Answer:
around 46
Step-by-step explanation:
328/7=46.8571428571
Answer:
KL = √10
Step-by-step explanation:
The product of KM and LN is twice the area, so is 12. This gives a quadratic in one or the other of those variables:
KM(8 -KM) = 12 . . . . the product of diagonals is twice the area
KM² -8·KM +12 = 0 . . . . rearrange to standard form
(KM -2)(KM -6) = 0 . . . . factor
KM = 2 or 6 . . . . values that make the factors zero
LN = 6 or 2 . . . . corresponding values of LN
The Pythagorean theorem tells you the side length from the diagonals:
KL² = (KM/2)² +(LN/2)² = 1² +3² = 10
KL = √10 . . . . . take the square root
Answer:
The statistic would be given by:
(1)
And replacing we got:
Step-by-step explanation:
Information given
n=421 represent the random sample taken
estimated proportion of adults that would erase all of their personal information online if they could
is the value that we want to test
z would represent the statistic
Hypothesis to test
We want to check if Most adults would erase all of their personal information online if they could, then the system of hypothesis are :
Null hypothesis:
Alternative hypothesis:
The statistic would be given by:
(1)
And replacing we got:
Answer:
49°
Step-by-step explanation:
arccos x = 15/23