Jaya

Most popular questions and responses by Jaya
1. chemistry

if the mass of protons are halved and that of neutrons doubled to that of the actual values, what percentage change would have been found in the atomic mass of chromium whose actual atomic mass is 52.

2. physics

an object 5cm lenght is placed at distance of 20cm in front of a convex mirror of radius of curvature 30 cm . find the position of the image

3. maths

the diagonal of a rectangular plot is 250m long. If the length of a side is 125m, find the angle of the diagonal makes with this side

4. English

whay are the effective study techniques

5. Physic

Where does an object weight most?

7. maths

principal=Rs.3,750,rate of interest=8%p.a,time=2years

8. Math

Two simple of sizes 8&10 are drawn from two normally distributed population having variance 20 and 36 respectively. Find the probality that the variance of the first sample is more than twice the variance of the second sample

9. Algebra

Use the sqaure root property to solve the equation. 7x^2-4=0

1. math

no

posted on June 16, 2019
2. science

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posted on October 30, 2017
3. maths

(x-alpha) (x-beta)(x-gama) = x^3 - 12 x^2 + 44x+c. So x^3 - x^2 (alpha+beta+gama)+ a(alphabeta+betagamma+gamma alpha)=alpha beta gama = x^3 - 12 x^2+44x+c, then alpha+beta+gama = -12.

posted on July 17, 2017

1. Question : In a Presidential election, the candidate must Student Answer: win both the popular and electoral vote. win the Supreme Court vote. CORRECT win a minimum of 270 electoral votes. win majorities in ¾ of the states. Instructor Explanation: The

posted on December 15, 2014
5. Chemistry- college

A: you can either look at the properties table or use -74.9kJ/mol= x + 92.3 kJ/mol and solve for x which is -167.16...... juse the equation deltaH= Sum deltaH of products - sum deltaH of reactants idk how to do B yet

posted on December 9, 2012
6. Math

7(x-2)+3(x+2)=5(x-6) 7x-14+3x+6=5x-30 -distribute 10x-14+6=5x-30 -combine like terms 10x-8=5x-30 -get x's on 1 side 5x-8=-30 5x=-22 -isolate the x x=-22/5

posted on June 12, 2011
7. Algebra

just distribute, then combine like terms: if it helps break it down: 4(7x),4(-1)=3(2x),3(1)=-4(x),-4(6) so then you have: 28x-4=6x+3-4x-24, then just combine like terms, you goal is to isolate the variable

posted on June 12, 2011
8. Algebra (I think)

40(x)+13(1.5x)=833 =40x+20x=833 =60x=833 x needs to be isolated, so divide 60 from 833 x=833/60 x=14 hourly rate =\$14.00 overtime rate=1.5(14)=\$21.00

posted on May 29, 2011
9. Physics

You just use the equation vf=vi+at. Your initial velocity would be zero since it's starting from rest, your acceleration in this case would be 4.8 m/s^2, and your time would be 2.3 seconds. Your answer will be 11.04 m/s.

posted on January 23, 2011
10. chemistry

use the equation M1V1 = M2V2

posted on May 5, 2010
11. math function rule input/output

need help doing my homework

posted on September 16, 2008