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Questions (465)

Look at the given triangles.4x+1 5x+5 7x-2 2x+2 6x+2 X+6 A)Write an expression for the perimeter of each triangle. B)Write
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2. 136 views
Simplify the expression.(-2y+3)(y+4)
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2. 69 views
Simplify the expression.(4x+3)(x-5)
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2. 64 views
Simplify the expression.3k^2 (-4k^2-2k+7)
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2. 69 views
Simplify the expression.-x(3x-8)
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2. 68 views
Simplify the expression.5t^6∙5t^6
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2. 69 views
Multiply. Write the result in scientific notation.(1.3∙10^(-4))(2∙10^(-2))
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2. 131 views
Multiply. Write the result in scientific notation.(2.6×10^1)(7×10^4)
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2. 116 views
Simplify.5^2/5^5
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2. 58 views
Write the value of the expression.5^7/5^7
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2. 59 views
Which of the following expressions is true?A) 5^2∙5^2=5^10 B) 4^2∙4^2>4^4 C)3^3∙3^6>3^8 D)2^3∙2^4=2^12
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2. 74 views
Which of the following expressions is true?A) 5^2∙5^3=5^6 B) 4^2∙4^3<4^5 C) 3^6∙3^4>3^9 D)2^3∙2^4=4^7
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2. 90 views
Divide.x^17/x^10
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Divide. State your quotient in exponential form.36^15/36^9
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2. 82 views
Multiply.f^2∙f^7
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2. 63 views
Suppose you earned 9t-2 dollars on Monday and 5t+7 dollars on Tuesday. What were your total earnings? Simplify your answer.
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2. 141 views
Subtract.(4y^2-3y+1)-(-8y^3+3)
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Add.(c^2+3c-5)+(c-7)
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2. 63 views
What are the coefficients in the polynomial 5x^2-7x-3?
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2. 77 views
Simplify the polynomial.-2x^2+3x+12+7x^2-7x+4
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2. 60 views
Simplify the polynomial.5x^2-6x+9-7x^2+9x+3
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2. 70 views
What polynomial does the model represent?4 full block 3 line blocks 6 single blocks
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2. 77 views
Multiply the following polynomials.(2y-3) (3y-2) A) 6y^2-13y+6 B) 6y^2-13y-6 C) 6y^2+13y-6 D) 6y²+13y+6
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2. 155 views
Multiply the following polynomials.4a(a²+7a+4) A) 4a+28a² + 16a B) 4a³ +28a² + 16a C) 4a³ +44a D) 44a^4
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Multiply the following polynomials.-2r(8r+5) A) -16r^2+5 B) -16r^2 +10 C) -16r^2-10r D) -16r^2-10
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2. 127 views
Replace the with <, >, or = to make a true statement.7^4/7^2_____49 A) < B) > C) = D) none of the above
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2. 120 views
Simplify each expression.5^0 A) 0 B) 5 C) 1 D) -5
1. 5 answers
2. 92 views
Simplify each expression.4^4/4^6 A) -16 B) 16 C) 1/16 D) -1/16
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2. 78 views
Write each expression using a single exponent.h^14/h^5 A) h^-9 B) 1/h^9 C) h^19 D) h^9
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2. 123 views
Write each expression using a single exponent.x^9/x^2 A) x11 B) x^7 C) 7 D) x^5
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2. 139 views
(2y-1)(4y-3)A) -2y+3 B) 8y2-10y-3 C) 8y^2-10y+3 D) 8y^2-2y+3
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2. 109 views
(3x+4)(x-2)A) 3x²-2x-8 B) x-8 C) 3x-2x-8 D) 3x²+2x+8
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2. 87 views
4d(2d-9)A) 8d-36d B) -d C) -28d^2 D) 8d^2-36d
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2. 191 views
-3m(m+8)A) -3m²+24 B) -3m²-24m C) -24m² D) -4m+5
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2. 115 views
(2x)(10x)A) 20x B) 12x C) 20x^2 D) 5x
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2. 88 views
The gas pedal belongs to which subsystem of an automobile?A) suspension B) control C) guidance D) transmission
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2. 219 views
How does combustion occur in a gas engine of a car?A) Carbon dioxide and gasoline are compressed in the engine, and a spark plug
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2. 198 views
How does combustion occur in a gas engine of a car?A) Carbon dioxide and gasoline are compressed in the engine, and a spark plug
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2. 235 views
Which mode of transportation is best for ensuring fastest delivery?a) air B) rail C) maritime D) road
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2. 238 views
Which type of transportation system is best for moving a large amount and wide variety of goods?A) maritime B) road C) rail D)
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2. 143 views
Which statement is true about the two metals used in batteries?A) The two metals are not reactive to chemicals inside the
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2. 279 views
When would a transformation of chemical energy to electrical energy occur?A) when a reaction produces the same products B) when
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2. 251 views
An architect is designing an office building in an area that can experience earthquakes. Which component would it be most
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2. 214 views
Which term refers to the rate of electricity passing through a circuit?A) voltage B) current C) electron D) conductivity
