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Questions (445)

What is the domain of the function?y = √5x - 10 A. x ≥ -2 B. x ≤ -2 C. x ≥ 2 D. x ≤ 2
1. 1 answer
2. 86 views
Simplify the radical expression.(8 + √11)(8 - √11)
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2. 84 views
Simplify the radical expression.2√6 + 3√96
1. 1 answer
2. 93 views
simplify the radical expression √3 + 4 √3
1. 1 answer
2. 90 views
Simplify the radical expression.√63x^15y^9/7xy^11 A. 8x^7 y^4 √xy / √7xy^11 B. 3x^7 / y C. 9x^7 / y D. 9x^7y
1. 2 answers
2. 292 views
Simplify the radical expression.√63x^15y^9/7xy^11
1. 1 answer
2. 138 views
Simplify the radical expression. Show all your steps.√363−3√27
1. 0 answers
2. 169 views
Simplify: 2 over square root of 5Simplify: -11 over square root of 112
1. 1 answer
2. 99 views
1. What is the simplified form of √140?2. What is the simplified form of √48n^9? 3. What is the simplified form of 3√5c
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2. 445 views
Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.Solve the system of
1. 3 answers
2. 277 views
Complete the square. Fill in the number that makes the polynomial a perfect-square quadratic.p2 + 16p + blank?
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2. 131 views
Match each quadratic function to its graph.f(x)=x2+2 g(x)= – x2–4 h(x)= – x2 k(x)=2x2–24x+72=2(x–6)2
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2. 107 views
Solve for f.4f2–49=0 Write each solution as an integer, proper fraction, or improper fraction in simplest form. If there are
1. 1 answer
2. 192 views
Find the discriminant.3= – 3x2–6x How many real solutions does the equation have? no real solutions one real solution two
1. 3 answers
2. 173 views
Complete the square. Fill in the number that makes the polynomial a perfect-square quadratic.p2 + 16p + blank
1. 1 answer
2. 134 views
Solve for x.2x2+31x+15=0 Write each solution as an integer, proper fraction, or improper fraction in simplest form. If there are
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2. 160 views
Solve for s.s2+12s–13=0 Write each solution as an integer, proper fraction, or improper fraction in simplest form. If there
1. 3 answers
2. 161 views
When light waves are refracted, if they bend toward the normal they are (slowing down/speeding up) and if they are bent away
1. 1 answer
2. 120 views
When light waves are refracted, if they bend toward the normal they are _and if they are bent away from the normal they are _
1. 1 answer
2. 114 views
What is the position of an image in a curved mirror if the object is 25cm from the concave mirror with a focal length of 5 cm?
1. 1 answer
2. 184 views
What is the position of an image in a curved mirror if the object is 25cm from the concave mirror with a focal length of 5 cm?
1. 1 answer
2. 190 views
What is the position of an image in a curved mirror if the object is 25cm from the concave mirror with a focal length of 5 cm?4.
1. 1 answer
2. 187 views
What is the position of an image in a curved mirror if the object is 25cm from the concave mirror with a focal length of 5 cm?
1. 1 answer
2. 136 views
As the density, temperature and/or rigidity of a medium increases, the speed of sound through the medium blankA. increases B.
1. 1 answer
2. 164 views
As the density, temperature and/or rigidity of a medium increases, the speed of sound through the medium increases or decreases?
1. 1 answer
2. 111 views
The period of a wave is the amount of time needed for a wave to pass a point. Use the formula to calculate the period of a wave
1. 1 answer
2. 114 views
The vibration of an object at the same natural frequency of a second object, causing the second object to vibrate at an
1. 1 answer
2. 123 views
When witnessing the Doppler effect, a source approaching the observer seems to have a shorter wavelength or a blank pitch, while
1. 1 answer
2. 117 views
A wave has a wavelength of 29 meters and frequency of 5 Hz. Determine the speed (in m/s) of this wave. You must include the
1. 1 answer
2. 114 views
A wave traveling at 56 m/s has a wavelength of 8 meters. Determine the frequency (in Hz) of this wave. You must include the
1. 3 answers
2. 131 views
With a sound wave, the loudness is related to the wave's blankfill the blank
1. 1 answer
2. 83 views
Waves on the electromagnetic spectrum that have more energy, such as Gamma rays and X-rays are more likely to harm living
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2. 130 views
what waves do not require a medium?
