Answer:
It won't let me comment but did you ever figure this out? I am on the same assignment and struggling.
Explanation:
Use the FOIL method to find the terms of the following multiplication problem.
(4+3i) (6-3i)
Answer:
i=2, -12/9
Explanation:
Step one: Using FOIL: (4+3i) (6-3i)--> 4*6+4*-3i+ 3i*6+ 3i*-3i
Step two: Simplify the new equation--> 24-12i+18i-9i²
Step three: Putting that into the quadratic equation--> -9i²+6i+24
Step four: Use the quadratic formula or the X-method (I'm going to use the X-method)
Step five a: Setting it up to use the X-method--> ax²+bx+c=0
Step five b: a=-9 b=6 c=14
Step six:
Step seven:
Step eight: i= -2, -12/9
Hope that helps! Let me know if you need anymore help!
A 40 N box is pushed 5 m up a ramp. The angle of the ramp is 37° above the horizontal. The applied force is parallel to the ramp and opposed by a frictional force of 10.0 N. Find the net increase in potential energy by the crate.
The net increase in potential energy by the crate is negative 49.4 Joules. That is, ΔP.E = - 49.4 J
Given that a 40N box is pushed 5 m up a ramp. The angle of the ramp is 37° above the horizontal.
We can find the height h of the ramp with the equation below;
h = 5sin 37
h = 3.009 m
Mass of the box = 40/9.8 = 4.082 kg
The maximum energy attained = mgh
Maximum Energy = 4.082 x 9.8 x 3.009
E = 120.36 J
The maximum K.E = Maximum P.E
1/2m[tex]U^{2}[/tex] = 120.36
m[tex]U^{2}[/tex] = 240.72
[tex]U^{2}[/tex] = 240.72 / 4.082
[tex]U^{2}[/tex] = 58.97
U = [tex]\sqrt{58.97}[/tex]
U = 7.7 m/s
We can find the acceleration by using third equation of motion
[tex]V^{2}[/tex] = [tex]U^{2}[/tex] - 2aS
Since the box is going to rest, V = 0, and acceleration will be negative
0 = 7.7^2 - 2 x a x 5
10a = 59.29
a = 59.29/10
a = 5.93 m/[tex]s^{2}[/tex]s^2
The applied force F = ma
F = 4.082 x 5.93
F = 24.2 N
Given also that the applied force is parallel to the ramp and opposed by a frictional force of 10.0 N. The net increase in potential energy by the crate will be
ΔP.E = Net work done
ΔP.E = Net force x distance
ΔP.E = (24.2 - 10 - 40sin37) x 5
ΔP.E = - 9.87 x 5
ΔP.E = - 49.4 J
Therefore, The net increase in potential energy by the crate is negative 49.4 Joules.
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I have finals next week and I need good study habit ideas… what can I do to understand everything I need to know?
Jemma purchased six scratch-off lottery tickets and won $25 on the fifth ticket. Which kind of reinforcement schedule does this exemplify? Continuous reinforcement Fixed-ratio reinforcement Variable-ratio reinforcement Fixed-interval reinforcement Variable-interval reinforcement
Answer:
Variable-ratio reinforcement
Explanation:
The kind of reinforcement schedule this exemplifies is variable-ratio reinforcement. The correct option is c.
What is variable-ratio reinforcement?A variable ratio schedule is a reinforcement schedule in which a behavior is reinforced after a random number of responses. This type of schedule produces high, consistent response rates. It is a sort of partial reinforcement in which only a subset of responses are reinforced and no definite pattern exists.
Organisms persevere in reacting in the belief that the next reaction will be the one required to earn reinforcement. A variable-ratio schedule is a partial reinforcement schedule in operant conditioning, in which a response is reinforced after an unknown number of responses.
Therefore, the correct option is c, Variable-ratio reinforcement.
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which factor contributes least to the rate at which a stream deposits sediment?
Solution
To determine the angle of the velocity, we use the following equation.
Tan θ = Vertical velocity ÷ Horizontal velocity
As the particle moves from its initial position to its final position, its vertical velocity decreases at the rate of 9.8 m/s each second. During this time its horizontal velocity is constant. To determine the time when the angle is 45˚, we need to determine the object’s vertical velocity at this angle. Let’s determine the vertical and horizontal components of its initial velocity.
