Questions and answers by

nati

Questions (776)

A student wants to draw a model of an atom. Which statement describes how to find the number of neutrons to include in the
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A model of an atom shows eight electrons in rings that represent different energy levels. How many electrons are in each energy
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given:Cause: well organized, system of roads, powerful army Effect: ? Which statement identifies a major effect of the causes
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the building and use of observatories allowed the maya to develop what?given: complex calendar hieroglyphic writing slash and
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according to their religion, the maya believed thatgiven: kings and priest could communicate with gods their kings should be
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Which conclusion is best supported by this map?(1 point) Responses The Aztec empire conquered the Olmec civilization. The Aztec
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hunted whales subartic or artic cultures?hunted moose and elk subartic cultures or artic cultures? dug homes into grounds
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If △PQR∼△JKL, which statements are correct?(1 point) Responses ∠P≅∠J and PQ¯¯¯¯¯¯¯¯ corresponds to
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given a,b,c,d and f,g,h,eWhich statement represents the similarity between the two figures? (1 point) Responses quadrilateral
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Given 13yd and X3.25yd and 4.23 yd Use proportions to find the missing side length ( x ) in the two similar figures. (1 point)
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How is plastic made?(1 point)Responses Coal and natural gas are chemically broken down into small compounds that combine to form
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What is a polymer?(1 point)Responses a chain of repeating compounds found in both natural and synthetic materials a chain of
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What must happen for a natural resource to become a synthetic material?(1 point)Responses It needs to go through a chemical
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A beaker contains a mixture of sand and salt. A student adds water to dissolve the salt. Which processes can be used to separate
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You are worried that a solid substance has dissolved in a beaker of water in a lab. What would be a way to separate the
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A scientist is working in a lab and accidentally combines two liquids that quickly form a solution. Which process could be used
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Which quantity describes how tightly packed matter is inside of an object?(1 point)Responses mass mass density density volume
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Which equation describes the mass of an object in relation to its volume and density?(1 point)Responses m=D×V m=D×V m=V/D
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Two children on a seesaw are able to balance perfectly while on Earth. Would they still be balanced if the seesaw was brought to
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Explain why a doctor would prescribe medicine to someone who is in good health.(1 point) Responses Your cousin had back surgery
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A class is given this question on a test about exponents: A squirrel collects 12 nuts an hour for 12 hours on 12 days. Write an
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Apply the Associative and Commutative Properties to generate an expression equivalent to 2(a+5)+4(2a+3)−10.(1 point) Responses
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Which expression is equivalent to 2(x+3)+4(x+1)?(1 point) Responses 6x+7 6 x plus 7 3x+10 3 x plus 10 2x+10 2 x plus 10 6x+10
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Which of the following shows the correct pairing of a property of operations and its example?(1 point)Responses 2(a+3) = 2a+6 ;
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What is the coefficient in the expression 9+8b−56?
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In the equation 9c=18, the 9 is called a(1 point) Responses product. product. term. term. coefficient. coefficient. variable.
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The expression 5pis given. What is this expression translated into words?(1 point) Responses the quotient of 5 and a number p
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A truck rental costs $2 per miles, m, driven plus a $24 rental fee. Translate the words into an algebraic expression.
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The expression 25c+48arepresents the total cost for a group of children and adults to attend the amusement park. The variable c
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Evaluate a5 − bc + 4a ÷ cwhen a = 2 , b = 3 , and c = 8 .
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A sign is being painted that is comprised of 3 small squares with a side length of sand 2 large squares with a side length of x
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What are the variables in the equation y=3x−4?(1 point) Responses y only y only 3 and 4 3 and 4 x and y x and y x only
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3 raised to what power would equal 81?
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A worker in a factory earns $10 an hour. The worker works 10 hours a day for 10 days straight before a vacation. How much money
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A worker in a factory earns $10 an hour. The worker works 10 hours a day for 10 days straight before a vacation. How much money
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A class is given this question on a test about exponents: A squirrel collects 7 nuts an hour for 7 hours on 7 days. Write an
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4(x+7)+3(5x+7)-2
