# Posts by Keya

Total # Posts: 38

Algebra
What do they call bowling in hawaii?

maths (trigonometry)
The angle of elevation and angle of depression of the top and base of a mobile tower from a mobile handset are 60 degree and 30 degree respectively. If the distances of the top and the base of the tower from the mobile handset are 15m and 8m respectively, find the height of ...

maths
The angle of elevation and angle of depression of the top and base of a mobile tower from a mobile handset are 60 degree and 30 degree respectively. If the distances of the top and the base of the tower from the mobile handset are 15m and 8m respectively, find the height of ...

College Physics
A 1670 kg car rolling on a horizontal surface has a speed of 80 km/hr when it strikes a horizontal coiled spring and is brought to rest in a distance of 6.5 m. What is the spring constant (in N/m) of the spring? (Ignore nonconservative forces such as friction.) Now I've ...

physics
A motorcycle traveling 95.0 km/hr approaches a car traveling in the same direction at 85.0 km/hr. When the motorcycle is 55.0 m behind the car, the rider accelerates and passes the car 18.0 s later. What is the acceleration of the motorcycle (in meters/second^2)?

Physics
Two trains approach each other on parallel tracks. Each has a speed of 20.0 km/hr with respect to the earth. If they are initially 18.0 km apart, how long (in seconds) will it be before they pass each other?

math
which equation is related to the given equation x+13=57

math
solve the following system of the equations using matrices 10x-5y=4 7x+y=10

Math
evalate determinant |-4 -6| |6 8|

math
solve using any appropriate method 10x+y=278 10y+x=107

math
solve using any appropriate method 0.05x+0.25y=99 0.15x+0.05y=108

Math
solving using the elimination method 2r-7s=-6 7r_2s=32

co-ordinate geometry
The joining straight line of the points(3,4)and (2,-1) is perpendicular on the points (k,o) and (2,3k) then find out the value of k.

Math
1/4(8y+4)-18<-1/2(4y-6) Solve

Math
solve the following system of equations using matrices 4x-2y=7 7x+y=13

math
a rectangle's width is one-fifth its length, its perimeter is 60m. find the dimensions of the rectangle

math
anyone did i get this right

math
simplify and write scientific notion for the answer. Use the correct number of significant numbers. (2.74*10^5)(2.2*10^-13) The answer that i got was 6.03 * 10^-19

Math
Jack is 19 years older than Tom. Together their ages 161 years . What are their ages

math
find the product and write in lowest term. -3/7(14/15)

Math
a rectangle's width is one-seventh its length, its perimeter is 160m. find the dimensions of the rectangle.

economics
An increase in an economy's resource pool will: 1)shift the short-run aggregate supply curve inward. 2)cause a movement along the long-run aggregate supply curve. 3)will shift both the long-run and short-run aggregate supply curves outward. 4)will shift the long-run ...

Calculus
INT 1/sqrt e (the constant) dy from 1 to infinity. Determine if it is convergent or divergent

Calculus
sorry if i was not clear. it is INT 1/sqrt e (the constant) dy from 1 to infinity. Determine if it is convergent or divergent

Calculus
Determine if convergent or divergent: Integral 1 to infinity of e to the power of (-1/2).

6th G-Math
C - If the men-to-women ratio is 1:1, then you know that the theatre has the same number of men and women. Women are exactly half the people in the theatre; therefore the women-to-total ratio is .50.

Earth/Space Science
The Earth would not have seasons.

Chemistry
Calculate how many moles of sodium hydrogen carbonate are needed to produce 59 grams of H2O.

Chemistry
Calculate how many moles of sodium hydrogen carbonate are needed to produce 59 grams of H2O.

math
at 12 noon ship A is 65 km due north of a second ship B. Ship A sails south at a rate of 14km/hr, and ship B sails west at a rate of 16km/hr. How fast are the two ships approaching each other 1.5 hours later at 1:30pm?

Calculus
at 12 noon ship A is 65 km due north of a second ship B. Ship A sails south at a rate of 14km/hr, and ship B sails west at a rate of 16km/hr. How fast are the two ships approaching each other 1.5 hours later at 1:30pm? Thank You!

Calculus
For what values of x is the graph of the function f(x)= x^2e^x concave down. Give your answer using exact values

Biology
Describe how the location of each part of the cellular respiration is diffrent in bacteria and in more complex cells?

Calculus
If the normal to f(x)= (3x/(1+x)) at (2,2) cuts the axes at B and C, determine the legnth of BC.

math
A Standard sheet of typewriter paper is 8 1/2 in. by 11 in.. Don types on a 7 in by 9 in. area of the paper. What is the area of the margins?

math
The volume of a ball is 36 pi cm^3. Find the dimensions of a rectangular box that is large enough to hold the ball.

chemistry
what is the solubility of sodium nitrate at 44 degrees Celcius

com140
Suggest two tips for creating academic documents not mentioned in the resources. Which guidelines are most important for formatting? Which guidelines are less important to a business document but more important to an academic paper?