Brainarium

• MAT250_TW_V4 • Topic 7: Applications of Differentiations Started on Wednesday, March 5, 2025, 2:33 PM State Finished Completed on Wednesday, March 5, 2025, 2:40 PM Time taken 6 mins 25 secs Grade 20.00 out of 20.00 (100%) Question 1 Correct 2.00 points out of 2.00 Flag question Question text A baseball diamond has the shape of a square with sides 9090 feet long. A player is running from second to third at a speed of 28ft/sec28ft/sec. At the time he is 3030 feet from third, wha...

• MAT250_TW_V4 • Topic 5: Implicit Differentiation Started on Wednesday, March 5, 2025, 2:08 PM State Finished Completed on Wednesday, March 5, 2025, 2:18 PM Time taken 10 mins 5 secs Grade 49.50 out of 55.00 (90%) Question 1 Correct 2.75 points out of 2.75 Flag question Question text Calculate f′(x)f′(x) if f(x)=2x9+8x3+5f(x)=2x9+8x3+5. Select one: a. 18x8+8x3+518x8+8x3+5 b. 18x8+24x2+518x8+24x2+5 c. 18x8+24x218x8+24x2 d. 18x8+24x18x8+24x Question 2 Correct2.75 po...

• MAT250_TW_V4 • Topic 4: Computational Techniques Started on Wednesday, March 5, 2025, 1:51 PM State Finished Completed on Wednesday, March 5, 2025, 1:58 PM Time taken 6 mins 52 secs Grade 20.00 out of 20.00 (100%) Question 1 Correct 2.00 points out of 2.00 Flag question Question text What is the derivative of the function f(x)=x−−√+x−−√3f(x)=x+x3? Select one: a. x2+x3x2+x3 b. x2+3x2+3 c. 12x−1/2+13x−2/312x−1/2+13x−2/3 d. x−−√2+x−−√33x2+...

• MAT250_TW_V4 • Topic 3: Derivatives Started on Wednesday, March 5, 2025, 1:33 PM State Finished Completed on Wednesday, March 5, 2025, 1:50 PM Time taken 16 mins 39 secs Points 96.67/100.00 Grade 96.67 out of 100.00 Question 1 Correct 3.33 points out of 3.33 Flag question Question text The given region is the combination of a semicircle with radius 66 cm and a square with side length 1212 cm. Find the area of the given region using the formula for the area of a circle, A=πr...

• MAT250_TW_V4 • Topic 2: Limits and Continuity Started on Wednesday, March 5, 2025, 1:22 PM State Finished Completed on Wednesday, March 5, 2025, 1:32 PM Time taken 9 mins 34 secs Grade 52.25 out of 55.00 (95%) Question 1 Correct 2.75 points out of 2.75 Flag question Question text What is the equation for the volume of a right-circular cone in terms of the height of the cone and the radius of the base? Select one: a. V=πr2h3V=πr2h3 b. V=4πr33V=4πr33 c. V=πrh23V=πrh...

• MAT250_TW_V4 • Topic 1: Preliminaries and Functions Started on Wednesday, March 5, 2025, 1:17 PM State Finished Completed on Wednesday, March 5, 2025, 1:22 PM Time taken 4 mins 38 secs Grade 20.00 out of 20.00 (100%) Question 1 Correct 2.00 points out of 2.00 Flag question Question text A particular rectangle has a length of 33 feet and a width of 22 feet. What is the area of the described rectangle? Select one: a. 33 square feet. b. 1010 square feet. c. 55 square feet....

• MAT250_TW_V4 • Topic 8: Curve Sketching Started on Wednesday, March 5, 2025, 2:42 PM State Finished Completed on Wednesday, March 5, 2025, 2:57 PM Time taken 15 mins 55 secs Grade 44.00 out of 55.00 (80%) Question 1 Incorrect 0.00 points out of 2.75 Flag question Question text Given f(x)=2x2−8−−−−−−√f(x)=2x2−8, which of the following is the best to use as x0x0 when determining the value of f(5.5)f(5.5) by the method of linear approximation? Select one: a. ...

• MAT250_TW_V4 • Topic 6: Dealing with Indeterminate Forms Started on Wednesday, March 5, 2025, 2:20 PM State Finished Completed on Wednesday, March 5, 2025, 2:32 PM Time taken 12 mins 16 secs Grade 86.67 out of 100.00 Question 1 Correct 3.33 points out of 3.33 Flag question Question text Compute dydxdydx for y=x2+1−−−−−√+1x2+1−−−−−√y=x2+1+1x2+1. Select one: a. x(1+x2)−1/2+x(1+x2)−3/2x(1+x2)−1/2+x(1+x2)−3/2 b. x3(1+x2)−1/2x3(1+x2)−1/2 c. ...

• BIO202L LAB_V4 • Lab 18 The Reproductive System Started on Monday, 3 March 2025, 9:14 PM State Finished Completed on Monday, 3 March 2025, 9:19 PM Time taken 4 mins 37 secs Grade 13.50 out of 15.00 (90%) Question 1 Correct Mark 1.50 out of 1.50 Flag question Question text Which female organ(s) are homologous to the male testes? Select one: a. The uterus. b. The ovaries. c. The vagina. d. The fallopian tubes. Question 2 CorrectMark 1.50 out of 1.50 Flag question Que...

• BIO202L LAB_V4 • Lab 17 Nutrition Started on Monday, 3 March 2025, 9:20 PM State Finished Completed on Monday, 3 March 2025, 9:27 PM Time taken 6 mins 59 secs Grade 12.00 out of 15.00 (80%) Question 1 Correct Mark 1.50 out of 1.50 Flag question Question text Which of the following is not a macronutrient? Select one: a. Carbohydrates b. Fibers c. Proteins d. Minerals Question 2 CorrectMark 1.50 out of 1.50 Flag question Question text The myelin sheath surrounding n...

