B-0.32 is equivalent to 8/25
In order to get the results shown,
the calculations must be done incorrectly. Ordinarily, instructions to round to a particular precision should be applied only to the final result(s). Here, you are expected to round every intermediate result. (This is generally considered to be WRONG!)

The numbers in the column

are simply the squares of the numbers in the column to its left. Round the squares to tenths. Their sum should be the value indicated in the bottom row.
The standard deviation is the square root of the variance,
√(99667.2) ≈
315.7
9514 1404 393
Answer:
$2650
Step-by-step explanation:
If Jack's earnings are represented by e, then we have ...
10% × e = $256
Multiplying by 10 gives ...
100% × e = $2560
Jack earned $2650 in the summer.
_____
100% = 1
Answer:
3xyz
Step-by-step explanation:
The required sum = 7xyz+(−5xyz)+9xyz+(−8xyz)
=7xyz–5xyz+9xyz–8xyz
=(7–5+9–8)xyz
=(16–13)xyz
=3xyz
Since it is a parallelogram cente at point T,
then the measure of PT is equal to the measure of TR. And the measure of QT is
equal to the measure of TS.
PT = TR
a + 4 = 2a
4 = 2a -a
a = 4
PT = TR = 8 units
QT = TS
b = 2b -3
3 = 2b – b
b = 3
<span>QT = TS = 3 units</span>