Vertical = 50 × sin 60˚, Horizontal = 50 × cos 60˚ = 25 m/s
Since horizontal velocity is constant, let’s put 25 m/s and 45˚ into the tangent equation.
Tan 45 = Vertical velocity ÷ 25
Vertical velocity = 25 m/s
To determine the time for the vertical velocity to decrease from its initial value to 25 m/s, use the following equation.
vf = vi – a × t
a = 9.8
25 = 50 × sin 60˚ – 9.8 × t
t = (25 – 50 × sin 60˚) ÷ -9.8
This is approximately 1.83 seconds.
Could anybody look over my AP US Government Exam and correct me on anything I might have gotten wrong
what centrifugal force lead to the Rwandan civil war
Answer:
The Hutus and Tutsis. Also known as the Rwandian Genocide
Explanation:
Identify the legal concern that is common to both Trump v. Hawaii
(2017) and Baker v. Carr (1962)
Answer:
In Hawaii v. Trump, the Supreme Court considered whether President Trump's travel ban exceeds the President's delegated powers under the Immigration and Nationality Act and violates the Establishment Clause of the First Amendment
It should be noted that the cases established the right of federal courts to review redistricting issues outside the courts' jurisdiction.
In Hawaii v. Trump, it was considered whether President Trump's travel ban exceeds the President's delegated powers.
In Baker v. Carr (1962), the court ruled that federal courts can enforce the 14th amendment in a situation where the state legislative districts are populated.
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Catherine takes out a subsidized loan of $5,000 with an interest rate of 2%. How much will she owe on this loan at the time of graduation?
$5,000
$100
$5,400
$0
I am always here, but you can never see me.
What am I????
Answer:
future?
Explanation:
A particle moves along a curve with position function s(t) = t/2 - cos(t) for [tex]0\leq t\leq 2\pi . Find the max velocity of the particle and the time it reaches this velocity.
Answer:
t/2 = 5/5 squared
Explanation:
So basically you find out all the functions, add it up and then you will have the max velocity of the particle. To find out the time you find the mean.
The global positioning system (GPS) is a system of satellites that provides precise velocity and positional information for all locations on Earth. Describe how GPS data are used in the study of certain animals. (0.5 point) Think about how wild animals can be tracked over great distances.
Answer:GPS tracking is the newest technology being used to track wildlife. In GPS tracking, a radio receiver, not a transmitter, is placed on the animal. The radio receiver picks up signals from special satellites. The receiver has a computer that then calculates the location and movement of the anima
Explanation:
GPS data is extensively used in the study of certain animals to understand their movements, behaviors, and habitats.
Researchers attach GPS tracking devices to animals such as migratory birds, marine mammals, and large terrestrial mammals. These devices record the animal's location at regular intervals, allowing scientists to track their movements over time.
By analyzing GPS data, researchers can identify migration routes, feeding areas, and breeding grounds of the studied species.
This information is vital for conservation efforts, as it helps identify critical habitats and migration corridors, assess the impact of human activities, and inform effective management strategies to protect these animals and their ecosystems.
GPS technology revolutionized the understanding of animal behavior and contributed significantly to wildlife conservation efforts.
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Can some help me with Question it's and emergency.
How did the film “The Birth of a Nation” Affect the African American community?
the movie's overt racism outraged African Americans and civil rights advocates.
Pleassee Helppp!!!!
Health professionals communicate effectively by referring to the body as though it is in anatomical position.
True
False
What role do you think parents have in making sure that their kids eat healthy? Do you think you eat healthy in your home?
Answer:
As a parent, you have an important role in shaping your children's eating habits. By creating a positive eating environment and being a good role model, you can help your children develop healthy eating habits that can make a lasting impact on their health.
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For Mendel’s studies, why was it important that his subjects, pea plants, could reproduce quickly and produce many offspring?
TRUE atau FALSE:
Singapura mempelopori balapan malam F1 pertama
Answer:
true
Explanation:
During an el Niño event warm surface water moves from the western equatorial Pacific Ocean to the eastern equatorial region. Which of the following best describes how the warm water w
affect upwelling off the coast of equatorial South America?
