Questions and answers by

Alana

Questions (289)

Which observation most likely indicates that only a chemical change has taken place?1. State of matter changes 2. The change
1. 1 answer
2. 316 views
A scientist studies an element that has seven electrons in its outer shell, is fairly toxic, is a gas at room temperature, and
1. 1 answer
2. 262 views
Neon and argon are both in group 18 of the periodic table. Which property do they most likely share?1. Strong odor 2. silver
1. 1 answer
2. 191 views
Which property do transition metals have in common?1. They usually have high melting points. 2. They are usually very soft 3.
1. 1 answer
2. 146 views
Which two groups of elements in the periodic table table are the most reactive?1. halogens and noble gases 2. noble gases and
1. 1 answer
2. 87 views
Which term describes the repeated arrangement of the same molecule?1. Molecular model 2. Bonds 3. Extended Structure 4. Atoms
1. 1 answer
2. 146 views
A molecule of ethanol has two carbon atoms, six hydrogen atoms, and one oxygen atom. A ball-and-stick model of a molecule of
1. 3 answers
2. 115 views
Which of the following developed to result in the answer of 1?1. 3 (8^0) 2. 13 - (7.42)^0 3. 5^0 + 9^0 4. (-2.97)^0
1. 1 answer
2. 99 views
Apply the Zero Power Rule to create an equivalent expression to 4/3 (-2+1^0)An equivalent expression to 4/3 (-2+1^0) is 4/3(-2+
1. 1 answer
2. 109 views
Apply the Zero Power Rule of Integer Exponents to solve 63^063^0 = __
1. 1 answer
2. 145 views
Which are the correct steps to follow to simplify an exponential expression using Quotient Rule of Integer Exponents?1. Check if
1. 5 answers
2. 151 views
Simplify \frac{a^{67}}{b^{34}}
1. 1 answer
2. 61 views
Simplify 4^{13}\div 3^{-5}
1. 3 answers
2. 68 views
What is the missing exponent in the following equation?\frac{e^?}{e^{65}}=e^{38}
1. 3 answers
2. 64 views
Use the excerpt from a letter to answer the prompt.The current state of Castle Park is a disgrace to our community. Then years
1. 1 answer
2. 235 views
In 3-5 sentences, describes a character that is stingy with money and dishonest. Include allusions to Scrooge and Pinocchio or
1. 1 answer
2. 125 views
Use the paragraph to answer the prompt.What are nudibranch? Only some of the most colorful sea creatures on Earth! These marine
1. 1 answer
2. 183 views
Use the paragraph to answer the prompt.Most forest fires and wildfires are natural they clear away debris, old brush, and dying
1. 1 answer
2. 251 views
What is the most likely purpose for writing an explanatory article in third-person point of view that includes many facts and
1. 1 answer
2. 217 views
Use the sentences to answer the question"Mary is such a quiet child," said Aunt Lydia." It makes me wonder what will become of
1. 1 answer
2. 254 views
Why would a student include an allusion to Albert Einstein, an accomplished scientist with a famously bad memory, in a paper
1. 1 answer
2. 220 views
Use the paragraph to answer the question.All around the world, millions of people watch hundreds of new movies each year. Most
1. 1 answer
2. 165 views
Use the sentences to answer the questionA Buddhist book called The Diamond Sutra, printed around 868 C.E., is the oldest known
1. 1 answer
2. 138 views
use the sentences to answer the questionMany people believe a European named Johannes Gutenberg invented the printing press.
