Solve the equation using square roots: 2x²-17 = 15
1 answer:
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To find how much was spent on fresh flowers, we just multiply 9% to the monthly budget, which is $18,000.
To multiply a percent to a number, we must first turn the percent into a decimal. Just divide the percent by 100 to get the decimal form. 9% is 0.09.
$1620 was spent on fresh flowers (that's quite a lot of money!)
Answer: Minimum sample size = 110
Step-by-step explanation:
Formula to find minimum sample size :
, where z = critical z-value for confidence level, s= sample standard deviation , E = margin of error
Given: E= 4 , s= 18
Critical z-value for 98% confidence = 2.327
So,
Minimum sample size = 110