• BIO202L LAB_V4 • Lab 16 The Digestive System Started on Monday, 3 March 2025, 9:39 PM State Finished Completed on Monday, 3 March 2025, 9:49 PM Time taken 9 mins 22 secs Grade 13.50 out of 15.00 (90%) Question 1 Correct Mark 1.50 out of 1.50 Flag question Question text Which of the following is NOT a component of the oral cavity? Select one: a. Gums b. Tongue c. Teeth d. None, these are all components of the oral cavity. Question 2 CorrectMark 1.50 out of 1.50 Flag ...

• BIO202L LAB_V4 • Lab 15 Electrolytes, Water, Acids, and Bases Started on Monday, 3 March 2025, 9:28 PM State Finished Completed on Monday, 3 March 2025, 9:35 PM Time taken 7 mins 7 secs Grade 15.00 out of 15.00 (100%) Question 1 Correct Mark 1.50 out of 1.50 Flag question Question text One role of electrolytes is serve as a cofactor for enzymes. Select one: a. True b. False Question 2 Correct Mark 1.50 out of 1.50 Flag questionQuestion text A buffer is a solution that...

• BIO202L LAB_V4 • Lab 14 The Urinary System Started on Monday, 3 March 2025, 9:06 PM State Finished Completed on Monday, 3 March 2025, 9:13 PM Time taken 7 mins 13 secs Grade 13.50 out of 15.00 (90%) Question 1 Incorrect Mark 0.00 out of 1.50 Flag question Question text The urinary bladder is a muscle. Select one: a. True b. False Question 2 Correct Mark 1.50 out of 1.50 Flag question Question textWhich of the following is NOT true regarding nervous system regulation o...

• BIO202L LAB_V4 • Lab 13 The Respiratory System Started on Monday, 3 March 2025, 8:58 PM State Finished Completed on Monday, 3 March 2025, 9:05 PM Time taken 7 mins 12 secs Grade 15.00 out of 15.00 (100%) Question 1 Correct Mark 1.50 out of 1.50 Flag question Question text Which of the following is NOT a role of the larynx? Select one: a. Provides a patent airway. b. Functions in voice production. c. Routes air and food into the proper channels. d. Permits gas exchange....

• BIO202L LAB_V4 • Lab 12 The Lymphatic System and Immunity Started on Monday, 3 March 2025, 8:50 PM State Finished Completed on Monday, 3 March 2025, 8:57 PM Time taken 6 mins 36 secs Grade 13.50 out of 15.00 (90%) Question 1 Correct Mark 1.50 out of 1.50 Flag question Question text Acquired immunity that a fetus obtains from maternal antibodies that cross the placenta is called: Select one: a. Artificially acquired natural immunity. b. Naturally acquired passive immunity. ...

• BIO202L LAB_V4 • Lab 11 The Circulatory System Started on Monday, 3 March 2025, 8:42 PM State Finished Completed on Monday, 3 March 2025, 8:50 PM Time taken 7 mins 9 secs Grade 12.00 out of 15.00 (80%) Question 1 Correct Mark 1.50 out of 1.50 Flag question Question text The tunica adventitia is the innermost layer of arteries. Select one: a. True b. False Question 2 Correct Mark 1.50 out of 1.50 Flag question Question textHow are veins different than arteries? Select...

• BIO202L LAB_V4 • Lab 10 Blood and the Heart Started on Monday, 3 March 2025, 8:36 PM State Finished Completed on Monday, 3 March 2025, 8:42 PM Time taken 5 mins 19 secs Grade 15.00 out of 15.00 (100%) Question 1 Correct Mark 1.50 out of 1.50 Flag question Question text Erythrocytes transport oxygen, but not carbon dioxide. Select one: a. True b. False Question 2 Correct Mark 1.50 out of 1.50 Flag questionQuestion text What type of blood cell is responsible for blood c...

• BIO201L LAB_V4 • Lab 7 The Muscular System Started on Wednesday, 26 February 2025, 8:40 PM State Finished Completed on Wednesday, 26 February 2025, 8:47 PM Time taken 7 mins 18 secs Grade 12.00 out of 15.00 (80%) Question 1 Correct Mark 1.50 out of 1.50 Flag question Question text What is the functional purpose of calcium (Ca2+) in muscle contraction? Select one: a. To cause a positional change in troponin. b. To cause a positional change in actin. c. To cause a position...

• BIO201L LAB_V4 • Lab 9 The Endocrine System Started on Monday, 3 March 2025, 8:28 PM State Finished Completed on Monday, 3 March 2025, 8:33 PM Time taken 5 mins 4 secs Grade 15.00 out of 15.00 (100%) Question 1 Correct Mark 1.50 out of 1.50 Flag question Question text Prolactin, a hormone produced by the pituitary gland, initiates and maintains milk production in breasts. Select one: a. True b. False Question 2 Correct Mark 1.50 out of 1.50 Flag questionQuestion text ...

• BIO201L LAB_V4 • Lab 8 The Nervous System Started on Friday, 28 February 2025, 2:06 PM State Finished Completed on Friday, 28 February 2025, 2:13 PM Time taken 6 mins 59 secs Grade 13.50 out of 15.00 (90%) Question 1 Correct Mark 1.50 out of 1.50 Flag question Question text Which of the following structure connects the right and left cerebral hemispheres? Select one: a. Longitudinal Fissure b. Fourth Ventricle c. Corpus Callosum d. Medulla Oblongata Question 2 Correc...