Mat

We have a problem in AP Physics that we just can't get. It has to do with vector addition. The problem is: If aA+bB+C=0, find the magnitudes of a and b. *A, B, and C are vectors* *i and j are unite vectors* A=(6.0i-8.0j)units B=(-8.0i+3.0j)units C=(26.0i-...

18 years ago

Which of the following contributed most to the development of religious toleration in the British colonies? (A) The stand of Roger Williams in defense of liberty of conscience (B) The Puritan guarantee of religious freedom to settlers in the Massachusetts...

17 years ago

how do i figure this out step by step? 3x-7=5x+13

17 years ago

How do you calculate the thermal amplitude

16 years ago

Real GDP equaled $9,191 billion in 2000 and $9,215 billion in 2001. Both figures are adjusted for changes in the value of the dollar using a chained price index with a base year of 1996. Which of the following could explain the increase in real GDP in 200...

16 years ago

I am a non-metal. I belong to the Halogen family. I am not the largest or smallest atom in my group. My first ionization energy is greater than that of iodine. I am not a gas at room temperature. What element am I?

16 years ago

I am a metal. I am a transition metal. I have the smallest atomic radius in my group. I have 6 valence electrons. What element am I?

16 years ago

I am a main group element. I have 3 p-orbital electrons in my valence shell. I have a lower first ionization energy than arsenic. I am not the largest atom in my group. What element am I?

16 years ago

I am in the p-block of the Periodic Table. My melting point is the highest in my period (ignore tansition metals). I am not the smallest atom in my group. My first ionization energy is greater than that of germanium. What element am I?

16 years ago

Observations are taken on sales of a certain mountain bike in 30 sporting goods stores. The regression model was Y = total sales (thousands of dollars), X1 = display floor space (square meters), X2 = competitors’ advertising expenditures (thousands of dol...

15 years ago

If 18.0g of CO2 is produced in the reaction of C2H2 with O2 to form CO2 and H2O how many grams of H2Oare produced

14 years ago

An investment will pay $100 at the end of each of the next 3 years, $400 at the end of Year 4, $600 at the end of Year 5, and $700 at the end of Year 6. If other investments of equal risk earn 8% annually, what is its present value? What is its future val...

14 years ago

Can someone help please: What are 2 events that ended the Progressive era?

14 years ago

2= squared x2+y2+z2+36 then square rooted and then the number must be rational. I need x y and z. I already used 10 8 and 5

13 years ago

A diver runs and dives off the end of a spring board that is 0.9 meters above the surface of the water. As she takes off from the diving board, her velocity is 5.2 m/s directed 36° above horizontal calculate: a) the time she is in the air s b) the distanc...

12 years ago

N=0.04x-78.34 determine the year in which there were 1.9million inmates

12 years ago

A 2.3 kg block slides down a 25° inclined plane with constant acceleration. The block starts from rest at the top. At the bottom, its velocity is 0.65 m/s. The incline is 1.6 m long. What is the coefficient of friction?

12 years ago

Two identical positive charges exert a repulsive force of 7.0 10-9 N when separated by a distance of 3.2 10-10 m. Calculate the charge of each. _C

12 years ago

Find the derivative of the following function: f(x)= 10x-3/5x +6x

12 years ago

Find the derivative of the following function f(x)=(x-3/2x+3)^2

12 years ago

A manufacturer wishes to produce the most economical packaging for detergent. The containers need to hold 25litres and must be cylindrical in shape. What dimensions will ensure that the least amount of plastic is used to create the containers. (Note: the...

12 years ago

Find the area of the region between the parabola 4y = x^2 and the line 3x + 4 y = 4

12 years ago

A particle moves in a straight line under a force such that its displacement s(t), in metres, at time t seconds, is given by s(t) = t3 − 5t2 + 3t +15 Find the time at which the particle is at rest?

12 years ago

Give a geometric description (including a sketch) of the integral 0∫3 2x − 3x dx .

12 years ago

Read the following paragraphs and write a topic sentence that expresses the main idea of each. For example, if it is a sport, then some people wonder why cheerleaders must also be concerned with the neatness and uniformity of their appearance. In addition...

12 years ago

I have never been a good problem solver. I am not direct enough to be successful," the client complained. "You do not see yourself as a direct problem solver?" responded the therapist. This conversation is typical of _______________. A. dialectical therap...

