Tuesday
February 9, 2016

Posts by Angelica

Total # Posts: 158

solid mensuration
Pyramid with a rectangular base 6 cm and 8 cm, lateral face makes an angle of 30 degrees with the base. What is the altitude of the pyramid?
January 21, 2016

Chemistry
Thank you so much
January 19, 2016

Chemistry
Which THE PH VALUE OF A solution 0,01 mol/l a monoacido that presents ka= 1×10-6
January 19, 2016

Chemistry
percent of gas
January 19, 2016

ELA
Think about the work you completed in your reading role. Determine the ideas that would be most worthy to share in a literary discussion about The Watsons Go to Birmingham---1963. Provide an explanation for your choices. How did the role you selected and the work you completed...
December 11, 2015

Technical writing
Either Chris or the new employee ________ the mail before Dolores or Charles ________.
November 23, 2015

math
Explain how you know if a number can be divided by 10 evenly
October 27, 2015

please help!!
Find the equation of the tangent line to the graph of f(x) = 2x − 6/x + 1 at the point at which x = 0. (Let x be the independent variable and y be the dependent variable.) I don't know how to find the derivative, i Keep getting it wrong. But I know where to go after ...
October 1, 2015

math
Thank you so much!
September 30, 2015

math
For what intervals is g(x) = 1/x2 + 1 concave down? (Enter your answer using interval notation.) For this question I understand that we have to find where the second derivative is negative. So first I found the first derivative and got 2x/x^4+2x^2+1 and then I took the second ...
September 30, 2015

math
For the derivative I got -4/(x+1)^2 by using the quotient rule. So then I plugged in zero and got -4 to be the slope. Then when I plugged 0 into the original function and got 2(0)-6/1 which meant that y=-6. Then I tried to find b by doing 6=-4(0)+b and got b to be -6. Thus my ...
September 30, 2015

math
Find the equation of the tangent line to the graph of f(x) = 2x − 6/x + 1 at the point at which x = 0. (Let x be the independent variable and y be the dependent variable.) I got this question wrong. I thought the answer would be y=-4x-6 I followed the following steps: 1...
September 30, 2015

Math
Oh wow, I was really off. Thank you so much for explaining it to me!
September 30, 2015

Math
I know that I have to apply the product or quotient rules for these problems but I'm not sure why I'm getting them wrong. Please help me! Find the derivative: 1) f(x) = x^6/108 times (6 ln(x) − 1) I got: 6x^5 times 6 ln(x)-1 + x^6/108 times 6/x 2) f(x) = (ax + b...
September 30, 2015

statistics
Pharmaceutical companies advertise for the birth control pill an annual efficacy of 98.6% in preventing pregnancy. However, under typical use the real efficacy is only about 95%. That is, 5% of women taking the pill for a year will experience an unplanned pregnancy that year. ...
September 21, 2015

math
Ronnie was 6 times as old as jhon 6 years ago. Four years from now ronnie will be 4 times as old as jhon. How old is jhon now?
September 8, 2015

Science
Im having trouble with reading a chemical equation. ( Numbers on the right side of the element are subscripts ) A) 2SO2 + O2 +2H2O -> 2H2SO4 1. How many total molecules are represented? ( I m having trouble recognizing when it s a molecule or just an element and which is ...
April 16, 2015

Science
Im having trouble with reading a chemical equation. ( Numbers on the right side of the element are subscripts ) A) 2SO2 + O2 +2H2O -> 2H2SO4 1. How many total molecules are represented? ( I m having trouble recognizing when it s a molecule or just an element and which is ...
April 16, 2015

grammar
We just moved from Atlanta, Georgia, to 2716 Hickory Blvd., Austin, Texas. Is this sentence correct? I think it's not. I think the answer should be: We just moved from Atlanta, Georgia to 2716 Hickory Blvd. Austin, Texas. I don't think commas are needed after Blvd. and...
February 25, 2015

honors chemistry
if you obtain 10 moles of water sugar sodium chloride copper and Styrofoam will each sample have the same number of particles?
February 24, 2015

honors chemistry
I'm having trouble with this question in my molar mass lab. if you obtain 10 grams of water, sugar, sodium chloride, copper, and Styrofoam will each sample have the same number of particles?
February 24, 2015

math
Henry is attending a rodeo in Union County. The nearest airport is in Vindale, which is 33 miles away. On a map, the rodeo grounds and the airport are separated by 3 inches. What scale does the map use?
February 17, 2015

grammar
Thank you for the help! I understand the number of people is plural. It is nice of you to tutor online. Thank you for what you do, it makes a difference.
January 28, 2015

grammar
Hello, and good afternoon. My question deals with subject verb agreements. I understand time periods and amounts are singular verbs. Here are my samples: 'Three weeks is a lot of time to do a project,' and 'One half of the children like cupcakes.' I know when ...
January 28, 2015

physics
A roller coaster car with a mass of 130 kg travels through a loop with a diameter of 20meters. What is the minimum speed at the top of the loop so that the car stays on the tracks? m= 130kg r= 10m v= ?
January 7, 2015

