Answer:
Step-by-step explanation:
There are no numbers sorry.
Answer:
The projected image has dimensions 4 times those of the computer screen. The ratio is 1:4.
Step-by-step explanation:
The ratio of the projected width to the computer screen width is ...
(53 in)/(13.25 in) = 4
The ratio of heights is the same:
(42.4 in)/(10.6 in) = 4
The linear dimensions of the projected image are 4 times those of the computer screen.
___
The way the question is written, you may be expected to write this 1 to 4 ratio as the fraction 1 : 4 or 1/4.
Answer:
24/25
Step-by-step explanation:
COS = adjacent/hypotenuse
Area = Side x Side meaning it's 12 x 13 = 156
Area = 156
Answer:
- x = 10
- B. 3/7
Step-by-step explanation:
1. (x - 2)/ 4 - (3x + 5)/7 = - 3
7(x -2) -4(3x +5) = -84 . . . . . . . multiply by 28
7x -14 -12x -20 = -84 . . . . . . . . eliminate parentheses
-5x -34 = -84 . . . . . . . . . . . . . . collect terms
-5x = -50 . . . . . . . . add 34
x = 10 . . . . . . . . . . . divide by -5
__
2. 1/(1 + 1/(1 - 1/x)) = 4
1 = 4(1 +1/(1 -1/x)) . . . . multiply by the denominator
-3 = 4/(1 -1/x) . . . . . . . eliminate outer parentheses, subtract 4
-3(1 -1/x) = 4 . . . . . . . multiply by the denominator
-3 +3/x = 4 . . . . . . . . eliminate parentheses
3/x = 7 . . . . . . . . . . . add 3
x = 3/7 . . . . . . . . . . . multiply by x/7
