also throtoxicosis?

Algebra
Given the equation: -0.2xsqrd+12x+11 Use the quadratic equation to determine the last day that tickets will be sold. x=1 is the day tickets go on sale.

Algebra
Would you not divide the big number by 100 to get C alone?

Algebra
Using the formula: w=Cr^-2 where C is a constant, and r is the distance that the object is from the center of Earth. W is the weight. 1- Suppose an object is 100lbs when it is at sea level. Find the Value of C that makes the equation true. Sea level is 3,963 miles from the ...

Physical Chemistry
I just would liek to know how to go about calculating it fromt eh equation k= Ae-Ea/RT..

Physical Chemistry
Assuming that the activation energy is about 111kjmol-1, calculate the fractional variation in the rate constant that would result from a temparature of 323.15 K

Algebra2
Simplify, help please sqrt-3 + sqrt27

algebra 2
sorry, i see #5 THANK YOU!

algebra 2
yes to #4 i don't know how they symbols don't come out when i type them one way. Can you help with #5? I didn't get it. Thank you.

algebra 2
are these answers right? 1. ã-121 = iã11 2. -2ã-144 = 2iã144 = 2i*12=24i 3. ã-75 = i=ã75 = iã5sq*3 = 5iã3 4. 5ãã-27 = 5iã27 = 5i...

algebra
simplify ^-6 * ^2 ^ is sq root sign

Algebra 2
yes thank you

Algebra 2
simplify ã15*ã42 _________ ã35

Algebra 2
Yes I got it right! Thanks

Algebra 2
Find the real roots of the eqution 16x2(squared) = 81

science
would radiation levels in natural versus man-made objects be a good science fair project? I can borrow a geiger counter

science

Physics
I assume they refer to Moment of force when it says momenta?

Physics
Ha Ha sorry, momenta.... My typo... I am sure they were dazed, I have been there...

Physics
During a soccer game two players come from the opposite directions and collide when trying to head the ball. They come to rest in midair and fall to the ground. Describe their initial moments?

physics
A pole-vaulter runs toward the launch point with horizontal momentum. Where does the vertical momentum come from as the athlete vaults over the crossbar?

physics
Thanks!!

physics
During a tennis serve, the racket of a tennis player continues forward after it hits the ball. Is momentum conserver in the collision? Explain, defining the system.

physics
The speed of a basketball as it is dribbled is the same when the ball os going toward tthe floor as it is when the ball rises from the floor. A. Is the basketball's change in momentum equal to zero when it hits the floor? B. If not, in which direction is the change in ...

Math
In Lloyd's pocket are 6 coins: 3 dimes, 2 nickels, and 1 penny. If Lloyd randomly takes two coins out of his pocket, what is the probablity that he will take out 11 cents? The book shows the answer 1/5, but my question is wouldn't the number of each coin come into play?

science
A force of 625 N is applied to a hydraulic jack piston that is 0.04 m in diameter. If the piston which supports the load has a diameter of 0.60 m, how much mass can be lifted by the jack? Ignore any difference in height between the pistons

Physics
The speed of a basketball as it is dribbled is the same when the ball os goping toward tthe floor as it is when the ball rises from the floor. A. Is the basketball's change in momentum equal to zero when it hits the floor? B. If not, in which direction is the change in ...

physics
A charge Q is located inside a rectangular box. The electric flux through each of the six surfaces of the box is: Ö1 = +1480 N · m2/C, Ö2 = +2240 N · m2/C, Ö3 = +4220 N · m2/C, Ö4 = -1780 N · m2/C, Ö5 = -3550 N · m2/C...

physics
A small plastic ball with a mass of 7.00 10-3 kg and with a charge of +0.162 µC is suspended from an insulating thread and hangs between the plates of a capacitor (see the drawing). The ball is in equilibrium, with the thread making an angle of 30.0° with respect to ...

physics
Two identical small insulating balls are suspended by separate 0.23-m threads that are attached to a common point on the ceiling. Each ball has a mass of 8.70 10-4 kg. Initially the balls are uncharged and hang straight down. They are then given identical positive charges and...

Biology
I need help. I have searched the web for information of bacterial plate cultures but I cant really find anything. If you could refer me to a good website or explain it to me that would be great. Thank you so much. My question is posted below. Search the web, find, and examine ...

Micro Econ
How can you explain the MR=MC equation as the PROFIT MAXIMIZING output level?

Micro Econ
How can you explain the MR=MC equation as the PROFIT MAXIMIZING output level?

Micro Econ
Thanks, I thought that was it, but it seemed too simple.

Micro Econ
States do not currently collect sales taxes on consumer pruchases on the Internet. Who, consumers or suppliers, benefits from the absence of such taxes? Explain please.

economics
What can't a perfectly competitive market earn economic profits in the long run?

intermediate econ
You buy only apples and bananas. Your budget is such that you can purchase 3 apples and 4 bananas or 9 apples and 2 bananas. Write down the equation for the budget line with bananas on the y-axis. Is that equation unique? I believe the answer is: 2y+9x=4y+3x yes, it is unique ...

Computer Programming Design
I had the same project in my computer design class. Thankfully I got the whole thing right. It is hard to explain in words how it is done.

chemistry
ionic componuds tend to have higher boiling points than covalent compounds . both ammonia NH3 and methane CH4 are covalent compounds but yet the boiling point of ammonia 130C is higher than methane. what might account for this difference please help thank you

elementary algebra
-2+4(x-1)= -7-4x

government
no person is above the law is what principal of the constitution

College History
During the 1960s the United States had become a more open,more tolerant- in a word, freer country. Defend or refute that statement.

College HIstory
Was the US correct to think of the Soviet Union as expansionist and as a threat to American liberty?

History
I think..maybe they would. Im reading about FDR and his new deal. Focusing on the people and states really helped the e comony as a whole.

History
Do you think that the United States will ever revert to a system where the states are more important than the national government?

Ethnic Diversity
and yet again, same college, same class, same subject. when i did a general search everything i found was from 2002 or so. this site helped a lot. thanks everyone.

math
12.42/(17-n)=4.14 what is the value of n

math
12.42/(17-n)=4.14

(light)
an object 5 millimeters high is loccated 15 millimeters in front of a plane mirror. How far from the mirror is the image located?

Math
I think it is 15 hrs, if you take 60x15=900 and then take 60 div 900= 15 hrs. You might want to make sure from someone else but that is what I really do think. Good Luck

Math
Find the decimal equivalent of the mixed number. 8 7/8

Math
You are making rectangular posters 24 in. by 15 in. How many square feet of material will you need for 6 posters?

Math
The circular surface of a table has a diameter of 7 ft. What will cost to have the top refinished if the company charges \$6 per square foot for the refinishing? Use 3.14 for ƒàƒnand round your answer to the nearest cent.

Math
Round to the indicated decimal place. 6.949 tenths

Math
Arrange in order from smallest to largest. 3.07, 3.0712, 3.078, 3.0717, 3.072, 3.071

Math
Find the least common multiple of 12, 18, and 30.

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