After moving into a new house, a couple wants to have a concrete patio poured to support a hot tub, because... well, because it's a hot tub. The plans call for a 6 ft by 17 ft slab of concrete 8 inches thick. which has a total volume of 2.52 cubic yards. The contractor estimates the amount needed at 3 cubic yards.

Find the percent error in the estimate compared to the actual amount of concrete needed.
Round to the nearest tenth of a percent.
a) The percent error in the estimate compared to the actual amount of concrete needed is __%

answer: 0,6

step-by-step explanation:

this would make it the y intercept.

1,407.5 hours

step-by-step explanation:

we first convert all the time to hours and then sum them up.

there are 24 hours in 1 day, in 58 days, there are 24 x 58 = 1,392 hours.

there are 60 minutes in 1 hour, thus, 30 minutes will be equivalent to 30 / 60 = 0.5 hours.

therefore, the number of hours it will take mercury to complete a full rotation is 1,392 + 15 + 0.5 = 1,407.5 hours

answer: 75°

step-by-step explanation:

∠esk is the supplement of ∠edk, so is 100°. ∠esd = 1/2·arc ed, so is 25°.

since ∠esk = ∠esd + ∠dsk

you have 100° = 25° + ∠dsk . .

fill in known values 75° = ∠dsk . . . . .

subtract 25°

step-by-step explanation: