Wednesday
July 23, 2014

Posts by J


Total # Posts: 702

Math
31.4+3x2-5 Using the order of operations, simplify the expression above. Which of the following is correct? A. -21 B. -5 C. 5 D. 9

Math
A, B, C, and D are points on a line, and the lengths of the line segments are: AB = 12, BC = 4, CD = 7, and DA = 15. Which of the following is a possible order for the points? A.A,B,C,D B. A,C,D,B C. A,D,C,B D. A,C,B,D

Math
Thank you!

Math
The hypotenuse (side C) of a triangle is 13 inches long. Which of the following pairs of measurements could be correct for the lengths of the other two sides of the triangle? (Note: N + 82 =C2) A. 2.5 inches,4 inches B. 2.5 inches, 6 inches C.5inches, 8inches D.5inches, 12inches

math
Every member of a high school class of 150 students was polled to see whom they would vote for in the election for student body president. The poll results are shown below. Candidate 1 46% Candidate 2 30% Undecided 24% If half of the undecided voters vote for Candidate 1 and t...

business communication'
which is not a commonly used pattern for presenting information in a report A. Compare/contrast B. Journalistic C. Cause/ effect D. positive detail

american gov
which of the following statements is true with respect to the terms that the president and members of congress serve and the timing of their terms A. the us constitution, as originally ratified, limits presidents to two terms B. elections for house members are staggered so tha...

american govenment
MS. Sue I was in between b and d

american govenment
projections that the social security trust fund wil soon be depleted enhance _____ with respect to how older american view health care issues A. Latency B. Salience C. intensity D. Paragmatism

american government
which of the following activities would most likely enhance the cohesiveness if a public interest group. A. increasing the number of members who join via the internet B. Creating new paid positions on the organization's national governance board C. increasing the number of...

trigonometry
how to express radians to degrees, minutes, and seconds? how to express fractions to degrees, minutes, and seconds? through how many radians does the hour hand of a watch turn in 5 hours? 1/2 hour? 10 minutes? 3 days? between 8 am and 5:30 pm?

business
You are interested in buying a new car and Bob let's you borrow one of the new cars on his lot for a week to test drive. You decide you like the car and when you visit Bob to drop off the car, he hands you the following document and a pen: May 1, 201x I promise to pay to t...

Math
Using the term structure in Problem 29 what is the present value of an investment that pays $100 at the end of each of years 1., 2. and 3? If you wanted to value this investment correctly using the annuity formula which discount rate should you use?

pre-algebra
Explain how to write a function rule from the table below. The write a function rule. X 2,4,6 Y 1,0,-1

History
I found a wiki link that says D would be incorrect, can't link it though

History
Oh my -- I didn't even notice that. Here I am looking at what does!! Thank you for pointing that out Ms. Sue :) !! So the answer is ... C?

History
Okay, I would think its B. Alot of the elders work to help support their younger family members

History
Thank you, could you tell me if this one is also correct? Which does not describe India? includes 800 million people living—many in slums—on $2 a day <----------- has an aging workforce with most workers over the age of 50 provides information technology and softw...

History
Economic experts use certain measures, such as GNP and GDP to divide the world into two groups—developed nations and developing nations. Which is not a characteristic of a developing nation? low income attempting to improve the lives of its citizens high literacy rate <...

History
Okay, thank you Writeacher :)

History
life expectancy, education, and income indices Im still confused But ill go with B. The questions wording is a bit off it think...

History
Each year, the United Nations Development Program (UNDP) rates a nation’s development according to the Human Development Index (HDI). The HDI measures the human development in a country based on certain factors. Which is a factor the index uses? birth rate education gros...

Math (functions)
Ah yeah. That's makes sense. Could you help me with one more? I cannot figure it out... Find the first four terms of the sequence represented by the expression: 3n+5

Math (functions)
Ms. Sue or someone please? :/

Math (functions)
I'm really confused on this question. Could you help me? (First time using this site by the way) The question is: use the function rule f(x) = 3x - 2. Fine output: f(1.5) Can you please explain how I get this?

early childhood education
what are the responsibilities that a teacher has to volunteer parents when these parents are invited to participate in learning activities?

early childhood development
an emotional response created by the separation between teachers and parents is the fear that the teachers will replace the parents in their children's affections. describe the conflicting emotions the parent may have that contribute to this fear including two negative emo...

early childhood educastion
what can a teacher do to reinforce the primary relationship between the parent and child and communicate that the teacher does not desire to take the parent's place in the child's life?

math
53.35/5.5 dollars in one hour 9.70 an hour

physics/calc
An anchor weighing 110 lb in water is attached to a chain weighing 2 lb/ft in water. Find the work done to haul the anchor and chain to the surface of the water from a depth of 35 ft.

math
if someone walks 5km in 21 minutes and then 4 km in 39 minutes then whats his average speed

economics
I think that the answer is 2*sqrt(1000)

Chemistry
How does Le Chatelier's principle explain the result you obtained when you add HCL to a suspension of Ca(OH)2 in water? Where the result was, precipitate dissappeared and an increase in temperature resulted.

chemistry
What is the molality of a solution composed of 28.4 g of methanol CH3OH and 250 g of water

trig
Given csc theta= 4, cot theta < 0 Find the exact values of cos theta and tan theta

Math
34

History
Europeans were drawn in to sub-Saharan Africa in their quest for? a. gold and diamonds. b. diamonds and slaves. c. gold and slaves. d. slaves only. I can't find the correct answer. Please help! I believed it was gold and slave but it is not an option.... or is it c?? what ...

