Monday

January 23, 2017
Total # Posts: 1,393

**Math**

Consider the set of integers greater than -2 and less than 6. A subset of this set is the positive factors of 5. What is the complement of this subset? a. {0,2,3,4} b. {-1,0,2,3,4} c. {-2,-1,0,2,3,4,6} d. {-2,-1,0,1,2,3,4,5,6} I think it's d, even though it's not ...

*May 25, 2009*

**Math**

thanks

*May 25, 2009*

**Math**

How do you find the answer for this: Pam is playing with red and black marbles. The number of red marbles she has is three more than twice the number of black marbles she has. She has 42 marbles in all. How many red marbles does Pam have? a. 13 b. 15 c. 29 d. 33

*May 25, 2009*

**Math**

ok

*May 25, 2009*

**Math**

How do you solve this problem: Jack brought 3 slices of cheese pizza and 4 slices of mushroom pizza for a total cost of $12.50. Grace bought 3 slices of cheese pizza and 2 slices of mushroom pizza for a total cost of $8.50. What is the cost of one slice of mushroom pizza? a. $...

*May 25, 2009*

**Math**

thanks

*May 25, 2009*

**Math**

What does it mean to solve a system of equations like y=x^2+4x-5 and y=x-1 graphically?

*May 25, 2009*

**Math**

thank you!

*May 25, 2009*

**Math**

How do you solve this question: The cost of 3 markers and 2 pencils is $1.80. The cost of 4 markers and 6 pencils is $2.90. What is the cost of each item?

*May 25, 2009*

**Math**

thanks

*May 24, 2009*

**Math**

Write an equation that represents the line that passes through the points (5,4) and (-5,0). I got y=2/5 * x is that right?

*May 24, 2009*

**Math**

how can I graph -1 ¡Ü x ¡Ü 3?

*May 24, 2009*

**Math**

I have to draw the graph of y=2^x over the interval -1¡Üx¡Ü3. I don't know what they mean by over the interval..

*May 24, 2009*

**Science**

thanks

*May 24, 2009*

**Science**

Type Earth Science Reference Tables in google, and pick the 3rd one. Then go to page 15, the top.

*May 24, 2009*

**Science**

Which star shown on the luminosity and temperature of stars graph in the Earth Science Reference Tables is currently at the Sun's final predicted stage of development, and how do you know? a. Polaris b. Procyon B c. Sirius d. Rigel

*May 24, 2009*

**Science**

thanks

*May 23, 2009*

**Science**

Is there a relationship between the time of sunrise and the daily high temperature?

*May 23, 2009*

**Math**

thanks

*May 23, 2009*

**Math**

I think that "number sold" is the dependent variable, and "average price" is the independent variable. Am I right?

*May 23, 2009*

**Math**

thanks

*May 23, 2009*

**Math**

I'm making a graph, but I can't tell which is the independent or dependent variable? they are "dollars spent" and "gallons bought". which one depends on the other?

*May 23, 2009*

**Math**

Is it possible to factor 2w-1-w^3? If so, how?

*May 21, 2009*

**Math**

thanks

*May 20, 2009*

**Math**

In this problem: -2/a+2 + 3a/2a-1 First I made the denominators alike: -2(2a-1)/(a+2)(2a-1) + 3a(a+2)/(a+2)(2a-1) = -4a+2/(a+2)(2a+1) + 3a^2+6a/(a+2)(2a-1) What I want to know is if I can eliminate the a+2 for the first fraction, on both the numerator and the denominator?

*May 20, 2009*

**Math**

Can I simplify the second fraction by dividing the numerator and denominator by 3b?

*May 20, 2009*

**Math**

In this problem: 5/12b + 15/36b^2 First I made a common denominator: 15b/36b^2 + 15/36b^2 Then I simplified the first fraction: 5/12b + 15/36b^2 Can I simplify the second fraction by 3b? If I can, what am I supposed to get?

*May 20, 2009*

**Math**

Are you sure it isn't 10b?

*May 18, 2009*

**Math**

In (8b+2b^3)/(b-1), Do you have to put a zero coefficient in it?

*May 18, 2009*

**Math**

Which ordered pair is a solution of the system of equations y=x^2-x-20 and y=3x-15? a. (-5,-30) b. (-1,-18) c. (0,5) d. (5,-1) When I solved the system of equations I got 5 and -1. What do I do next?

*May 17, 2009*

**Math**

How do you do this, I keep on getting 3.. There is a right triangle. One angle is 30 degrees. The hypotenuse is 24. What is the value of x, the adjacent, to the nearest whole number? a. 12 b. 14 c. 21 d. 28

*May 17, 2009*

**Math**

Thanks

*May 16, 2009*

**Math**

What is an equation of the line that passes through the points (3,-3) and (-3,-3)? how do you figure this out: a. y=3 b. x=-3 c. y=-3 d. x=y

*May 16, 2009*

**Math**

I used an online graphing calculator..so maybe it's different like that?

*May 16, 2009*

**Math**

thanks

*May 16, 2009*

**Math**

Suppose Triangle ABC has right angle C. Find the measures of the other sides to the nearest whole number if...? the measure of angle A is 32 degrees, and the measure of AB is 42. For one side, I got 23, and for the other side, I got 35. Am I right?

*May 16, 2009*

**Literacy**

thanks

*May 14, 2009*

**Literacy**

Does flowering and blooming rhyme?

*May 14, 2009*

**Math**

thanks

*May 14, 2009*

**Math**

How do you simplify 5-4n/4n-5?

*May 14, 2009*

**Math**

thanks

*May 14, 2009*

**Math**

How do you factor 2x^2+2x?

*May 14, 2009*

**Math**

i meant the first instance. thanks

*May 14, 2009*

**Math**

Can you simplify 15 sqrt3 / 3 into 5 sqrt 3? why or why not?

*May 14, 2009*

**French**

How do you say the country Zaire in French?

*May 13, 2009*

**Math**

Simplify - sqrt 12b^2 * 2 sqrt 8b. I got -8 sqrt 6

*May 12, 2009*

**Science**

thanks

*May 12, 2009*

**Science**

I don't know..I think it's supposed to be switched in the southern hemisphere, so december?

*May 12, 2009*

**Science**

Why is it that in late August, the amout of sea ice surrounding the continent of Antarctica approaches its greatest extent? And why is it that in February, the sea ice surrounding Anarctica is at it's minimum extent?

*May 12, 2009*

**French**

oh, I forgot all about that..thank you!

*May 12, 2009*

**French**

in this: Question: ¨¤ qui aimes-tu rendre visite? Response: J'amie rends visite ¨¤ ma cousine. So my mistake was that it was supposed to be rendre, but I don't understand why..aren't you supposed to conjugate it to rends?

*May 12, 2009*

**Math**

thanks

*May 11, 2009*

**Math**

There's a right triangle. There's an angle that measures 41 degrees. The hypotenuse is x, and the angle opposite 41 degrees measures 25 in length. How can I find what x is? The proportion set up is 25/x, but how do you solve for x?

*May 11, 2009*

**science**

is able to change shape. this requires energy

*May 11, 2009*

**Math**

50. If you take half of 50, it's 25.

*May 11, 2009*

**French**

are you sure? This question was on a quiz I took, and my teacher circled rends and took off a point..

*May 11, 2009*

**French**

No, that was a typo. I meant to say J'aime. and both question marks are a with an accent grave.

*May 11, 2009*

**French**

What's wrong with my response in this: Question: À qui aimes-tu rendre visite? Response: J'amie rends visite à ma cousine.

*May 11, 2009*

**Math**

how does sqrt 18=3sqrt2?

*May 11, 2009*

**Math**

¡Ì means sqrt. Simplify (2¡Ì6+3¡Ì3)(¡Ì6-5¡Ì3) I got 15¡Ì2 -45.

*May 11, 2009*

**Math**

Another painting has length : width ratio approximately equal to the golden ratio (1 + sqrt 5) : 2. Find the length of the painting if the width is 34 inches.

*May 10, 2009*

**Math**

A firefighter is on the fifth floor of an office building. She needs to throw a rope into the wiindow above her on the seventh floor. The function h=-16t^2+36t models how high above her she is able to throw a rope. If she needs to throw the rope 40 ft above her to reach the ...

*May 9, 2009*

**Science**

thanks

*May 9, 2009*

**Science**

Why can there only be a solar eclipse with a new moon, not a full moon?