The warm surface water will not change upwelling because this region is at the equator and always has warm water
The warm surface water will increase upwelling because of the difference in salinity between the warm surface water and the cold deep water,
The warm surface water will decrease upwelling because the cooler temperatures on land in the region will prevent upwelling.
The warm surface water will decrease upwelling because of the density difference between the warm surface water and the cold deep water.
The statement 'warm surface water will decrease upwelling because cooler temperatures on land will prevent upwelling' describes how the warm water affects upwelling. El Niño is a climatic phenomenon.
El Niño is a climate phenomenon characterized by the warming of the surface water in the tropical Pacific Ocean.
The upwelling refers to the rising of deeper and colder water to shallower depths (i.e., the movement of deeper water to shallow levels), which occurs during the El Niño phenomenon.
The El Niño occurs every 2 to 7 calendar years as a consequence of the unusual warming of the sea water surface temperatures in the eastern tropical Pacific Ocean.
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What are the arithmetic operators?give an example using at least one arithmetic operator and at least two values
Answer:
I don't know
Explanation:
Explain ONE way in which European practices affected the environment in the Americas in the period c. 1450-c. 1750.
A way through which European practices affected the environment in the Americas during this period was that colonization ruptured the ecosystem.
It should be noted that during this period, colonization ruptured the ecosystem. It brought in new organisms while others were eliminated.
Also, the Europeans brought many diseases with them. This decimated the population of the Native Americans. Therefore, new plants were planted by the Native Americans as medicines.
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Substance abuse does all of the
following, with the exception of
which?
A. alters perception
B. diminishes self-esteem
C. causes physical harm
D. extreme withdraw symptoms
Answer:
D
Explanation:
How many years is it in college for both botany, cooking, and mechanic's together?
Answer:
It can take anywhere from 6 years to 10 years. Depends on the university.
In most unis:
Botany - 4 years
Culinary school - 4 years
Mechanical trade - 2 years
Hope that helps
how would most Spanish speaker ask the school principal for his or her office telephone number
Answer:
Disculpe director, ¿podria darme el número de teléfono de su oficina?
Explanation:
Tu créeme
The economy has been sluggish in recent months with slow economic growth. Explain the policies that the Federal Reserve could use to improve the economy.(1 point)
The Federal Reserve stops purchasing treasuries and securities, and then issues new reverse repurchase agreements. The short-term profits and decrease in the money supply cause a decrease in interest rates and increased lending.
The Federal Reserve sells treasuries back to banks and issues new reverse repurchase agreements. The decrease in the money supply increases interest rates, which increases lending.
The Federal Reserve purchases treasuries and securities and also issues new repurchase agreements. The increase in the money supply and decrease in interest rates result in more lending and risk.
The Federal Reserve purchases treasuries and securities, and also issues new repurchase agreements. The increase in the money supply increases interest rates and inflation, which spurs economic growth.
The policy that the Federal Reserve could use to improve the economy are;
C: The Federal Reserve purchases treasuries and securities and also issues new repurchase agreements. The increase in the money supply and decrease in interest rates result in more lending and risk.
The Federal Reserve which is the US Central Bank has 2 major roles which are:
To find a way to work to achieve low level of unemploymentTo maintain stable prices all through the economy.Now, when there is recession which is slow economic growth, unemployment level increases, and prices may drop in a process called deflation.
The Federal Reserve could take the following steps to arrest the slide in economic growth;
Open market operations; In this system, the federal reserves can lower interest rates by buying debt securities on the open market which is traded in return for newly created bank credit. This means the federal reserve purchases mostly Treasury securities in its normal open market operations. Lower capital requirementsDiscount LendingThus, the correct answer is option C.
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Answer: C: The Federal Reserve purchases treasuries and securities and also issues new repurchase agreements. The increase in the money supply and decrease in interest rates result in more lending and risk.
Hope this helps :)
The State of Connecticut has a fiscal year end of June 30th. The State has authorized the building of a new Fire Station in New Haven County to begin on July 1, 2020. The State authorized 30 million dollars to build the Fire Station.
The following transactions were recorded in the State of Connecticut’s Capital Project Fund:
1. $3,000,000 was received from the Federal government and was considered “Revenue.”