1. 1 answer
2. 226 views
Use the paragraph to answer the question.It happens way too often: oil leaking from wells beneath the ocean or tankers spilling
1. 1 answer
2. 191 views
Which nonfiction genre teaches the reader a process1. Humor 2. History 3. how-to 4. biography
1. 3 answers
2. 186 views
Which of the following does the atomic number of an atom represent?1. The number of protons in the atom 2. The number of
1. 1 answer
2. 83 views
A student wants to draw a model of an atom. Which statement describes how to find the number of neutrons to include in the
1. 1 answer
2. 160 views
Which statement about an atom is correct?1. The neutron has no charge and is found outside of the nucleus 2. The proton has no
1. 3 answers
2. 164 views
A model of an atom shows eight electrons in rings that represent different energy levels. How many electrons are in each energy
1. 1 answer
2. 156 views
You overhear a friend saying, "Plastic is the worst thing that humans have ever invented."In five sentences, explain whether you
1. 1 answer
2. 219 views
In two sentences, explain a similarity and a difference between the particles in liquid water at 100°C and the particles in
1. 1 answer
2. 126 views
What is the Great Pacific Garbage Patch?1. a place where plastic and other waste has collected in the Pacific Ocean 2. a place
1. 1 answer
2. 206 views
A student states that natural resources could be saved if people made everything they need in labs. What is the main problem
1. 2 answers
2. 275 views
Which statement is a good description of plastic1. It is a synthetic material that comes from natural resources 2. It is a
1. 1 answer
2. 111 views
Which phases does water go through if you use distillation to separate it from dissolved sugar?1. From liquid to a solid, and
1. 3 answers
2. 200 views
What happens to the density of a material if you have a larger piece of it?1. The density will be greater because the mass
1. 1 answer
2. 86 views
Which measurement is affected by gravity?1. Inertia 2. Mass 3. Weight 4. Density
1. 1 answer
2. 251 views
The expression like a ton of bricks means " a crushing weight " Would being hit by an actual ton of bricks hurt if it happened
1. 1 answer
2. 229 views
A student wants to try to convince her parents to stop serving peas for dinner. She lays out her argument that peas are high in
1. 1 answer
2. 241 views
A scientist adds iodine as an indicator to an unknown substance. What will this indicator reveal about the substance?1. The
1. 3 answers
2. 228 views
Which statement correctly describes the relationship between thermal energy and particle movement?1. As thermal energy
1. 7 answers
2. 93 views
Find the numerical equivalent of 4^9 * 4^-71. 4^2 2. 4 3. 16 4. 4^16
1. 3 answers
2. 157 views
find the numerical equivalent of 2^5 * 2^-21. 128 2. 8 3. 2 4. 16
1. 1 answer
2. 116 views
Find the numerical equivalent of 10^2 * 10^31. 10 2. 1,100 3. 10^5 4. 100,000
1. 3 answers
2. 127 views
Which of the following correctly used the product tule of exponents to simplify the expression 100^8 * 100^7?1. 200^15 2. 10,
1. 1 answer
2. 88 views
Which expression is correctly developed to use the product rule of exponents?1. 10^8 * 10^8 2. (5^2)^9 3. 32^7 4. 6^ * 7^3
1. 1 answer
2. 100 views
Find the numerical equivalent of 7^2 * 7^3
1. 1 answer
2. 122 views
Find the numerical equivalent of 3^9 * 3^-5
1. 1 answer
2. 137 views
Use the Product Rule Exponents to simplify the expression 3^9 * 3^-5
1. 1 answer
2. 147 views
Use the Product Rule Exponents to simplify the expression 7^2\:\:\cdot 7^3
1. 5 answers
2. 124 views
Use the Product Rule Exponents to simplify the expression 7^5\:\:\cdot 7^2
1. 1 answer
2. 96 views
Use the Product Rule Exponents to simplify the expression 3^8\:\:\cdot 3^3
1. 1 answer
2. 77 views
Use the Product Rule Exponents to simplify the expression 2^4\:\:\cdot 2^2
1. 1 answer
2. 65 views
how does text organization help an author achieve the desired purpose?1. The text structure allows an author to explain
1. 5 answers
2. 330 views
What is text organization1. The method an author uses to presents information in writing 2. The attitude of a writer towards a
1. 3 answers
2. 129 views
Article 1 informs readers about the benefits of hand washing, and Article 2 persuades readers to wash their hands move. Given
1. 3 answers
2. 110 views
Describe the relationship between rational numbers and whole numbers. Are all rational number also whole numbers? Are all whole
1. 1 answer
2. 98 views
What is a rational number with a denominator of 7 that is between √7 and √8. write your answer as an improper fraction.
1. 1 answer
2. 97 views
Which of the following is a rational number between 5 and 5 /141. 5 1/3 2. 5 1/7 3. √26 4. 5 2/5
1. 5 answers
2. 88 views
convert 0.72 ̅ to a rational number in simplest form
1. 1 answer
2. 142 views
Using rational approximations, what is an inequality statement comparing √81 and √88? enter <, >, or =.The inequality is:
1. 1 answer
2. 56 views
Using a number line, what whole number and rational number to the nearest half is √58 between1. Between 8.5 and 9 2. Between
1. 3 answers
2. 63 views
Using a number line, what whole number and rational number to the nearest half is √40 between?√40 is between __ and __.
