Answer: 27.42 units
Step-by-step explanation:
6 + 6 + 6 = 18
C= 1/2 3.14d
1/2 x 3.14 x 6
3.14 x 3
=9.42
18+9.42 = 27.41
45x = 180
divide by 45
x=4
yes
420 /d = 30
multiply by d
420 =30d
divide by 30
14 =d
no d=14
37+s = 80/2
37+s =40
subtract 37 from each side
s =3
no s=3
52+g =45+11
52+g = 56
subtract 52 from each side
g=4
no g=4
13+14 = 3f
27 = 3f
divide by 3
9=f
yes f=9
5+a-4√(a+1)/(a-3) is the simplified form of the number. This can be obtained by multiplying numerator and denominator with conjugate of the denominator.
<h3>Simplify the number:</h3>
Given the number,
√a+1-2/√a+1+2
Denominator = √a+1+2
Conjugate of the denominator = √a+1 - 2
Now, (√a+1-2)(√a+1 - 2 )/√(a+1+2)(√a+1 - 2 )
=(√a+1 - 2 )²/(√a+1)² - 4
=(a+1 -4√a+1+5)/(a+1-4)
=5+a-4√(a+1)/(a-3)
Hence 5+a-4√(a+1)/(a-3) is the simplified form of the number.
Learn more about rational numbers:
brainly.com/question/1310146
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Answer:
x+8=3x
Step-by-step explanation:
4x=20
4x/4=20/4
x=5
The solution to the first equation is x=5.
x/2=8
2(x/2)=2(8)
x=16
The solution to the second equation is x=16.
x+8=3x
x+8-x=3x-x
8=2x
8/2=2x/2
x=4
The solution to the third equation is x=4.
x=x+5/2
x-x=x+5/2-x
-x=5/2
x=-5/2
The solution to the fourth equation is x=-5/2.
The equation x+8=3x has the solution to x=4.
