The chemicals PCBs, arsenic, and lead are all examples of ____________________.

An object is moving back and forth on the x-axis according to the equation x(t) = 3sin(20t), t> 0, where x(t) is measured in cm and t in seconds. Give decimal answers below. (a) How many complete back-and-forth motions (from the origin to the right, back to the origin, to the left and finally back to the origin) does the object make in one second? (b) What is t the first time that the object is at its farthest right? (c) At the time found in part (b), what is the object's velocity? (d) At the time found in part (b), what is the object's acceleration? what did the spanish do once in the americas what is centripetal motion DIRECTIONS: Read the selection, and answer the following questions.The Tropics in New YorkClaude McKay Bananas ripe and green, and ginger-root, Cocoa in pods and alligator pears, And tangerines and mangoes and grape fruit, Fit for the highest prize at parish fairs,5 Set in the window, bringing memories Of fruit-trees laden by low-singing rills, And dewy dawns, and mystical blue skies In benediction over nun-like hills. My eyes grew dim, and I could no more gaze;10 A wave of longing through my body swept, And, hungry for the old, familiar ways, I turned aside and bowed my head and wept.--------------------------2. alligator pears: avocados, tropical fruits. All the foods mentioned in this stanza grow in Jamaica, the Caribbean island where the poet was born.6. rills: streams; brooks.8. benediction: blessing.The title of the poem, The Tropics in New York, is ironic because a.it is a very unusual title for a poemb.sometimes it gets extremely hot in New Yorkc.we dont expect to find the tropics in New Yorkd.the weather is a lot nicer in the tropics If there are 24 boys and 36 girls in a room, fill out all of the possible ratios of boys togirls that could be made.There are 24 boys for every 36 girls (24:36 ratio)There are boys for every girls tryType in an equivalent ratio of boys and girls What Is f(0) ? Choices12 only 2 and 3 only -2, -1, 1, and 2 only -2, -1, 1 2 and 12 If a polygon is a pentagon, then it has 5 sides hypothesis conclusion what is Inhabited prefix suffix and root Choose the best word to complete the sentence from the vocabulary list above. Stanley's hands became ____________________________ after weeks of hard work. perseverance desolate preposterous intensity engraved chronology paranoid evict callused refuge concoctions Which property of a substance can be determined using a pH indicator. Which expression represents 7 less than a number 4Gears A and B turn together. Gear A turns 40 times when Gear B turns 60 times. When Gear A turns 160 times,how many times does Gear B turn?160 times180 times240 times300 times Which of the following best describes the number 1.234?a. IntegerSelected:b. WholeThis answer is incorrect.c. Irrationald. Naturale. Rational Umm i need help and i forgot to put the picture da first time so yeaa The sum of three consecutive odd numbers is 297, what are they? Create an equation and solve. 3-2/7 divided by 1-1/4 Escribe el pronombre y la forma REFLEXIVA del verbo en parntesis1.Ella siempre _____________(quejarse) de la comida que sirven.2.Los nios ______________(acostarse) a las nueve todas las noches.3.Nosotros ______________(divertirse) cuando fuimos a Chile.4. Su madre ____________(llamarse) Claudia.5.Ellos _____________(sentarse) juntos cuando fueron al tea plz help answer both will mark brainest Honeywag common stock is expected to pay $1.85 in dividends next year, and the market price is projected to be $42.50 per share by year-end. If investors require a rate of return of 11 percent, what is the current value of the stock? What was the political relationship between the Kingdom of Kush and Egypt?Egypt and Kush were never truly independent.The two nations competed for control over Nubia.The two kingdoms had few links besides geography.Kush and Egypt shared cultures and constantly worked together.