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haven

Questions (157)

What evidence points to a different type of government in Tres Zapotes?1.The majority of the colossal heads were found there.
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2. 36 views
which statement is always true when nuclear fusion occurs?the combined number of protons and neutrons remains constant. the
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2. 75 views
which statement best describes the effect of radioactive decay on a nucleusthe resulting nucleus is less stable that the
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2. 90 views
the process of radioactive decay is unpredictable and irreversible. which option would be an appropriate model of the
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2. 90 views
which option would be an appropriate model of nuclear fission?disturbing a drop of water such that it breaks into smaller
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2. 79 views
which statement best explains why mass is not conserved in nuclear change?some of the reactants are not used some of the matter
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2. 129 views
polonium has a mass number of 212 and an atomic number of 84. in a balanced nuclear reaction, polonium releases an alpha
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2. 96 views
which statement about the balanced equations for nuclear and chemical changes is correct?both are balanced according to the mass
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2. 113 views
which phase describe transmutation?A ) the conversation of an atom of one element into a different element through nuclear
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2. 105 views
the element radium has a mass number of 226 and an atomic number of 88. how many neutrons does an atom of radium have?88 314 138
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2. 107 views
use the reaction to complete the sentence2co+o2>2co2 carbon monoxide and oxygen combine to produce carbon dioxide. the total
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2. 170 views
which event is an example of an exothermic reaction?combustion melting ice evaporation decomposition
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2. 117 views
acid base reactions can also be classified as which type of reaction?A ) double replacement B ) single replacement C ) synthesis
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2. 153 views
which statement comparing ionic and covalent bonds is correct?a ) the difference between electronegativities is greater for
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2. 180 views
according to the law of conservation of mass, if 88 g of carbon dioxide (co2) is produced in a reaction between oxygen (o) and
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2. 101 views
according to the law of conservation of matter, what happens to atoms during a chemical reaction?a ) nothing; they stay the
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2. 115 views
use the equation to answer the question.ch4+2o2>co2+2h2o if you change the 2 in front of 2o2 to a 3, what will be the change in
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2. 158 views
how many atoms of carbon(c) are present in the reactants of the following chemical equation?c7h16+02>co2+h20 a ) 7 atoms b ) 16
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2. 387 views
which of the following equations shows a chemical change?A ) c2h5oh(l)>c2h5oh(g) B ) c3h8+5o2>3co2+4h2o C ) h2o(s)>h2o(g) D )
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2. 95 views
after the development of agriculture, why did the fear of being a victim of a dispute grow?a ) as birth rates rose, the increase
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2. 229 views
how long did it take the romans to write the 12 tables
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2. 54 views
from which language has our modern-day criminal justice system borrowed terms?
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which explains the creation of a new law, chronologically, in ancient sumer?A ) assembly of wisemen pass a law; a king either
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2. 85 views
(2x^(3)-x^(2)-24x+12)+(2x-1) divide.
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2. 77 views
what is the simpler form of (5x^3+2)(5x^3-2)
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2. 143 views
simplify (7t^2+9)+(6t^2+8)
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2. 90 views
there is a circular garden in the middle of a square yard. the radius of the circle is 4x. the side length of the yard is 20x.
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2. 116 views
how can the polynomial 6d^4+9d^3-12d^2 be factored?
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2. 155 views
what is the GCF of the terms of 8c^3+12c^2+10c?A ) 2 B ) 4 C ) 2c D ) 4c
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2. 142 views
what is the GCF of the terms of 8c^3+12c^2+10c
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2. 174 views
how can this product be simplified?5x^2(2x-3)
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2. 157 views
whats the difference of the following polynomials?(6x^3-2x^2+4) -(2x^3+4x^2-5)
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2. 75 views
what is the degree of the monomial 3x^2y^3?a ) 2 b ) 3 c ) 5 d ) 6
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2. 138 views
soppose that the amount of algae ina pond doubles every 4 hours. if the pond initially contains 90 pounds of algae, how much
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2. 111 views
does the rule y=-5^6 represent an exponential function?a ) no b ) yes
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2. 116 views
scientific notation for92,170,000
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2. 70 views
scientific notation for(3x10^6)(8x10^-4)
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2. 72 views
what is the order of 1.5 x 10^3 , 1.4 x 10^-1 , 2 x 10^3 , and 1.4x10^-2 from least to greatest
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2. 53 views
is 5.1x10-8 scientific notation?
