-
Math related rates
Water is poured into a conical paper cup at the rate of 3/2 in3/sec (similar to Example 4 in Section 3.7). If the cup is 6 inches tall and the top has a radius of 4 inches, how fast is the water level rising when the water is 2 inches deep? I got
-
math
1. Which exponent makes the statement true? 1/5^9 = 5^? a. 9 b. -9 c. 1/9 d. - 1/9 2. y^5 x y^14 = a. 2y^19 b. y^60 c. y^19 d. 2y^60 3. w^12/w^18 = a. w^30 b. w^-30 c. w^6 d. w^-6 5. 5^5/5^2 = a. 5^1 b. 5^2 c. 5^3 d. 5^4 Please help me this is all like
-
Physics
A brick is thrown upward from the top of a building at an angle of 25° to the horizontal and with an initial speed of 15m/s. If the brick is in the flightfor 3.0 s, how tall is the building?
-
Math
1. Rosa, Roberto, Andrea, and Inno find an estimate for square root 10. Who has proposed the best solution? (1 point) Rosa: "Use square root 9 and square root 25 to estimate." Roberto: "I will use square root 4 and square root 9." Andrea: "It should be
-
Physics
Sally has a mass of 50.0kg and earth has a mass of 5.98X10^24kg. The radius of earth is 6.371x10^6m. A)What is the force of gravitational attraction between sally and earth? B)What is Sally's weight?
-
biology
Blood is taken to the lungs to become oxygenated and returned to the heart before being pumped through the body. Which blood vessels carry blood away from the heart? elastic capillaries veins arteries*** Oxygen is taken into the body from the environment,
-
Algebra
Is(0,3) a solution to the equation y=x+3 A. Yes B. No*** Is (1,4) a solution to the equation y= -2x A. Yes*** B. No Look at the following points (4,0) (3,1) (6,3) (2,-4) Which are the solutions to y= x-4? Choose all the correct answers A.(6,3) B.(4,0)***
-
math
If the legs of a right triangle have lengths of 6 inches and 8 inches, what is the length of the hypotenuse in inches? A.11 B.13 C.10 D.16 Is the answer C?
-
physics
The 2.0 kg wood box in the figure(Figure 1) slides down a vertical wood wall while you push on it at a 45 ∘ angle. The coefficient of kinetic friction of wood on wood is μk = 0.200. What magnitude of force should you apply to cause the box to slide down
-
Technology
1. Why is it important to evlauate the website on which you plan to shop? O It may not have a fast enough Internet connection for your order to go through. O It may not be trustworthy, and you risk identity theft. + It may be out of stock of that item that
-
Science
which statement explains the relationship between the amount of energy it takes to break a bond and the amount of energy released when the same bond is formed?
-
physics
While standing at the edge of the roof of a building, you throw a stone upward with an initial speed of 6.93 m/s. The stone subsequently falls to the ground, which is 17.1 m below the point where the stone leaves your hand. At what speed does the stone
-
Earth Science
1. The oldest of Hawaii's volcanic islands are those that A.are on top of the hotspot. B.are a short distance past the hotspot. C.are the farthest distance from the hotspot. D. have not yet reached the hotspot. 2. 2. Which is caused by the difference in
-
CHEMISTRY
What pressure (in atm) would be exerted by 76 g of fluorine gas in a 1.50-liter vessel at -37oC
-
SOCIAL STUDIES (CHECK ANSWERS) ASAP
1. Which of the following responsibilities are held by the legislative, rather than the executive branch? Select two answers. A) writing and voting on new laws**** B) providing social programs to citizens C) selecting new judges for federal courts D)
-
Adding Graphic and Multimedia quick check
What is the purpose of adding graphics and multimedia to informational texts? (1 point) A to remove difficult vocabulary from a text B to clarify certain kinds of information for ease of understanding C to reduce the amount of information for the reader D
-
biology
What is the role of the nervous system in digestion? a.to provide oxygen b.to provide electrical signals to initiate peristalsis c.to provide enzymes d.to provide passage of nutrients throughout the body
-
SCIENCE
In which form of reproduction will pieces of the parent develop into identical copies of the parent A. Fragmentation B. Binary fission C. Vegetative reproduction D. Budding
-
Biology quick check
Questions: 1.If the sequence of bases on the mRNA codon is AUU, what would be the sequence of bases on the opposite strand assembled by the tRNA? 2.The endomembrane system is a collection of membrane-bound organelles in eukaryotic cells that handles the
-
science
Which of the following is an example of kinetic energy transfer?