12 years ago

One of the interesting aspects of family therapy is the "system" or roles which are assumed by family members. A good example would be _______________. A. the father sometimes comes home late B. the mother has difficulty making decisions C. the teenage bo...

12 years ago

Unfortunately I have a D in the class, but I am an A student." When there is a difference between what I believe and what I do, A. cognitive dissonance will develop. B. social cognition will be less decisive. C. central route processing will be decreased....

12 years ago

Do you think John forgets the time of his appointments? Perhaps he is always late because it makes him feel powerful or, maybe he is just disorganized?" These questions are being asked in order to A. determine whether John's tardiness is dispositional or...

12 years ago

A fleet of large trucks arrived in the mall parking lot after Janelle parked her car. When she returned to the lot she could not find her small vehicle in the maze of huge trucks. It took her at least half an hour of searching before she located her car....

12 years ago

What is the apparent weight of a 25kg lead block submerged in the dead sea? (density of dead sea is 1240kg/m3)

12 years ago

Find the real and imaginary parts of the following complex numbers: (i) 1.5e^jπ/4 (ii) je^1.2 + j^2 e

11 years ago

A school booster club is selling T-shirts. The silk screening company is selling shirts to the boosters for $3 each, plus a one-time fee of $150 to cover supply costs. If the boosters want to make at least $300 in profits and they sell a shirt for $12, ho...

11 years ago

Michelle will divide 36 herbal tea bags and 48 mint tea bags among gift boxes. Each gift box will have the same number of herbal tea bags and the same number of mint tea bags. What is the greatest number of gift boxes Michelle can make?

11 years ago

This was on my test and have a few more question that is from my test. 18.The Sum of five unequal natural numbers is 90. The second largest of these five numbers can be at the most? A.19 B.41(41 is the right answer) C.44 D.43 E.42 please show work. 22.In...

11 years ago

1.A father can do a job in a certain number of hours. His son takes twice as long to do the job. Working together, they can do the job in 6 hours. How many hours does it take the father to do the job alone? A.9 B.18 C.12 D.10 3.David is 5 years older than...

11 years ago

How many electrons are in p orbitals in an atom of oxygen? I answered 8 and 6 but it's wrong. Can anyone pls help.

10 years ago

By mass a certain material is 75% sand and another is 30% sand. How many tonnes of each must be mixed in order to have 250 tonnes of material that is 50% sand?

10 years ago

Given f (t) = t^3 −3 , find f(a - 1).

10 years ago

The efficiency e of a gasoline engine as a function of its compression ratio r is given by e =1− r1−γ , where γ is a constant. Find γ for e = 0.55 and r = 7.5.

10 years ago

Good afternoon, I need a bit of help. So ive got my first derivative which is 6x^2-6x-12 and the stationary points ive found are x=-1 and x=2 at which points the value of the derivative is zero. So im attempting to classify the points. From my derivative...

9 years ago

A closed box is to be made in the shape of a cubiod, of height h cm and with a square base that has sides of length x cm. Its volume V is required to be 500 cm^3. A) write an expression for the V (volume)in terms of h and x. B)Write an expression for the...

9 years ago

Long shot but does anyone have experience of using Maxima (maths program) for finding stationary points. My user guide offers no help, ive tried to manipulate the following derivative to find the stationary points however its not proving helpful. (9*x^6+2...

9 years ago

Good morning, Just working through an example but ive gotten stuck and need some help. So find the least residue of 8^123 Mod 61 So 8^60 = 1 (mod 61) 8^120 = (8^60)^2 = 1^2 = 1 (mod 61) 123 = 2*60+3 So 8^2*60+3 = (8^60)^2 x 8^3 = 1^2 x 8^3 = 1 x 512 = 512...

9 years ago

A 0.45-kg soccer ball is kicked at an angle θ above the ground with initial speed vi. Determine the height of the ball as a function of the horizontal distance d it travels down the field.

8 years ago

A ballistic pendulum is a device for measuring bullet speeds. One of the simplest versions consists of a block of wood hanging from two long cords. (Two cords are used so that the bottom face of the block remains parallel to the floor as the block swings...

8 years ago

Show that -3 is a multiplicative inverse of 17 modulo 26.

8 years ago

I would like to write vector expressions and determine the andle the slipe makes with the horizontal for the following. a 2kg block is on a slope and is about to slip down, the coefficient of static friction is 0.4. so far I have W=2g F=Fi N=Nj and tan-1...

