Answer:
What is the question you just put information but not any question.
Step-by-step explanation:
Answer:
A. 13 1/5
Step-by-step explanation:
=10 3/5 + 2 3/5
=53/5 + 13/5
=66/5
=13 1/5
Answer:
Sara expect the better grade for Math class.
Step-by-step explanation:
Consider the provided information.
On the Math exam, the mean was µ = 30 with s = 5, and Sarah had a score of X = 45.
Z score for Math: 



On the Spanish exam, the mean was µ = 60 with s = 8 and Sarah had a score of X = 68.
Z score for Spanish: 



On the English exam, the mean was µ = 70 with s = 8 and Sarah had a score of X = 70.
Z score for English: 


We can observe that Z score of Math is greater than Spanish and English.
Which means that Sarah did the best in her Math exam.
Hence, Sara expect the better grade for Math class.
Answer:
5.2
Step-by-step explanation:
1.3, 1.9, 4.9, 4.9, 5.5, 8.4, 8.7, 9.4
the median is the middle number, so it would be in between 4.9 and 5.5
the answer is 5.2
Answer:
1.641× 10^-3 pounds/ cubic inch
Step-by-step explanation:
Density= mass / volume
Mass of the material= 9 kilograms
Volume= 7 cubic feet
Density= 9/7= 1.286 kg/ ft^3
Density= 1.286 kg/ ft^3
To Convert to pounds per inch
1 kg/ ft^3 = 0.00128 pound / cubic inch
1.286 kg/ ft^3 = X pounds/ cubic inch
X=( 1.286 × 0.00128)
= 0.0016407087 pounds/ cubic inch
= 1.641× 10^-3 pounds/ cubic inch
Hence,this density in pounds per inch is 1.641× 10^-3 pounds/ cubic inch