2. The State of Connecticut’s General Fund transferred $9,000,000 to the Capital Project Fund. [Operating Transfer In]
3. Bonds were issued (at face) by the State of Connecticut for $18,000,000 and the monies were received and recorded in the Capital Project Fund. [Other Financing Sources]
4. The contract for the Fire Station was awarded to the Oceanside Construction Company for $30,000,000. [Remember, contracts are encumbered.]
5. The construction of the Fire Station was certified complete on March 1, 2021, was expenditured and the Oceanside Construction Company was paid.
The books were closed and the financial statements for the Capital Fund of the State of Connecticut were prepared for the fiscal year ended June 30, 2021.
[Assume that this Capital Project Fund had zeros in all accounts on July 1, 2020, the beginning of the fiscal year. You do not have to prepare closing entries.]
Required:
A. Prepare the journal entries for the above 5 transactions (only for the Capital Project Fund.)
B. Prepare a Statement of Revenues and Expenditures for the Capital Project Fund for the fiscal year ended June 30, 2021, in good form.
C. Prepare a Statement of Changes in Fund Balance for the Capital Project Fund as of June 30, 2021, in good form.
Answer:
A
Explanation:
A 0.2 kg baseball with a speed of 48 m/s is struck by a bat. The ball rebounds and travels in the opposite direction at 52 m/s. The ball was in contact with the bat for only 2 ms. Find the magnitude of the force of the bat on the ball.
The magnitude of the force of the bat on the ball is 10000 N
From the question given above, the following data were obtained:
Mass (m) = 0.2 KgInitial velocity (u) = 48 m/sFinal velocity (v) = 52 m/sTime (t) = 2 ms = 2×10¯³ sForce (F) =?The magnitude of the force can be obtained as follow:
F = m(v + u) / t
F = 0.2 (52 + 48) / 2×10¯³
F = (0.2 × 100) / 2×10¯³
F = 20 / 2×10¯³
F = 10000 N
Thus, the magnitude of the force is 10000 N
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In ΔABC, ∠B is a right angle, AB = 30, and sec A = 5/3. Find the value of csc C in fraction and in decimal form.
I will mark brainliest if you are correct!
sec(A) = 5/3 ⇒ cos(A) = 3/5
Angles A and C are complimentary (they sum to 90°), so
sin(C) = cos(A) = 3/5
since sin(90° - x) = cos(x) for all x, and in turn
csc(C) = 1/sin(C) = 5/3
I have cities, but no houses.
I have mountains, but no trees.
I have water, but no fish.
What am I?????
Answer:
a map
Explanation:
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EZ COLLEGE QUESTION:Which of the following people would be most appropriate to ask for a letter of recommendation to accompany your college application?:
A.the coach of your seventh grade soccer team
B.the minister of your local church who has known you for 10 years
C.the neighborhood family for whom you babysit on a regular basis
D.the friend you made at a two-week YMCA camp last summer
The minister of your local church who has known you for 10 years would be most appropriate to ask for a letter of recommendation. A letter of recommendation can help to obtain a job or college application.
A letter of recommendation is a document used to validate the work, specific skills, and/or academic performance of an individual.
These letters (letters of recommendation) are generally requested by a superior for obtaining a job or college opportunity.
The letters of recommendation can be helpful for adding extra merit to a job/college application.
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What is the percent rate of increase for the exponential function f (x) = 2.5(1.3)^x
Answer:
f(x) = d/ dx (2.5x1.3)
f(x) =2.5×d/dx(1.3*)
f(x) =5xIn 13/10 x 13*/2×10*
So the answer is
f(x)=5•IN13/10•13*/2•10*
That's the correct answer I see in my book
f(x)=5•IN13/10•13*/2•10* is the percent rate of increase for the exponential function.
What is an exponential function?The formula for an exponential function is f (x) = ax, where x is a variable and an is a constant that serves as the function's base and must be bigger than 0. The transcendental number e, or roughly 2.71828, is the most often used exponential function basis.
Y=abx y = a b x is the fundamental exponential function equation, where a denotes the y-intercept and b the growth factor.
When b > 0 and b 1, an exponential function has the form f(x) = bx. The base is b, and the exponent is x, just like in any exponential expression. The development of bacteria is an illustration of an exponential function. Some germs multiply by two per hour.
f(x) = d/ dx (2.5x1.3)
f(x) =2.5×d/dx(1.3*)
f(x) =5xIn 13/10 x 13*/2×10*
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