Select the correct answer Lucy started the proof of the law of cosines using triangle WXY as shown
w
w
Z
Given XZIWY AWXZ and AYXZ are right triangles
Step 1: Cos(W) = W2; ycos(W) = w z
Step 2: sin(W) = XE; XZsin(W)=y
Step 3: ZY = =-ycos(W)
step 4: W2 = (x-ycos(W))2 + x 22
Which step contains the first error in calculation?

What is the lcm of 16 and 40 ? 24 and 40 ?

Aculture started with 4,000 bacteria. after 5 hours, it grew to 5,200 bacteria. predict how many bacteria will be present after 19 hours. round your answer to the nearest whole number.

Problem situation: caren is making rice and beans. she can spend no more than $10 on ingredients. she buys one bag of rice for $4.99. beans cost $0.74 per pound. how many pounds of beans, x, can she buy? inequality that represents this situation: 10≥4.99+0.74x drag each number to show if it is a solution to both the inequality and the problem situation, to the inequality only, or if it is not a solution.