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Posts by oscar

Total # Posts: 812

physics
A 30 ohm resistor is connected in parallel with a variable resistance R. The parallel combination is then connected in series with a 6 ohm resistor and connected across a 120 V source. Find the minimum value of R if the power taken by R is equal to the power taken by the 6 ohm...

BUSINESS MATHS
2(20*5)+2(15*5)=350 350*8.50=2975

geometry
In isosceles triangle ABC, ?A = 80°. The bisectors of the base angles, ?B and ?C, intersect at point P. ?BPC =

riddle
Faces

history
is the Answer C ?

history
U.S. Groups of the Late 1700s and Early 1800s Women Children Indentured Servants Native Americans African American Working Class Which is one characteristic common to all groups listed above? They rarely attained landownership. They could all be legally owned as slaves. They ...

U.S History
so D would be the correct answer?

Geometry Help
Triangles DEF and D'E'F' are shown on the coordinate plane below: Triangle DEF and triangle D prime E prime F prime with ordered pairs at D negative 1, 6, at E 1, 3, at F 6, 3, at D prime 6, 1, at E prime 3, negative 1, at F prime 3, negative 6. What rotation was ...

geometry
The ramp rises 20 from the ground and a vertical distance of 30 inches . how much horizontal distance does the ramp cover

HISTORY HELP plsssssssss
Who ruled large estates in feudal Japan? Samurai Daimyö Shoen Bushi is it d pls help

HISTORY HELP plsssssssss
Which of the following describes trade in the Late Middle Ages? Far-reaching Limited Local Secret is it a pls help

HISTORY HELP plsssssssss
The Black Death contributed to the growth of the arts by decimating the population, leaving the survivors wealthier giving artists a universal subject to depict strengthening the control of the Church forcing people to spend more time indoors, where they could work on art is ...

HISTORY HELP plsssssssss
Thank you so much!!

HISTORY HELP plsssssssss
Which of the following is a characteristic of illuminated manuscripts? Text was presented in different colors, based on its intended purpose. Text was written with special ink that made the text appear brighter to readers. The manuscript covers were kept plain to encourage ...

english help please!!
Identify three search combinations you could use to find information about technology on the internet? Please help me....

english help please!!
thx ::))

english help please!!
Read the following excerpt. Using the context of the paragraph, select the word that best completes the sentence. We must __________ this place, this sacred and special place, where so many have come to fight and die for our freedom. It is not a sacrifice we should take ...

English
1-2.irate-curt do u need help with 3-4

English pls help me
anticipate?

English pls help me
Select the word that best completes the sentence: The new cell phones were so popular the company was unable to __________ their enormous sales on the first day. anticipate improved lessened provide is it provide. pls help

science help pls pls
*formula

science help pls pls
could you tell me the formual pls

science help pls pls
The table below shows the average distances of Jupiter and Earth from the sun. Name of Planet Average distance from the sun (in AU) Jupiter 5.2 Earth 1.0 What is the difference between the orbital periods of Jupiter and Earth? 4.20 years 6.20 years 8.86 years 10.86 years 12.40...

HISTory
why does the mona lisa represent the renaissance

math help plsss plsss
Decide which part of the quadratic formula tells you whether the quadratic equation can be solved by factoring. −b b^2 − 4ac 2a Use the part of the quadratic formula that you chose above and find its value, given the following quadratic equation: 4x^2 + 6x + 2 = 0

Math
Andreas garden is shaped like a parrelelogram with a base length of 6.5 meters and a height of 4.8 meters. She wants to increase the area by doubling the base length and increasing the height by 1.5 meters. By how much will the changes increase the area of the garden. Explain ...

