Answer:
n divided by 6 (n/6)
Step-by-step explanation:
The answer is 6 . (3x4)/(4x3)-10 . 3x4=12 . 4x3= 12 . 12-10=2 12/2=6
Answer:
X=6.833-0.66y
Y=10.25-1.5x
Step-by-step explanation:
Make each the subject
Answer:
<h3> 1/√3</h3>
Step-by-step explanation:
Given the expression tan (-150), from trigonometry identity, tan(-θ) = -tanθ
Hence tan (-150) = - tan 150
First is to find the value of tan 150.
tan 150 = tan (180-30)
tan (A+B) = (tan180 - tan30)/1+tan180tan30
tan (180-30) = (0 - 1/√3)/1+0(1/√3)
tan (180-30) = -1/√3/1
tan (180-30) = -1/√3
Since tan 150 = -1/√3
-tan 150 = -(- 1/√3)
-tan 150 = 1/√3
Since -tan 150 = tan (-150) = 1/√3
Hence the exact value of tan (-150) is 1/√3
Answer:
x=200
Step-by-step explanation:
x−y=80
3/5 = y/x
Multiply the second equation by x
3/5 x = y/x *x
3/5 x = y
Substitute this into the first equation for y
x-y =80
x - 3/5x = 80
2/5 x = 80
Multiply each side by 5/2 to isolate x
5/2 *2/5x = 80 *5/2
x = 200