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Lostsunrise [7]
3 years ago
8

When you buy a tv or computer monitor, the size is listed as a single number measurement. This number is the diagonal distance b

etween opposite corners of the screen. For example, a 50-inch screen has 50 inches between opposite corners. Assume that the screen you just bought has a ratio of length to width of 2:1. Meaning, if its length is a, its width is 2a. What is the length and width of a 45-inch screen?
Mathematics
1 answer:
Trava [24]3 years ago
6 0

Answer:

l = 40.25 inches

w = 20.13 inches

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Rory walks a combined 7/8 of a mile to school and back each day. How many miles does he walk each way?
vlabodo [156]
He walks to and back from school. 7/8 x 2
14/8 or 1 6/8 or 1 3/4 miles in all. 
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3 years ago
Describe in words how you would solve<br><br>the linear system y = 3x + 1 and y = - 2x + 3.
disa [49]

Answer:

Below.

Step-by-step explanation:

As both the right sides of the 2 equations are equal to y, by the transitive law of equality 3x + 1 = -2x + 3.

W then solve this equation for x then substitute this value of x  in the first equation ( y = 3x + 1) to find the value of y.  

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3 years ago
Jesse's grades are as follows: Tests: 84, 97.62, 67, 79 Quizzes: 96, 100, 100.76 Homework: 20. 100, 90, 80 Using the following G
nydimaria [60]

Answer:

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Step-by-step explanation:

 

   

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3 years ago
Question six about significant figures, please help!
belka [17]

rules to find :- 1 All non zeroes number are significant

2  if zero proceeding the decimal point also work as non zero figure

3 zero are following the decimal point and proceeding the first non zero digit

4 Zero in between 2 non zero digits are also significant

5 if 1 zero follow the decimal point


790  :-    2 significant figures

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81.05  :- 4 significant figures  ( rule 4)

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8 0
3 years ago
Find the kissing lengths of the sides of the triangle.
alina1380 [7]

Answer: The last option.

Step-by-step explanation:

The triangle shown in the figure attached is a right triangle.

1. You can calculate the lenght <em>a </em>as following:

sin\alpha=\frac{opposite}{hypotenuse}

opposite=a\\hypotenuse=6in\\\alpha=30\°

Substitute values and solve for <em>a</em>. Then, you obtain:

sin(30\°)=\frac{a}{6in}\\a=6in*sin(30\°)\\a=3in

2.  You can calculate the lenght<em> b </em>as following:

cos\alpha=\frac{adjacent}{hypotenuse}

adjacent=b\\hypotenuse=6in\\\alpha=30\°

Substitute values and solve for <em>b</em>. Then, you obtain:

cos(30\°)=\frac{b}{6in}\\b=6in*cos(30\°)

b=3\sqrt{3}in

3 0
3 years ago
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