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adoni [48]
3 years ago
10

A plank is 2m long and30cm wide has volume of 0.018m. what is its thickness

Mathematics
1 answer:
matrenka [14]3 years ago
6 0
I think the thickness of the plank is 0.03m
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Create an equivalent trinomial for 2 (3x + 5)(2x - 6)​
emmainna [20.7K]

Answer:

24x^2+112x+120

Step-by-step explanation:

distribute the 2

(6x+10)(4x+12)

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24x^2+112x+120

5 0
3 years ago
Write a polynomial function of the least degree that has roots of 3 and (4 + i).
polet [3.4K]

Answer:

  • x³ - 11x² + 41x - 51

Step-by-step explanation:

The least number of degree is 3 and the third root should be (4 - i) to make polynomial rational.

<u>The polynomial is:</u>

  • (x - 3)(x - (4 + i))(x - (4 + i)) =
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4 0
2 years ago
HELPPPPP PLEASEEEEEEE
Naddik [55]

Answer:

B is the answer

Step-by-step explanation:

5 0
3 years ago
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Someone help me please with this algebra problem
aleksandr82 [10.1K]

Answer:

4

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7 0
3 years ago
In the 1990s the demand for personal computers in the home went up with household income. For a given community in the 1990s, th
WITCHER [35]

Answer:

a) 0.5198 computers per household

b) 0.01153 computers

Step-by-step explanation:

Given:

number of computers in a home,

q = 0.3458 ln x - 3.045 ;   10,000 ≤ x ≤ 125,000

here x is mean household income

mean income = $30,000

increasing rate, \frac{dx}{dt} = $1,000

Now,

a) computers per household are

since,

mean income of  $30,000 lies in the range of 10,000 ≤ x ≤ 125,000

thus,

q = 0.3458 ln(30,000) - 3.045

or

q = 0.5198 computers per household

b) Rate of increase in computers i.e \frac{dq}{dt}

\frac{dq}{dt} = \frac{d(0.3458 ln x - 3.045)}{dt}

or

\frac{dq}{dt}=0.3458\times(\frac{1}{x})\frac{dx}{dt} - 0

on substituting the values, we get

\frac{dq}{dt}=0.3458\times(\frac{1}{30,000})\times1,000

or

= 0.01153 computers

6 0
3 years ago
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