I think its irrational bc if you put it as the squareroot of 329, it results in neverending decimals.
18^2=324+5=329
11 = -3k - 22 - 8k....combine like terms on the right side
11 = -11k - 22 ...add 22 to both sides
11 + 22 = -11k
33 = -11k....divide both sides by -11
-33/11 = k
-3 = k <===
Answer:
B. 300
Step-by-step explanation:
Final figure volume = big cuboid volume - small cuboid volume
Volume of a cuboid = height x width x length
Final figure = (6 x 6 x 15) - (4 x 4 x 15)
Final figure = 540 - 240
Final figure = 300mm^2
The tensile strength of spider silk is about 1150 MPa, which is 1.15 x 10^9 N/m².
<span>So given that the diameter of the spider silk is 0.15 mm or 1.5 x 10^-4 m. The cross sectional area is approximately: </span>
<span>A = πr² = (3.14)(1.5 x 10^-4 / 2)² = 1.767 x 10^-8 m² </span>
<span>So this means that the amount of force we can apply before the the silk thread is broken is: </span>
<span>F = PA = (1.15 x 10^9)(1.767 x 10^-8) = 20.32 N </span>
<span>F = mg, so m = F/g = (20.32)/(9.81) = 2.07 kg!!! </span>
2L + 2W = 62
2(20) + 2W=62
40+ 2W=62
62-40=22
2W=22
22 divided by 2 is 11
W= 11
