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Maru [420]
3 years ago
12

Please need help with this

Mathematics
2 answers:
german3 years ago
6 0
The right answer is obtuse!
yanalaym [24]3 years ago
3 0
Obtuse is the answer
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Help ASAP!!!! Thanks
Tema [17]

Answer:

No DB is not a perpendicular bisector of AC

Step-by-step explanation:

This is because as AC is a straight line it's angle degree is 180 which when bisected by DB becomes,

180 ÷ 2 = 90

On both the angles i.e <BDC = <NDA = 90°

To make it a perpendicular bisector but

<BDC is not equal to <NDA is not equal to 90°.

Hence, DB is not a perpendicular bisector of line AC.

8 0
2 years ago
Relationships in Figures
chubhunter [2.5K]

Answer:

A. 8.737

Step-by-step explanation:

I calculated it logically

4 0
2 years ago
486 is what percent of 900
gladu [14]
486/900 = .54 = 54%. .......
3 0
2 years ago
Follow nikespear37 tik tok
hjlf

Answer:

no >:)

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
The difference of two sample means is 22, and the standard deviation of the difference of the sample means is 10. The difference
taurus [48]

Answer:

The 95% confidence interval for the difference of the two populations means is ( 2.4, 41.6)

Step-by-step explanation:

Confidence intervals are usually constructed using the formula;

point estimate ± margin of error

In this question we are required to construct a 95% confidence interval for the difference of two populations means. The point estimate for the difference of two population means is the difference of their sample means which in this case is 22.

Assuming normality conditions are met, since we have no information on the sample sizes, the margin of error will be calculated as;

margin of error = z-score for 95% confidence * standard deviation of the difference of the sample means

The z-score associated with a 95% confidence interval is 1.96

The standard deviation of the difference of the sample means is given as 10

The 95% confidence interval for the difference of the two populations means is thus;

22 ± 1.96(10) = 22 ± 19.6 = ( 2.4, 41.6)

8 0
3 years ago
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