Recent activity by Roy Longbottom

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Suppose relation R(A,B) has the tuples: A B 1 2 3 4 5 6 and the relation S(B,C,D) has tuples: B C D 2 4 6 4 6 8 4 7 9 Compute the theta-join of R and S with the condition R.A < S.C ANDR.B < SD. Then, identify from the list below one of the tuples in R 1×R·A < S.C AND R.Ba) (3,4,4,6,8) b) (3,4,5,7,9) c) (1,2,4,4,6) d) (1,2,2,6,8)

answered Dec 20, 2024

1 answer 54.2k views

At a regency dinner party, what did "turning the table" mean?.

answered Dec 15, 2024

1 answer 211k views

Who negotiated with Germany during World War I? Woodrow Wilson Arthur Zimmerman Pancho Villa

answered Sep 12, 2024

1 answer 90.1k views

A mirage is caused by hot air near the ground. How does it affect light rays? A. Reflecting light rays upward. B. Refracting light rays upward. C. Reflecting light rays downward. D. Refracting light rays

answered Aug 25, 2024

1 answer 98.3k views

A pair of point charges, q = +8.50 μC and q′= -5.50 μC , are moving as shown in the figure (Figure 1) with speeds v= 9.50×104 m/sm/s and v′= 7.00×104 m/sm/s . The charges are at the locations

asked Jul 12, 2024

1 answer 232k views

What is the value of k? 2k+9=7−3k Responses k=−2 k equals negative 2 k=−0.4 k equals negative 0.4 k = 2 k, = 2 k = 3.2

answered Jul 1, 2024

1 answer 92.0k views

The distribution of weights of pumpkins from a harvest is approximately normal with a mean of 8.3 pounds and a standard deviation of 1.68 pounds. Find the value of the interquartile range (IQR) for the

answered Jun 13, 2024

1 answer 15.0k views

(100 POINTS!) (URGENT!!!) The table above gives values of a twice-differentiable function and its first derivative for selected values of . Let be the function defined by . (a) What is the value of ? ease

answered Jun 12, 2024

1 answer 51.6k views

What is Criminal mistreatment in the second degree (RCW 9A.42.030)?

asked Jun 7, 2024

1 answer 194k views

The number of degrees of freedom for a test of independence is equal to the sample size minus one. a) True b) False

asked May 27, 2024

1 answer 118k views

The reactor initially contained 1 mole of ethane and 0.5 moles each of ethylene and hydrogen. Calculate the contents of each reactor after a certain reaction. A) Ethane: 0 moles, Ethylene: 1 mole, Hydrogen:

answered May 23, 2024

1 answer 138k views

A recent poll of 2200 randomly selected 18-25-year-olds revealed that 255 currently use marijuana or hashish. According to a publication, 12.5 % of 18-25-year-olds were current users of marijuana or hashish

asked May 22, 2024

1 answer 151k views

How does Robby solve Keith's problem? Answer:

asked May 1, 2024

2 answers 230k views

What receives neural signals from brain and peripheral nervous system and funnels the signals to the Pituitary Gland?

asked Apr 13, 2024

1 answer 152k views

The respiratory system can be a limiting factor in maximal exercise performance. Researchers studied the effect of two breathing frequencies on both performance times and several physiological parameters

asked Mar 28, 2024

1 answer 235k views

Make use of following information to answer the following questions: (CLO\#4) (MUST SHOW CALCULATION) (15) C=100+0.75Y D;I=100AED;G=50AED,TAX(T)= 20 AED a. Calculate equilibrium income Y in AED. (5) b.

answered Feb 16, 2024

1 answer 154k views

What is an equation of the line that passes through the points (2, -5)(2,−5) and (5, -2)(5,−2)?

asked Sep 24, 2023

2 answers 228k views

Simplify the expression

asked Sep 23, 2023

2 answers 46.6k views

Using personification Please help

answered Sep 15, 2023

1 answer 117k views

Ali and Keesha found a sale in a sporting goods store. Ali spent $33 on 2 pair of shorts and 3 packages of socks. Keesha spent $27 on 1 pair of shorts and 5 packages of socks. How much does one of each

asked Sep 14, 2023

1 answer 111k views

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