Diana's spends 0. 8 hours per day at the pool if she goes to the pool for two days one week how many total hours does diana spend at the at the pool that week

The number of hours spend by Diana at the pool that week is 1.6

Step-by-step explanation:

Given as :

The Time spends by Diana at the pool = 0.8 hours per day

The number of days spend by Diana in one week = 2 days

So, The number of hours spend by Diana in one week = number of days × number of hours spend per day .

or, The number of hours spend by Diana in one week  = 2 days × 0.8 hours

                                                                                           = 1.6 hours

Hence The number of hours spend by Diana at the pool that week is 1.6 hours Answer

3. parallelogram

step-by-step explanation:

we turn each of our sides into direction vectors

ab=b-a=(3 - 7, 1 - 0) = (-4, 1)

bc=c-b=(1,6)

cd=d-c=(4,-1)

da=a-d=(-1,-6)

we see how the opposite sides have negated direction vectors; this is characteristic of a parallelogram.   we have congruent sides ab=cd and bc=da with unequal lengths because 1^2+6^2 is different from (-4)^2+1^2.   so it's not a square or a rhombus.  

we check the dot product of direction vectors of adjacent sides.   we have

ab dot bc = -4(1) + 1(6) = 2

that's not zero so the sides are not perpendicular.   we've ruled out rectangle.

the direction vectors indicate two pairs of congruent parallel sides, so we choose parallelogram over trapezoid.

answer: 1722

step-by-step explanation:

given: the mass of saturn=

the mass of mercury=

the number of times the mass of saturn is greater than the mass of mercury

hence, the mass of saturn is 1722 times greater than the mass of mercury.