If p,q,r are real numbers satisfying condition p+q+r=0 then roots of quadratic equation 3px^2+5qx+7r=0 are
If p,q,r are real numbers satisfying condition p+q+r=0 then roots of quadratic equation 3px^2+5qx+7r=0 are
Let a,b and c be real number such that 4a+2b+c=0 and ab>0 then quadratic equation ax^2+bx+c=0 has A. real roots B.complex roots C. purely imaginary D. only...
3200+25/100(3200)= 400d
2 hikers set out from the same campsite. One walks 7km in the direction of 043°T and the other walks 10km in the direction 133°T. What is the bearing of the first hiker from the second? I...
There are 30 terms in an arithmetic pregression. The 2nd and 3rd terms are distinct integers. The ratio of the 1st 20 terms and the sum of the 1st 10 terms equals twice the ratio of the 2nd...
how would i find the cosine of the angle between the plane z−3x+2y = 11 and the y-axis? Thanks for help
If a and b (not equal zero) are the roots of the equation x^2+ax+b=0, then find least value of x^2+ax+b (x belongs R)
condition for a quadratic equation to have one positive and 1 negative root is
The spider web consists of four straight threads each of length 2 metres. They intersect to form a square of side length 1 metre, with 0.5 metres protruding at either end. What is the largest...
Carlisle conducted an experiment to determine if the there is a difference in mean body temperature for men and women. He found that the mean body temperature for men in the sample was 97.9 with a...
Among 40 people, 25 like black, 30 like red, 35 like white, at least how many people like all 3 colours?
Find an equation for an ellipse with foci (3,4) and (3,6) and vertices (3,1) and (3,9). _________ = 1 ...
Use the binomial theorem to find expressions in terms of r1 and r2 for: i. (x^3+y^3) ii. (x^4+y^4) r1=(x+y) and r2=(xy)
hey please help in getting this answer for the question. thanks
if x belongs R then x^2+2x+a/x^2+4x+3a can have all real values if?
f(t) =tcost, find the f ' ' ' ( 0 ), thanks!!
prove that the set of integers,thats an infinite set is smaller than the set of real numbers, that too is an infinite set.
My university course is weighed 1/3 in second year and 2/3 in third year if i got 58% in second year what do i need to get in third (final) year to get 60% overall?? Please help.
Find the center and the foci of the ellipse given by the equation -y^2+10y-4=9x^2+12x. At what points, if any, does this ellipse intersect the line
The values of x for which y= 2x3 - 12x2 +18x +7=0 is increasing are?