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1. ### Which ordered pairs are in R ^-1?

The inverse relation R ^-1 consists of the ordered pairs obtained by ... of B, so the pairs (2,2), (2,6), and (2,8) are in R .  3 divides 6, but no other element of B. So the pair (3,6...

1 Answers · Science & Mathematics · 20/08/2020

2. ### determine the value of R ?

Total resistance of the branch on the right = 40 + R [1] Resistance of 30 ohms in parallel... = 75 * (30(40+ R )/(70+ R )) / (5 + 30(40+ R )/(70+ R )) * R /(40+ R ) [4] But...

2 Answers · Science & Mathematics · 21/09/2020

3. ### Let R be the region in the xy-plane which lies below the curve y = ^3, above the x-axis and for which 0 ≤ x ≤2.?

a) Given Integral I= ∫∫ R (+)A where R is the region in the xy-plane which lies below...

1 Answers · Science & Mathematics · 19/07/2020

4. ### Find value of R and a such that: 5coshx-4sinhx=Rcosh(x-a)?

...5 * e^(x) - 4 * e^(x) + 5 * e^(-x) + 4 * e^(-x)) => (1/2) * (e^(x) + 9 * e^(-x)) r * cosh(x - a) = r * (1/2) * (e^(x - a) + e^(a - x)) r * (1/2) * (e^(x - a) + e^(a...

1 Answers · Science & Mathematics · 18/11/2020

5. ### Let r be a binomial random variable representing the number of successes out of n trials.....?

...space must equal 1.  (b) since the sum of all probabilities  =  1 P( r >=1)  =  1 - P( r is not greater than one)  The only...

1 Answers · Science & Mathematics · 30/10/2020

6. ### [Discrete Math] Show that the relation R = {(A, B) | A ⊆ B} on P(U) is transitive where U denotes the universal set?

Let (A,B) ∈ R and (B,C) ∈ R then A ⊆ B and B ⊆ C ⇒ A ⊆ C ⇒ (A, C) ∈ R   . .   .   R is transitive

1 Answers · Science & Mathematics · 28/07/2020

7. ### Determine the truth value of ((~ r ) ^ s) --> ( r ^ t) when r , s and t are all True.?

...q  is always true if p is false, no matter the truth-value of q.  .. r .. s .. t . (~ r )^s .. r ^t . ((~ r ) ^ s) --> ( r ^ t...

1 Answers · Science & Mathematics · 06/06/2020

8. ### 2.1.3 Solve for x 2.2 Make Rs the subject of the formula?

...42 (21/4) * 2^(x) = 42 2^x = 42 * 4 / 21 2^x = 2 * 4 2^x = 8 x = 3 V = R / ( R [s] + r ) * V[dc] V / ( R * V[dc]) = 1 / ( R ...

3 Answers · Science & Mathematics · 23/02/2020

9. ### The formula for angular velocity is w = ______. vr v/ r r /v sr?

v = linear velocity in meters per second (m/s) r = radius in meters (m) ω [omega] = angular velocity in radians per second (rad/s) ω = v / r

2 Answers · Science & Mathematics · 18/06/2020

10. ### Find the area of the upper hemisphere of x^2+y^2+z^2=1 above the interior of one loop of r =cos(2theta). ans. pi[sqrt(2)]-1?

...1-x² - y²). What are then the ranges for r & θ? The element of area is √( 1 +  (dz/dx)² + (dz/dy...

2 Answers · Science & Mathematics · 08/07/2020