Anewspaper reports the following changes in the temperature of a city over 4 days: 2.34 degrees celsius, negative 2 over 7 (2/7)degrees celsius, −0.45 degrees celsius, 3 over 8(3/8) degrees celsius write an expression to    show the average daily change in the temperature of the city. write the steps to solve the expression. round your answer to the nearest hundredth. p. s 2/7 and 3/8 are fractions

 Average daily change is 0.494 degrees.

Step-by-step explanation:

Since we have given that

2.34 degrees

degrees

-0.45 degrees

degrees

We need to find the average daily change in the temperature of the city.

Average daily change would be

Hence, Average daily change is 0.494 degrees.

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.