A study of the properties of metal plate-connected trusses used for roof support yielded the following observations on axial stiffness index (kips/in.) for plate lengths 4, 6, 8, 10, and 12 in: 4: 309.2 409.5 311.0 326.5 316.8 349.8 309.7
6: 429.1 347.2 361.0 404.5 331.0 348.9 381.7
8: 393.4 366.2 351.0 357.1 409.9 367.3 382.0
10: 344.7 452.9 461.4 433.1 410.6 384.2 362.6
12: 413.4 441.8 419.9 410.7 473.4 441.2 465.8

Required:
Does variation in plate length have any effect on true average axial stiffness? State the relevant hypotheses using analysis of variance.

mental cunning

explanation:

he is often referred to as a man of twists and turns

answer: -1

step-by-step explanation:

u = -(6/7)w

step-by-step explanation:

place all values with 'u' on one side of the equation.

4u + 8w = - 3u + 2w

4u + 3u = 2w - 8w

further simplify the equation by solving the addition and subtraction.

7u = - 6w

make 'u' the independent variable by placing its co-efficient on the right-hand side.

u = - (6/7)w

$3720

step-by-step explanation:

taxable income = $31000

as per the 2018-2019 us tax bracket, the tax rate is 12% for an individual whose taxable income is between $9,526 to $38,700.

so, the tax to be paid by him = 12% of 31000

= 0.12 * 31000     [12% converted to decimal as 0.12]

= $3720