History
All are countries that were prominently Catholic in the 1500's and remain so today except? Spain France Italy Netherlands --- From my research, I see that Spain and Italy's main religion is Catholic. So I assume those two are not it. But I am confused on France and Net...

world geography
d

trig
Juana and Diego Gonzales, ages six and four respectively, own a strong and stubborn puppy named Corporal. It is so hard to take Corporal for a walk that they devise a scheme to use two leashes. If Juana pulls with a force of 23 lbs at an angle of 18° and Diego pull...

math words problem
idk

English
It is very general question. I am supposed to write 2,000 words analytical essay but my teacher told me based on my topic I need to write it in journal entry with only intro being 200 words. When I hear "journal entry", it is not the same as an essay. Do you think th...

English
I have hard time understanding this wordings :( Turner thesis* by about a hundred years: the myth of the American west did more than anything else to shape the American character. Civilization by its very nature takes away our freedom, but as Americans we can always find freed...

Geometry
The diagonal of a rectangle are 24 inches long intersect at an angle of 60°.Find the perimeter of the rectangle.Pls help me.

Geometry
The diagonal of a rectangle are 24 inches long intersect at an angle of 60°.Find the perimeter of the rectangle.Pls help me.

Geometry
The diagonal of a rectangle are 24 inches long intersect at an angle of 60°.Find the perimeter of the rectangle.Pls help me.

Geometry
The diagonal of a rectangle are 24 inches long intersect at an angle of 60°.Find the perimeter of the rectangle.Pls help me.

Geometry
The diagonal of a rectangle are 24 inches long intersect at an angle of 60°.Find the perimeter of the rectangle.Pls help me.

Bio
A______ is a tentative, testable explanation for an observed phenomenon. I am confused with hypothesis and theory. But my guess is hypothesis. is this true? or am I wrong?? thanks

Bio
What type of polysaccharide is the main source of fiber in our diet? My guess was cellulose. Is this correct?

Math
There were 7 times as many marbles in Box A as in Box B. After Joyce transferred 294 marbles from Box A to Box B, both boxes had the same number of marbles. How man marbles were there in Box A at first.

math
suppose 3 students change their vote from math to science .describe how the frequency table would change

Math
Its a big gigantic X . Thats the diagram. Its a vertical angle

Math
So im told to find the value of each variable. It's a X. One side equals 3xº and the other side says (80-x)º 3x=80-x 4x=80 x=20 As you can see the value I got was 20. But in another question it tells me to find the measure of the labeled angles. How do I do that?

Algebra HELP!!
Find the measure of each angle. Angle A is half as large as its complement angle B

math
2x-6/3=-2

Chemistry
A solution is made by mixing 90.6 g of magnesium sulfate heptahydrate with 2320.0 g of water. 690.00 mL of the solution has a mass of 745.20 g. 1. What is the molarity of the magnesium sulfate solution? 2. What is the molarity of the magnesium ion? 3. What is the molality of t...

Math
A second hand Furniture store buys sofas with a list price of 9,500. IF the wholesaler offers trade discounts of 10/20/30, find the single equivalent discount.

math
In the standard (x,y) coordinate plane, the graph of (x + 3)2 + (y + 5)2 = 16 is a circle. What is the circumference of the circle, expressed in coordinate units?

Math- Urgent
Thank You so much the link was helpful and I found my answer :-)

Math- Urgent
What are the angle relationships formed when a third line intersects two parallel lines?

Math- Urgent
Yay!! Thank you so much Mrs. Sue you really helped me!

Math- Urgent
Oh. That makes more sense. Thank you. I have four more problems so I will work one more out so you could check it. -11=v/2-6 Add 6 to each side -11+6=v/2-6+6 -5=v/2 -5x2=v v=-10 Is this correct Mrs. Sue?

Math- Urgent
Okay. 3=r/16+4 My teacher told me to cross multiply so: 16x4=64 Then I get lost because I don't know the next step except to subtract three from both sides which gives you r/16=43.

Math- Urgent
Solving Equations 3=r/16+4 What does r equal? Please show all work.

Math- Urgent
Thank You

Math- Urgent
Solving Equations -7+b/15=-6 What does b equal? Please show all work.

Physics
Charge A has a charge of +2C. Charge B has a charge of -3C and is located 1 meter to the right of A. Charge C is located 1 meter to the right of Charge B and has a charge of -1C. If a fourth charge (Charge D) is placed 4 meters to the right of Charge B, how much charge must it...

Calculus
A fence 5 feet tall runs parallel to a tall building at a distance of 2 feet from the building. We want to find the the length of the shortest ladder that will reach from the ground over the fence to the wall of the building. Here are some hints for finding a solution: Use the...

