Answer:
240, 1800, 2040
Step-by-step explanation:
First find the surface area of the shape - base = 3 x 15 x 2 + 40 x 15 + 40 x 3 x 2 = 930 m ^2
Now find the area of base = 40 x 15 = 600
Now, the cost of painting = 10 pounds for 25 m^2. SO here cost = 600 / 25 x 10 = 24 x 10 = 240 pounds.
Now cost of tiles = 600 x 3 = 1800
Total cost = 1800 +240 = 2040
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Answer:</h2>
Front-end estimation is a particular way of rounding numbers to estimate sums and differences.
To use front- end estimation, add or subtract only the numbers in the greatest place value. Then add the decimals rounded to the nearest tenth.
Step-by-step explanation:
In front end estimation we are going to replace the original number with a number that is close by but only has one non zero digit. Examples: {20, 300, -50, 1,000, 80,000}. For example take the number 32, the choices to replace it with are 30 or 40 (they both have only one non-zero digit).
<h2>
Answer with explanation:</h2>
Let p represents the population proportion.
From the given information, we have
, since alternative hypothesis is right tailed then the test is right tailed test.
Given : In a sample of 416 households that owned one or more vacation homes, 46 were minorities.
i.e. n= 416
Sample proportion :
Test statistic :
i.e.
P-value for right tailed test :
Since the p-value is less than the significance level (0.01), so we reject the null hypothesis.
Thus , we conclude that we have enough evidence to support the claim that that the percentage of vacation-home owners who are minorities is larger than 6 percent.
Yes because it's a random sample and it doesn't target any specific group