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2. 181 views
An engineer is designing a component of a product. The component is responsible for carrying electric current from one part of
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2. 223 views
Plywood is made by gluing together thin layers of wood. Which term best describes plywood?A) conductor B) composite C) raw
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2. 194 views
The gas pedal belongs to which subsystem of an automobile?
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2. 363 views
How does combustion occur in a gas engine of a car?
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2. 276 views
Which mode of transportation is best for ensuring the fastest delivery?
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2. 182 views
Which type of transportation system is best for moving a large amount and wide variety of goods?
1. 11 answers
2. 357 views
Which statement is true about the two metals used in batteries?
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2. 168 views
When would a transformation of chemical energy to electrical energy occur?
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2. 178 views
An architect is designing an office building in an area that can experience earthquakes. Which component would it be most
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2. 249 views
Which term refers to the rate of electricity passing through a circuit?
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2. 204 views
An engineer is designing a component of a product. The component is responsible for carrying electric current from one part of
1. 1 answer
2. 189 views
Which subsystem of a car is responsible for making the ride less bumpy on a rough road?A) control B) transmission C) guidance D)
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2. 169 views
Which vehicle subsystem has the function of carrying the weight of the vehicle and the passengers, as well as withstanding
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2. 183 views
Which method of transportation is most accessible in rural areas?A) rail B) maritime C) road D) air
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2. 151 views
Which term means "a charged atom that has either gained or lost a negative charge"?A) neutron B) proton C) electron D) ion
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2. 212 views
A contractor selects heavier trusses for a house, increasing the load that the walls must support. Which change will the
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2. 154 views
Which material listed would be the best choice as a conductor?A) salt water B) Styrofoam C) gold D) rubber
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2. 160 views
How does a light bulb function as a resistor?A) It amplifies or increases the electric current, changing the energy into the
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2. 228 views
Which statement about materials used as insulators and conductors is correct?A) Conductors prevent electricity from transferring
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2. 312 views
Which statement explains how heat causes materials to expand?A) Lower temperatures increase the kinetic energy of the particles,
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2. 238 views
Which term best describes Styrofoam?A) raw material B) nonmetal mixture C) metal mixture D) synthetic material
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2. 199 views
Engines work by converting chemical energy into mechanical energy. What process do they use to do this?A) propulsion B)
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2. 176 views
The turn signal belongs to which subsystem of an automobile?A) suspension B) transmission C) fuel D) control
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2. 151 views
Which list shows terms from the most general to the most specific parts of a car?A) component, subsystem, system B) component,
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2. 204 views
Which list shows terms from the most general to the most specific parts of a car?A) component, subsystem, system B) component,
1. 0 answers
2. 202 views
Which statement describes a characteristic of a vehicle's body?A) It connects and carries the weight of the vehicle. B) It
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2. 380 views
Which transportation system is best used to transport people and goods to remote inland areas?A) maritime B) air C) road D) rail
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2. 288 views
What is produced by the movement of electrons within a material?A) charged particles B) ionic reactions C) electric current D)
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2. 150 views
In which direction will the ionic paste allow the electrons to flow within a battery?A) negative side to positive side B)
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2. 175 views
In a building, air moves due to currents caused by temperature differences. Which statement best describes these currents?A)
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2. 293 views
Which statement describes a design factor that should be included in an energy-efficient home built in cold climates?A)
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2. 145 views
An electrician is trying to decide which kind of material to use to wire a house.⚫ carbon steel: conductivity = 1.43 x 10-7,
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2. 286 views
Which material would be a suitable insulator?O gold O silver O copper O rubber
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2. 145 views
Aluminum allows for the flow of electrons, while glass does not. Would an aluminum wire surrounded by glass be an effective
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2. 201 views
What happens to some metals when the kinetic energy of their particles is decreased?O They expand. O They conduct. O They melt.