-
algebra
Which set represents a Pythagorean triple? 27, 38, 42 33, 44, 55 35, 38, 42 68, 72, 81 Which number completes the Pythagorean triple: 12, 16, ____? 18 20 22 24 A base ball diamond is square. The distance from home plate to first base is 90 feet. In feet,
-
MATH plz help
what is the first step to evaluate this expression? 7^3 - 4 * 3 + 8 A. Exponent B. Subtraction C. Multiplication D. Addition
-
science
Which option is an example of an automatic regulatory reaction? sweating*** taking in more calories burrowing underground wearing a jacket What is the correct order of events for cellular respiration? Krebs cycle → glycolysis → electron transport chain
-
Cell Structures Quick Check
Questions: 1.Why are lysosomes important to the health of cells? 2.Which of the following organelles provide structure and rigidity to a plant cell? 3.What would happen to a plant if the chloroplasts in its cells became damaged? 4.A cell sends messages to
-
Biology
Can someone check my answers on Conexus Unit 3 Lesson 8 please! 1) Infer a disadvantage of a 2D model of the digestive system.(1 point) a. difficulty identifying organs b. difficulty determining the texture of organs*** c. difficulty determining the
-
Science
Which features do most stratovolcanoes and cinder cone volcanoes have in common? violent eruptions and thin, flowing lava broad base with quiet eruptions steep sides and violent eruptions wide dome shape and thick lava Which statement identifies a major
-
PLEASE HELP ASAP!!!!
A spiral galaxy can be described as what type of shape?(1 point) oval triangular no distinct shape pinwheel What lies at the center of the Milky Way galaxy?(1 point) the sun a black hole Earth North Star How are asteroids and comets similar?(1 point) Both
-
Algebra
2. The table shows the heights in inches of trees after they have been planted. What is the height of a tree that is 64 in. Tall in its pot A. 42 in B. 52 in C. 60 in D. 76 in 3. Which ordered pair is a solution to y=8x A. 0,8 B. -1,8 C. 1.5,10 D. 2,16 4.
-
English
Multiple Choice Choose the meaning of the bold word in each passage. 1. The MAGNITUDE of the disaster is hard to imagine. (1 point) size*** pain debris effect 2. The EPICENTER of the 9.0 magnitude quake was under the Indian Ocean near the west coast of the
-
Science
1.) Where is most of the baryonic matter (ordinary matter) of the universe found?(1 point) > in interstellar gases and stars > in planets and natural satellites > in dark matter and dark energy > in comets and asteroids 2.) When parts of a gas cloud
-
Physics
Bob is pulling a 30kg filing cabinet with a force of 200N , but the filing cabinet refuses to move. The coefficient of static friction between the filing cabinet and the floor is 0.80. What is the magnitude of the friction force on the filing cabinet?
-
Spanish--1 question
Why is it not always necessary to include a subject pronoun before the verb in Spanish?
-
physics
A large box of mass M is pulled across a horizontal, frictionless surface by a horizontal rope with tension T. A small box of mass m sits on top of the large box. The coefficients of static and kinetic friction between the two boxes are μs and μk,
-
Chemistry
How many grams of KOH are needed to neutralize 12.9 mL of 0.16 M HCl in stomach acid?
-
English
What is a transition?(1 point) A. a change from one subject or stage to another*** B. the flow of a person's thoughts C. a method used to manage work D. a thought or understanding Which type of relationship does the transition phrase "as well as"
-
physics
A small block has a horizontal velocity of 4.00 m/s as it slides off the edge of a table. The table is a vertical distance of 0.95 m above the floor. If g = 9.80 m/s2, how far does the block travel horizontally while it is in the air?