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2. 62 views
Blank waves do not require a medium.fill in the blank
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2. 93 views
When a guitar string is plucked, what part of the standing wave is found at the fixed ends of the string?(1 point)Responses the
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2. 129 views
A stationary source produces a sound wave at a frequency of 100 Hz. The wave travels at 1125 feet per second. A car is moving
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2. 189 views
A person moves away from a stationary sound source. Which phrase describes the sound perceived by the person?(1 point)higher
1. 1 answer
2. 170 views
Which of the following is true about sound waves? (1 point)Responses Sound would move faster in a pool of water than in a pool
1. 1 answer
2. 197 views
What happens to the wavelength when the frequency increases?Multiple choice The wavelength decreases. The wavelength increases
1. 1 answer
2. 145 views
What happens to the wavelength when the frequency increases?(1 point)Responses The wavelength decreases. The wavelength
1. 0 answers
2. 160 views
what is a fuse used for in a series circuit
1. 1 answer
2. 113 views
what is the battery used for in a series circuit
1. 1 answer
2. 82 views
what is the load in a circuit with only wire, lightbulbs, a battery and a switch?
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2. 122 views
what is the load in a circuit with only wire, lightbulbs and a battery?
1. 1 answer
2. 104 views
are lightbulbs necessary in a series circuit?
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2. 102 views
In a series circuit, how is a fuse blown?
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2. 117 views
how do you blow the fuse in a series circuit
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2. 101 views
What are the components of a series circuit?
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2. 83 views
What does a series circuit with a blown fuse look like
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2. 119 views
What is the effect of adding a resistor to a series circuit?
1. 1 answer
2. 102 views
How can you change your circuit to increase the amperage?
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2. 97 views
The simulation above illustrates the Law of conservation of energy because(blank) energy becomes (blank) energy which is then
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2. 136 views
You start with the electromagnet pictured. Name three ways you can increase the strength of this electromagnet.
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2. 129 views
Build a series circuit with the simulation intro that illustrates the function of a fuse. Your circuit should include all of the
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2. 131 views
Choose the measurement that corresponds to each unit.Units of voltage / Units of current / Units of resistance amps volts ohms
1. 1 answer
2. 127 views
Blank increases as a conductor increases in temperature becomes thinner or becomes longer.Fill in the blank
1. 1 answer
2. 117 views
Human embryos have tails, which become tail bones before birth. Tails also appear in fish, reptiles, amphibians, birds, and
1. 1 answer
2. 177 views
An electric train uses a power source of 25 volts. If the train track has a total of 45 ohms of resistance, what is the current
1. 1 answer
2. 205 views
if you add a resistor to a circuit, will the current flow quicker, slower, or stay the same?
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2. 105 views
Choose the small iron rod, 3 coils and 3 batteries. How many paperclips can be lifted?
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2. 114 views
Which material, iron or plastic rod will generate a stronger magnetic field?
1. 1 answer
2. 106 views
Use Ohms law to solve the problem: What is the resistance of a light if the voltage is 12.0 V and the current is 0.30 A?
1. 1 answer
2. 108 views
Use Ohms law to solve the problem: What is the total voltage in a circuit if the current passing through is 0.75 amps and the
1. 1 answer
2. 132 views
Fill in the blank.Resistance, (Ω) is measured in units called (blank?)
1. 1 answer
2. 161 views
Using the following phrases and the spanish word hay, describe where things are located in your enviornment at home. give THREE
1. 1 answer
2. 497 views
Why is it not always necessary to include a subject pronoun before the verb in Spanish? Write your answer in English and a
1. 1 answer
2. 444 views
Using the data from the experiment, graph your results, with the independent variable on the x axis and the dependent variable
1. 1 answer
2. 189 views
Note: Enter your answer and show all the steps that you use to solve this problem and write your final answer in factored form
1. 1 answer
2. 163 views
Using the data from the experiment, graph your results, with the independent variable on the x axis and the dependent variable
1. 1 answer
2. 136 views
Fill in the blankCool some water molecules until they stop moving at all. What temperature did the water reach? (Blank)? degrees
1. 1 answer
2. 116 views
Adding heat (blank?) the amount of kinetic energy of the water moleculesFill in the blank
1. 1 answer
2. 107 views
You have two glasses of water. You add the same amount of food coloring to each. Based on the activity of the food coloring,
1. 1 answer
2. 167 views
Note: Enter your answer and show all the steps that you use to solve this problem and write your final answer in factored form
1. 1 answer
2. 106 views
In 3–5 sentences, explain why the Tinker v. Des Moines Supreme Court case was significant for public school students.
1. 1 answer
2. 198 views
Simplify:(9x^3+2x^2−5x+4)−(5x^3−7x+4)
1. 1 answer
2. 62 views
what is the factored form of the expressiont^2 - 25
1. 1 answer
2. 104 views
Factor.4u2–26u+22
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2. 67 views
Factor.3z2+4z–7
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2. 76 views
Factor.q2+10q+24
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2. 91 views
Factor.j2–10j+24
1. 1 answer
2. 69 views
Factor out the greatest common factor. If the greatest common factor is 1, just retype the polynomial.30u5–45u3
1. 1 answer
2. 215 views
Find the product. Simplify your answer.(3f–3)(2f+1)
1. 2 answers
2. 87 views
Find the product. Simplify your answer.(3z–3)(z–2)
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2. 93 views
Fill in the blanksIn a convection current, molecules that are warm and blank dense rise, and those that are cool and blank
1. 1 answer
2. 143 views
Fill in the blanksYou design an experiment to test the effect of adding different amounts of ice (grams) to a given volume of
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2. 155 views
Fill in the blanksHeat always flows from blank to blank.
1. 1 answer
2. 69 views
Fill in the blankAs the kinetic energy of a material increases, its temperature blank.
1. 1 answer
2. 108 views
Thermal Energy Transfer Quick Check
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2. 1,301 views
Use the table of temperatures from several areas to complete the statement.Area Temperature (ºC) X 22 Y 18 Z 18 Air will move
1. 1 answer
2. 313 views
Thermal Energy Transfer Quick CheckUse the table of temperatures from several areas to complete the statement. Area Temperature
1. 4 answers
2. 1,895 views
What is thermal energy?(1 point)Responses a material that is a conductor of heat a material that is a conductor of heat the
1. 1 answer
2. 166 views
Choose one of the following and describe how a magnetic field helps it to perform its function: MRI, Precipitator, Particle
1. 2 answers
2. 139 views
Choose one of the following and describe how a magnetic field helps it to perform its function: MRI, Precipitator, Particle
1. 1 answer
2. 212 views
(image of an electromagnet)Given only the materials in the diagram, how can the strength of the magnetic field be increased?
1. 1 answer
2. 88 views
(image of a nail attached to a battery)Given only the materials in the diagram, how can the strength of the magnetic field be
1. 1 answer
2. 97 views
Fill in the blankThe object in the diagram above is called a(n) blank?
1. 1 answer
2. 97 views
fill in the blanksThe potential energy of the magnets in this system increases as the magnets move blank each other.
1. 1 answer
2. 100 views
The two magnets above are sitting on a table, kept in place by your hands. You feel the force between the magnets. As the
1. 1 answer
2. 169 views
fill in the blanksThe two magnets above are sitting on a table, kept in place by your hands. You feel the force between the
1. 1 answer
2. 132 views
The two magnets above are sitting on a table, kept in place by your hands. You feel the force between the magnets. As the
1. 1 answer
2. 213 views