stacey graham

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

Questions

The following questions were asked by visitors named stacey graham.

verify the identity sin(4u)=2sin(2u)cos(2u)

verify the identity: tan^2x(1+cot^2x)=1/1-sin^2x Verify the Id: tanx + cotx/ tanx-cotx = (1/sin^2x-cos^2x)

verify the identity: sec(beta)+ tan (beta)= cos(beta)/ 1-sin(beta)

verify the identity: sin(x+y)-sin(x-y)=2cosx siny

find the exact value given that cosA=(1/3) in quad I, sin B=(-1/2) in quad 4, and sin C=(1/4) in quad 2 sin(A-B)?

tan(theta)=(7/24), sin(theta)<0 find cos(2theta)

verify the identity (tanx+cotx) (1) __________ = ______________ (tanx-cotx) (sin^2x-cos^2x)

{tan^2x+cotx divided by tanx-cotx} is equal to {1 divided by sin^2x-cos^2x}

{tan^2x(1+cot^2x)} is equal to{1 divided by 1-sin^2x}

(tanx+cotx)over(tanx-cotx)=(1) over sin^2x-cos^2x)

solve the equation 2 tan^2(theta)sin(theta)-tan^2(theta)=0 interval[0,360)

find the exact value given that cosA=(1/3) in quad I, sin B=(-1/2) in quad 4, and sin C=(1/4) in quad 2 tan(B+C) ? At the end of my equation I had (sqrt45/15) over (1-sqrt15/15) , how do I rationalize or did I make an error in calculation

A stairwell is supported by two circular steel rods at one end. The other end supported above. The two steel rods are subjected to a total load of 12,800lbs. The rods are 24 ft long and E=30*10^6 psi. Select the rod based on the following specs. The rod d...

Find the strain and stress on a 1.5 inch diameter cylinder which is subjected to a load of 7.8 tons and measures 11.92 inches instead of the original 12 inch length. What is the Modulus of Elasticity for the material?

A clip is bolted to column supports a steel beam with and end reaction P =32.5kips. The angle is connected using 2-(7/8)in diameter High strength A325 bolts. The allowable shear capacity of the bolts is 17,000psi. Are the bolts adequate? For this I got 54...

Two airplanes leave a airport at the same time , one going northwest ( bearing 315degrees) at 422 mph and the other going east at 341 mph. How far are the planes after 4 hours ? Please help have no idea of how to solve?

A freighter leaves on a course of 120 degrees and travels 515 miles. The ship then turns and goes due east 200 miles. What is the bearing and distance from the port to the ship? I calculated 142 miles for distance but couldn't get bearing. Any help is app...

finding the equivalent polar equation 2x+3y=6 I got r=6/2cos(theta)-3sin(theta) can anyone check plz

sin(theta)cos(theta)sec(theta)csc(theta) How do I simplify

sec^2x/tanx -(tanx) how to simplify

Answers

The following answers were posted by visitors named stacey graham.

I calculated reqd A got 32.8 psi to get diameter of 6.46 in/in. Am I going right way or did I miss something?

So that's 695,4354 miles and 111,73246 degrees or 695.4324 miles and 111.73246 just making sure seemed like a lot