1. 1 answer
2. 67 views
The diagonal of a square equals √2 times the side length. Using 1.4 for the square root of 2, What is the approximate length
1. 1 answer
2. 200 views
The height of an equilateral triangle equals √3/2 times the side length. Using 7/4 for the square root of 3, what is the
1. 1 answer
2. 124 views
Which set of numbers is always rational?1. Integers 2. Decimals 3. Positive numbers 4. Fractions
1. 3 answers
2. 219 views
A sign in a gas station advertises gas at the rate of $3.39 9/10 per gallon. How many dollars does a gallon cost, writing the
1. 3 answers
2. 166 views
Which of the following is true about -9?1. It is an integer but not a rational number 2. It is an integer but not a whole number
1. 1 answer
2. 72 views
Which statement is true about the relationships between the number sets?1. Some irrational numbers are also integers 2. All
1. 1 answer
2. 63 views
convert the following repeating decimal to a fraction simplest form.40 ̅
1. 3 answers
2. 117 views
Convert the following repeating decimal to a fraction simplest form.32 ̅
1. 1 answer
2. 118 views
Convert the following repeating decimal to a fraction in simplest form..96 ̅
1. 1 answer
2. 150 views
The number √4 is rational because __1. it is a decimal that repeats. 2. It is a decimal that terminates 3. It is a decimal
1. 1 answer
2. 112 views
Determine if √4 is rational or irrational and give a reason for your answer.
1. 1 answer
2. 108 views
The number √16 is rational because __1. it is a decimal that repeats. 2. It is a decimal that terminates 3. It is a decimal
1. 1 answer
2. 99 views
Determine if √16 is rational or irrational and give a reason for your answer.
1. 1 answer
2. 115 views
The number √8 is irrational because __1. It is a decimal that repeats 2. It is a decimal that terminates 3. It is the square
1. 1 answer
2. 111 views
Determine if √8 is rational or irrational and give a reason for your answer.
1. 1 answer
2. 128 views
How many irrational numbers are there between √11 and √171. An infinite number 2. Six numbers 3. four numbers 4.
1. 1 answer
2. 92 views
Which irrational number is between √14 and √18√ 15 √19 √10 √13
1. 1 answer
2. 79 views
show an example of a rational number that is between √100 and √1110/3 3.4 3.1 16/5
1. 1 answer
2. 71 views
What is the least integer whose square root is an irrational number between 5 and 76 13 26 25
1. 1 answer
2. 77 views
Show an example of an irrational number between 9 and 11√100 √20 √10 √99
1. 1 answer
2. 146 views
Which of the following is between π and √11√10 √7 √8 √12
1. 1 answer
2. 66 views
Find a rational number with one decimal place that is between √17 and √18..
1. 1 answer
2. 127 views
Rational numbersWhat is the largest integer square root is an irrational number between 3 and 4?
1. 1 answer
2. 83 views
What is the largest integer square root is an irrational number between 3 and 4?
1. 1 answer
2. 105 views
if a repeating decimal has a repeating cycle of three digits, it will convert to a rational number with what denominator?100
1. 1 answer
2. 108 views
To convert 0.264 ̄ ̄ ̄ to a rational number, you would set x equal to 0.264 ̄ ̄ ̄ and then multiply both sides of the
1. 1 answer
2. 146 views
Convert 0.27 ̄ ̄ ̄ to a rational number in simplest form.3/11 1/27 27/100 27/99
1. 1 answer
2. 95 views
How many digits long could the repeating cycle of a repeating decimal be if the denominator of the rational number is 7?1. Up to
1. 1 answer
2. 118 views
How do you show the group of digits that repeat in a repeating decimal?1. By underlining them 2. By printing them in italics 3.
1. 1 answer
2. 154 views
To convert 0.82 ̄ ̄ ̄ to a rational number, you would set x equal to 0.82 ̄ ̄ ̄ and then multiply both sides of the
1. 1 answer
2. 120 views
Express 7/13 as a repeating decimal. Mark the repeating digits with a bar
1. 1 answer
2. 103 views
Use this paragraph to answer the questionSeaweed is used in most ice creams as a thickening agent. The food additive,
1. 1 answer
2. 160 views
Which of the following describes an inference?1. A definition of an important term in a text 2. Evidence from the text that
1. 1 answer
2. 226 views
use the paragraph to answer the questionDana complained to the produce manager that none of the avocados were ripe. The manager
1. 3 answers
2. 132 views
Use the paragraph to answer the question.Mr. Washington spent the whole summer running a student car wash to raise money for the
1. 1 answer
2. 160 views
use the passage to answer the question.As the sound of the doorbell reverberated through the hall, she cracked open the door and
1. 1 answer
2. 158 views