Friday
December 9, 2016

Posts by iris

Total # Posts: 239

Pre-Calculus
?*
December 6, 2016

Pre-Calculus
Can someone please explain how eccentricity can be used to classify conics.
December 6, 2016

Calculus
Use a graphing utility to graph the polar equation shown below. r = cos 5? + n cos ?, 0 ? ? ? ? For the integers n = -5 to n = 5. As you graph these equations, you should see the graph change shape from a heart to a bell. I'm sorry. I'm having issues with graphing this.
December 6, 2016

English
How is close reading related to annotation? How are they similar?
December 5, 2016

Pre-Calculus
Convert to rectangular: 4=4sec theta A. y=2 B. y=4 C. x=2 D. x=4
December 2, 2016

Pre-Calculus
Convert to rectangular: theta=(2pi)/3 A. y=-sqrt3 B. y=-sqrt3x C. x=sqrt3 D. x=-sqrt3y
December 2, 2016

Pre-Calculus
Convert to rectangular: theta=2pi/3
November 30, 2016

Pre-Calculus
Which are examples of the use of parametric equations? A. Position of a person on a ferris wheel. B. Position of a ball after being thrown. C. A and B D. Neither A nor B
November 30, 2016

Pre-Calculus
Which is the best example of the use of parametric equations? A. Measuring weight on the moon. B. Finding the position of a person in a city. C. Determining the position of a satellite during a specific time of day. D. Finding the right parameters to use for a construction ...
November 30, 2016

Pre-Calculus
Can you please give and example of a hyperbola and ellipse with the same vertices and center that I can graph? Then explain the similarities and differences between the graphs.
November 29, 2016

Pre-Calculus
given: ((x-2)^2/9)+((y-4^2/16)=1 what is the major axis?
November 29, 2016

Texas History
My answer is D
November 18, 2016

Texas History
Why did Santa Anna attack the Alamo? A. It had a supply of gold. B. It was an important strategic location. C. It was his family’s ancient homeland. D. It would ensure a glorious victory.
November 18, 2016

Calculus
Which of the following would be the best first step when solving the following system using the substitution method? x - y = -4 ; x + 2y = 5 a. x = -4 - y b. x = -4 + y c. 2y = 5 - x d. 2y = 5 + x
November 9, 2016

Trig
find the angle between u=7i+2j and v=-4j
November 9, 2016

Calculus
Given: u <-1, 7> and v <4, -3> What is the measure of the angle between them?
November 5, 2016

Pre-Calculus
Given: u <-1, 7> and v <4, -3> Find: (u • v)(u + v)
November 5, 2016

Calculus
Find the dot product of: <-1, 7> and <2, ¾>.
November 2, 2016

Calculus
What is the unit vector of v: <-6, -8>?
November 2, 2016

Calculus
Given the vectors u = <−3, 7> and v = <5,1>, find 3u + 2v.
October 28, 2016

Trig
Given tan(A) = 2 and A is in Quadrant I, find cos(2A). A. 0 B. 1 C. 1/2 D. -3/5
October 7, 2016

Trig
Just confused. Given tan(A) = 2 and A is in Quadrant I, find sin(2A). A. 0 B. 1 C. 1/2 D. 4/5
October 7, 2016

Pre-Calculus
Given Tan(A) = 5 in Quadrant III and Sin(B) = ⅔ in Quadrant II, find Cos(A-B).
October 6, 2016

Pre-Calculus
Given Sin(A) = ⅗ and Cos(B) = 8/17 in Quadrant I, find Sin(A+B).
October 6, 2016

Pre-Calculus
A.Verify the identity. B.Determine if the identity is true for the given value of x. Explain. [cot(x) – 1] / [cot(x) + 1] = [1 – tan(x)] / [1 + tan(x)], x = π/4 I solved A and I believe it's true; however, I need help with B.
October 5, 2016

