Answers by Marc SJ
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Answers by Marc SJ

Answers by Marc SJ
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Suppose 216 subjects are treated with a drug that is used to treat pain and 53 of them developed nausea. Use a 0.01 significance level to test the claim that more than 20​% of users develop nausea.
answered Jan 2
7 votes
42.6k views
If the cross product of two vectors vanishes, what can you say about their directions? a) Parallel b) Perpendicular c) Opposite d) Cannot be determined
answered Dec 30, 2024
5 votes
34.6k views
Calculate the mass of water produced when 3.53 g of butane reacts with excess oxygen?
answered Oct 14, 2024
5 votes
91.5k views
If alpha level is .05, the confidence level is .95 a. true b. false
answered Aug 28, 2024
2 votes
21.6k views
What is (x + 2 ) (4x - 1 )
answered May 24, 2024
6 votes
727 views
Cultural groups may be distinguished by their food habits, ______. a) Music preferences b) Language skills c) Religious beliefs d) Culinary traditions
answered Apr 1, 2024
3 votes
43.3k views
A mixture of 0.0375 g of h and 0.0185 moles of o in a closed container is sparked to initiate a reaction. How many grams of water can form? Which reactant is in excess? And how many grams of it remain
answered Mar 26, 2024
3 votes
152k views
Audio CDs encode music at 44,000 Hz using 16-bit samples. a) What is the bit rate for uncompressed music? b) How many bytes are needed for an hour’s worth of music?
answered Mar 12, 2024
4 votes
124k views
PLEASE HELP ASAP, 30 POINTS
answered Feb 9, 2024
3 votes
132k views
What are the for basic components of all health care delivery systems?
answered Feb 8, 2024
5 votes
189k views
What do you already know about the beginnings of the United States? Pls I need this today:(
answered Jan 14, 2024
0 votes
34.4k views
Is 12:44 equivalent.
answered Sep 20, 2023
6 votes
182k views
Worth 60 points Consider the following system of equations: y = -x + 2 y = 3x + 1 Which description best describes the solution to the system of equations? Line y = -x + 2 intersects line y = 3x + 1 Lines
answered Sep 11, 2023
4 votes
141k views
A solution to -x + 10 = 2x + 4 is 8
answered Sep 8, 2023
3 votes
32.9k views
Match the layer to how much of Earth's mass it comprises. * 35% 1% 64% Core Mantle Crust
answered Mar 6, 2023
5 votes
144k views
Excess thermal energy can be used to generate electricity that operates electrical devices within the power plant. What is this an example of?sustainable energycogenerationcarrying capacityfuel efficiency
answered Mar 3, 2023
2 votes
24.3k views
A wire carrying a 30.0-A current passes between the poles of a strong magnet that is perpendicular to its field and experiences a 2.15-N force on the 4.00 cm of wire in the field. What is the average field
answered Nov 28, 2022
5 votes
234k views
A single 1,000 kg train car moving at 3.0 m/s collides with the back of two 1,000 kg train cars linked together. It latches onto the car it strikes as the two parts of the coupled cars exert forces on
answered Oct 28, 2022
1 vote
187k views
Reese is selling lemonade at the parade. He gets to keep 50% of the money he collects. A large lemonade is $5.00 and a small lemonade is $2.00. The expression represents 50% of the money he collects. 0.
answered Oct 1, 2022
6 votes
145k views
write a paragraph (120-150) words about your favorite activity with your family when you were a child. write three reasons and examples why this was your favorite activity
answered Sep 28, 2022
3 votes
1.2k views
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