Browse questions and clear answers across school subjects and test-preparation topics.
The author states that “Chile is a land of contrasts and extremes.” Describe three ways in which the geography of Chile represents great contrasts or extremes. Cite parts of the text in your answer.
Read more →When compared to Mrs. Bush’s speech, Mrs. Gorbachev’s speech is A more openly political. B more appropriate for children. C not as inspiring or serious. D not fitting for the audience.
Read more →Find the distance between P and Q. The distance between P and Q is about ____ units. (Round to the nearest tenth as needed.)
Read more →The image shows a right triangle in the coordinate plane. What is the measure of segment DF? 117 units 15 units 6.7 units 10.8 units
Read more →A triangle has sides with lengths of 50 millimeters, 32 millimeters, and 41 millimeters. Is it a right triangle? yes no
Read more →Based on what you have read, what formation is shown in this photo? A lake B alps C island D moraine
Read more →The conservation of parity, conserved vector current, and hemoglobin and sickle cell anemia are all A research fields at the Chien-Shiung Wu Laboratory in the center of Nanjing, China. B areas of medical research that Chien-Shiung Wu…
Read more →Put the events that lead to Wu’s confirmation of Fermi’s theory of beta decay in the order they happened. Other scientists tried the experiment with thin and uniform source material and confirmed Fermi had been correct all along. Wu made…
Read more →This selection can best be described as informational nonfiction because it A) uses a narrator to tell the audience a story. B) includes dialogue between the main characters. C) presents and defends an argument. D) gives facts and details…
Read more →These two excerpts suggest that sugarcane A was in short supply for people in the Americas. B grew better in the Caribbean than in Europe. C grew well in England due to the increased rainfall. D was transported to England by Christopher…
Read more →Which of the following sentences from the selection includes an example of a metaphor? A Then the lower classes started eating more sugar as well. B Sugar has come a long way since its early days as a rarity. C The first harvest is known…
Read more →Which of the following sentences from the selection includes an example of a metaphor? A) Then the lower classes started eating more sugar as well. B) Sugar has come a long way since its early days as a rarity. C) The first harvest is…
Read more →This selection is mainly about how A a process has been developed to make sugar better for human consumption. B eating sugar as part of a meal can create sustained energy. C sugar has made a historical impact on countries over the years.…
Read more →Which polynomial matches the expression -x(x – 5)? x² – 5x x² + 5x -x² + 5x -2x – 5
Read more →A state department of public safety added 1/3 x² + 5x miles of highway to connect CoolTown and Bragville. It cost the department 3x² – 9 thousand dollars to complete each mile of interstate. Which expression shows the total cost, in…
Read more →A new office building in town has x² + 4 floors. Each floor is 3x² – 5 feet high. Which expression shows the total height of this office building? 3x⁴ – 20 feet 4x² – 1 feet 3x⁴ + 7x² – 20 feet 4x⁴ + 6x² – 20 feet
Read more →A new office building in town has x² + 4 floors. Each floor is 3x² – 5 feet high. Which expression shows the total height of this office building? 3x⁴ – 20 feet 4x² – 1 feet 3x⁴ + 7x² – 20 feet 4x⁴ + 6x² – 20 feet
Read more →Which polynomial matches the expression -x(x – 5)? x² – 5x x² + 5x -x² + 5x -2x – 5
Read more →Which polynomial is NOT equivalent to (5x – 2)(-2x + 4)? -10x + 20x + 4x – 8 4x + 20x – 10x² – 8 -8 + 24x – 10x² -10x² + 24x – 8
Read more →What is the value of ▲ in the equation shown? A) 1 B) 9 C) 10 D) 7
Read more →Solve the equation. -3(y − 5) = 24 y =
Read more →Drag each equation to show if it could be a correct first step to solving the equation 3(6 + x) = 24. 18 + x = 24 (3 • 6) + (3 • x) = 24 6 + x = 8 3(6 + x) = 72 6 + 3x = 24 18 + 3x = 24 Yes No Not Enough Information
Read more →Drag each equation to show if it could be a correct first step to solving the equation 2(x + 7) = 36. (2 · x) + (2 · 7) = 36 x + 7 = 18 2(x + 7) = 72 2x + 7 = 36 2x + 14 = 36 x + 14 = 36
Read more →Which sentence explains the correct first step in the solution of this equation? 4(x – 3) = 9 Add 2 to both sides. Apply the distributive property to get 4x – 12 = 9. Apply the distributive property to get 4x – 3 = 9. Subtract 9 from both…
Read more →Compared to Lee and Yang, Feynman and Gell-Mann A called on Wu to help them confirm rather than disprove a theory. B studied medical sciences instead of physical sciences. C worked on the Manhattan Project in lieu of purely academic…
Read more →What does the expression “freedom can’t be divided” mean in the context of Gandhi’s speech? A. Freedom requires eternal vigilance against imperial powers seeking to regain control. B. It is vital that India speak up, not just for itself,…
Read more →In this sentence from the selection, the word “bounty” can be replaced with A needs. B soils. C spirits. D foods.
