<h3>
Answer: Choice D. 8:9</h3>
Work Shown:
16 boys: 18 girls
16:18
16/2:18/2
8:9
I divided both parts of the ratio by the GCF 2 in order to reduce from 16:18 to 8:9. For every 8 boys there are 9 girls.
Answer:
Neither options one or two is true
Step-by-step explanation:
When we test a statistical hypothesis, we must specify a level of significance. It is this level of significance that presents the maximum probability at which we are willing to risk committing a type one error.
Therefore, it is independent of any other level of significance used.
Hence, we conclude that neither options one or two is true.
Answer:
Total temperature change = -32.48 degrees
Step-by-step explanation:
Over 11.2 hours, the temperature changed -2.9 degrees each hour.
Total time elapsed = 11.2 hour.
Temperature change per hour = -2.9 degrees
Total temperature change = Total time elapsed x Temperature change per hour
Total temperature change = 11.2 x -2.9 = -32.48 degrees
So temperature is reduced by 32.48 degrees in 11.2 hours.
Total temperature change = -32.48 degrees
Given:
Area of a sector = 
Radius = 5 cm
To find:
The central angle.
Solution:
The area of a sector is:
Where, r is the radius and 
is the central angle in radians.
Putting 
in the above formula, we get
Multiply both sides by 2.
Divide both sides by 25.
Therefore, the central angle in radians is 
.