Calculus
Find the positive value of x which satisfies x = 4.3cos(x). Give the answer to six places of accuracy. Remember to calculate the trig functions in radian mode

Calculus
the first two are wrong

Calculus
The equation 10(x-1)(x-2)(x-3) = 1 has three real solutions a<b<c where a = , b = , and c = . Enter your answers with at least six correct digits beyond the decimal point. Hint: Ask what the solutions are if the right hand side is 0 instead of 1, and use Newton's Met...

MATH
A data set has the following points: (0, 2), (4, 1), (6, 0) The slope of the linear regression line is -0.32. Find the y-intercept of the linear regression.

Physics
anyone for 8

physics
Three objects of same heat capacity with temperature T1=200 K, T2=400 K and T3=400 K exchange heat with each other. They are isolated from the rest of the universe. Find the highest possible temperature one of them can reach in kelvin.

language
the - definition of glommy is dismal or depressing is it denotative

pyhsic question for count iblis
iblis got the problem right. for those trying to use jiskha to cheat on the brilliant problems, there was a mistake made in the acceptable answers for this week's question.

Physics
how did you get 1.68?

physics
A car with a mass of 1000kg is travelling at a constant velocity. The force from the engine is 200Newtons. Calculate the acceleration of the car using the formula f=ma. How long will it take this car to travel 0-60 mph (n.b. 1mph = 0.45m/s)

Physics
formula for Q#8 part 1 or answer for α=84∘?

math
find the missing side of the triangle b=2.1 c=29

Physics
A massless spring, with K=425 N/m, is hung vertically with the bottom end of the spring at position Y.i. A 3.50 kg mass is attached to the bottom of the spring and allowed to fall and oscillate. A) How far below Y.i does the mass fall before coming momentarily to rest and reve...

Physics
The planet Tralfamador is a planet of mass M and radius R, and very thin atmosphere (neglect air resistance). A magnetic rail gun has been mounted on the surface of Tralfamador at the North pole. A projectile of mass m is fired from the magnetic rail of gun with an unknown spe...

Physics
Some communication satellites are put into a circular geosynchronous orbit in which the satellite remains above a certain position on the earth's equator as it orbits. Such a satellite would always be in the same position in the sky as seen from the transmitting or receivi...

math
4 o'clock am on Tuesday

math
there is a 20% chance that it will snow on tuesday and a 50% chance that it will snow on Wednesday. what is the probabilty that it will snow on either day?

chemistry
if the amount of radioactive iodine-123 in a sample decreases from .400g to .100g in 26.2 hours, what is the half-life of iodine-123

chemistry
You can look them up in a chart. Try going to engineeringtoolbox website. They have a very useful chart of the specific heat of metals

chemistry
Delta (triangle) E is the change in internal energy. E(final)-E(initial) 25-12= 13 = E(final) 13-25= -12kj= Delta (triangle)E

Quantum Physics
C'mon @cheers!! get some rest :) 5A is not (0,-1), or (0,1/sqrt(K)) or (0,-1/sqrt(N)) xD It must be something very close to it... I think the answer is translating the grover algorithm to a Bloch Sphere and see how it moves around the surface :) At least, that is what 5B,c...

Quantum Physics
wow! Strange behaviour @cheers xD Nevertheless good news for 5C :D Now, only 5A remains behind the Fortress of Solitude...

Quantum Physics
5A is not -1/sqrt(N) or any combinations with minus sign.

Quantum Physics
Ok, 5C is 1/sqrt(K) for both of them. I cannot figure out what is 5A... :(

Quantum Physics
Hi PhysTech, I am reading an article from twistedoakstudios(at)com in /blog/Post2644_grovers-quantum-search-algorithm and doing some calculations... Seems cyclic, in a geometric view.

Quantum Physics
Hi! I have just done 5B: ay=-1, ax=0, so, cheers and PhysTech, it must something about a cycle of the states from m-2, m-1, m, m+1, m+2

physics
A plastic rod has been bent into a circle of radius R = 8.80 cm. It has a charge Q1 = +4.60 pC uniformly distributed along one-quarter of its circumference and a charge Q2 = -6Q1 uniformly distributed along the rest of the circumference. Take V = 0 at infinity. (a) What is the...

NOVACC
A circular loop of wire (radius = 6.0 cm, resistance = 40 miliamps) is placed in a uniform magnetic field that makes and angle of 30 degrees with the plane of the loop. The magnitude of the field changes with time according to B = 30 sin (20t)mT, where t is measured in s. Dete...

Quantum Physics
display.cgi?id=1366086762

math
a cube with 2 in sides is placed on a cube with 3 in sides. then a cube with 1 in sides is placed on the 2 in cube. what is the surface area of the three cube tower?

Chemistry
A coffee cup calorimeter contains 25.0 grams water at 23.8 C A 5.00g sample of an unknown metal at an initial temperature of 78.3 C was dropped into the calorimeter. The final temperature of mixture was 46.3 C. Calculate the specific heat of the metal. The specific heat of ate...

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