Answer:
- 3/4 - 1/4 = 1/2
- 5/8 - 1/8 = 1/2
Step-by-step explanation:
You can pick just about any fraction with an odd numerator and find another at distance 1/2 from it.
For example, 5/7 - 1/2 = 10/14 - 7/14 = 3/14. So your subtraction problem can be ...
5/7 - 3/14 = 1/2
Choosing a denominator divisible by 4 can make both parts of the problem use the same denominator.
3/4 - 2/4 = 1/4, so the corresponding subtraction problem is 3/4 - 1/4 = 1/2.
5/8 - 4/8 = 1/8, so the subtraction problem is 5/8 -1/8 = 1/2.
diagonal = sqrt(a^2 +b^2)
20 = sqrt(12^2 +b^2)
20= sqrt(144+b^2)
20^2 = 144 + b^2
400 = 144 + b^2
256 = b^2
b = sqrt(256) = 16
it is 16 inches wide
Answer:
8xy-5y
Step-by-step explanation:
Answer:
<h2>Step-by-step Explanation:</h2>
<h3>(a) sinA= 7/18 </h3><h3>A= sin ^-1( 7/18 ) = 23 </h3><h3>(b) A=99°</h3><h3>(c) A = 53°</h3><h3>(d) A= 36°</h3>
<h2>HOPE IT HELPS!!!!</h2>
Answer:
94
Step-by-step explanation:
Margin of error = E = $ 120
Confidence Level = 95%
The z-score for 95% confidence level from the z-table = z = 1.96
Population standard deviation = σ = $593
Sample size = n = ?
The formula to calculate the margin of error is:
Re-arranging the equation, we get:
Using the given values in above equation, we get:
Rounding of to next higher integer, we get n = 94
Thus, we need a sample size of 94 to estimate an unknown population mean μ
