Solve using the multiplication principle: 5 b < -10?
Answer I’ll show you a slightly different way. I am assuming you know basic algebra. See, 5b <…
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Prime number question
Question 1) Show that if p >=5 is a prime number, then p^2 + 2 is composite (hint:…
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A Mean Value Theorem or MVT Question?
Question Find all numbers c between a and b for which: (f(b)-f(a))/(b-a) = f'(c) The Problem: f(x) =…
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Algebra: Solve x for [ {2 + (3^1/2)}^1/2]^x + [{2 – (3^1/2)}^1/2]^x = 4?
Answer The trick is this. SQUARE THE EQUATION. Note that : [{2 + (3^1/2)}^1/2]^x = [{2 + (3^1/2)}^(x/2)]…
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A tough Geometry Question
Question Two circles (⊙O and ⊙O’, the radius of ⊙O > the radius of ⊙O’) intersect at Point…
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What is 2+2?
Question I ame on Kindergardren ande i donot know de anwser to the qestion Answer 2 +…
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Digit problem?
Question If the digits 2,3,7 and 6 are arranged randomly so as to form a four-digit number,then how…
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How many real roots?
Question How many real roots does the following equation have: x^5 + 7*x^3 + 3*x + 2 =…
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Let n, m be an element of Z+ and a,b be elements of Z. Suppose that a=b(modn) and a =b(modm) and that (n,m)=1. Prove that a=b(mod nm)
Answer Z+ means positive integers. Proof. (a – b) is divisible by n. (a – b) = pn…
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Hyperbola problems?
Question About focus directrix and other information Answer The hyperbola is the least known and used of the…