The answer for this question is 5.05
Answer:
22.39
Step-by-step explanation:
angle D + angle F + angle E = 180 (angle of triangle)
30 +60 + E = 180
E = 180 - 90
E = 90
so triangle DEF is right angled triangle
we know that,
sin 30 = EF /DF
OR, 1/2 = 6/ DF
OR, DF= 12
again,
cos 30 = De/DF
root3 /2 = DE /12
DE= 10.39
hence DF +DE
= 12 + 10.39
= 22. 39
Answer:
Length = 46 inches. Width = 8 inches.
Step-by-step explanation:
Length L = 6W - 2 inches where W = width.
Perimeter = 2L + 2W so
2W + 2(6W - 2) = 108
2W + 12W - 4 = 108
14W = 112
R = 112/14
W = 8 inches.
So L = 6*8 - 2 = 46 inches.
Answer:
y= -1/23
Step-by-step explanation:
The equation y(5)-4y(4)+4y(3)=1 can be solved thus:
Work on brackets first:
5y-16y+12y=1
Add up y values
5y-28y=1
Divide both sides of equation
-23y=1
y=1/-23
Therefore the value of y is -1/23
Answer choice B is wrong because y-y^1 not y-x^1 which also means that answer choice D is wrong because you cannot do a number minus a negative.
Answer choice A is wrong because y-y^1=m(x-x^1) remember, you cannot subtract a negative so it becomes posotive which means that answer choice C is your best bet
Have a nice day!