Answers by David Braun
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Answers by David Braun

Answers by David Braun
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19. Prove that: (b) cos(A + B).cos(A-B) = cos B-sin²A = cos²A-sin-B​
answered Oct 30, 2024
6 votes
148k views
Listen and select the one of two statements that corresponds to each drawing.1. Bath or shower a. Celia se ducha. 2 Brushes teeth or hair b. Celia se cepilla el pelo. 3 Gets dressed a. Celia se viste.
answered Jul 21, 2024
4 votes
45.0k views
An LED is typically wired in series with a current-limiting resistor. A) True B) False
answered May 11, 2024
4 votes
38.6k views
Perform the following transformations :First reflect the ABC across the y-axis ,then dilate by a factor of 1/2
answered Nov 11, 2023
2 votes
175k views
Please help me someone
answered Jul 11, 2023
6 votes
118k views
The scatterplot shows the time that movers spent packing large boxes for a customer. A graph titled Number of Packed Boxes has packing time (hours) on the x-axis and number of boxes on the y-axis. Points
answered Jul 10, 2023
10 votes
163k views
Aniyah studied for 1 14 hours yesterday and for 34 hours today. How long did she study over the past 2 days?
answered Jun 25, 2023
13 votes
127k views
The volume of a block is 90cm and its density is 4 g.what is the mass
answered Dec 29, 2022
7 votes
139k views
Which of the following statements is an example of a personal skill: a. I volunteer in my community b. I’m a really good cook c. I like being outside d. I love learning new things
answered Dec 19, 2022
10 votes
4.5k views
What is the answer to 2x=24
answered Oct 30, 2022
7 votes
218k views
Find the area of this shape
answered Oct 15, 2022
6 votes
104k views
Someone please help!
answered Sep 8, 2022
4 votes
107k views
What is an oil used in cooking that helped people in central Africa become healthier
answered Jul 28, 2022
4 votes
187k views
I NEED HELP RIGHT NOW PLEASE!!!!! NO LINKS
answered Jul 26, 2022
3 votes
150k views
What is the molarity of a solution that contains 4.87 g KCI (74.55 g/mol) dissolved in in 500.0 ml water?
answered Nov 4, 2021
1 vote
77.1k views
An isotope has 17 protons, 16 neutrons and 17 electrons. It's mass number is
answered Oct 26, 2021
4 votes
174k views
Was it hypocritical that the 1955 Montgomery city code allowed “Negro nurses” to sit in the “white section” of the bus if they were attending white people who needed their care?
answered Oct 21, 2021
4 votes
26.7k views
The exclusion of gain on the sale of a personal residence may be elected only by a taxpayer who has owned three or more residences.
answered Aug 17, 2021
3 votes
45.5k views
While chopping vegetables Alejandra cuts her finger accidentally what should Alejandra do first?
answered Aug 7, 2021
4 votes
161k views
In order for researchers to be able to say that Variable A causes Variable B, they must eliminate the possible influence of A. correlational variables B. independent variables C. dependent variables D.
answered Jun 17, 2021
6 votes
102k views
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