Mathematics, 30.06.2019 17:30 cooltez100
Find the width and height of a 100in television that has an aspect ratio of 4: 3. a. width- 20in height- 60in b. width- 60in height- 80in c. width- 80in height- 60 d. width- 60in height- 20in
Answers: 1
![\bf \textit{using the pythagorean theorem} \\\\ c^2=a^2+b^2 \qquad \begin{cases} c=\stackrel{hypotenuse}{100}\\ a=\stackrel{adjacent}{4x}\\ b=\stackrel{opposite}{3x}\\ \end{cases}\implies 100^2=(4x)^2+(3x)^2 \\\\\\ 10000=(4^2x^2)+(3^2x^2)\implies 10000=16x^2+9x^2\implies 10000=25x^2 \\\\\\ \cfrac{10000}{25}=x^2\implies 400=x^2\implies \sqrt{400}=x\implies 20=x \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ ~\hfill \stackrel{w=4x}{80}\qquad \stackrel{h=3x}{60}~\hfill](/tpl/images/0035/6616/93cc2.png)
Another question on Mathematics
Mathematics, 22.06.2019 03:00
12 3 4 5 6 7 8 9 10 time remaining 42: 01 ryan gathered data about the age of the different dogs in his neighborhood and the length of their tails. which best describes the strength of the correlation, and what is true about the causation between the variables?
Answers: 2
Mathematics, 22.06.2019 04:30
The three sides of a triangle have lengths of 4x+3, 2x+8, and 3x-10. what is the length of the shortest side if the perimeter of the triangle is 136cm?
Answers: 1
Mathematics, 22.06.2019 05:00
What number can each term of the equation be multiplied by to eliminate fractions before solving ? 6-3/4x+1/3=1/2x+5
Answers: 2
You know the right answer?
Find the width and height of a 100in television that has an aspect ratio of 4: 3. a. width- 20in hei...
Questions
Computers and Technology, 06.01.2021 17:40
Mathematics, 06.01.2021 17:40
Arts, 06.01.2021 17:40
Computers and Technology, 06.01.2021 17:40
Social Studies, 06.01.2021 17:40
History, 06.01.2021 17:40
Mathematics, 06.01.2021 17:40