Math
A triangular sail has a base of 3 feet and a height of 5 1/2 feet. What is the area of the sail?

english help please!!
Which of the following sentences uses the word "diction" correctly? A broad vocabulary will allow you to use good diction. Diction comes from rhyming words in poetic literature. He never used any diction in his many lengthy novels. Let's go diction before we jump...

science help pls pls pls
Generally speaking, how does the complexity of Colorado's geology compare with the complexity of Florida's geology? Colorado's geology is more complex than Florida's geology. Florida's geology is more complex than Colorado's geology. The geology in ...

algebra pls pls help
Determine which polynomial is a perfect square trinomial. 49x2 − 28x + 16 9a2 − 30a + 25 25b2 − 45b − 81 16x2 − 24x − 9 is it b pls help me

algebra pls pls help
Factor completely: 2x^3 + 14x^2 + 6x + 42? A. 2[(x^2 + 3)(x + 7)] B. (2x^2 + 6)(x + 7) C. (x^2 + 3)(2x + 14) D. 2(x^3 + 7x^2 + 3x + 21) is it d pls help me

algebra pls pls help
The equation f(x) = 4x^2 − 16x + 9 represents a parabola. What is the vertex of the parabola? (2, −7) (−2, 57) (4, 9) (−4, −137) is it a pls helpme

english help please!!
Thanks :)

english help please!!
How do most people use comparison/contrast? To prove that others are wrong To make informed choices To destroy many political debates To share unbiased information is it a pls help

english help please!!
is it a

english help please!!
Which of the following is an example of an informational text that explains? A pamphlet that disputes a point A written account of events in war An instruction manual for a computer An argument about the use of exams Is it b pls help me

science help pls pls
One group of scientists has proposed a new theory on Adaptation. A majority of scientists worldwide agree with the theory. The theory is most likely biased. incomplete. accurate. unchangeable. is it accurate pls help me

english help please!!
A?

english help please!!
questions you can easily answer based on facts

english help please!!
oh is it b

english help please!!
Which of the following is an example of a literal question? When was Marcus called to the office? Why was Marcus always getting in trouble at school? How did Marcus treat his teachers? Which of your friends is most like Marcus? is it d pls help me

math
Jennifer is playing a game that involved rolling a fair number cube. She rolled the number 2 twelve times. What is the best prediction of the number of times she will roll a 2 if she rolls the dice 100 times?

History help me plsssss
Thank you so much!!!

History help me plsssss
is it a?

History help me plsssss
In 1939, British politician Winston Churchill uttered these words: "Between shame and war, we have chosen shame, and we will get war." To what was Churchill referring? Chamberlain's appeasement of Hitler at Munich Hitler's annexation of Austria (the Anschluss...

science help pls pls
Jupiter is 5.2 AU from the sun. What is its distance from the sun in kilometers? 28,846 km 78,000 km 28,846,153 km 780,000,000 km is it d pls help

math help pls pls pls
Water coming out from a fountain is modeled by the function f(x) = −x2 + 8x + 2 where f(x) represents the height, in feet, of the water from the fountain at different times x, in seconds. What does the average rate of change of f(x) from x = 1 to x = 4 represent? The ...

science help PLS
is it a pls help me

science help PLS
When Jane visits a beach, she notices a sea stack has formed offshore. Which of the following best describes what caused the sea stack to form? Erosion hollowed out the rock in a seaside cliff. Deposition moved sand from the beach into an offshore pile. A large number of ...

math help pls pls pls
The table below shows the age of some participants in a quiz competition and the number of questions they could answer correctly: Age (years) (x) 15 21 17 22 16 19 18 Number of questions they could answer (y) 17 17 17 17 17 17 17 What is the correlation coefficient for the ...

Math pls help me
A dance school has 54 students who learn salsa and 23 of those students also learn ballet. There are 15 students who do not learn salsa but learn ballet and 10 students do not learn either salsa or ballet. Which table best shows the relative frequency of rows for the data?

HISTORY HELP plsssssssss
Is it b

HISTORY HELP plsssssssss
Who did the Spanish use for labor in their early New World settlements? Enslaved Spanish Enslaved Natives Portuguese Africans is it d pls help

HISTORY HELP plsssssssss
Many modern universities in Europe began as which of the following? Churches Hospitals Monastic schools Secular libraries is it c pls help

HISTORY HELP plsssssssss
Use this map to answer the following question: This image shows a map of South America. The western coast is shaded blue. There are four numbers marking different areas on the coast. The first number marks an area at the very top of the shaded area. The number 4 marks the area...

