Posts by les

Total # Posts: 28

Math
Determine the projection of u = 1.6i + 3.3j in the v = -2.1i - 0.5j direction a. 0.8i +0.2j b. 2.3i = 0.5j c.-0.6i-1.3j d. -1.2i-1.1j

math
Find the angle between u=(8,-3) and V=(-3,-8). Round to the nearest tenth of a degree

Chemistry
What is the total ionic and net ionic equation for this aqueous reaction?: Sr(OH)2(aq) + HClO2 (aq) -I wrote the molecular as: Sr(OH)2 (aq) + HClO2 (aq) ---> SrClO2 (aq) + H20 (l) -Is the Total Ionic: Sr2+ (aq) + 2OH- (aq) + H+ (aq) + 2ClO- (aq) ---> Sr2+ (aq) + 2ClO-(aq...

Chemistry
Thank you bobpursley!!!

Chemistry
How many aluminum atoms are there in 15.0mg of Al2O3?

English
Yes

Algebra
Find an equation of an ellipse satisfying the given conditions: ?Foci: ?(?2?,0) and (2?,?0) Length of major? axis: 8 Thank you

Math
104

Math
Deternmine the volume of a cylinder with a radius of 5cm and a height of 30cm. How long would it take it to fill this cylinder with water if you were using a fountain with a flow rate of 2400 mL/min? 1cm^3=1mL

Math
Find the smallest value of x such that x^2+6x + 9 = 24.

math
Find the constant c that makes the quadratic x^2 + 7x + c the square of a binomial.

Graphs
The graph of y = f(x) is shown below. Assume the domain of f is [-4,4] and that the vertical spacing of grid lines is the same as the horizontal spacing of grid lines. The points (a,4) and (b,-4) are on the graph of y = f(2x) Find a and b.

Math
A B C B

statistics
One of nature's patterns connects the percent of adult birds in a colony that return from the previous year and the number of new adults that join the colony. Following are data for 13 colonies of sparrowhawks: Percent return 73 61 79 54 75 62 53 46 57 50 62 45 35 New ...

trigonometry
An airplane flying at an altitude of 5100 ft is 12000 feet from an airport. what is the angle of elevation of the plane? I don't know how to start the problem.

geometery
a worker walked 8ft. upa ramp and was 3ft. above ground level. If he walkes an additional 12ft. up the ramp,how many ft. will he be from the ground?

reading
Why do you think the earth's crust is thicker under land than under bodies of water?

7th grade Math quick help Ms. Sue
seriously guys? i go to connections too and we all need help sometimes just calm down

trig
determine the period of y = tan 2x

Anthropology
b

math
how to convert 4.50 cubic feet to milliliters

12th grade
If a car is accelerating downhill under a net force of 3674, what additional force would cause the car to have a constant velocity?

chemistry
Compute the freezing point of this solution: 25.5 g C7H11NO7S (4-nitro-2-toluenesulfoinoic acid dihydrate) in 100 g H2O. (nonionizing solute)

6th grade language arts
What is a mood/tone map?

5th grade
why the climate in the appalachian mountains would be warmer the the rocky mountains

religion
Speaking as a westerner who is studying Buddhism, as a mode of living not necessarily a religion, I also find myself wondering whether or not there was only one Buddha. This question occurred to my while reading "Alone with Others an Existential Approach to Buddhism"...

English
Consider the sentence: Jim wore a red jacket and hat. Does the adjective red apply to both the jacket and the hat? In my opinion it does but it lacks clarity. Is there a reference anywhere to support either side of this argument? There are strong pros and cons on this. ...

science
Please unscramble acronoc,glataroil, frete, estoroit, whockudoc. http://wordsmith.org/anagram/