Pre-Calculus
A.Verify the identity. B.Determine if the identity is true for the given value of x. Explain. Sec(x) / tan(x) = tan(x) / [tan(x) – cos(x)],x = π I already solved A and I believe it's true; however, I need help with B.
October 5, 2016

Pre-Calculus
This question has me stuck. Use the Pythagorean identity sin^2 Θ + cos^2 Θ = 1 to derive the other Pythagorean identities, 1 + tan^2 Θ = sec^2 Θ and 1 + cot^2 Θ = csc^2 Θ. Discuss how to remember these identities and other fundamental identities.
September 29, 2016

History! Help!
Yea! A. It created large populations
September 7, 2016

History! Help!
The Caddo were an American Indian group in Texas that practiced agriculture and build permanent houses. What can be inferred about the group? A. It created a large population B.It formed a small and defenseless population C.It had no contact with other groups D.It was nomadic ...
September 7, 2016

History! Help!
The Atakapans occupied the region from the Sabine river to the A. San Jacinto river B. Red river C. Colorado river D. Trinity river Both the Karankawa and Atakapans relied heavily on which resources? A.rival groups B.fish and shellfish C.settlers D.trees and nuts Both the ...
September 2, 2016

History! Help!
Is that right?
September 1, 2016

History! Help!
Well.... it would be A?
September 1, 2016

History! Help!
Which of the following lists the start of the agricultural revolution according to absolute chronology? A. AD 500 B. after hunting and gathering C. post-Spanish exploration D. 5000 BC
September 1, 2016

Pre-Calculus
Which of the following statements best describes the domain of the functions sine and arcsin? A)Sine domain is all real numbers; Arcsin domain is all real numbers. B)Sine domain is restricted; Arcsin domain is all real numbers. C)Sine domain is all real numbers; Arcsin domain ...
August 30, 2016

Pre-Calculus
Use a graphing utility to graph the function y = d + a sin (bx - c) for different values of a, b, c, and d. Write a paragraph describing the changes in the graph corresponding to changes in each constant.
August 14, 2016

Pre-Calculus
You are given the value of tan Θ. is it possible to find the value of sec Θ without finding the measure of Θ? Explain.
August 12, 2016

Math
125
May 3, 2016

Math
opps i ment to put 1/2 sometimes it dosent work
May 3, 2016

Math
You read 50 pages in an hour. Your sister reads 40 pages in an hour. Explain how to find out how many more pages you read than your sister reads in 1212 hour?
May 3, 2016

Social Studies
The correct answer is B, abolish slavery by ratifying the thirteenth amendment and condemn the act of secession.
April 15, 2016

health
Trinity is correct, and 16 is B. Thanks Jake and Trinity. :)
March 8, 2016

science !!
The first one is D and the second one is B. Just took this, got 100%
March 3, 2016

college algebra2
a triangle whose base is 18 inches long has an area of 280 square inches. find the area of a similar triangle whose base is 6 1/4 feet long.
February 12, 2016

Science
Yes, the correct answer is definitely B, high altitude.
January 28, 2016

Social Studies Help
opps 1.A 2.B 3.C 4.A 5.D 6.B
December 15, 2015

Social Studies Help
1.A 2.B 3.C 4.A 5.A 6.D 7.B
December 15, 2015

Social Studies Help
The social unit most responsible for teaching the custom and traditions of a culture is? (A) The family (B) The government (C) The army (D) The schools Two important features of a culture are? (A) Weather and writing (B) Language (C) Economy and Climate (D) Natural resources ...
December 15, 2015

Math
ok
December 8, 2015

Math
I had chose B but i am not entirely sure
December 8, 2015

Math
Which number is equivalent to 14/4? A 3.2 , because 14 divided by 4 is 3 with a remainder of 2 B 3.5 because 14 divided by 4 is 3 with a remainder of 2 and 2/4 = 0.5 C 3.3 because 14 divided by 4 is 3 with a remainder of 3 D 3.6 because 14 divided by 4 is 3 with a remainder of...
December 8, 2015