*May 9, 2009*

**Science**

thanks

*May 9, 2009*

**Science**

Is there another website? May 15th isn't on there..

*May 9, 2009*

**Science**

Is there any website that can tell me what the phase of the moon will be on May 15th?

*May 9, 2009*

**Science**

thanks

*May 9, 2009*

**Science**

what is the earth's time system based on? I think it's time zones..

*May 9, 2009*

**Math**

how did you get (10/12) sqrt 3?

*May 9, 2009*

**Math**

How do you simplify 5/¡Ì12? I know you have to multiply the denominator,¡Ì12, by a radical to make a perfect square.. I think you're supposed to multiply it by 12? But there seems to be other numbers multiplied by 12 that can make a perfect square...

*May 9, 2009*

**Math**

how do you solve this system? I'm using substitution.. y=3x+4 y=-x^2 First I combined it: -x^2=3x+4 I don't know how to solve it now..

*May 6, 2009*

**Math**

how many solutions are in this system: y=x^2+2x+5 y=-2x+1 I'm not sure, but I got no solutions.

*May 6, 2009*

**French**

do you know why I shouldn't include the ¨¤? and why the que shouldn't be there?

*May 6, 2009*

**French**

Question: Pendant que les vacances, ¨¤ qui rends-tu visite? My response: Pendant que les vacances, je rends visite ¨¤ ma grand-m¨¨re. am i right? i'm confused as whether or not i'm supposed to put the ¨¤ after visite.

*May 6, 2009*

**Math**

would i still get it right if i didn't factor out the gcf?

*May 5, 2009*

**Math**

on a test, if i put one of the answers i put above, would i still get it right?

*May 5, 2009*

**Math**

What do you get when you factor 2q^2+22q=-60? Is there more than one answer possible? I got 2 answers: 1. (2q+10)(q+6) 2. (2q+12)(q+5)

*May 5, 2009*

**French**

like you can't say "Le restaurant le plus bon est...",but you can say "Le restaurant le moins bon est...".

*May 4, 2009*

**French**

Why do you have to replace plus bon ina sentence with meilleur, but not when you're using moins bon?

*May 4, 2009*

**Math**

How did you get (3q + 1)(q +1) = 0? What happened to the 15?

*May 4, 2009*

**Math**

What are you supposed to get when you factor 3q^2+16q=-5? I got (q+3)(3q+1)

*May 4, 2009*

**Science**

ok thanks

*May 2, 2009*

**Science**

What time of day is hotter, 12 noon or 2pm? I know it's 2pm from experience, but I don't know why it's like that..

*May 2, 2009*

**Math**

thanks

*May 2, 2009*

**Math**

A math class has 25 students. There are 13 students who are only in the band, 4 students who are only on the swimming team, and 5 students who are in both groups. How many students are not in either group? I think it's 3 students?

*May 2, 2009*

**French**

thank you

*May 1, 2009*

**French**

is this correct too? this is what i ended up writing: La matière la plus utile est les sciences.

*May 1, 2009*

**French**

In French, how do you say "The ost useful subject is science? I need to know how to say the science part..is it plural, like math, and is it masculine or feminine?

*May 1, 2009*

**French**

thanks

*May 1, 2009*

**French**

yeah, that's the one! i remember now thanks

*May 1, 2009*

**French**

is there another way?

*May 1, 2009*

**French**

how do you say "subject" in french? I think there's one way to say it that starts with an m?

*May 1, 2009*

**Math**

the ways above is probably easier, but my teacher probably wants me to solve it by factoring..

*April 30, 2009*

**Math**

The sides of a square are all increased by 3 cm. The area of the new square s 64 cm^2. How can you find the length of a side of the original square?

*April 30, 2009*

**Math**

ok thanks..

*April 30, 2009*

**Math**

how do you factor 4x^2-35x-9=0?

*April 30, 2009*

**Science**

thank you!

*April 30, 2009*

**Science**

When it's winter in the northern hemisphere, it's summer in the southern hemisphere. So, if it's April in the northern hemisphere, is it still April in the southern hemisphere?

*April 30, 2009*

**Science**

If Earth's axis had no tilt, we'd only have spring and fall for seasons, right? But which hemisphere would get the vernal equinox and which would get the autumnal?

*April 29, 2009*