Saturday
December 10, 2016

Posts by catalina

Total # Posts: 39

precalc
A windshield wiper on a certain model car pivots through an angle of 123°. The total arm and blade length is 24 inches. If the blade is 21 inches, what is the total area of windshield being cleaned by the wiper?
November 7, 2016

physics
The drawing shows a skateboarder moving at 7.59 m/s along a horizontal section of a track that is slanted upward by 55.0 ° above the horizontal at its end, which is 0.741 m above the ground. When she leaves the track, she follows the characteristic path of projectile ...
March 17, 2014

social studies
A U.S nickname of the world
March 6, 2014

geometry
Álgebra if a supplement of an angle has a measure 78 less than the measure of the angle,what are the measures of the ángeles?
August 8, 2013

so is it okay if you explain to me why we multiply first and then divide???
October 1, 2012

oh sorry my bad thank you ms.sue :))
October 1, 2012

so could you help me with number 2???
October 1, 2012

I mean 80 not 45
October 1, 2012

but why would you multiply and then divide?
October 1, 2012

that would equal 45?
October 1, 2012

1) of the dolls in mo's doll collection, 1/5 have red hair. of these 3/4 have green eyes. what fraction of Mo's dolls collection have both red hair and green eyes? 2) ( Use measurement conversions) find 1/2 of 1/4 of a gallon. 3) Cheryl is organizing her movie ...
October 1, 2012

Please people i really need help with this question this assignment is due first thing in the morning and i still have a ton of other homewrok to do!!
September 25, 2012

1) a classmate states that igneous rock must always become sedimentary rock next, according to the rock cycle. explain why this statement is incorrect. 2)why would granite have larger crystals than igneous rock s formed when lava cooled above the earth's surface?
September 25, 2012

Math
okay I get it now. Thank you for your help :)
September 25, 2012

Math
explain more in detail for me please
September 25, 2012

Math
i don't understand why we have to add 1/5 + 2/3. can you
September 25, 2012

Math
Kate saves 1/5 of her allowance and spends 2/3 of her allowance at the mall. what fraction of her allowance remains?
September 25, 2012

civics
There are others who need help as well anyways. I don't want to keep them all waiting. Thank you so much!!!
September 23, 2012

civics
if you cant help that is fine but i really appreciate your effort into trying to help me with this question!!! thank you soo much for your time. But i will somehow manage to solve this question. Thank you again!!!
September 23, 2012

civics
u.s. civics
September 23, 2012

civics
it doesnt say which country it just said the pacific region. :(
September 23, 2012

civics
Q: which industries in the pacific region most affect the nation. can someone please take their time and please help me with this question? Thank you!!!
September 23, 2012

Calculus
Use a graphing calculator to graph f(x)=x^4-6x^3+11x^2-6x. Then use upper sums to approximate the area of the region in the first quadrant bounded by f and the x-axis using four subintervals.
February 26, 2011

honors English
In "The Cross of Snow," the images of a halo, fire, and sunlight contrast with the- (which one??) A- image of a snowy, sun-capped mountain B- face of the speaker's dead wife C- image of a sunless mountain ravine D- memory of a happy marriage
January 20, 2011

Math
yes, parenthesis are necessary. why? following order of operations, -PEMDAS- parenthesis come first. this is telling you in the first problem that 3 is first multiplied by 5 to get 15, and then you add 2 to 15. =17 for the second one, first you have to add 2 and 3 to get 5, ...
January 20, 2011

chemistry
Determine the minimum volume of 6.40M HNO3 required to dissolve a 2.40g sample of Cu. 2NO3-(aq)+8H+(aq)+3Cu(s)-->2NO(g)+4H2)(l)+3Cu2+(aq)
April 28, 2010

Chemistry Help(Calorimetry)
the number of calories needed to raise the temperature of 100 grams of water 10 degrees Celsius is the same as the number of calories needed to raise the temperature of 1,000 grams of water what amount?
April 9, 2010

Algebra
Gdhdhdhdhdjfjfjfjfjfjfjfjf
September 15, 2009

english composition
October 11, 2008

math
what is the most probable next term? 3 6 9 15 24 39 ? I do not understand? you add 3 then 3 then 6 then 9 then 15 I do not see the pattern...please help catalina the answer is 57
June 4, 2007

math
If you add two-thirds of a number to the number itself, you get 40. What is the number? I do not know how to set it up? 2/3n + n = 40 Solve for n. I don't know but thak you sooooooooooo much for helping me on my mixed #'s!!!!!!!! Good Luck!!!!!! I don't know but ...
February 7, 2007

math
Q. The sum of the measures of two supplementary angels is 180 degrees. If one angel measures 45 degrees less than twice the measures of its supplement, find the measure of each angle? what steps do I need to take in order to get the measurments? A1 + A2 = 180 2*A1 - 45=A2 I ...
January 28, 2007

math
Q. five times the sum of 3 and some number is 70. What is the number? I did the problem and got 13...but the answer is 11. I cannot figure out what I am doing wrong?? You must use parentheses when it says sum. 5(x +3) = 70 is correct set up. 5(x +3 )= 70 5x + 15 = 70 5x = 70...
January 26, 2007

math
Q. Naomi has a formula that allows her to convert Clesius temperatures to Farenheit temperatures. She needs a formula for converting Fahrenheit temperatures to Celsius tempertures. What advice can you give her? I am thinking that I just reverse the preocess of the first ...
January 24, 2007

math
2/3(7/8-4x)-5/8=3/8 I do not underdtand the steps?? Do I find a common denominator for all the fractions? Step 1. Clear the parentheses. Step 2. Multiply through by 24. Step 3. Solve for x. when I clear the parenthesis do I distribute 2/3 or do I just take out the parenthesis...
January 21, 2007

math
problem remove parentheses and simplify 5x-(2x+7) I am getting 3x+7 is that wrong? The - sign carries through to both terms within the parentheses, so: 5x-2x-7 3x-7 I get it thank you
January 19, 2007

math
Can someone please help me with this, -x/y = 2/9 I do not understand how to solve.... thanks -x/y = 2/9 multiply by 9y 9y*(-x/y)= 9y*(2/9) -9x = 2y can you take it from here? thank you
January 18, 2007

math
Instructions: Tell whether each expression represents a positive number or a negative number when m and n are negative. problem: -n/-m If both m and n are negative, then both -m and -n (numerator and denominator) are positive. What does that tell you about the fraction?
January 14, 2007

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