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7(x+5)+2(x+3)
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which of the following shows the commentative property?1. 2(a+1)=2a+2 2. 5x+4y=4y+5x 4(2x+1)=4(2x)+1
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simplify 14-5(4/5)+7
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which of these is the coefficient of 3x=27?
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the expression n+4 is given. What is this expression translated into words?
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to rent a corvette cost $5 per mile (m)driven plus a $100 rental fee. The total cost (t) is the sum of miles driven plus the
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Th expression 12c+15a represents the total coast for group of children ad adults to go bowling. The variable C represents the
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Evaluate a^4-b(c)+2(a)divided 2a=2, b=4, c=3
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A sign is being painted that includes 3 small squares with a side length of X and 4 large ones with sides length of Y. Write an
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A worker in a factory earns $12 an hour. The worker works 12 hours a day for 12 days straight before a vacation. How much money
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Apply the Commutative Property to generate an expression equivalent to 8+9f−2+6f−8f−4+12.(1 point) Responses 14+7f 14 plus
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Apply the Distributive Property to generate an expression equivalent to 8(3+j).(1 point) Responses 24+j 24 plus j 24+8j 24 plus
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Which expression is equivalent to 5(g+2)−3?(1 point) Responses 5g+7 5 g plus 7 5g−7 5 g minus 7 5g−1 5 g minus 1 5g+10
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Are the expressions 3+(4x+1)and 4−4x equivalent?(1 point) Responses Yes, they are because both expressions simplify to 4−4x
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Apply the properties of operations to determine which expression is equivalent to a+b+c(d+2).(1 point) Responses a+b+cd+2c a
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Which property of operations is signified by the movement of parentheses?(1 point)Responses Identity Property Identity Property
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Consider the following equation: 4+3+5=5+3+4. This equation shows an application of which property of operations?(1 point)
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Consider the following equation: 4(3+5)=12+20. This is an application of which property of operations?(1 point) Responses
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Which expression is an example of the Commutative Property of Addition?(1 point)Responses 5(4+6)=50 5 left parenthesis 4 plus 6
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Which expression is an example of the Associative Property of Multiplication?(1 point)Responses 7+9+8=9+7+8 7 plus 9 plus 8
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Use the order of operations to simplify: 6/3 +4÷2+4/4.(1 point) Responses 2 2 4 4 5 5 6
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Use the order of operations to simplify: 63 +4÷2+44.(1 point) Responses 2 2 4 4 5 5 6
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Use PEMDAS to simplify: 72÷12+26−8⋅3. (1 point) Responses 56 56 8 8 −10 negative 10 72 72
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According to the order of operations, which step should be completed first in the following expression: 6−3⋅1^18÷2⋅4+8?
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Use the order of operations to simplify 12−2^3+4÷2+2^4.(1 point) Responses 20 20 24 24 14 14 22
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Use the order of operations to simplify 12−23+4÷2+24.(1 point) Responses 20 20 24 24 14 14 22
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Use the order of operations to simplify 8+7⋅6−3⋅4+6⋅7.(1 point) Responses 80 80 120 120 2,478 2,478 36
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What is the best word to describe 14k+2in 14k+2=16 ?(1 point) Responses expression expression term term sum sum equation
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Identify the gin the equation: 18g−1=40 .(1 point) Responses variable variable term term constant constant expression
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Identify the sum in the equation: 4+x=19(1 point) Responses 4+x 4 plus x = = x x 19
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The expression x+20represents the total cost to visit a gym each month. What is this expression translated into words?(1 point)
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The expression x−8is given. What is this expression translated into words?(1 point) Responses a number x less than 8 a number
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The expression 12÷dis given. Translate the expression into words.(1 point) Responses the difference of 12 and a number d the
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A square garden has 4 equal sides. The perimeter of the garden is the product of its side length, s, and 4. Translate the words
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A soccer game includes 90 minutes of play time plus xminutes of time-outs. Translate the words into an algebraic expression.(1
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A soccer game is 90 minutes with mminutes of stoppage time. The total time is 90 + m . How long is the game with 12 minutes
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The length of a garden is 28 feet, and its width is 16 feet. The perimeter of the rectangle is 2l + 2wwhere l is the length and
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In a game, a player gets 15 points for a correct answer and loses 10 points for an incorrect answer. The expression 15c−10arep
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how many moles of water vapour are formed when 10 liters of butane gas C4H10 is burned in oxygen at stp?
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