Read more →Select the boldface word that better completes each sentence. You might refer to the passage on pages 174-175 to see how most of these words are used in context. 1. Dr. Jekyll into a) transform b) emanate c) enumerate d) alleviate 2. to…
Read more →Based on these two excerpts, bright lights near beaches A) protect sea turtle hatchlings from common nighttime predators such as raccoons. B) confuse sea turtles that depend on moonlight to find safe places to lay their eggs. C) cause sea…
Read more →If you can form a triangle from three given side lengths, will you always get one triangle or more than one triangle? A) Yes B) No C) Sometimes D) Only if the lengths are equal
Read more →What was a primary effect of indentured servitude in the colonies? A It created a decrease in agricultural production. B It caused a shortage of skilled labor in major American cities. C It provided a way for poor Europeans to migrate to…
Read more →Crossing-over of parts of chromosomes: a. has no effect on genetic linkage b. usually decreases the number of genetic combinations c. can increase the number of genetic combinations Crossing-over resulting in the inheritance of altered…
Read more →Select the statement(s) which are true about inherited traits. – Dominant traits hide or mask the other traits. – Traits are passed on through our DNA. – Recessive traits hide or mask the other traits. – Chromosomes contain DNA. – Genes…
Read more →When baby Clara became sick, Anna’s mother called the family “a strong lot.” Later in the story, Anna repeated this. What did she mean by this? A The family had ten members. B The family all survived the flu. C Their father hauled…
Read more →Which of the following accurately explains why the telescopes that detect invisible waves, such as infrared, microwaves, and gamma rays, are placed in space? There are not enough places on land to build observatories that hold large…
Read more →How have telescopes been designed to enable scientists to detect these different wavelengths? – Telescopes have been made bigger, so they can detect more wavelengths. – Telescopes have been made with materials to block out specific…
Read more →What is the main idea of this selection? A) Laughter is usually an expression of a positive emotional state, such as joy, mirth, happiness, or relief. B) Laughter is a common behavior among people in every culture and every region of the…
Read more →Which of the following are units scientists use when describing distances in space? meters kilometers light years astronomical units miles
Read more →Determine if the given sides form a triangle. 3.9 m, 1.9 m, 0.4 m Select the correct choice below, and fill in the answer box to complete your choice. (Type an integer or a decimal.) A. No, because the sum of the lengths of the two…
Read more →The message of this political cartoon is to A support the early Pirate trades. B urge the repeal of the Stamp Act. C alert people of British war crimes. D represent the dangers of the Pony Express.
Read more →How can you determine when it is possible to draw a triangle with given side lengths? A) Use a protractor. B) Use a ruler to measure. C) Add the lengths of any two sides and compare to the length of the third side. D) Only draw it if all…
Read more →During the colonial era, the American south developed very few urban areas, which resulted in a A) system of slavery and forced labor. B) poverty stricken region of peasants. C) strong network of roads that connected isolated areas. D)…
Read more →Which statement about a right triangle is true? The length of each leg equals 1/2 of the hypotenuse. The square of the hypotenuse is equal to the sum of the squares of the legs. One leg is always longer than the hypotenuse. A right…
Read more →This selection is mainly about A) how ancient people were able to move giant blocks of stone with small tools. B) why archaeologists know more about ancient cave paintings than ancient temples. C) why ancient people placed a higher…
Read more →The Manhattan Project was A) an initiative to help the children of hard-working immigrants who lived in crowded cities. B) intended to stop spies from passing along the nation’s strategic secrets during wartime. C) a top-secret U.S.…
Read more →Which statement best summarizes the excerpt? A) Scientists at the time were skeptical of the idea that nuclear fission could be used to build weapons. B) Scientists in Europe succeeded in building the atomic bomb and asked the United…
Read more →This selection is best described as A) science fiction. B) informational nonfiction. C) realistic fiction. D) persuasive nonfiction.
Read more →Choose the sentence from this excerpt that best supports the claim that Klaus Fuchs should not have been allowed to work on the Manhattan Project. 1. Japan was an enemy during World War II; it had continued to fight after its ally,…
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