The following is a sample of 15 IQ scores: 125, 140, 85, 96, 105, 115, 95, 135, 115, 120, 85, 75, 105, 100, 115 QUESTION: What is the point estimate for the standard deviation?
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III. Gramática A. Pedro y Yolanda-Look at the pictures and d…
III. Gramática A. Pedro y Yolanda-Look at the pictures and describe what Pedro and Yolanda did yesterday by writing the appropriate verb in the preterite form. 1. Pedro (lavar la ropa/ pasar la aspiradora) ________________
B. Contrastes-Life is full of contrasts. Complete the follo…
B. Contrastes-Life is full of contrasts. Complete the following descriptions with the appropriate preterite form of the underlined verb. 1. Yo leí Rayuela, pero Jorge no ______ esa novela. 2. Nosotros creímos la noticia, pero usted no ______ esa noticia. 3. Yo contribuí a la victoria del equipo, pero tú no _______ a nuestra victoria. 4. Tú oíste el partido de Argentina en la radio, pero Joel ______ el partido de Uruguay. 5. Nosotros construimos la casa, y ustedes ______ el garaje.
Carbon reacts with hydrogen to form methane according to thi…
Carbon reacts with hydrogen to form methane according to this reaction: C + 2H2 –> CH4 Assume you have 20 grams of carbon and 20 grams of hydrogen. Which is the limiting reactant. Show the calculations to support your answer.
3. Más tarde,_____________
3. Más tarde,_____________
1.______
1.______
C. Después de ir de compras. Emilia has finished shopping a…
C. Después de ir de compras. Emilia has finished shopping and is now speaking with her mother via video chat. Complete the dialogue by choosing the correct verb in each case and conjugating it in the present perfect tense (haber + past participle). (10 points) Modelo- Tú (2. ir / comer)__________en el restaurante de mi padre en tu cumpleaños. Respuesta: has comido Emilia: ¡Mamá! ¿Qué tal? ¡Tengo mucho que contarte! Yo (1. ser / estar) ________________ muy feliz durante mis vacaciones. Mamá: ¡Dime! ¿Adónde (2. ir / hacer) ________________ hoy? Emilia: ¡Fui al centro comercial! Luis y yo (3. estudiar / comprar) ________________ algunas cosas. Mamá: ¡Qué bueno! Y después de ir de compras, ¿ustedes (4. hacer / preferir) _______________ algo más? Emilia: No, pero muy pronto vamos a ir a cenar. Yo no (5. ir / probar) ________________ comida panameña, entonces vamos a un restaurante panameña.
Precipitation reactions in which a solid (called a precipita…
Precipitation reactions in which a solid (called a precipitate) is a product, are commonly used to remove certain ions from solution. One such reaction is as follows: Ba(NO3)2 + Na2SO4 –> BaSO4 + 2NaNO3 How many grams of Na2SO4 are needed to precipitate all the barium ions produced by 83.9 grams of Ba(NO3)2?
Ocean gyres are asymmetrical because of the Coriolis effect.
Ocean gyres are asymmetrical because of the Coriolis effect.
Elemental bromine gas can be generated by reacting sodium br…
Elemental bromine gas can be generated by reacting sodium bromide with elemental chlorine. The other product is sodium chloride. Write a balanced chemical equation for this reaction.