Answer:
1
Step-by-step explanation:
Sin(x)=\sqrt(2)/2 is when x=\pi/4 so cot(\pi/4)=1
For this problem, you have to add $10.39 and $20.10 together. When you add those two numbers, you get $30.49. After this, you subtract $30.49 from $77, which would yield $46.51. The answer is C. I know it's this value because the problem says that Elena spends her remaining money on the sweater.
Madison would save $264 if she chose the personal loan
Answer:
$138
Step-by-step explanation:
When marking up a price, all you have to do is consider the the original value, and add that to the percentage of that value.
In this case, we know that the original price is $120.
15% of 120 is 18, so we simply add 18 to 120.
18 + 120 = 138
The watch will now cost $138.
Answer:
400
Step-by-step explanation:
6/8 = 0.75 or 75% expected to respond favorably.
Margin of error 2.5%:
Lower bound: 0.75 - .025 = 0.725
Upper bound: 0.75 + .025 = 0.775
Range:
Lower bound: 8000 * 0.725 = 5800
Upper bound: 8000 * 0.775 = 6200
6200 - 5800 = 400