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3 years ago

So I need to calculate the surface area for each figure. And the base is 6 and Side is 3?

Mathematics

1 answer:

Pie3 years ago

8 0

Area=basexhigh so, Area= 6x3 , so answer will be 18

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The least common denominator of 1/4 and 3/8?

castortr0y [4]

8 so it would be 2/8 plus 3/8

3 0

3 years ago

Read 2 more answers

Bob Nale is the owner of Nale's Texaco GasTown. Bob would like to estimate the mean number of litres (L) of gasoline sold to his

Fudgin [204]

Answer:

The point estimate of the population mean is $\= x = 56$

The 80% confidence level is $50.57 < \mu < 61.43$

There is 80% confidence that the true population mean lies within the confidence interval.

Step-by-step explanation:

From the question we are told that

The sample size is n = 18

The standard deviation is $\sigma = 18 \ L$

The sample mean is $\= x = 56$

Generally the point estimate of the population mean is equivalent to the sample mean whose value is $\= x = 56$

Given that the confidence interval is 80% then the level of significance is mathematically represented as

$\alpha = 100 - 80$

$\alpha = 20 \%$

$\alpha = 0.20$

Next we obtain the critical value of $\frac{\alpha }{2}$ from the normal distribution table

The value is $Z_{\frac{ \alpha }{2} } = 1.28$

Generally the margin of error is mathematically evaluated as

$E = Z_{\frac{\alpha }{2} } * \frac{\sigma }{\sqrt{n} }$

=> $E = 1.28 * \frac{18 }{\sqrt{18} }$

=> $E = 5.43$

Generally the 80% confidence interval is mathematically represented as

$\= x - E < \mu < \= x + E$

=> $56 - 5.43 < \mu < 56 + 5.43$

=> $50.57 < \mu < 61.43$

The interpretation is that there is 80% confidence that the true population mean lies within the limit

3 0

3 years ago

How many terms are in the algebraic expression 2y+3x-5x^2-g? 2 3 4 5

elena-14-01-66 [18.8K]

2y+3x-5x^2-g contains 4 terms that cannot be further simplified without know the values for the variables y, x, and g. Although 3x and -5x^2 contain the same variable x, since they have have different exponents, we can not directly add them together without knowing the value of x.

The answer is 4.

3 0

3 years ago

Zoe went on a shopping trip to Fairfax. She purchased a barbecue grill originally priced at $600 but discounted 50%. If sales ta

sergey [27]

Answer:

The total cost is $345

Step-by-step explanation:

Zoe purchased a barbecue grill originally priced at $600

Discount % = 50%

So, cost after discount = $600-50\%(600)$

Cost after discount =300

Sales tax in Fairfax is 15%

So, cost including tax = 300+0.15(300)

Cost including tax = 345

Hence The total cost is $345

6 0

3 years ago

Find the measure of the largest angle in the diagram below. (Type the number only).

harkovskaia [24]

Answer: 112

2x+3x+10=180

5x=170

x=34

3x+10=112

6 0

3 years ago