Answer:
Option B.
Step-by-step explanation:
As we know that
Margin of error = Z * standard error
Here , the only way to decrease the value of margin of error is to decrease either the value of z or value of standard error as both are directly proportional to margin of error.
Z-value can be decreased by using lower confidence intervals. Standard error can be decreased by increasing sample size (as given in option B)
The answer is option B as it is using sample size of 50 instead of 35 thus decreasing standard error and ultimately decreasing margin of error.
Answer:
0.571428571429 grams per cm³
Step-by-step explanation:
density = mass/volume
Let’s calculate the volume V of the pyramid :
V = (1/3)×base×height
= (1÷3)×(5×7)×9
= 105 cm³
Then
The density = mass/volume
= 60÷105
= 0.571428571429
I was not sure if the x in your equation was a multiplication sign or a variable
6/7x
-1 multiplied by 3/7x times -2
And when you multiply two negatives it equals a posible so the -2 and -1 turn into a positive
Okay first you need to convert 0.2 to a percentage which would be 20% then 20% + 20% = 40% then it says he read 50%, 50% of 36 means that you have to multiply 36 two times to get, 72 then you do 72 * 40% = 28.8 = 29 + 72 = 101 pages in all then 101- 40%= 60.6 is how many pages were read on Monday and Tuesday.
Answer:
4
Step-by-step explanation:
→ –36 – ( –40 )
- Whenever there is sign of subtraction before the brackets, signs of the numbers inside the brackets get changed when we removed the brackets.
→ –36 + 40
→ 4
<u>4</u><u> </u><u>is</u><u> </u><u>the</u><u> </u><u>required</u><u> answer</u><u>.</u>
