3 years ago

Please help me asap!

Mathematics

1 answer:

Alchen [17]3 years ago

5 0

UhhhhhhhhhhHHHHHHHHHHHHHHHHH IDK BUT GUESS AND PUT B

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1.3n-0.03=-9 (solve for n) grade lvl. 7

bazaltina [42]

Hello from MrBillDoesMath!

Answer:

-6.9

Discussion:

1.3n - 0.03 = -9 => multiply both sides by 100

130n - 3 = -900 =>

130n = -900 +3 = -897 => add 3 to both sides

n = -897/130 =>

n = - (69 * 13)/ (10*13) =>

n = - 69/10 = - 6.9

Thank you,

MrB

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3 years ago

-2/9x+(-7/9y)+(-7/10x+(-2/3)

coldgirl [10]

Step-by-step explanation:

=-32-9 08 3X-97y

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2 years ago

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,

Serjik [45]

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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3 years ago

5/6 divided by 1 1/4<br>please I really need it I will give you brainless if is right

ch4aika [34]

Answer:

10/33 or 0.30

Step-by-step explanation:

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Elis [28]

It would be 2/9 or about 22.22%

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3 years ago

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