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PolarNik [594]
3 years ago
11

Let r and s be relations with no indices, and assume that the relations are not sorted. Assuming infinite memory, what is the lo

west-cost way (in terms of I/O operations) to compute r?
Business
1 answer:
OlgaM077 [116]3 years ago
5 0

Answer:

Explanation:

I can save the whole smaller relation in memory, read the larger relation block by block and carryout nested loop join using the larger one as the outer relation. The number of I/O operations is equal to Br + Bs

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Royal Gorge Company uses the gross profit method to estimate ending inventory and cost of goods sold when preparing monthly fina
34kurt

Answer:

The estimated inventory at the end of February is $73400 as shown below

Explanation:

Beginning Inventory $57,800

Plus: Net purchases $120000

Freight-in                     $2,700

Cost of Goods Available for Sale $180500

less: Cost of Goods Sold

Net Sales$180000

Less Estimated Gross Profit $81000

Estimated Cost of Goods Sold $99000

Estimated Inventory before Theft 81500

Less: Stolen Inventory 8,100

Estimated Ending Inventory 73400

Gross profit $180000*45%=$81000

8 0
3 years ago
a new hockey arena at a cost of $2,500,000. It received a downpayment of $500,000 from local businesses to support the project a
mylen [45]

Answer:

a. Prepare the journal entry to record the issuance of the bonds on January 1, 2018

we must first determine the market price of the bonds:

PV of face value = $2,000,000 / (1 + 5%)²⁰ = $753,778.97 ≈ $753,779

PV of coupon payments = $110,000 x 12.462 (PV annuity factor, 5%, 20 periods) = $1,370,820

market value of the bonds = $753,779 + $1,370,820 = $2,124,599

January 1, 2018, bonds are issued at a premium

Dr Cash 2,124,599

    Cr Bonds payable 2,000,000

    Cr Premium on bonds payable 124,599

b. Prepare a bond amortization schedule up to and including January 1, 2022

since we are not told which amortization method to use, I will use the straight line method.

Date           Interest        Cash              Premium          Carrying

                  expense      paid               amortization     value

7/2018        $103,770     $110,000       $6,230             $2,118,369

1/2019         $103,770     $110,000       $6,230             $2,112,139

7/2019        $103,770     $110,000       $6,230             $2,105,909  

1/2020        $103,770     $110,000       $6,230             $2,099,679    

7/2020       $103,770     $110,000       $6,230             $2,093,449

1/2021         $103,770     $110,000       $6,230             $2,087,219  

7/2021        $103,770     $110,000       $6,230             $2,080,989                              

1/2022        $103,770     $110,000       $6,230             $2,074,759                                

c. Prepare the journal entries to record the interest payments on January 1, 2020 and January 1, 2021.

bond premium amortization per coupon = 124,599 / 20 = $6,229.95 ≈ $6,230

January 1, 2020, coupon payment

Dr Interest expense 103,770

Dr Premium on bonds payable 6,230

    Cr Cash 110,000

January 1, 2021, coupon payment

Dr Interest expense 103,770

Dr Premium on bonds payable 6,230

    Cr Cash 110,000

d. Prepare the journal entry to record the bond called on January 2021 at 106

Dr Bonds payable 2,000,000

Dr Premium on bonds payable 87,219

Dr Loss on retirement of debt 32,781

    Cr Cash 2,120,000

5 0
3 years ago
Namita is voting in a state election. She selects the candidate she wants to be state senator, a position that involves drafting
Mashcka [7]

Answer:

Representative democracy.

Explanation:

Representative democracy refers to a system where the people govern through the election of parties or representatives with decision-making rights. Representative democracy can also be seen as a collective term for a number of democratic models. Common to these, however, is that the core consists of regularly recurring elections between competing representatives. People's sovereignty is achieved by the citizens influencing the government by voting in these elections. It is by far the most widespread method of exercising authoritative and legitimate control, demanding responsibility and developing debate in modern democracies.

5 0
2 years ago
If scientists discover that steamed milk, which is used to make lattés, prevents heart attacks, what would happen to the equilib
Tatiana [17]

Answer:

a. Both the equilibrium price and quantity would increase.

Explanation:

The point on a demand-supply graph where the demand curve and the supply curve intersects is known as the point of equilibrium.

If scientists discover that steamed milk, which is used to make lattés, prevents heart attacks, what would happen to the equilibrium price and quantity of lattés is that, both the equilibrium price and quantity would increase.

This simply means that, whatever makes the factors of production such as, land, labor, entrepreneurship, capital, or efficiency to either go up or down would certainly result in fluctuations in the economy of a particular country.

Aggregate supply (AS) refers to the total quantity of output (goods and services) that firms are willing to produce and sell at a given price in an economy at a particular period of time.

Aggregate demand (AD) can be defined as the total quantity of output (final goods and services) that is demanded by consumers at all possible price levels in an economy at a particular time.

On a standard Aggregate demand (AD)-Aggregate supply (AS) curve, the y axis denotes the Price (P) of goods and services while the x axis typically denotes the Output (Q) of final goods and services.

In the short-run, a rightward shift in the aggregate supply (AS) curve causes output to increase and result in a price fall (lower price) while a rightward shift in the aggregate demand (AD) curve also cause output to increase and rise in prices.

The short-run nominal fluctuations basically cause a change in the level of production. In the short-run, as a result of a shift in the aggregate supply; an increase in money consequently to result in increase the level of production (output).

Hence, more goods are produced as a result of the increased output (supply) and more goods would be purchased as a result of their lower prices.

5 0
2 years ago
How did economic prosperity during the 1920s affect consumers?
Blizzard [7]

Answer:

After the war, Americans were ready to buy and wanted consumer goods like cars and appliances. Americans became accustomed to homes with electric lighting, phones, cars, vacations, and entertainment.

The lifestyles of Americans were significantly effected by the availability of labor saving products, luxury items and the emergence of mass advertising campaigns and consumerism.

Explanation:

3 0
3 years ago
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