Blue tiles= 9/20
Letter b= 10/20- 1/2
Either blue or b= 19/20
Answer:
Each board is (4/25) meters long = 0.16 meters long
Step-by-step explanation:
The board is 4/5 meters long, and he needs to cut 5 equal pieces, so we need to divide 4/5 of a meter in 5 parts.
This mathematically becomes: 4/5 divided by 5 which by the definition of division of rational numbers, is the same as :
4/5 times the reciprocal of 5 = (4/5) * (1/5) = (4/25) = 0.16 meters each board
128 & 9
Factors of 1: 128, 9
Factors of 2: no
Factors of 3: no
Factors of 4: no
Factors of 5: no
Factors of 6: no
Factors of 7: no
Factors of 8: no
Factors of 9: no
GCF is 1
#1) D, 95%
#2) B, 34%
Explanation
#1) The mean is 6 and the standard deviation is 0.2. 5.6 is 0.4 away from the mean; 0.4 is 2 standard deviations. 6.4 is 0.4 away from the mean; again, 0.4 is 2 standard deviations.
The empirical rule states that 95% of data will be within 2 standard deviations of the mean, so 95% is our answer.
#2) 6.2 is only 1 standard deviation away from the mean. However, this is only half of the percentage from the empirical rule, since we are only considering numbers larger than the mean. The empirical rule states that 68% of data will fall within 1 standard deviation from the mean, so we have
68/2 = 34%.
Answer:
<u> </u><u>1</u><u>9</u><u> </u>
Step-by-step explanation:
=> 12 - (-7)
=> 12 + 7
=<u> </u><u>1</u><u>9</u><u> </u>