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3 years ago

What are four ways an inequality can be written?

Mathematics

1 answer:

Irina18 [472]3 years ago

7 0

Answer:

There are four ways to represent an inequality: Equation notation, set notation, interval notation, and solution graph.

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Glenn bought 3 pounds of tomatoes. He used § of them to make sauce.

Darya [45]

Answer:i dont kno what number u put

Step-by-step explanation:

8 0

3 years ago

Y=3x-2 what is the value of y? when y=-1/3

Olin [163]

Oddly enough, when y=-1/3, the value of y is -1/3.

When x = -1/3, the value of y is
.. y = 3*(-1/3) -2
.. = -1 -2
.. = -3

When x = -1/3, the value of y is -3.

7 0

3 years ago

A ball slides up a frictionless ramp. It is then rolled without slipping and with the same initial velocity up another frictionl

KATRIN_1 [288]

Answer:

Rolling case achieves greater height than sliding case

Step-by-step explanation:

For sliding ball:

- When balls slides up the ramp the kinetic energy is converted to gravitational potential energy.

- We have frictionless ramp, hence no loss due to friction.So the entire kinetic energy is converted into potential energy.

- The ball slides it only has translational kinetic energy as follows:

ΔK.E = ΔP.E

0.5*m*v^2 = m*g*h

h = 0.5v^2 / g

For rolling ball:

- Its the same as the previous case but only difference is that there are two forms of kinetic energy translational and rotational. Thus the energy balance is:

ΔK.E = ΔP.E

0.5*m*v^2 + 0.5*I*w^2 = m*g*h

- Where I: moment of inertia of spherical ball = 2/5 *m*r^2

w: Angular speed = v / r

0.5*m*v^2 + 0.2*m*v^2 = m*g*h

0.7v^2 = g*h

h = 0.7v^2 / g

- From both results we see that 0.7v^2/g for rolling case is greater than 0.5v^2/g sliding case.

4 0

3 years ago

HELP ASAP!!!!!!!!!!!!!!!!!

Nadusha1986 [10]

Answer:

#3 2 Right, 4 Down & #4 Vertical Compression

8 0

3 years ago

Part 1: Use the information provided to write the standard form equation of each circle. Please show the work.

dusya [7]

Answer:

1. (x + 2)² + (y - 9)² = 64

2. (x + 6)² + (y - 9/2)² = 100

3. (x - 15)² + (y + 10)² = 1

Step-by-step explanation:

Equation of a circle:

(x - h)² + (y - k)² = r²

1. Center: (-2, 9), Radius: 8

(x - (-2))² + (y - 9)² = 8²

(x + 2)² + (y - 9)² = 64

2. Center: (-6, 9/2), Radius: 10

(x - (-6))² + (y - (9/2))² = 10²

(x + 6)² + (y - 9/2)² = 100

3. Center: (15, -10), Radius: 1

(x - 15)² + (y - (-10))² = 1²

(x - 15)² + (y + 10)² = 1

4 0

3 years ago