Answer:
C. 7.8
Step-by-step explanation:
This problem involves the use of a trigonometric ratio. This one specifically involves the use of cosine as it provides the leg adjacent to the angle and the hypotenuse.
cos(40) = 6/x
cos(40)*x=6/x*x
cos(40)*x=6
cos(40)/cos(40)*x=6/cos(40)
x=6/cos(40)
x=7.83
The value of x is C. 7.8
Answer:
3/2 is slope
m= slope
y=mx+b
Step-by-step explanation:
2y=3/2x+7/2
2 - 0.5n= 3n+16
----------------------- subtract 2 from both sides
-2 -2
-0.5n = 3n+14
----------------------- then subtract -3n from both sides as well
-3n -3n
-3.5n = 14
--------------- divide -3.5 on each side
-3.5 -3.5
simplify
Answer: n= -4
Answer:
Choose the figure with side lengths 0.5, 1, 2 and 2.5
Step-by-step explanation:
Similar figures are figures which have the same shape but not the same size. This means their angle measures are equal but their side lengths are not instead they are proportional. They are related by a scale factor. To find the new side lengths of the figure multiply the original side lengths by 1/2.
The sides are 1, 2, 4, and 5.
They become:
1*1/2 = 0.5
2*1/2 = 1
4*1/2 = 2
5*1/2 = 2.5
Choose the figure with these distances.
Answer:
1/10
Step-by-step explanation:
If she painted 1/20 of a fence in 1/2 hour she can paint another 1/20 of the fence in another 1/2 hour.
1/20 + 1/20 = 2/20 = 1/10