Answer:
Step-by-step explanation:
Answer:
distributive
Step-by-step explanation:
Answer:
134.375 or 134 3/8 square feet is the area of the rug
Step-by-step explanation:
In this question, we learnt someone bought rug measuring some lengths per sides were asked to help calculate the area of the rug.
Firstly, we can see that the lengths of the two sides differ? We can thus conclude that the rug is rectangular in shape.
Hence, to calculate the area of this rug, what we do is to calculate the area of the rectangle formed by the rug.
Mathematically, the area of the rug would be = l * b
According to the question, we can identify that l = 10.75 feet(3/4 = 0.75) while the b = 12.5 feet(1/2 = 0.5 feet)
Hence the area of the rug A is thus; 10.75 * 12.5 = 134.375 sq. Feet ( 0.375 = 3/8 so we can say 134 3/8 feet)
Answer:
Step-by-step explanation:
The average weight of a package of rolled oats is supposed to be at least 18 ounces
Null hypothesis: u >= 18
Alternative: u < 18
Using the t-test formula, we have
t = x-u/ (sd/√n)
Where x is 17.78, u = 18, sd = 0.41 and n = 18
t = 17.78-18 / (0.41/√18)
t = -0.22 / (0.41/4.2426)
t = -0.22/ 0.0966
t = -2.277
Since, this is a left tailed test, at a significance level of 0.05, the p value is 0.01139. Since the p value is less than 0.05, we will reject the null hypothesis and conclusion that the true mean smaller than the actual specification.
Answer:
b
Step-by-step explanation:
