Questions and answers by

burnout

Questions (1,034)

Multiply (5−10i)(−3+8i)(1 point)
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Evaluate the subtraction (13+−225−−−−√)−(49−−√−2i). Provide the answer in the form of a+bi .(1 point)
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Use the properties of complex numbers to simplify (9+−4−−−√)+(−9−−16−−−−√).(1 point) Responses
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Solve the equation for x: 1x−5=1x+3+x−1x2−2x−15.(1 point) Responses x=1 x equals 1 x=5,−3 x equals 5 comma negative 3
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What is the solution(s) of the equation 9z+9z−2=12?(1 point) Responses 12 Start Fraction 1 over 2 End Fraction 12 and 3 Start
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What is the solution(s) of the equation 9z+9z−2=12?(1 point) Responses 12 Start Fraction 1 over 2 End Fraction 12 and 3 Start
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Express in simplest form: 2y2−2xyx2−y2.(1 point) Responses −2x Start Fraction negative 2 over x End Fraction −2yx+y
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11 of 4011 of 40 ItemsQuestion What is the smallest degree a polynomial with five relative minima and six relative maxima could
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Algebra 2A Semester Exam10 of 4010 of 40 Items Question Sketch f(x)=2x4−6x3−8x2 . How does the graph behave at the zeros of
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Factor the following high-degree polynomial completely.13x11−117x3 (1 point) Responses 13x3(x4−92)(x4+92) 13 x cubed left
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Which of the following is a complete set of real solutions to the equation 2x3−3x2+8x−9=3?(1 point)Responses 1.5 1.5 no
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Trayvon was asked to construct a polynomial function with the following zeros and multiplicities. Which function should he
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Jamar wants to generate a Pythagorean triple when x equals 12 and y equals 9 using the polynomial identity
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Use the image to answer the question.A parallelogram has its length labeled x-squared plus 2 and its width labeled x plus 1. It
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Perform the operation(s) and simplify completely.−(2x+6)(3x+4)+5x2−7x (1 point) Responses −x2+3x+24 negative x squared
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Which synthetic division shows how to find the quotient?8x3+6x2−18x+4÷4x−1 (1 point) Responses A synthetic division display
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32 of 3232 of 32 ItemsQuestion Two workers are pushing on the same large crate. One worker pushes east with a force of 875 N,
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31 of 3231 of 32 ItemsQuestion Use this graph to answer the question. A velocity versus time line graph. Which statement about
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30 of 3230 of 32 ItemsQuestion Use the equation of motion to answer the question. x=x0 +v0t + 12at2 An object has a starting
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29 of 3229 of 32 ItemsQuestion Use the graph of an object's velocity over time to answer the question. An illustration shows the
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28 of 3228 of 32 ItemsQuestion On a position vs. Time graph for an object, horizontal line segment indicates the object is(1
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27 of 3227 of 32 ItemsQuestion Which statement is true about speed and velocity?(1 point) Responses Speed is a scalar quantity
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26 of 3226 of 32 ItemsQuestion During a game of handball, you strike the ball with a mass of 0.06 kg, and it accelerates to the
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25 of 3225 of 32 ItemsQuestion The gravitational force of a lunar rover is 1,607.2 Newtons on Earth. What will the rover's
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QuestionHoward leans back against a wall with 50 N of force. According to Newton's Thirda Law of Motion, what force is being
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A rocket motor is used for different model rockets that have different masses. The results of tests for a rocket motor are shown
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22 of 3222 of 32 ItemsQuestion During a game of tug-of-war, two students are pulling on a rope. One student pulls to the left
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21 of 3221 of 32 ItemsQuestion What does water's high specific heat capacity explain about water?(1 point) Responses why water
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20 of 3220 of 32 ItemsQuestion Identify the location within a plant cell where the light-dependent reaction to photosynthesis
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19 of 3219 of 32 ItemsQuestion What are condensation and evaporation components of?(1 point) Responses photosynthesis
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18 of 3218 of 32 ItemsQuestion When iron pipes come in contact with water and oxygen, iron transfers electrons to the oxygen
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17 of 3217 of 32 ItemsQuestion Use the generalized equation to answer the question. A + BC → B + AC Which type of reaction is
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16 of 3216 of 32 ItemsQuestion Which generalized equation represents a double-replacement reaction?(1 point) Responses A + B →
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15 of 3215 of 32 ItemsQuestion Under certain conditions, water can be separated into oxygen and hydrogen gases according to the
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An illustration shows the periodic table of elements. The elements in the periodic table are arranged in groups (columns
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An illustration shows the periodic table of elements with elements arranged in increasing order of atomic number in 18 columns
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Which statement best describes a weak base?(1 point)Responses It accepts protons and only partially disassociates in water. It
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11 of 3211 of 32 ItemsQuestion In an experiment involving a balloon, a scientist notices that the gas particles within the
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10 of 3210 of 32 ItemsQuestion A person is drinking a glass of soda with ice. Which option describes the relative kinetic energy
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Use the diagram of the molecular structure of lactic acid to answer the question.An illustration shows the structure of lactic
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An illustration shows the structure of the chlorophyll molecule as a long chain of carbon atoms forming hexagonal and pentagonal
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Use the periodic table to answer the question.An illustration shows the periodic table of elements. Which of the following
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6 of 326 of 32 ItemsQuestion Hydrogen is in Group 1 of the periodic table. Which kind of bond would form between two hydrogen
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5 of 325 of 32 ItemsQuestion How did the study of the atom contribute to our understanding of the periodic table of elements?(1
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4 of 324 of 32 ItemsQuestion How does the Schrodinger model differ from the Bohr model of an atom?(1 point) Responses It shows
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3 of 323 of 32 ItemsQuestion Why is it important to cite empirical evidence when making claims or justifying an
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Use the sentence to answer the question.Light is affected by gravity. Which inference can be made based on this fact? (1 point)
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1 of 321 of 32 ItemsQuestion You read a social media post making a claim. How do you identify its trustworthiness?(1 point)
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Force and Motion Unit Test14 of 1814 of 18 Items Question Which state of equilibrium is a person in while running on a
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Force and Motion Unit Test13 of 1813 of 18 Items Question A helicopter is accelerating up into the air while it is also
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Force and Motion Unit Test12 of 1812 of 18 Items Question The harder a gas pedal in a car is pressed, the faster the car’s
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Force and Motion Unit Test11 of 1811 of 18 Items Question The same type of engine is placed in two different airplanes. The
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Use the graph to answer the question.A velocity versus time line graph shows three lines. The vertical axis is labeled,
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Use the graph of velocity vs. time for an object to answer the question.A line graph that displays the change in velocity over
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Force and Motion Unit Test8 of 188 of 18 Items Question A spring scale shows a net force of 0.8 N acting on a 1.5-kg mass. What
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Force and Motion Unit Test7 of 187 of 18 Items Question A dog weighing 18 kg runs into a park at a velocity of .63 m/s. What is
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A stone with a mass of 10 kg sits on the ground. Gravity acts on the stone at a rate of 9.8 m/s2. What is the normal force
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Force and Motion Unit Test5 of 185 of 18 Items Question Two construction workers are attempting to pull a slab of concrete off
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Force and Motion Unit Test3 of 183 of 18 Items Question Which statement correctly classifies distance and displacement?(1 point)
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A cat wakes up in its bed and visits its food dish to the left of its bed.Positions to the right of its bed are assigned a
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A hamster in a ball begins its journey 5 feet to the left of a refrigerator, travels 20 feet to the right of the refrigerator,
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Find the simile in the passage and type it into your response.My mom sighs. "We can't do this without you. Being around kids is
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The root pens means weigh out or distribute. What does the word recompense mean?(1 point)Responses To give money to a person for
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The root greg means group. What does the word aggregation mean?(1 point)Responses An ordering of events An ordering of events A
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Which sentence displays correct subject verb agreement?(1 point)Responses My collection of stamps is extensive. My collection of
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Read the following story.Cody liked the freedom that came with his first summer job. He worked at Mitchell's Farm, where people
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Select the gerund or gerund phrase.A number of wildlife websites feature a live camera stream from the Bifengxia Panda Base in
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Identify the sentence in the active voice and the sentence in the passive voice.(2 points) Active Voice Passive Voice Several
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Use the sentences to answer the question.Joe trained all summer long. As a result, he made the track team. Which type of
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Which graphic best supports an explanatory text about how to prepare a recipe?(1 point)Responses A chart that shows types of
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Read the text.There are several ways to start a fire without matches or a lighter. One method uses a wooden board and a two foot
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Use the sentence to answer the question.Self driving cars can help reduce traffic. Which heading in an informative text about
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Select the best evidence to support the statement that in the late 1800s a law made it easier for magazine companies to do
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Which of the following is one main benefit of having a group discussion?* arguing with others having a strong opinion having to
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Which part of the introductory paragraph states the ideas that will be described in an informative text?* the thesis the hook
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Which sentence has proper subject-verb agreement?* Hope, peace, and love is achievable for everyone. The members of the French
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Use the sentence to answer the question.“Many mistakes were made today,” the coach said after the team’s loss. Which
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Which sentence contains a gerund?* Playing baseball with his friends, Noah decided he needed a new bat and glove. Some baseball
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Use the sentences to answer the question.Many people believe a European named Johannes Gutenberg invented the printing press.
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What is a conclusion in a narrative?* a final paragraph in a narrative that contains most of the supporting details. an opening
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Use the paragraph to answer the question:It happens way too often: oil leaking from wells beneath the ocean or tankers spilling
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Which sentence contains an example of alliteration?* The shop was filled with brightly colored flowers. The owner of the shop
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What is the purpose of transition words and phrases in a narrative?* to reveal key vocabulary in a narrative. to help reveal
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Use the paragraph to answer the question:The platypus is an Australian mammal that is not easily classified. It is one of only
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Unit 8a Forces and Motion Study GuideTIP: You MAY use this study guide and the periodic table on your test. Do not use Brainly
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Build an equation to calculate the surface area of a equilateral triangular prism
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"The wind whispered secrets through the trees as the moon cast a silvery net across the quiet lake."What type of figurative
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"Many animals migrate seasonally. For instance, birds like the Arctic Tern travel thousands of miles to find warmer climates.
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"Jamie looked out the window, watching the rain pour down. She felt a mix of sadness and relief. Her brother, Alex, on the other
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"Emily always felt out of place until she found a group of friends who accepted her for who she was. With their support, she
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"In a small village, a young girl named Lily was determined to bring clean water to her community. Despite many challenges, she
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"The sun dipped below the horizon, painting the sky in hues of orange and pink. As darkness crept in, Emily sat by the window,
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Differentiate foreign investment from the types of aid provided by the UNDP and World Bank, citing specific examples of aid from
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The Global Economy Unit Test14 of 1814 of 18 Items Question If the United States and Canada enter into a trade deal that allows
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The Global Economy Unit Test13 of 1813 of 18 Items Question Which of the following trends have followed globalization? Select
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The Global Economy Unit Test12 of 1812 of 18 Items Question How can a difference in Gini coefficients for the United States and
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The Global Economy Unit Test11 of 1811 of 18 Items Question Which of the following explains how foreign portfolio investment
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The Global Economy Unit Test9 of 189 of 18 Items Question Which of the following measures are used to assess aspects of a
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The Global Economy Unit Test10 of 1810 of 18 Items Question Country A has a GDP of $60,000,000, and Country B has a GDP of
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The Global Economy Unit Test8 of 188 of 18 Items Question Which of the following correctly explains how the dollars-per-euro
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