First, we calculate for the variance by dividing the given sum of the squared deviations by the number of data.
variance = (316) / 9 = 316/9
Then, get the square root of the answer to calculate for the standard deviation.
sd = sqrt (316/9) = 5.93
Thus, the standard deviation is approximately 5.93.
Answer:
it will take 20 minutes for all the pretzels to be gone
Step-by-step explanation:
you can multiply 25 times 20 you get 500
hope this helps!
Answer:
m<AOB = 50°
Step-by-step explanation:
<ACB = 25° is an inscribed angle of the circle.
<AOB is a central angle of the circle.
Thus, based on the inscribed angle theorem which states that an inscribed angle is ½ the measure of the central angle, therefore:
m<ACB = ½(m<AOB)
Substitute
25° = ½(m<AOB)
Multiply both sides by 2
2*25 = m<AOB
m<AOB = 50°
Answer:
Choose 4-5 words from the extract below that tell the reader something about the character of Squealer. (HINT: Remember he represents Propaganda and is very manipulative!)
((((Afterwards Squealer made a round of the farm and set the animals' minds at rest. He assured them that the resolution against engaging in trade and using money had never been passed, or even suggested. It was pure imagination, probably traceable in the beginning to lies circulated by Snowball. A few animals still felt faintly doubtful, but Squealer asked them shrewdly, 'Are you certain that this is not something that you have dreamed, comrades? Have you any record of such a resolution? Is it written down anywhere?' And since it was certainly true that nothing of the kind existed in writing, the animals were satisfied that they had been mistaken.))))
Step-by-step explanation:
1- -7x+2=2x+2-9x
2- -7x-2x+9x= -2+2 collect the like terms and put them on separate sides (always put x on the left hand side and the others on the right hand side). and always convert + to - and reversed (for example: I put the 2x from the right to the left and changed it to -2x)
3- -9x+9x= -2+2 now work out the sum
4- 0x=0 so x=0