HISTORY HELP plsssssssss
How did the success of West African kingdoms contribute to the development of kingdoms in western and southern Africa? As the populations of western kingdoms grew, overpopulation caused citizens to migrate east and south to build new empires. As people from other continents ...

HISTORY HELP plsssssssss
Thanks so much :)

HISTORY HELP plsssssssss
Which of the following is a set of basic Islamic beliefs? The Five Pillars of faith The Seven Sacraments The Twelve Disciples The Ten Verses is it a pls help

HISTORY HELP plsssssssss
Use this image to answer the following question: The picture shows an Aztec calendar, which is circular. The whole surface is covered with intricate designs that are too small for the reader to identify. At the center of the circle is a the face of the sun god, with its tongue...

science help pls
Which of the following is a technique used in relative dating? Beta decay Index fossil correlation Isotope ratios Radiocarbon dating is it d pls help me

science help PLS
Thank you so much!

science help PLS
Examine the following diagram. Place the labeled layers in order from youngest to oldest. Diagram showing a section of rock strata. The bottommost layer is labeled 'A'; the layer directly on top of layer A is labeled 'B'; the layer directly on top of layer B is...

science help pls pls
A scientific law can be best described as an explanation of a specific relationship a series of observations with contradictory data a phenomenon which works under changing conditions a description of specific relationships under given conditions is it a pls help me

science help pls pls
Derek designed an experiment to demonstrate interactions between Earth systems. He cleared a patch of land in his backyard and poured a glass of water from a height of 12 inches above the ground. A depression was formed on the land at the spot where the water hit the ground. ...

i really need help with science pls help
A scientific theory is proposed after several valid investigations. This makes scientific theories elaborate descriptions of observations the most powerful explanation scientists have to offer unchangeable by other scientists over a period of time unacceptable to a majority of...

i really need help with science pls help
The Hawaiian Islands are examples of islands that formed over a hotspot. Based on this information, which of the following processes formed the Hawaiian Islands? Melted rock called magma rose through holes in Earth's crust and gradually solidified as it cooled. Tectonic ...

science help
Which of the following sets of characteristics describe what we know about the dwarf planets? Orbits the sun, has sufficient mass to assume a nearly round shape, and lacks the gravity to clear items near its orbit. Has sufficient mass to maintain a round shape, orbits the sun...

science help pls pls pls
A new object, Object Y, was discovered outside our solar system. Object Y is small and rocky, is not a satellite of any other object, and it does not have enough gravity to clear away smaller objects near its orbit. The characteristics of Object Y most closely resemble those ...

science help pls pls
Which of the following terms refers to the foamy bubbles of a breaking wave? Duration Fetch Speed Surf is it d pls help me

science pls help
Which of the following causes the formation of surf on a breaking wave? Beach erosion Low wind speeds Deposition of sand on a beach Friction with the ocean bottom at the coast is it d pls help me

HISTORY HELP plsssssssss
Use the following excerpt from John Locke's Second Treatise of Civil Government (1690) to answer the question below: "But though this be a state of liberty, yet it is not a state of licence: though man in that state have an uncontroulable liberty to dispose of his ...

HISTORY HELP plsssssssss
Use the following statement from Jean-Jacques Rousseau to answer the question below: "Everything is good as it comes from the hands of the Maker of the world, but degenerates once it gets into the hands of man." —Public Domain Rousseau would have supported the ...

i need help with science pls
PLEASE HELP ME! Uranium can supply energy for the world's electricity without emitting harmful greenhouse gases. Which of these statements best describes an outcome of uranium mining? a. The people living near the mines may suffer from diseases due to radiation b. The ...

i really need help with science pls help
One student made the incomplete diagram shown below to represent the relationship between magma, igneous rocks, and metamorphic rocks. Individual labels for Magma, Igneous rocks, and Metamorphic rocks set up in a triangular shaped diagram. Which of these is the correct next ...

i really need help with science pls help
Two groups of scientists got different results while studying about the origin of the universe. Which of these statements is most likely true about the results of the two groups of scientists? They were not repeated and verified. They provide new testable ideas to strengthen ...

science help pls pls
Which statement best explains why the Big Bang Theory is the leading scientific explanation of the development of the universe over time? Its experiments reject all old theories on the origin of the universe. Its experiments yield different results every time they are repeated...

