What is 121/25 in decimal form?
To write 121/25 as a decimal, you have to divide the numerator by the denominator of the fraction.
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We divide now 121 by 25 what we write down as 121/25 and we get 4.84 </span>
<span>And finally we have: </span>
121/25 as a decimal<span> equals </span><span>4.84</span>
The correct option is (a) i.e. cylinder.
This is because:
Volume of a Rectangular Prism = (Area of base * Height)
= 50 *5 = 250 cm^3
And volume of cylinder = πr^2h = 50*5 = 250cm^3
Thus, the cylinder has the same volume as the rectangular prism
Answer:
see explanation
Step-by-step explanation:
For the ellipse
+ = 1
Then the vertices are (a, 0), (- a, 0) and (0, b), (0, - b)
Given
+ = 1
Then
a² = 4 ⇒ a = 2 and b² = 100 ⇒ b = 10
Hence the vertices are
(2, 0), (- 2, 0) and (0, 10), (0, - 10)
Answer:
#15 is .6 as the slope
Step-by-step explanation:
The phrasing "nine times out of ten" means 9/10 = 0.90 = 90% is the confidence level. We're confident 90% of the time that the confidence interval captures the population parameter we're after (in this case mu = population mean)
The portion "have an average score within 5% of 75%" means that 75% = 0.75 is the center of the confidence interval, and it goes as low as 0.75 - 0.05 = 0.70 and as high as 0.75 + 0.05 = 0.80
This confidence interval is from 70% to 80%, meaning that nine times out of ten, we're confident that the average score is between 70% and 80%
We write the confidence interval as (0.70, 0.80). It's common to use the notation (L, U) to indicate the lower (L) and upper (U) boundaries. You might see the notation in the form L < mu < U. If so, then it would be 0.70 < mu < 0.80; either way they mean the same thing.
The margin of error is 0.05 as its the 5% radius of the interval. It tells us how far the most distant score is from the center (75%)
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In summary, we have these answers
- confidence level = 90%
- margin of error = 5% = 0.05
- confidence interval = (0.70, 0.80)
- interpretation = We're 90% confident that the average exam score is between 0.70 and 0.80