The Circumference would be 1256.637 and the diameter would be 400
Answer:
D. A value of 0.9 is more than 2 standard deviations from the mean.
Step-by-step explanation:
A is wrong, because the standard deviation is +/-0.15 (the measure up or down from the mean)
B is wrong, because the mean is exactly 0.5
C is wrong, because 1 standard deviation up from the mean is 0.65, and 0.7 is outside of that.
Answer:
The original nimber is 67.
Step-by-step explanation:
Let the two digits be x and y.
According to the question.
The sum of two digits of a two digit number is
x + y = 13
or, x = 13 - y
And, a two digit number can be written as
x × 10 + y
when the digits are reversed, the number can be written as
y × 10 + x
the original number increases by 9. i.e.
y x 10 + x = x × 10 + y + 9
Replacing value of x by 13 - y,
y × 10 + 13 - y = 10(13 - y) + y + 9
10y + 13 - y = 130 - 10y + y + 9
9y + 13 = 139 - 9y
18y = 139 - 13
18y = 126
y = 126/18
y = 7
So, x = 13 - y
= 13 - 7
= 6
The original number is x × 10 + y = 6 x 10 + 7 = 67.
82%18.8 it should be over 100% because the value of 82 is larger than 18.8
Answer:
A. She had $170.47 more in debits than in credits.
Step-by-step explanation:
In a bank account, when money is deposited, the bank credits the bank accounts while a withdrawal is debited to the account hence, if the monthly bank statement for Sierra's checking account was $402.22, and the ending balance was $231.75, the change in the account is
= $402.22 - $231.75
= $170.47
Since there was a drop in the balance comparing the beginning and ending balances, it means there were more withdrawals than deposits (in amount).