science help pls pls
Infrared radiations are produced when a changing electric field creates a longitudinal wave parallel to it longitudinal wave perpendicular to it changing magnetic field parallel to it changing magnetic field perpendicular to it is it d pls help me

science help pls pls
A star is observed from two positions of Earth in its orbit, in summer and winter. Which of these is the best method to calculate the approximate distance of the star from Earth? measure the parallax and use it in calculations measure the red shift of emitted light and use it ...

i need help with science pls
]Most of the drinking water in a location comes from a river. A steel plant is to be built close to the river. It would provide jobs and facilities to many people in the location. The steel plant would use a huge amount of river water. This might cause drinking water scarcity ...

math
2.5 : 1.5

science help pls pls
so it would be c

science help pls pls
A pond is located beside an open mine. Mercury from the mine contaminates the river water. This is an example of single pollution multiple pollution point source pollution non-point source pollution would this one be c or b. im having trouble with this one.

science help PLS
A nuclear power plant produces huge amount of electricity. However, it dumps radioactive wastes into the sea. This has led to an increase in illness among people living along the coast. Which of these is the best method to solve this problem? Increase public awareness to close...

science help pls pls
thx :) :) :)

science help pls pls
Which of these surface features are formed when the acid in groundwater reacts with limestone? rivers and springs sinkholes and caves hot springs and geysers wetlands and volcanoes is it b pls help me

science check
The lake water in a location in Florida has been found to contain high levels of fecal coliform. What are people in the location most likely to do? breed fish in the lake stop swimming in the lake reduce their water consumption install water filtering equipments in their ...

science help pls pls
Which of these statements best explains why scientists use models? to allow other scientists evaluate their data to speed up or slow down natural processes to describe and explain non-observable objects and processes to predict the scientific theories which would be proposed ...

science help pls pls
Dams are used to produce hydroelectric power. Which of these best describes the impact of a dam on the environment? It causes air pollution. It reduces the level of groundwater. It causes changes in the river ecosystem. It reduces the level of oxygen in river water. is it c ...

science help pls pls
The information about groundwater recorded by a student is valid when it is not biased its results cannot be repeated it is not obtained from a primary source its findings do not have to be shared with others is it a pls help me

science help pls pls
Which of these is the most practical method to prevent global water shortage? Stop planting trees and shrubs in gardens. Conserve, recycle and reuse water in households. Stop using appliances like washing machines and dishwashers. Discourage setting up of power plants which ...

science pls pls pls help me
is it c

science pls pls pls help me
The lake water in a location in Florida had an unusual color and smell. Investigations revealed that the lake? water contained high levels of toxic fertilizers and pesticides which were carried into the lake from gardens and common areas in the location. What are people in the...

science help pls pls
Which of the following is a myth about water conservation? An important part of water conservation is preventing water pollution. Buying bottled water conserves more water than drinking from the tap. Air-drying clothes conserves more water than using an electric clothes dryer...

science help pls pls
Which of the following best explains how water conservation can reduce waterborne diseases in a community? More people will have clean water to drink and bathe in. More people will drink bottled water imported from faraway springs. More people will be encouraged to visit the ...

english help please!!
Which of the following is a strong post-reading strategy? Paraphrase each line of the entire story by hand. Write an essay without looking at your notes. Discuss difficult concepts with other people. *** Loan the book to a friend to read after you. is it c pls help me

simultaneous equation help
x^2-2xy=3...1 3x^2-y^2=26...2

science help PLS
Which of the following is a sign of poor quality water? Zero turbidity A pH of 7.0 High phosphate content High dissolved oxygen

science help pls pls
Which of the following is typically associated with a large amount of organic material in a water supply? Lower turbidity Higher phosphates Fecal coliform High dissolved oxygen is it c pls help

english help please!!
A comma splice is a(n) incorrect use of a comma to correct a run-on sentence correct use of a comma to correct a run-on sentence incorrect combining of two dependent clauses way to correctly combine two dependent clauses is it a pls help

english help please!!
Sentence fragments should be: routinely used when writing avoided when writing used to express a complete thought combined using a semicolon is it b pls help

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