-
science
Which result occurs during an exothermic reaction? A.Light is released into the environment, while heat is absorbed. B.Light and heat are absorbed from the environment. C.Heat is released into the environment, while light is absorbed. D.Light and heat are
-
Science
In bacteria, binary fission can be modeled in(1 point) four stages. three stages. one stage. two stages. The process by which a modified stem or root of a parent plant grows offspring that remain attached is called(1 point) fragmentation. vegetative
-
Social studies, help
How did advancements during the Gupta period transform mathematics? A. They invented algebra.**** B. They created the concepts of square numbers and square roots. C. They developed a decimal system with a numeral for zero. D. They made progress in
-
Science
Modeling Nuclear Processes Quick Check: Which phrase best describes nuclear fusion? (❌)a series of reactions in which particles from one reaction trigger the next reaction (❌)the spontaneous emission of radiation from an unstable nucleus (✔️)the
-
Math Help!!!
what is the solution to square root -75 to the nearest integer? 9******* 8 -8 -9
-
Algebra/Math
What is the sum of 5/6 + 2/3? My answer is 1 1/2. Cody has 6 1/2 boxes of candy to share at a picnic. If he gives each person 1/3 of a box, how many people can receive candy? My answer is 19. Which of these are not rational? a.3 squared. b.1/5 c.9 squared
-
probablity
Let X,Y,Z be independent discrete random variables with E[X]=2, E[Y]=0, E[Z]=0, E[X^2]=20, E[Y^2]=E[Y^2]=16, and Var(X)=Var(Y)=Var(Z)= 16. Let A=X(Y+Z) and B=XY. 1.Find E[B]. 2.Find Var(B). 3.Find E[AB]. 4. are A and B independent? 5.Are A and B are
-
Social Studies
In North Africa, overgrazing has contributed to which environmental challenge? A. Deforestation B. Desertification C. Lack of clean water D. Climate change Use the drop down menu to complete the sentence. Tense relations between the Hausa people and the
-
Physics
Salmon often jump waterfalls to reach their breeding grounds. Starting 2.00 m from a waterfall 0.55 m in height, at what minimum speed must a salmon jumping at an angle of 32.0 degrees leave the water to continue up stream? help plz...stuck....thx
-
algebra
write an equation for: the number of triangles is 1/3 the number of sides Y = 1/3X
-
English
My friend Jorge can play the guitar and sing. play is underlined would this be: part of a compound subject part of a compound verb phrase- part of a simple predicate I think its b.
-
math
517.3 km = __ m.
-
CIRCUITS 2
Two relays each with 20 ohms resistance and 0.16 henry inductance are connected in series. What is the equivalent impedance?
-
lab math
A 5 N solution is diluted 1:4. The resulting solution is diluted 4:15. What is the concentration in normality of the final solution?
-
Geometry
Points A (-10,-6) and B (6,2) are the endpoints of AB. What are the coordinates of point C on AB such that AC is 3/4 the length of AB? a. (0,-1) b. (2,0) c. (-2,-2) d. (4,1)
-
science
What do you think the maximum and optimum carrying capacities for humans are? Why is this a more complex question for humans than it might be for other species? Why is designing experiments in human demography difficult?
-
chemistry
1. In the reaction 2Ca(s) + O2(g) → 2CaO(s), which species is oxidized?
-
scinece
Fossils found in layers of sediment give us clues to Earth's past. Based on the fossil record of this area, we can assume that this area was A) once a desert. B) once underwater. C) much colder in the past. D) located in a different place on Earth. 2)
-
History (US)
Use the passage to answer the question. From the Journal of John Ordway November 30, 1804 "He Informed us that a party of the Sauix nation had atcked a party of the Mandans. they killed 1 man on each Side Several more wounded, but the Souix Robbed the
-
science
Lila tests the pH of 4 solutions. Which solution should she identify as being a base?
-
Physics
Michael Jordan was said to have a hang time of 3 seconds. Use kinematic equations to determine the height to which MJ could leap if he had a hang time of 3 seconds. Hint: You are solving for distance!
-
Calculus
Two sides of a triangle are 4 inches long. What should be the angle between these sides to make the area of the triangle as large as possible?