Science
The answer is color.
November 29, 2015

Health
Thanks all! D False A 100%
November 17, 2015

Science please help :)?
Yes, those are the correct answers.
October 21, 2015

Shalee ^~^
Thanks bruh, you are correct. B C B A 100%
October 7, 2015

Science
The answers are: 4. A 12. B 15. C 16. B 17. C 19. A Trust me, 100%
October 6, 2015

Math
Hayden had 2 1/2 gallons of water in his watering can. The seed packet said to use 1/4 of a gallon for peppers and 5/8 of a gallon for tomatoes. Hayden then used some of the water for lettuce. If Hayden had 3/4 gallons of water left over, about how much water did he use for ...
September 28, 2015

Science
How can you evaluate scientific claims? NEED HELP!
September 18, 2015

Science
how can models help in science, why they are important, what and some examples of models.
September 18, 2015

Math
1/16
September 18, 2015

Physics
An 83-kg fireman slides down a fire pole. He holds the pole, which exerts 500-N steady resistive force on the fireman. At the bottom he slows to a stop in 0.49 m by bending his knees. Determine the acceleration of the fireman while sliding down the pole.
September 14, 2015

Art
Do all art paintings have culture in the paintings
August 31, 2015

Science
that is better Thxs That really helps me
August 29, 2015

Science
the model at UTPA
August 29, 2015

Science
Need some help? How is the model of King Tut like other models used by scientists?
August 29, 2015

LA
what is the difference between internal conflict and external conflict Need help A.S.A.P
June 15, 2015

6th Grade Math :(
welcome
June 10, 2015

6th Grade Math :(
about 4 hours
June 10, 2015

Math
oh ok i get it now
June 10, 2015

Math
i do not understand if it is 6% then is this explanation how you got 12%. which is it 6% or 12%
June 10, 2015

Social Studies
ok i will do it on my own good night
June 4, 2015

Social Studies
kk
June 4, 2015

Social Studies
ok srry my original question is Why did most major northeastern cities in the United States develop along the coast? and it does have why in the beggining
June 4, 2015

Social Studies
but i still do not get what reed means he says "The answer to "why" is "yes"
June 4, 2015

Social Studies
oh yeah
June 4, 2015

Social Studies
i do not get you reed
June 4, 2015

Social Studies
yes
June 4, 2015

Social Studies
is that right
June 4, 2015

Social Studies
ships
June 4, 2015

Social Studies
Why did most major northeastern cities in the United States develop along the coast?
June 4, 2015

Social Studies
:)
June 4, 2015

Social Studies
iris
June 4, 2015

Social Studies
i know you all might be mad but i need help again here is the question What region of the United States did the first settlers arrive
June 4, 2015

language arts
i agree it is awesome but the ending i was just made
June 4, 2015

Social Studies
oh ok i get it
June 4, 2015

Social Studies
now is that right reed
June 4, 2015

Social Studies
that the expansion of the US throughout the American continents
June 4, 2015

Social Studies
is that right reed
June 4, 2015

Social Studies
the belief or doctrine, held chiefly in the middle and latter part of the 19th century
June 4, 2015

Social Studies
opps srry wrong name United States that American settlers were destined
June 4, 2015

Social Studies
the belief or doctrine
June 4, 2015

Social Studies
well this is what i got the americans traveled to the west and settled does that sound right
June 4, 2015

Social Studies
oh well that was not me
June 4, 2015

Social Studies
oh well thank you
June 4, 2015

Social Studies
i know i just need help and no i did not ask for help on this question
June 4, 2015

Social Studies
How did the idea of Manifest Destiny influence settlement in the United States?
June 4, 2015

Computer Lit
that is very good
June 4, 2015

Social Studies
dumb srry
June 3, 2015

Social Studies
i know where the Statue of Liberty is i am not that done
June 3, 2015

Social Studies
:)
June 3, 2015

Social Studies
thxs
June 3, 2015

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