alejandro

can prepositions come at the end of the sentence

17 years ago

how do i solve systems? example- y=x-2 y=4x+1

14 years ago

Given a line of charge in the x-axis which exists the from a to b with a charge distribution of lambda(x)= Cx(X_o-x)^2, calculate the total electric field at x_o. (X_o, C, a and b are positive; a<b<x_o)

14 years ago

If a +q charge is placed at d in the x-axis (x_0<d), what happens to the total electric field in 1?

14 years ago

Find the total electric force on a +q charge placed at x_0 due to the line charge and the point charge

14 years ago

The growth of a $40 000 investment is shown in the table. Time (years) Value ($) 0 40 000 1 42 600 2 45 369 3 48 318 4 51 459 5 54 803 Use the exponential regression function on your calculator to get the function. Round a to the nearest dollar and b to t...

13 years ago

The mass of a radioactive sample is represented in the graph below. The initial mass of 32 mg decays to 8 mg after 21 hours. 1)What is the half-life of the radioactive sample, in minutes? 2)Solve each equation. a. 4 8x-1 = 8 b. 3^(2x-5) = 1/27x

13 years ago

1.Use the laws of logarithms to express log2 (6) – log2 (3) + 2log2 (8)^1/2 as a single logarithm; then evaluate. 2. For logy = log(0.5x – 3) + log2, express y as a function of x.

13 years ago

The formula for determining the pH of a solution is pH = -log[H+], where [H+] is the hydrogen ion concentration (in M/L). What is the hydrogen ion concentration of an acid with a pH of 2.5?

13 years ago

The 1933 earthquake in Japan registered 8.9 on the Richter scale. a.The 1985 earthquake in Peru registered 7.7 on the Richter scale. How many more times intense was the earthquake in Japan? Round your answer to one decimal place. b. What would the Richter...

13 years ago

LOGARITHMS AND EQUATION SOLVING Solve for x. Round to the nearest hundredth. 2^(x+3) = 17^(x)

13 years ago

Solve log2(x-1) = 5-log2(x+3) for x. base 2.

13 years ago

Sequences 1)A sequence has a first term of 24 and every other term is one half of the previous term. a)Write the first four terms of the sequence. b)Find a recursive formula that defines this sequence. c)Find an explicit formula that defines this sequence...

13 years ago

A sequence has a first term of 24 and every other term is one half of the previous term. Find a recursive formula that defines this sequence. The answer of this question is: an=an-1*1/2 Somebody can help me and let me know why is 1/2 on the formula? pleas...

13 years ago

The sum of the first 10 terms of the geometric sequence -4, 6, -9,..., to the nearest tenth, is; The answer is: For the geometric series a=-4, r=-1.5 or -3/2, n=10. Sn= a(r^n - 1)/r - 1 S10= -4((-1.5)^10 - 1)/-1.5 - 1 S10= 90.7 My question is from where t...

13 years ago

Write the first three terms of the following geometric sequence: tn = 3(1/2)n-1.

13 years ago

Write the first three terms of a geometric sequence that has a first term of a = 7 and a common ratio, r, that satisfies r2 = 9.

13 years ago

Determine the sum of the following geometric series. Round your answers to 4 decimals if necessary. a) 50 over sigma k=1 8(.5)^k-2

13 years ago

The equation of the hyperbola is (x-3)^2/4 - (y+1)^2/16 =-1. What is the range? All I know is this but I am not even sure what I am doing!! My answer: The general form of the equation of a horizontally aligned hyperbola is: (x-h)^2/a^2 - (y-k)^2/b^2 =1. S...

13 years ago

Find the amplitude, period, phase shift, and vertical displacement for: y=7sin5(x-85degrees)-1.2

12 years ago

Children’s meals are being prepared for a large gathering. There is an equal number of chicken, hamburger, and fish meals. Each meal comes with a toy: a ball, a parachute toy, or a Frisbee. There are twice as many balls as Frisbees and an equal number of...

