I find these easier to calculate when everything is converted to a decimal
d=rt
d=(9.5mph x 1.75)
d = 16.625 ( approx. 16.6 miles)
One way to solve this is to revert to integers.
Do this by moving the decimal in 1.3 to the right 6 places (indicated by the positive power value) and then 6.8 move the decimal to the right 5 places (same reason)
Now you have 1,300,000 & 680000. Subtract to get 620,000.
Now convert your product to scientific notation again by moving your decimal to the left until you are left with 6.2 x ? The question mark will be 10 to the number of places you moved the decimal. 10^5
We have 6.2 x 10^5.
It is import to note that when the decimal must be moved to the right for values less than one, the power will be negative.
we know that
In parallelogram, the sum of consecutive angles are 180
so, consecutive angles are supplementary
And opposite angles are equal
so, we will check verify each options
option-A:
Since, consecutive angles are supplementary
so, this is FALSE
option-B:
Since, only opposite angles are equal or congruent
so, this is FALSE
option-C:
Since, consecutive angles are supplementary
so, this is TRUE
option-D:
Since, consecutive angles are supplementary
so, this is FALSE