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2. 142 views
Which material is a composite?O aluminum O polycarbonate O gold O silicon
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2. 159 views
Look at the given rectangle. Write a polynomial expression in simplest form for the perimeter of the rectangle.5x + 5 2x - 1 5x
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2. 144 views
(-7w²-2w-1)-(-5w²+3w-2)A) 12w²+5w+1 B) -2w^2-5w-1 C) -2w²-5w+1 D) -12w^2-5w-3
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2. 131 views
(6h+1)-(9h+4)A) -3h - 3 B) 15h - 5 C) -3h + 3 D) -3h + 5
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2. 101 views
(3r²+7r+1)+(4r² - 8r-2)A) 7r^2 + 15r - 1 B) 7r^2 - r - 1 C) 7r^2 - 15r - 3 D) r^2 - r - 1
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2. 130 views
(9m+6)+(-5m-6)A) 4m + 12 B) 14m + 12 C) 14m - 12 D) 4m
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2. 108 views
Find the degree of −5w³ − 4w² + 7w + 16.A) -5 B) 16 C) 14 D) 3
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2. 94 views
solve 3x²+8x+7xA) 3x² + 15x B) 18x3 C) 3x²+1 D) 3x²-x
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2. 160 views
solve a²+5a-3a²A) 5a+2a² B) 5a-2a2 C) 2a²+5a D) 5a-3a²
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2. 125 views
a²+5a-3a²A) 5a+2a² B) 5a-2a2 C) 2a²+5a D)5a-3a²
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2. 111 views
4x+6x²+5xA) 7x3 B) 6x²+9x C) 6x²-9x D)6x²+x
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2. 111 views
How is an electromagnetic field produced?A) when a conductor interacts with a magnet B) when a current runs through a conductor
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2. 153 views
Use the table to answer the question.Electromagnet P Q R Current Intensity medium low low Number of Turns 20 20 15 Which list
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2. 226 views
Which purpose does a light bulb serve in a circuit?load wire switch cell
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2. 195 views
A particular circuit is made up of a battery, a switch, a buzzer, and wires connecting the components. All of the components are
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2. 145 views
Solar cells are used to power a person's house. Which statement about the process is correct?Energy from the sun might be
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2. 140 views
How does adding a resistor to an electric circuit affect the current?The resistor decreases the current by decreasing the amount
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2. 163 views
Explain how to write a function rule from the table below. Then write a function rule.x 0 2 4 6 y 2 1 0 -1
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2. 116 views
A 154-lb person burns 420 calories per hour riding an exercise bicycle at a rate of 15 mi/hr.Write a function rule to represent
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2. 180 views
Which quadratic rule represents the data in the table?x -1 0 1 2 3 y 6 5 6 9 14 y = -2x²+5 y = x²+5 y = x²-5 y = x²+5
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2. 84 views
Which function rule represents the data in the table?x -3 -2 -1 10 1 y 1 -2 -5 -8 -11 y=-3x - 8 y=1/3x - 8 y=1/3x + 8 y=3x + 8
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2. 127 views