-
history
PLEASE I NEED HELP!!!!!!!!!!!!!! I just need a general outline and I can write the actual essay Respond to one of the following prompts A. regionalism is a form of realism that emphasizes realistic settings using local dialect customs and other specific
-
maths
The half-life of lead is 22 years. How long will it take for a sample of this substance to decay to 80% of its original amount
-
math
Determine whether each sequence is arithmetic or geometric. Find the next three terms. 1. 14, 19, 24, 29, . . . (1 point) geometric, 34, 39, 44 arithmetic, 32, 36, 41 arithmetic, 34, 39, 44 *** The sequence is neither geometric nor arithmetic. 2. –4, 8,
-
differential calculus
a SECURITY CAMERA is centered 50 feet above a 100-foot hallway. it is easiest to design the camera with a constant angular rate of rotation, but this results in a variable rate at which the images of the surveillance area are recorded. so, it is desirable
-
psychics
A hiker leaves her camp and walks 3.5 km in a direction of 55° south of west to the lake. After a short rest at the lake, she hikes 2.7 km in a direction of 16° east of south to the scenic overlook. What is the magnitude of the hiker’s resultant
-
physics
The initial speed of a body is 2.43 m/s. What is its speed after 3.07 s if it accelerates uniformly at 3.23 m/s2? Answer in units of m/s. What is its speed after 3.07 s if it accelerates uniformly at −3.23 m/s2? Answer in units of m/s.
-
physics
A billiards ball of mass 0.4kg strikes another, initially stationary ball of the same mass. The first ball is deflected and travels at an angle of 30∘ with its original direction. Its initial speed was 12m/s and after the collision, it is 8m/s.
-
Science
Is the South American Plate and African Plate convergent continent to continent boundary?
-
Biology - Photosynthesis: Energy Conversion Quick
1. ATP and photovoltaic cells are similar because a. they both produce chemical and electrical energy. b. they are both key components of solar panels. c. they both use energy transport chains.*** d. they are both key components of plant cells. 2. Which
-
ELA
What type of point of view is used in the The Call of the Wild? (❌)first Person (❌)third-person limited (✔️)third-person omniscient According to The Call of the Wild, what can you conclude about bucks life in the Santa Clara valley? (❌)It was
-
Science
Kepler's Second Law Quick Check. Hello! if you want to check your answers here is a guide to compare your answers. Please keep in mind answers may vary from school. 1. Which does Kepler’s second law state about planetary motion? A. A line between the
-
Physical Science 10A U4L5
When iron rusts and forms iron oxide, the iron oxide has more mass than the iron. Which statement correctly explains this observation? The iron atoms in iron oxide have more mass than pure iron. There are more iron atoms in iron oxide than in pure iron.
-
Probability
Amy immigrated to a new city, and would like to make friends with her new neighbours. On any particular day i, she feels shy with probability 1-p(0
-
Science
Nebulae Quick Check Hi!! keep in mind answers vary from school. 1. What causes a supernova? A. force of gravity 2. How are nebulae and stars related? Select the three correct answers. A. Stars form from nebulae. A. Stars explode to form nebulae. A. Nebulae
-
Science
1. As the pressure of an enclosed gas decreases to half its original value, what happens to the volume of the gas if temperature is held constant?(1 point) The volume decreases to half of its original value. The volume decreases to one-fourth of its
-
Chemistry 104
Write a balanced chemical equation based on the following description: liquid C₇H₈O is burned with oxygen gas to produce gaseous carbon dioxide and water vapor
-
chemistry
The element radium has a mass number of 226 and an atomic number of 88. How many neutrons does an atom of radium have?(1 point) 88 226 138 314
-
personal fitness
Fill in the blank with the letter of the description that best matches the term. Descriptions A. The elevated vertical board from which the hoop projects B. The most basic shot in basketball; uses the backboard C. A pass used to cover very long distances
-
math
If I make 9 brownies with 2 cups of cocoa and ! cup of sugar, how many cups of sugar do I need for 81 brownies?
-
science
Kepler's first and Thrid law quick check 1Which is the best description of Earth’s orbit? (1 point) A.almost circular B.parabolic C.circular D.Highly elliptical 2. Which statement describes Kepler’s third law of orbital motion? (1 point) A.The square
-
biology
1.A DNA segment has base order AGC TTA TCG. Which copy exhibits a frameshift mutation through deletion? D. AGA TTT CG 2.A DNA segment has base order CCC ATA GCT. Which copy exhibits a deletion in the first codon triplet and then a substitution mutation?
