Answer:
-1
Step-by-step explanation:
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The model can be used as follows;
The model shows a total of 1 whole and 6
tenths. After regrouping 1 tenth into 10
hundredths, there is 1 whole, 5 tenths, and
10 hundredths. After crossing out 3 tenths
and 2 hundredths, there is 1 whole, 2 tenths, and 8 hundredths.
<h3>Place value</h3>
According to the question;
- After regrouping 1 tenth into 10 hundredths; we have; 1 whole, 5 tenths, and 10 hundredths
- After crossing out 3 tenths
- and 2 hundredths,; what we have left is; 1 whole, 2 tenths, and 8 hundredths.
Ultimately, the result is; 1.28
Read more on place value;
brainly.com/question/25137147
Answer:
The student's z-score will not change
Explanation:
Z-scores are used to compare results of an individual or entity to the average population's scores.
Since the adjustment of additional points is added to each class member's score, the adjustment will shift the entire distribution of scores. However, there will not be a change in the relative position of the student's score in the class. As a result, the student's z-score will not change.
Answer:
50° and 130°
Step-by-step explanation:
let one angle be x then the other angle is x - 80
Supplementary angles sum to 180°, thus
x + x - 80 = 180, that is
2x - 80 = 180 ( add 80 to both sides )
2x = 260 ( divide both sides by 2 )
x = 130
The angles are 130° and 130 - 80 = 50°