Step-by-step explanation:
x= -2,
(x - 5) / 2= -6
( (-2) - 5) / 2= -6
(-7) / 2 = -6
-3.5 = - 6
right hand side not equal to left hand side of this equation.so,x= -2 cannot exist for this equation.
x=2,
(x - 5) / 2= -6
(2 - 5) / 2= -6
(-3) / 2= -6
-1.5 = - 6
right hand side not equal to left hand side of this equation.so,x= 2 cannot exist for this equation.
x= -17
(x - 5) / 2= -6
( ( -17) - 5) / 2= -6
(- 22) / 2= -6
-11 = -6
right hand side not equal to left hand side of this equation.so,x= -17 cannot exist for this equation.
x= -7,
(x - 5) / 2= -6
( ( -7) -5) / 2= -6
(-12) / 2= -6
-6= -6
right hand side equal to left hand side of this equation.so,x= -7 exist for this equation.
Answer: 5.4
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Explanation:
Angle D = 43 is the given reference angle
side FE = 5 is the side opposite the reference angle (since its the leg furthest away from angle D)
We want to find side DE which is the other leg. This is the adjacent side with angle D as the reference angle
Use the tangent rule
tan(angle) = opposite/adjacent
tan(D) = FE/DE
tan(43) = 5/DE
DE*tan(43) = 5
DE = 5/tan(43)
DE = 5.36184355 <<-- use a calculator here; this is approximate
DE = 5.4 <<-- round to the nearest tenth
That's why 5.4 is the answer
First lets make these numbers more simple...
9.1 x 10^2 = 910
918% = 918 (reason being percents are out of 100, so 100 = 100%, therefore 918% = 918) (this was wrong, its actually 918 / 100 = 9.18 by conversion of percent to decimal)
1830 / 2 = 915
920.0 = 920
Your arrangement: 920 , 918 , 915 , 910
Another way is: 920.0, 918% , 1830 / 2, 9.1x102
(answer is actually 920.0, 1830 / 2, 9.1 x 10^2, 918%)
Answer:
21+3r
Step-by-step explanation:
(7+r)3
3*7= 21
r*3= 3r
21+3r
I’m not 100% sure but I think it is 125
Answer:(maybe) 125°