-
career exploration
1. Which of the following would be considered a career in science? (1 point) architect drafter geneticist***** statistician 2. To pursue a career in math, science, or engineering, which of the following subjects should you study? Select all that apply. (3
-
Biology
Models Versus Actual Body Systems Quick Check 1. Difficulty determining the texture of organs 2. a computer 2D image 3. Model focus on specific details 4. Computer generated model 5. Dissected pig i gotchu
-
Chemistry
What is the Brønsted-Lowry base in this reaction: NH2−+CH3OH→NH3+CH3O− A. NH3 B.CH3OH C.CH3O- D.NH2-
-
Language Arts
The Scarlet Ibis quick check 1.If an american salutes the flag to show his love of the country, he is treating the flag as a? a.symbol b.metaphor c.inference Answer: A Symbol 2. Which of the following vocabulary words ends in a suffix that indicates it is
-
Chemistry
When 15.0 mL of 3.00 M NaOH was mixed in a calorimeter with 13.0 mL of 3.00 M HCl, both initially at room temperature (22.0 °C), the temperature increased to 29.1 °C. The resultant salt solution had a mass of 28.00 g and a specific heat capacity of 3.74
-
Physics
On a hike you walk 5,000 m East, 3,000 m North, and 1,000 m West at a constant speed of 1 m/s. Calculate your velocity. A) 1.0 m/s B) 0.44 m/s East + 0.33 m/s North C) 0.55 m/s D) 1.0 m/s East + 1.0 m/s North
-
Chemistry
Energy Release Quick Check?
-
calc 1
8. a) Find the differential dy of y = cos x b) Evaluate dy for the given values of x and dx. (Round your answer to three decimal places.) x = 𝜋/3 and dx = −0.01. for a), i got dy = - sin(x) . dx, which is correct, but I'm having issue with b). I keep
-
Chemistry
solid C₄H₁₀O is burned with oxygen gas to produce gaseous carbon dioxide and water vapor
-
Language Arts
Which graphic best supports an explanatory text about how to prepare a recipe? (1 point) a. a chart that shows types of vegetables b. a photograph that shows a cooked dish c. a video that shows the steps in cooking a dish*** d. a diagram that shows types
-
Biology
Please help me with this! :> Remember the law of conservation of mass. The human body uses cellular respiration to make energy. Using the chemical equation for cellular respiration, explain how the amounts of oxygen and carbon dioxide inhaled by the lungs
-
calculus
For each of the given functions f(x) , find the derivative (f^-1)'(c) at the given point c , first finding a = f^-1(c) f(x) = 3x+7x^15 ; c = -10 a = -1 (f^-1)'(c) = ???? f(x) = x^2 - 15x + 77 on the interval [7.5, infinity); c=23 a = ???? (f^-1)'(c) = ????
-
Science
A student builds a model of the sun with a golf ball at its center. Which part of the sun does the golf ball represent? A. radiative zone B. inner core C. atmosphere D. convection zone
-
Physics
A football player is running at a constant speed in a straight line up the field at an angle of 15o to the sideline. The coach notices that it takes the player 4.0 s to get from the 25 m line to the goal line. How fast is the player running?
-
English grammar
Which of the following sentences demonstrate the correct comma placement?? The spicy, hot taco salad hit the spot. 1. The spicy, hot, taco salad hit the spot. 2. The spicy hot taco salad hit the spot. 3. The spicy, hot, taco, salad hit the spot.
-
Science
Just wanted to give out answers For the kinetic and thermal energy quick check 1.What is kinetic energy? the energy of motion 2. A fisherman in a boat is drinking a cup of hot coffee. The large lake below his boat is full of cold water. Which statement is
-
Mathematics
Two buildings are 30m apart. The angle of depression from the top of the taller building to the top of the shorter building is 12 degrees. The height of of the shorter building is 45 m. What is the height of the taller building?
-
Mathematics
1a.A line L1 passes through the points (3,3) and (5,7).Find the equation of L1 in the form Y=Mx+c where m and c are constants. b.Another line L2 is perpendicular to L1 and passes through (-2,3).Find : 1.The equation of L2 2.The X-intercept of L2
-
chemistry
What is the rate constant of 490K if the reaction 2NOCl (g) → 2NO (g) + Cl2 (g) has an Ea of 1.00 x 102 kJ/mol and a rate constant of 0.286 L/mol·s at 500K. What is the rate constant at 490 K?
-
c programming
Employees at Gitonga’s factory are paid an hourly rate of KES. 1000 for first 40 hours. The overtime rate for hours in excess of 40 is 1.5 times the regular rate. Write a C program to read an employee’s name, employment number, KRA pin and number of
-
physics
A boat is headed with a velocity of 18 meters/second toward the west with respect to the water in a river. If the river is flowing with a velocity of 2.5 meters/second in the same direction as the boat. What would be the magnitude of the boat’s velocity?