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2. 64 views
what is the value of 12x^-3y^-1 for x=-1 and y=5
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2. 63 views
4^(6)x4^(3)a ) 4^9 b ) 4^18 c ) 12^9 d ) 64^9
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2. 118 views
suppose an investment of $2,300 doubles in value every decade. the function f(x)=2,300⋅2^xgives the value of the investment
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2. 122 views
suppose a population of 160 cricket doubles in size every month. the function f(x)=160⋅2^x give the population after x months.
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2. 102 views
which of the following statement is not true regarding operations with exponents?a ) to divide powers with the same base,
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2. 170 views
which is the correct simplification of 5.4x10^12/1.2x10^3 written in scientific notation?a ) 4.5 x 10^7 b ) 4.5 x10^9 c ) 45 x
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2. 112 views
a fraction reduces to 36. if its denominator is 6x^5, what is its numerator?a ) 6^3x b ) 6^3x^5 c ) 6x^5 d )6^7x^5
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2. 91 views
which expression is not equal to 125?a) 5(5^3/2/5)^2 b) (5^3/5^4)^-3 c) 5^-2/5^-5 d) 5(5^5/5^3)
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2. 185 views
which of the following is equivalent to x^5y^2/xy^2 when x≠0 and y≠0a ) x^6y^5 b ) x^5y c ) x^4y d ) x^4
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2. 109 views
simplify (6x^-2)^2(0.5x) show your work.
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simplify (2t^-3)^3(0.4r)
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2. 125 views
simplify (4xy^2)^3(xy)^5'a ) 64x^8y^11 b ) 64x^15y^30 c ) 12x^2y^11 d ) 12x^8y^11
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2. 144 views
is the following statement always, never or sometimes true?a number raised to a negative exponent is negative. a ) always b )
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2. 148 views
evaluate 1/2a6-4b^2 for a=-2 and b=4a ) 2 b ) 1.2 c ) 3 d ) 4
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2. 74 views
evaluate 1/2a6-4b^2 for a=-2 and b=4
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simplify. write in scientific notation. (9x10^-3)^2a ) 8.1 x 10^-5 b ) 81 x 10^-4 c ) 81 x 10^-3 d ) 8.1 x 10^-6
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simplify. write in scientific notation. 0.5(8x10^5)a ) 8x5^5 b ) 4x5 ^5 c ) 8x10^5 d ) 4x10^5
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2. 182 views
write in standard notation. 6.12x10^3a ) 6,120 b ) 612 c ) 61,200 d ) 61.2
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2. 180 views
write in scientific notation. 0.0042A ) 42x10^-2 B ) 4.2x106-4 C ) 4.2x10^-3 D ) .42x10^-4
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2. 100 views
simplify. mn^-4/p^0q^-2a ) mq^2/n^4 b ) mp/n^4 c ) mn^-4q^2p^0 d ) q^2/mn^4
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simplify. 5^-1(3^-2)a) 45 b ) 1/45 c ) 15^-3 d ) 15^2
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2. 64 views
where does the light-dependent stage of photosynthesis occur in the plant cell?
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2. 176 views
aerobic respiration is
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2. 87 views
the size of a certain cell is 2.5 x 10^-9m. another cell is 1.5x10^3 times larger. how large is the larger cell in scientific
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2. 71 views
the size of a certain cell is 2.5 x 10^-9m. another cell is 1.5x10^3
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2. 137 views
what is the simplified form of (3.25s10^3)(7.8x10^6) written in scientific notation?