English
You rock! Thank you! I just got it. For what you do, thank you. I can't tell you how much you help.
December 16, 2014

English
Was is a linking verb, so let me think, would the clause that we will be moving in the spring be a predicate nominative because it is identifying or renaming the subject of the sentence? Is what the subject? Thank you for helping me. I'm more lost than I thought!
December 16, 2014

English
The sentence is 'What we forgot to mention was that we will be moving in the spring.' I found a clause, it's a noun clause. It's 'that we will be moving in the spring.' I think it's being used as a direct object. We is the subject. Forgot is the ...
December 16, 2014

math
I agree @shy @candy
December 16, 2014

English
Thank you Writeacher, I pray you are blessed for your help.
December 16, 2014

English
Yes, the sentences we receive are really bad! I've talked to this teacher about this. You know how there are some who feel they are above question? She's one of them. With that in mind, do you concur it's an adverb clause? Thanks so much!
December 16, 2014

English
The is the sentence I'm uncertain about: These old journals are wonderful to learn what life was like a century ago. I know the infinitive is 'to learn.' I think it is being used as an adverb. It's modifying the adjective 'wonderful.' It's not a ...
December 16, 2014

math
The correct answer is 15 bracelets
December 15, 2014

Physics
A 24g ball of clay traveling east at 3.3m/s collides with a 33g ball of clay traveling north at 2.4m/s . 1a)What is the movement direction of the resulting 57g blob of clay? 1b)What is the speed of the resulting 57g blob of clay?
December 7, 2014

Economics
How to get annual interest cost?
November 18, 2014

English
Okay, I think I got this. The subject is they and the verb is inhabit. "That" became a direct object. I think I understand! Thank you very much. I keep getting confused on questions like these in my homework. Thanks again, I am very grateful.
November 6, 2014

English
The verb in the clause is inhabit. The subject is they.
November 6, 2014

English
Hermit crabs rely on a supply of empty mollusk shells that they inhabit. What is the function of the relative pronoun in the clause 'That they inhabit'? A. Possessive B. Object of a preposition C. Direct object D. Subject I think it is either direct object or subject. ...
November 6, 2014

Algebra please help out
вαиαииαѕ=12. αρρℓєѕ=9 ρєαяѕ=18 ѕтяαωвєяяιєѕ=30
October 29, 2014

math
*I forgot to add that, I always get a never ending decimal as the answer... please help :)
October 18, 2014

math
Mike fills his car's tank up with 20 gallons of regular gas at $2.09 per gallon. His car averages 25 miles per gallon. How many miles can Mike drive on a full tank of gas?
October 18, 2014

Fractions
5.25 or 5 ft and 3 inch
September 23, 2014

Physics
Find the average velocity (in m/s) of an object that starts 200 meters north of town and is 1200 meters north of town after 200 seconds.
September 3, 2014

Pre cal
1.Find the domain of the function algebraically y=3x-1/(x+3)(x-1) y=(1/x)+5/(x-3) 2.Find the range of the function y=10-x^2 y=(3+x^2)/(4-x^2) Please help me understand how to do them.
September 1, 2014

math
= ( 1 + 3) * ( 6 - 4 / 2)
August 12, 2014

writing (and other)
i need HELP!i cant answer the questions about hard topics.in all subjects!please help me.........
August 9, 2014

Chem
For a particular reaction H = -32 kJ and S = -98 J/K. a.At what temp will the reaction be at equilibrium? b.If the temperature is increased from the equilibrium temperature what will happen?
July 30, 2014

Statistics
A researcher believes that the percentage of people who exercise in California is greater than the national exercise rate. The national rate is 20%. The researcher gathers a random sample of 120 individuals who live in California and finds that the number who exercise ...
May 11, 2014

math
.15
May 2, 2014

Trigonometry
An observer (0) spots a plane flying at a 55 degree angle to his horizontal line of sight.If the plane is flying at an altitude of 21,000 ft., what is the distance (x) from the plane (P) to the observer (0)
April 29, 2014

math
a jar contains 26 fluid ounces of spaguetti sauce. How many cups of spaguetti sauce do 4 jars contain?
February 20, 2014

Math
(4k+5)(k+1)=0
February 13, 2014

Math
My answer, that I got, was 225.
January 16, 2014

Chemistry
How many grams of NaCl are present in a 300 grams salt solution containing 9% NaCl ?
November 6, 2013

algebra
Beatriz is creating graphs for her city’s Parks Department. Beatriz is trying to persuade the Parks Department to put in more gazebos for shade. For a local park, Beatriz wants to demonstrate the attendance as it changes every week. She also wants to show the temperature ...
October 20, 2013

math
Don't know the answer
September 23, 2013

physics
The amount of energy needed to power a 0.10-kW bulb for one minute would be just sufficient to lift a 1.0-kg object through a vertical distance of
August 18, 2013

chemistry
N2(g) + 3H2(g) → 2NH3(g)+ 22,000 cal equals how much ΔH
June 3, 2013

math
45 Degrees
May 3, 2013

4th grade math
360÷18=20°=20÷50=40 which is 40 degrees for each part
April 16, 2013