8 years ago

Need a bit of help solving the following equations. sqrt(5/8-(sqrt(5)/8))LH+cos (43pi/180)RH = 0 and 1/4(1+sqrt(5)LH+sin(43pi/180)RH-2g=0 What is the best way to start when trying to combine these equations? Thanks

8 years ago

How do I work out the second quadrant parametrisation of 5x^2+16y^2=45. I have x=3 cos t, y=3sqrt5/4 sin t so far. Thanks

8 years ago

Good morning, I have this question: the matrix A = 0 6 4 12 i) show that it is invertable. ii)Find the equation of the image f(c) of the unit circle c in the form. ax^2+bxy+cy^2=d iii)Calculate the area enclosed by f(c). ---------------------------------...

8 years ago

Good morning. Quick question. dr/dt=K/r^2 When the radius is 3cm, the radius is increasing at a rate of 5/36pi. Use this fact to find the constant K. I know that the general form of these growth factors is e^kt but im not sure where the rate and the origi...

8 years ago

Let y = sinx + ztanx,where z is a function of x. If (dy/dx)= z+ cosx, show that (d^2y/dx^2) =-y. I really have no idea how to do this. Please show me

8 years ago

f(sqrt 3-sqrt 2)=x^2-3x+4

8 years ago

What type of atomic orbital has 2 nodal planes?? I got 3d, but would it be just d since nodal planes = angular momentum #??

7 years ago

The mean amount of money withdrawn from a bank ATM on a particular day was $120. If Lauren withdrew $80 and her z-score was -3.2, what was the standard deviation for the amount withdrawn that day?

7 years ago

Hi everyone. Im not sure how to draw PLA and PAL Circuit for the following Boolean expression "F=A+~B+D". can someone please provide me with drawing below if possible is not then kindly email me on "mattkazma@gmail. com". please let me leave me response i...

7 years ago

Hi everyone. Im not sure how to draw PLA and PAL Circuit for the following simplified Boolean expression "F=A+~B+D" its a 4 input circuit. can someone please provide me with drawing below if possible is not then kindly email me on "mattkazma@gmail com". p...

7 years ago

what products result from mixing aqueous solutions Cu(C2H3O2)2(aq) and Rb3PO4(aq)?

7 years ago

What kind of reaction is for the following equation: CO2 + CaCO3 + H2O = Ca(HCO3)2 (ie is it a DDR, SDR, Synthesis, etc)

6 years ago

I’m a bit stuck on this simple question. So the values I’ve got: Propellant = 100,000 kg Structure = 10,000 kg Payload = 5000 kg So I worked out: Propellant fraction is 87% Payload fraction is 4.3% Now I need to find “Recall the relationship between speci...

5 years ago

1. Two masses m1 and m2 exert a gravitational force of 12 N onto each other when they are 6 m apart. What will the gravitational force be if the masses are moved closer to be 3 m apart? A. 6 N B. 3 N C. 48 N D. 24 N 2. Two charges q1 and q2exert a 90 N el...

4 years ago

How to solve this 4x – 6 + 3(2 – x) = 2x – (x – 4

3 years ago

Aluminum is produced from bauxte ore and can be used for many things. Which option describes a common production use of aluminum?

2 years ago

What are the common uses of the mineral quartz?

2 years ago

What is the major cause of the greenhouse effect?

2 years ago

Thanks Emily Teacher!

17 years ago

Which of the following could explain the increase in real GDP in 2001? (a) The price level increased. (b) The number of new homes built decreased. (c) Inventories increased. (d) Imports increased.

16 years ago

(a) The price level increased. (b) The number of new homes built decreased. (c) Inventories increased. (d) Imports increased.

16 years ago

1.43,1.27

15 years ago

use the equation v=v0+at substitute the numbers in to find t

15 years ago

A small laboratory burner consisting of a vertical metal tube connected to a gas source and producing a very hot flame from a mixture of gas and air let in through adjustable holes at the base. It is mainly used to heat chemicals.

14 years ago

Xbox stuff, PS3 stuff, cool shades, and of course cash.

12 years ago

Problem 5 please?

12 years ago

Answer for Question 5 please?

12 years ago

Thanks Sat, but can you write your reasoning behind the answer?

12 years ago

Hey guys, what about #4: Obtain a symbolic expression for the total elongation of the bar, δ. Anybody?

12 years ago

Help with Problem 3b please!

12 years ago

There are no parentheses, that's what is confusing me also. The questions is exactly as written above.

