# Liana

Popular questions and responses by Liana
1. ## Life orientations

What are the negative impacts of risk behaviors on, social, economic, physical and emotional mental

2. ## Math

If you add the denominator to both the numerator and denominator of a fraction, you get a new fraction that sometimes is larger than the original fraction. Find a fraction where the new fraction is four times as large as the original fraction after you add

3. ## Math

At 1 pm two trains, traveling toward each other leave from towns that are 312 km apart. One train averages at most 82km/h and the other at most 74km/h. What is the earliest possible time for them to meet? Please help me solve this. I'm not exactly sure how

4. ## Geometry

Why is the apothem of an equilateral triangle one third its height?

5. ## biology

what kind of bond holds the hydrogen to the oxygen in one water molecule??

6. ## chemistry

What is the de Broglie wavelength in nm of a buckyball, (molecular formula C60), moving at speed 250 m/s? I don't understand how you find the mass from the molecular formula C60. The answer is 2.2*10^-3nm. I tried multiplying the mass of carbon by 60, but

7. ## Chemistry

What is the cation and anion symbol of Na3PO4?

8. ## Teacher Aide

Where would you most likely find a token economy as a form of classroom management? A} RRP B} Contract approach C} Contingency management approach D} RIP approach

9. ## EA

Anyone else working on An overview of teaching techniques study unit???

10. ## science

What causes soil erosion

11. ## math class

If f (3) = 9 and f ´(3) = 4, find the tangent line to the graph of f when x = 3. y = 4x - 3 y = 4x + 21 y = 9x - 23 y = 9x + 31

12. ## Geometry

Why is the apothem of an equilateral triangle its one third height?

13. ## Math

I have 13 tens who am I?

14. ## math class

Find the slope of the tangent line to the graph y = x^-3 at the point (0.5, 8). -48 -12 4 16

15. ## math

jessica has 24 shirts .1/6 are red.1/3 are yellow.4/12 are green. the rest are blue.how many are blue

16. ## biology

during the preparation of the capsule stain, the slide used to spread the India ink/bacteria mixture is discarded in the disinfectant solution why?

17. ## math 103

find a possible equation for a line that is perpendicular to the graph of 5x-3y=15 if the two lines intersect at x=15

how do you use thought in a sentence

1. ## Geography

Mrs sue are u an actual teacher tell the truth

posted on October 16, 2019
2. ## math

the common multiple of 9 and 15 is 90

posted on September 26, 2017
3. ## Math

4 hours.

posted on September 26, 2017
4. ## solubility

2.08*10^-9

posted on March 10, 2016