Answer:
4.10
Step-by-step explanation:
1.08 * 3.8 = 4.104
but money is 2dp so...
4.10
Answer:
-10
Step-by-step explanation:
3j-4j=10
-j=10
j=-10
Hope it helps!
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Answer:
8963.46
Step-by-step explanation:
84*66 for the rectangle and since there is two semi circles you could just calculate it as one so it would be 84*66+33*33*3.14 because formula for area of circle is A= pi*raduis with exponant of 2
To find the tax you first move the decimal place 2 places to the left giving you the exact percent in decimal form. .075 is the correct decimal for this percent. You then multiply that percent by the cost of the product. (125) After multiplying you get the product $9.375. Then you round to the nearest tens place giving you $9.38
Answer:
Step-by-step explanation:
given that a certain test preparation course is designed to help students improve their scores on the LSAT exam. A mock exam is given at the beginning and end of the course to determine the effectiveness of the course. The following measurements are the net change in 6 students' scores on the exam after completing the course:
We find
Mean 13.66666667 = 13.7
Standard Error 1.801234145
Margin of error for 90% = 1.645*std error = 2.963
Confidence interval = Mean ±Margin of error
=(10.704, 16.630)
Sample mean = 13.7