12 years ago

There's more paragraphs, I think the main idea is Cheerleaders.

12 years ago

people question whether cheerleading is a sport.

12 years ago

Ok, I need help with this one also. Some writers like to brainstorm their ideas on a scrap paper before sitting down to write. Others are less intimidated by a blank computer screen or piece of paper, and prefer to dive headfirst into a project. Many stud...

12 years ago

well then it should be A right?

12 years ago

Look up the definitions and search for examples of these types of numbers. Here are some examples that might help get you started. real = 2 rational = 1/3 (although it goes .3333, it repeats indicating rationlaity) irrationsl = π (3.1415... no matter how...

12 years ago

The number is 8.23 You just have to think about it like this if it's rounded to 8.2 either the first two numbers are 8.2 or the 8.1 since it has to round to .2 the numbers before it can be bewteen .0 - .4 to make it stay .2 or .5 -.9. Now at the same time...

12 years ago

That's what they call dms and it's just another set of units for angles. To convert you can do the math or you can look up a calculator to convert the seconds and minutes back to a decimal in degrees.

12 years ago

v=1.67

11 years ago

Anyone got the answer?

10 years ago

In order to find the mean, you must add all and then divide by the amount. In this case, you add (14+5+6+0+6+9+6+15)/8 = 7.6

10 years ago

0.08(X) + 0.06(26000-X) = 1800 Distribute 0.08(X) + 1560 - 0.06(X) = 1800 Re-arrange 0.08(X) - 0.06(X) = 240 Subtract Like-terms 0.02(X) = 240 Divide X = 12000 Confirm Results 12000(0.08) = 960 14000(0.06) = 840 960 + 840 = 1800

10 years ago

2K^4 * (3K)^2 becomes 2K^4 * 9K^2 because the parenthesis must be removed before doing your multiplication. So the (3K)^2 goes through (3^2)(k^2) to become 9k^2. From there the constants multiply together and the exponents add together, giving you 18K^6.

10 years ago

(a) 6 combinations of Red/Black and 3 combinations of Red/Red (b) There is a 6/18 chance for a Black Checker being drawn so 1/3. There is a 12/18 chance for a Red Checker being drawn so 2/3. (If you draw a black first then the chance of drawing a red drop...

10 years ago

Thanks Steve.

9 years ago

1/3

8 years ago

Dont worry I figured out my own stupidity! Sorry everyone.

8 years ago

Just my variables, its to find tension in two strings. I made them LH and RH in my drawings. I could have easily put T1 and T2 come to think of it...

8 years ago

Thanks steve, out of interest ive gotten a negative value for one. Since im looking for the tension in L and R strings. That doesnt seem right in which case ive made a mistake in getting to this point.

8 years ago

Sorry its angle and slope not andle and slipe...

8 years ago

Hang on ive just realized I need to use the equation for the volume of a sphere first right? v=4/3pir^3 to find a value to plug into my previous equation. Am I on the right track?

8 years ago

Are those right???

7 years ago

.79 lbs

7 years ago

btw its 4 input circuit. ty

7 years ago

Thanks for the answer

6 years ago

bump!

6 years ago

With the coldest temperature on the moon you can use [Earth coldest temp] = ([Moon coldest temp]/2) - 57

6 years ago

let x be number of weeks total = 55 + 5x if you want to find the total for $100, isolate for the variable x 100 = 55 + 5x (subtract 55 from both sides) 45 = 5x (divide both sides by 5 to isolate x) 9 = x therefore it will take 9 weeks to get $100 and you...

6 years ago

use the same basic equation i replied with for this one but use this set if numbers. its almost exactly the same question.

6 years ago

Sn atomic mass = 118.71 Oxygen atomic mass = 16.00 Number of tin atoms = 1 Number of oxygen atoms = 2 Total mass = (118.71*1)+(16.00*2) = 150.71 (118.71/150.71)*100 = percentage of tin composition in SnO2 ((16.00*2))/150.71)*100 = percentage of oxygen com...

6 years ago

Sue scored a total of 35 points in two games. She scored 6 times as many points in the second game as in the first. How many more points did she score in the second game?

5 years ago

In Sean’s fish tank, there are 6 times as many goldfish as guppies. There are a total of 21 fish in the tank. How many more goldfish are there than guppies?

5 years ago

1/5

3 years ago

What are common uses of the miners quartz?

2 years ago