Calculus
Find constants a and b in the function f(x)=axe^(bx)such that f(1/7)=1 and the function has a local maximum at x=1/7. a = b =
March 27, 2013

Science
The rms(root-mean-square) value of a periodic signal s(t) is defined to be rms [s]=(1/T Ss^2t dt)^1/2 where T is defined to be the signal's period: the smallest positive number such that s(t)=s(t+T). What is the rms value of the sinusoid s(t)=Asin(2πf0t)? (Again, ...
January 25, 2013

Science
What is the period of the sinusoid s(t)=Asin(2πf0t)
January 25, 2013

College Algebra
I am using Hawkes Learning System (8.7 Nonlinear Systems of Equations)and my problem is x^2+y^2=13 and y+7=x^2. The answers I came up with are 2 square root of 3 and 3 for my x's. And I received (5,-4) as the y-coordinates. Is this correct?
November 14, 2012

social studies
why did the gap between the rich and poor weaken the shang
October 26, 2012

7th grade math help asap plz
i'm in the 6th grade and i know the answere to that!!
October 21, 2012

Math
2-4 is 9
October 15, 2012

Math
which fractions are less than 5/6? 2/5 1/12 25/40 10/20 8/9 how do i know which is greater or less?
October 9, 2012

Math
which fractions are less than 5/6? 2/5 1/12 25/40 10/20 8/9 how do i know which is greater or less?
October 9, 2012

literature
What does the poet find ironic about her situation? In the poem In memory of M.B by Anna Akhmatova.
September 21, 2012

Math
😪😏😏😏
September 18, 2012

Physics
A car starts from rest and travels for 7.0 s with a uniform acceleration of +2.1 m/s2. The driver then applies the brakes, causing a uniform acceleration of -2.0 m/s2. If the brakes are applied for 1.0 s, determine each of the following. 12.6 m/s at braking period. How far has...
August 27, 2012

math
62 more than the quotient of 18 and 3
June 6, 2012

chemistry
Describe in detail, the steps a student needs to carry out to accurately obtain a 500 ml solution of .100 M HNO3 from a solution of 1M HNO3
April 13, 2012

physics - help !!!!!!!!
The magnitude of a vector is always : - a positive number - greater than 1 - an integer - none of the above. Thank you
April 12, 2012

government
C New judge is appointed
April 2, 2012

physics
The National Transportation Safety Board is testing the crashworthiness of a new car. The 1.87 103 kg vehicle, moving at 11.3 m/s, is allowed to collide with a bridge abutment, being brought to rest in a time of 0.463 s. What force, assumed constant, acted on the car during ...
March 11, 2012

chemistry
What is the volume of CO2 at 25 degrees C and 1.3atm if 10.0g of Cburns at STP?
February 26, 2012

Science
The rest stops the driver made are included in the calculations because that is hoe the problem is defined. However, suppose the bus driver's manager wants to know the average speed at which the driver was actually driving the bus that day while he was on the road. In this...
February 18, 2012

punctuation and grammer
My garden is full of water,because of yesterday's rain. Is this correct?
January 3, 2012

Anatomy
what is the white matter tracts in the ventral portion of the midbrain?
October 10, 2011

Math
Thank you I understand know
August 29, 2011

Math
Write the word form of the number that is 10,000,000 greater than 6,021,849.
August 29, 2011

Reading
Thank you so much I clearly understand now
June 16, 2011

Reading
Mary Olivers poem the journey explain the decision that the "you" in the poem made, and whether or not you think it was the right decision. I don't understand what their trying to say
June 16, 2011

Math
B.it has 4 right angles
April 7, 2011

economics
why was the federal reserve established ?
February 15, 2011

Language Arts
Pronuniation
January 19, 2011

11th grade
I need help interpreting a quote...." in this world goodness is destined to be defeated ".
December 9, 2010

Performing and Visual Arts
Why do humans create and perform?
November 26, 2010

U.s Gov
The fourth amendment was written in part to ensure the government did not allow ?
October 29, 2010

math
Help me with this please. I need statements and resons.
October 27, 2010

math
Given: line nm is congruent to qr; angle m and angle r are right angles; line mp is congruent to ro. Prove: triangle nmo is congruent to triangle qrp and angle n is congruent to angle q
October 27, 2010

math
inverse of y=-√(9-x^2 )
July 26, 2010

math
Find the inverse for graphing y=f(x)=3^-x
July 26, 2010

English 101
b,a,b,b,a,c,a,b,c,a,a,b
June 30, 2010

math
(x-1)(x+5) for x^2+4x-5
May 28, 2010

Chemistry
A popular brand of automobile radiator antifreeze advertises that their product (ethylene glycol; C2H6O2) provides engine protection from temperatures of -64C to 135C when mixed with water in a 50%/50% mix. What is the boiling point elevation and freezing point depression ...
April 19, 2010

answer please!!!!! Math
I'm having trouble with these 2 problems. (-7+p)(8+p) & (p-7)(p+8)
April 18, 2010

math, answer please!
I don't understand how you do these 2 problems. (p-7)(p+8) & (-7+p)(8+p)
April 18, 2010

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