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Mohammed J.

Biology

11 months, 3 weeks ago

antigenic substances can be composed of;

Mohammed J.

Biology

11 months, 3 weeks ago

antigen substance can be composed of

Julyanne S.

Intro Stats / AP Statistics

11 months, 3 weeks ago

The temperature in a certain location was recorded each day for two months. The mean temperature was 62.4°F with a standard deviation of 3.1°F. What can you determine about these data by using Chebyshev’s Inequality with K=2?

Aja J.

Algebra

11 months, 3 weeks ago

Movie tickets for 2 adults and 3 children cost $54.50. Tickets for the same movie cost $31.50 for 1 adult and 2 children. (a) Let a represent the cost of a ticket for an adult and c represent the cost of a ticket for a child. Write a system of equations that can be used to find a and c. 2a + 3c = 54.50 a + 2c = 31.50 2 · 54.50 + 3 · 54.50 = a 31.50 + 2 · 31.50 = c 3a + 2c = 54.50 2a + c = 31.50 a + 2c = 54.50 2a + 3c = 31.50 a + c = 54.50 a + c = 31.50 (b) What is the total cost of tickets for 1 adult ticket and 1 child ticket? $

Aja J.

Algebra

11 months, 3 weeks ago

A cell phone factory has a cost of production C(x) = 175x + 20,000 and a revenue function R(x) = 200x. What is the break-even point?

Savannah I.

Calculus 1 / AB

11 months, 3 weeks ago

integrate x^2 +7x +1 / (x^2+1)^2 dx

Hhh H.

Physics 101 Mechanics

11 months, 3 weeks ago

At highway speeds, a particular automobile is capable of an acceleration of about 4 m/s2. At this rate, how long does it take to accelerate from 55 km/h to 119 km/h?

Hhh H.

Physics 101 Mechanics

11 months, 3 weeks ago

A red car and green car move toward each other in adjacent lanes and parallel to an x-axis At time t = 0, the red car is at xr = 0 and the green car is at xg = 220 m If the red car travels at a constant velocity of 20 km/h, the cars will pass each other at x = 44.5 m If the red car travels at a constant velocity of 40 km/h, the cars will pass each other at x = 76.6 m In both scenarios, the green car starts out with the same initial velocity and maintains the same constant acceleration. What is the initial velocity of the green car? What is the acceleration of the green car?

Hhh H.

Physics 101 Mechanics

11 months, 3 weeks ago

A red car and green car move toward each other in adjacent lanes and parallel to an x-axis At time t = 0, the red car is at xr = 0 and the green car is at xg = 220 m If the red car travels at a constant velocity of 20 km/h, the cars will pass each other at x = 44.5 m If the red car travels at a constant velocity of 40 km/h, the cars will pass each other at x = 76.6 m In both scenarios, the green car starts out with the same initial velocity and maintains the same constant acceleration. What is the initial velocity of the green car? What is the acceleration of the green car?

Hhh H.

Physics 101 Mechanics

11 months, 3 weeks ago

You are arguing over a cell phone while trailing an unmarked police car by 25 m; both your car and the police car are traveling at 110 km/h. Your argument diverts your attention from the police car for 2.0 s At the beginning of that 2.0 s, the police officer begins braking suddenly at 5.0 m/s2. What is the separation between the two cars when your attention finally returns? When your attention returns, you also brake at 5.0 m/s2. What is your speed when you hit the police car?

Katty P.

Algebra

11 months, 3 weeks ago

3x+5

Katty P.

Algebra

11 months, 3 weeks ago

Find the measure of each angle. m?QRT= º m?TRS= º

Katty P.

Algebra

11 months, 3 weeks ago

Find the measure of each angle. m?QRT= º m?TRS= º

Hhh H.

Physics 101 Mechanics

11 months, 3 weeks ago

A rocket rises vertically, from rest, with an acceleration of 3.2 m/s2 until it runs out of fuel at an altitude of 775 m. At what height above the ground is the rocket when 25 seconds have passed since its launch?

Hhh H.

Physics 101 Mechanics

11 months, 3 weeks ago

A rocket rises vertically, from rest, with an acceleration of 3.2 m/s2 until it runs out of fuel at an altitude of 775 m. What is the velocity of the rocket when it runs out of fuel?

Hhh H.

Physics 101 Mechanics

11 months, 3 weeks ago

A falling stone takes 0.31 s to travel past a window 2.2 m tall. From what height above the top of the window did the stone fall?

Hhh H.

Physics 101 Mechanics

11 months, 3 weeks ago

A stone is thrown vertically upward at a speed of 19 m/s. How fast is this stone moving when it reaches a height of 13 m?

Marcus H.

Geometry

11 months, 3 weeks ago

m<BEF

Donald M.

Physics 101 Mechanics

11 months, 3 weeks ago

Babe Didrickson holds the world record for the world's longest ball throw (296 ft) by a woman. For the following questions, assume the ball was thrown at an angle of 45 degrees above the horizontal, that it traveled distance of 296 feet, and that it was caught at the same level from which it was thrown. (a) What's the balls initial speed? (b) How long was the ball in the air?

Donald M.

Physics 101 Mechanics

11 months, 3 weeks ago

My question is based off of "In a friendly game of handball, you hit the ball essentially at ground level and send it toward the wall with a speed of 16 m/s at an angle of 37° above the horizontal. (a) What amount of time is required for the ball to reach the wall if it is 3.3 m away? (b) How high is the ball when it hits the wall?" So, my question is "(a) what are the magnitude and direction of the ball's velocity when it strikes the wall? (b) Has the ball reached the highest point of its trajectory at this time? Explain."

Donald M.

Physics 101 Mechanics

11 months, 3 weeks ago

A cork shoots out of a champagne bottle at an angle of 35 degrees above the horizontal. If the cork travels a horizontal distance of 1.3 meters in 1.25 seconds, what is the initial speed?

Donald M.

Physics 101 Mechanics

11 months, 3 weeks ago

My question is based off of "Pumpkin Toss In Denver, children bring their old jack-o-lanterns to the top of a tower and compete for accuracy in hitting a target on the ground (Figure 4-21 ). Suppose that the tower is 9.0 m high and that the bull’s-eye is a horizontal distance of 3.5 m from the launch point. If the pumpkin is thrown horizontally, what is the launch speed needed to hit the bull’s-eye?" So, my question is "If, in the previous problem, a jack-o-launtern is given an initial horizontal speed of 3.3m/s, what are the direction and magnitude of its velocity (a) .75 seconds later and (b) just before it lands?"

Bianca L.

Precalculus

11 months, 3 weeks ago

g(x)=x^2-8x

Travis L.

Precalculus

11 months, 3 weeks ago

in problems 39-62 graph each function using the techniques of shifting, compressing, stretching or reflecting. 3 absolute value of x+1 minus 3

Travis L.

Precalculus

11 months, 3 weeks ago

in problems 39-62 graph each function using the techniques of shifting, compressing, stretching or reflecting.

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