Keya

This page lists questions and answers that were posted by visitors named Keya.

Questions

The following questions were asked by visitors named Keya.

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?

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

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!

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

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

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

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

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

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

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

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

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.

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

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

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

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

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

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?

Answers

The following answers were posted by visitors named Keya.

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.

The Earth would not have seasons.

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

anyone did i get this right

Naomi, Macy, and Sebastian have 234 stamps in all. Naomi gives 16 stamps to Macy and 24 stamps to Sebastian. Naomi then has 3 times as many stamps as Macy, and Macy has twice as many stamps as Sebastian. How many stamps does Naomi have at first?