14h

domain and range

domain and range of y=-2x2-5x+7

14h

a dozen apples cost $2.9, at this rate how much does 4 apples cost

a dozen apples cost $2.9, at this rate how much does 4 apples cost

15h

J.R. is this correct?

Calculate the value of the standard molar entropy S°, for B2 (g) at 25°CSubstance: AB (g) Standard Molar Entropy, S° (J/Kmol): 217.9substance: AB2 (g) Standard Molar Entropy, S° (J/Kmol): 238.1is... more

computer science

Write a function to output patient information that are stored in a file. One of the parameters of the function must be no. of patients to output and another one the name of the file where the... more

computer science

Write a function to input patient information and store it in a file. One of the parameters of the function must be no. of patients to input and another one the name of the file to store the... more

16h

what angle does the ladder form with the ground?

. An 18-foot ladder is leaning against the wall. If the ladder reaches a height of 9 feet on the wall, what angle does the ladder form with the ground?

17h

HSO4- + H2O. What arises?

Denote acids and their conjugate bases.

Please help me with this maths question

Near the surface of the Earth, we estimate the acceleration due to gravity to be consistent to the value g=-10(in m/s^2).A) velocity (v(t)) describes the speed and direction of an object at time t.... more

what is the lengths of a right triangle if the hypotenuse is 20 and the area of the triangle 90?

I have no clue how to figure this answer out.Thanks

practice #3 questions

1.      What is the greatest amount of copper IV nitrate in moles that can be made with 24.3 mol copper II chloride and 20.9 mol sodium nitrate? Which reactant is limiting? How many... more

Practice #2 questions

1.      What is the greatest amount of magnesium oxide in moles that can be made with 6.3 mol Mg and 6.9 mol O2? Which reactant is limiting? How many moles of the excess reactant will be left... more

18h

Edit paragraph complex words

Hello,Are you able to edit this paragraph by changing some words into a lot more complex words, and making it more understandable (if necessary)Paragraph:In this pragmatic, agitating, jaw-dropping,... more

19h

Angular Frequency and Waves

Please explain what happens to the frequency of vibration for a spring system in a truck when it is loaded with 5000kg. What happens to the period of oscillation?Please explain in your own words... more

19h

Angular Frequency and Waves

If the mass is tripled in a mass spring system undergoing simple harmonic motion then what is the magnitude of the acceleration of the system at any position?  Please explain in your own words and... more

19h

PLEASE HELP ME ANSWER

(a) Find the amplitude, frequency, and period of motion for an object vibrating at the end of a horizontal spring if the equation for its position as a function of time is x=(.52m)cos((𝜫/4)... more

19h

help me answer these 3 questions

A 0.356 kg object connected to a light spring with a spring constant of 30.0N/m oscillates on a frictionless horizontal surface.(a) Calculate the total energy of the system and the maximum speed of... more

19h

please answer 3 questions

(a) Using a small pendulum of length .234m, a student on top of a tree counts 80 oscillations in 70 seconds. What is the value of ‘g’ in this location?  (b) What is the length of the... more

Test review help pre- cal

1.lim f(x), f(x) = { 2x-7, x ≤ 2 x--> 2+ -x/2 +11/2, x >2 2.lim √2x2+4/2x+1x--> ∞3.lim -4x-20/I-x-5Ix-->5+4.lim f(x), f(x) = {-x/2, x ≤ 3 x/2-4, x > 3

20h

is my answer correct?

Find the intervals of increase and decrease for the function f(x) = x4 − 4x3 − 8x2− 1f ' (x) = 4x3-12x2-16xf'(-2) = -48f'(-1) = 0f'(0) = 0f'(1) = -24f'(2) = -48f'(3) = -48f'(4) = -48f'(5) =... more

I need help please with these questions I don't understand

For the three-part question that follows, provide your answer to each question in the given workspace. Identify each part with a coordinating response. Be sure to clearly label each part of your... more

A solution needs to contain between 46% glucose and 50% glucose. - MATH INEQUALITIES

A solution needs to contain between 46% glucose and 50% glucose. Find the least and greatest amount of a 60% glucose solution that should be mixed with a 40% glucose solution in order to end up... more

computer science

Design a structure that keeps basic patient information. Think about what type of information may be needed about them so that the work of doctors will be easy. Hospital can accommodate maximum 100... more

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