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2. 88 views
a rectangular pasture has a fence around the perimeter. the length of the fence is 16x^7 and the width is 48x^4. what is the
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2. 137 views
what is the simplified form of -9m^-2n^5 x 2m^-3n^-6
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2. 81 views
what is the simplified form of (-3x^3y^2)(5xy^-1)
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2. 245 views
a tree is 3,212 years old. how can you express this age in scientific notation with the lowest level of precision?a )3x10^3 b )
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2. 100 views
which number is equal to 7(3.5x10^4) written in scientific notation?A ) 24.5x70^4 B ) 2.45x10^5 C ) 24.5x10^4 D ) 1.05x10^5
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2. 125 views
which of the following statements is not true regarding an expression written in scientific notation in the form ax10^n?a ) the
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2. 92 views
which of the following statements is not true regarding an expression written in scientific notation in the form of ax10^na )
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2. 76 views
which of the following statements is not true regardinh an expression written in scientific notation in the form of ax10^n
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2. 128 views
whcih expression is equal to 1/8000 written in scientific notation?A ) 8.0x10^3 B ) 1.25x10^-4 C ) 125x10^-5 D ) 1.25x10^4
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2. 162 views
what expression represents the largest number?a ) 6.1x10^-7 b ) 4.1x10^-7 c ) 3.1x10^-8 d ) 5.1x10^-8
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2. 92 views
which of the following is 0.0000000708written in specific notation
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2. 56 views
which of the following expressions is written in scientific notation?a ) 73.4x10^5 b ) 0.09x10^7 c ) 80x10^3 d ) 4.22x10^-3
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2. 82 views
which of the following simplifies to a negative number?A ) -4^-4 B ) (-4)^-4 C ) 4^-4 D ) 1/4^-4
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2. 246 views
what is (-m)^-3n if m=2 and n=-24a ) 3 b ) -3 c ) 4 d ) -4
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2. 82 views
what is the simplified form of -(14x)^0y^-7x
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2. 74 views
what is -a^-2 if a =-5?
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2. 93 views
what us -a^-2 if a =-5?
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2. 47 views
what is the simplified form of 3a^4b^-2c3
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2. 119 views
which graph represents this system of inequalities?y<=2x+3 3x+y<=-2
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2. 120 views
susan makes $5 per hour baby sitting and $7 per hour as a lifegaurd. her goal is to make at least $140. let x= the number of
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2. 152 views
a science teacher has a supply of 50% sugar solution and a supply of 80% sugar solution. how much of each solution should the
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2. 202 views
a science teacher has a supply of 50% sugar solution and a supply of 80% sugar solution. how much of each solution should the
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2. 340 views
what is the solution of the system5x+7y=32 8x+6y=46
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2. 69 views
what is the solution of the system2x-y=-7 4x-y=-4
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2. 69 views
how many solutions does the system of equations have?y-5x=-6 3y-15x=-12
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2. 159 views
how many solutions does the system of equations have?x-4y=12 5x-20y=60
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2. 112 views
how many solutions does the system of equations have?x-4y=12 5x-20y=60
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2. 90 views
how many solutions does the system of equations have?y=6x+2 3y-18x=12
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how many solutions does the system of equations have?3x=-12y+15 x+4y=5
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2. 160 views
for questions 22, determine if the sentence contains a misplaced modifier or danglinf modifier, or if it is correct.josie's
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talking is not allowed in class .a ) prepositional b ) gerund c ) appositive d ) infinitive
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henry's desire to win is obvious.a ) gerund b ) infinitive c ) prepositional d ) participial
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mikayla's homeroom teacher, mr.jones, is very proud of her.a ) participial b ) gerund c ) appositive d ) prepositional
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for questions 18-21, identify the underlined phrase in sentence.according to the letter, the wedding is june 25th. a )
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2. 81 views
in "the lovesong of j. aflred prufrock," t. s. eliot deliberately uses old-fashioned poetic language.a ) true b ) false
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2. 89 views