thuylinhmeo2003

What is polynomial?

What is math?

What is trigonometry?

What is physics?

A recipe calls for 28.6 g of baking soda, how many pounds of baking soda do you need?

The ratio of vapour pressure to the saturation pressure of water at a given temperature can be used to calculate

Can you please help me solve this polynomial below

12m^2n2^

A group of 150 middle school students were asked whether they prefer playing video games or watching tV in their spare time. The genders of the students and their responses are reported in the following table.

A bat attempts sonic location by emitting sound of frequency 50−200kHz. What is the smallest wavelength (in m) of these waves, knowing that the speed of sound is 330m.s−1?

Solve it with complete solution. I already have an answer I just want a comparison. Thank you 

Note: Do not use any mathematics application. I will know it if you use any apps.

Topic: Logarithmic Equation 

Question: 

Solve for x if log(x-1) + log(x+1) = log21

Find all zeroes of the polynomial.  

 Solving Linear Systems by Substitution 
Solve the following systems of linear equations and clearly state what the
point of intersection is
Show ALL of your work

a) 3 x+ y=7
−x+2 y=7

b) y=7 x+3
x−y=3

c) 2 x+3 y=8
x−2 y=−3

Solve for k: l k-5 l = 4

What’s 4x5?

Is (a + b) – c = a + (b - c) true for all numbers? How do you know?

Please help

What does a sudden increase in pressure within the carotid sinus lead to?

A. increased sympathetic nerve activity and decreased parasympathetic nerve activity 

B. increased sympathetic nerve activity and increased parasympathetic nerve activity

C. decreased sympathetic nerve activity and increased parasympathetic nerve activity

D. decreased sympathetic nerve activity and decreased parasympathetic nerve activity

If we have two spheres, one of iron with a mass of 1 kg and one of wood with the same mass, which is the ratio of their weights?

Allele B mutates to allele b at a rate of 1/9,000. If the starting allele frequencies are 0.75 for B and 0.25 for b, what will the allele frequencies be in the next generation?

A force of 333.5 N is used to push a car 28.7 m horizontally in 3.43 s. Calculate the power developed.

You have a mass of 60.0 kg and are you are standing in an elevatoron the ground floor of a tall building. The elevator suddenlyaccelerates downward at 1.50 m/s2. How much force does the floor ofthe elevator exert on your feet? (use g = 9.80 m/s2)

Please show all work!

An electric motor develops 3.4 kW of power as it lifts a loaded elevator 18 m in 35 s.

How much force does the motor exert?

A bike rider approaches a hill at a speed of 6.2 m/s. The combined mass of the bike and the rider is 95 kg. The rider coasts up the hill. Assuming that there is no friction, at what height will the bike come to rest?

[A] The Candle will burn for a very long time compared to normal gravity
[B] The flame of the candle will become round
[C] There is no impact of gravity on the burning of candle
[D] The Candle will not burn in zero gravity

Which polynomial function has a leading coefficient of 1 and roots 2i and 3i with multiplicity 1?

How many of the first ten numbers of the sequence 121, 11211, 1112111,... are prime numbers? 

Sketch a polynomial function with the following characteristics:

a. 5 real zeroes

b. a zero of multiplicity 2 at x=-4

c. a zero of multiplicity 1 at x=2

d. a negative leading coefficient

[A] Optics
[B] Thermodynamics
[C] Both a and b
[D] None

[A] Optical interference
[B] Wave Nature of electrons
[C] Motion of charged particle in electromagnetic fields
[D] Faraday’s law of Electromagnetic induction

[A] Faraday’s law of Electromagnetic Induction
[B] Super Conductivity
[C] Laws of Thermodynamics
[D] Newton’s Law of Motion

Which of the following statements about the cosmic horizon aretrue?
A. It is the largest distance at which any object can exist.
B. It is the distance over which the Universe has expanded.
C. It is the size of the visible Universe.
D. None of the choices are correct

[A] Slug
[B] a.m.u
[C] Hyperkg
[D] C.S.L

Which best describes a system made up of ice, water and steamexisting together?

a. absolute zero
b. triple point
c. ice point
d. steam point

[A] 273.16 K
[B] 273.16° C
[C] 0° C
[D] -273.16 K

[A] Edwin Hubble
[B] Niels Bohr
[C] S Chandra Shekhar
[D] C.V Raman

[A] Magnetic confinement of Plasma
[B] Nuclear Fusion
[C] Controlled Nuclear Fission
[D] None of the above

[A] Infinite
[B] Very short Subnuclear size
[C] Very short Nuclear size
[D] None

a particle is confined to the region x≥0 by a potential whichincreases linearly as u(x)=u₀x. the mean position of theparticle at the temperature Tis:

1. k_BT/u₀

2.( k_BT/u₀)^1/2

3. (k_BT)²/u₀

4.u₀k_BT

please explain the correct option

3. The speed of the sound increases when there is an increase in the
1. temperature
2. moisture
Select the correct option from the codes given below:

[A] Only 1
[B] Only 2
[C] Both 1 & 2
[D] Neither 1 nor 2