12 years ago

A committee is to be formed to investigate what activities teenagers have available in small communities. The committee is to have 7 members, chosen randomly from interested community members. There are 10 parents, 5 teenagers, and 4 adults without childr...

12 years ago

1.To play a game, a die is rolled to see who plays first. Four players are going to play the game. What is the probability that at least two people roll the same number? Express your answer to the nearest tenth of one percent

12 years ago

1. Your city has 700 000 households, and the probability that a household has exactly one vehicle is 17/23. a) Determine the number of households that can be expected to have exactly one vehicle.

12 years ago

The Mean and the Standard Deviation Last year, golfers at Smith Ranch golf course had a mean score of 41 and a standard deviation of 2 on the first nine holes of the course, and a mean of 38 and a standard deviation of 1.8 on the last nine holes. One afte...

12 years ago

Monique and Jackie start at the same spot and run in the same direction around a quarter mile track. Monique runs at a speed of 14mph, Jackie runs at a speed of 16mph . how long will it take for Jackie to laps monique? (Jackie runs 1 more lap than monique...

12 years ago

mark needs to make 15% sulfuric acid for a lab. how much sulfuric acid, and how much water does he need to use to make ^ liters of 15 % of sulfuric acid ?

12 years ago

A police offer may warn that “speed kills.” In video games, high-speed crashes are common. Suppose a particular scene in a game required the following elements: • a high performance motorcycle must crash into a barrier and be stopped • a small scooter mus...

12 years ago

Changing Momentum The illustrations show two ways of providing impulse to change the momentum of a vehicle. In the top illustration, the vehicle collides with a massive concrete barrier. In the bottom illustration, the vehicle collides with water-filled b...

12 years ago

If loga(x + b) = c, then x is equal to where a is the base. a. x = a^c – b *this is the answer* why??

12 years ago

The number of three digit or four digit even numbers that can be formed from the numbers 2, 3, 5, 7 is A.72 B.120 C.144 D.5040

12 years ago

A security code used to consist of two odd digits, followed by four even digits. To allow more codes to be generated, a new system uses two even digits, followed by any three digits. If repeated digits are allowed, the increase in the number of possible c...

12 years ago

The number of cellular phone customers of a particular telephone company increased by an average of 40%/a from 1994 to 1998. If there were 963 300 customers on January 2, 1998, then the number of customers on January 2, 1994, to the nearest hundred, would...

12 years ago

bus route also throgh balmorhea which is 1/3 of the way from el paso to san antonio abaut how does it take the bu s to get to balmorhea. you can healp this homework is may son I do now undertand.

11 years ago

A spring is compressed a distance of x. When the spring is released, it shoots a marble of mass m vertically upward from ground level. The maximum height reached by the marble is h. The magnitude of the marble’s momentum at the highest point of the marble...

11 years ago

After performing a trick above the rim of a skateboard ramp, a 56 kg skateboarder lands on the ramp 3.5 m above ground level with a downward velocity of 4.0 m/s. Ep = 0.0 J Ground level. Friction in the wheels of the skateboard and air resistance cause a...

11 years ago

A charged glass rod is brought close to an insulated metal rod. The rod is momentarily grounded and then the ground is removed. This method of charging is called charging by ______? There is 3 ways; by friction, by conduction, and by induction. I think is...

11 years ago

M<deg = 5x-4,m<gef =7x-8,m <deh= 9y+5

9 years ago

whats up

17 years ago

im in pre-ap what yo got

17 years ago

i want the answers to my homework

16 years ago

I am looking for help to find out if my answer is right or not! Thanks any way!!

13 years ago

what about the phase shift in radians?

12 years ago

Reiny I just realized "even meter" means not repeated. That help????

12 years ago

Reiny I just realized "even numbers" means not repeated. That help????

12 years ago

Thanks, but what about the odd number?

12 years ago

Steve Looks thanks so much for your time but you are telling me the same questions without answer my question! don't worry!

12 years ago

dont know :( help

12 years ago

3 times 4 equals 12 times two is 24

10 years ago

what are all the answer for each problem?

6 years ago