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natta225 [31]
3 years ago
14

The position, x, of an object is given by the equation x = A + Bt +Ct2, where t refers to time. What are the dimensions of A, B,

and C?
Mathematics
1 answer:
Serjik [45]3 years ago
4 0

Answer: Dimensions of A are of length [L]

Dimensions of B are of LT^{-1}

Dimensions of C are of LT^{-2}

Step-by-step explanation:

The given equation is

x(t)=A+Bt+Ct^{2}

Since the dimension on the L.H.S of the equation is [L] , each of the terms on the right hand side should also have dimension of length[L] to be dimensionally valid

Thus

Dimensions of A = [L]

Dimensions of Bt = [L]

Bt=[L]\\\\[B][T]=[L]\\\\\therefore [B]=LT^{-1}

Similarly

Dimensions of Ct^{}2 = [L]

Ct^{2}=[L]\\\\[C][T]^{2}=[L]\\\\\therefore [C]=LT^{-2}

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Zielflug [23.3K]

Answer:

8.75!

Step-by-step explanation:

the answer is x-2.5=6.25

6.25+2.50=8.75

7 0
3 years ago
18÷3(5-4+1) =??<br> 3 or 12 <br> how ?!
sergejj [24]

Answer:

12

Step-by-step explanation:

Parenthesis first:

5-4+1

5-4=1+1=2

18÷3×2

Divide:

18÷3×2

Multiply:

6×2=12

3 0
3 years ago
Read 2 more answers
URGENT!!!!!! Find the value of q in the following system so that the solution to the system is——
valkas [14]
<h3>Answer:  Q = 8</h3>

====================================================

Explanation:

The left hand side of the first equation is x-3y

The left hand side of the second equation is 2x-6y = 2(x-3y). Note how it's simply double of the first expression x-3y

If we multiply both sides of the first equation by 2, we get

x-3y = 4

2(x-3y) = 2*4

2x-6y = 8

Meaning that 2x-6y = 8 is equivalent to x-3y = 4. Both produce the same line leading to infinitely many solutions. Each solution will lay along the line x-3y = 4.

We can say each solution is in the set {(x,y): x-3y = 4}

Which is the same as saying each solution is of the form (3y+4,y)

4 0
3 years ago
If (x + 2) is a factor of x3 – 19x – p, find the value of p. Help please​
Sergio039 [100]

If x-a is a factor of a polynomial P(x) then, a is its root.

So -2 is a root of x^3-19x-p

(-2)^3-19\cdot(-2)-p=0\\-8+38-p=0\\p=30

3 0
3 years ago
25 POINTS I WILL GIVE BRAINLIEST
Nutka1998 [239]

Answer:

$10.01

where x = 4.1/10 x=14.11

Step-by-step explanation:

-7x^2 + 32x + 240

-7x^2 +32x

-49x+32 +240

240/17x = 17/240

240/49x = 4 9/10

          x = 14.11 - 4. 10 9/10

          x = -4.01

rounded to 2dp

x = 14.11

x = -4.01

Tacos should be priced at $10.01

5 0
3 years ago
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