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3 years ago

12

2/x^2+1 nghịch biến trên khoảng

1 answer:

Keith_Richards [23]3 years ago

3 0

Answer:

2$$##4447+$+$$xxxwaa

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The useful life of a certain piece of equipment is determined by the following formula: u=(8d)/h^2, where u is the useful life o

Anni [7]

Answer:

The correct answer is E.

Step-by-step explanation:

First I look for the relationships between the coefficients. The first term corresponds to the base value.

$\frac{8*d}{h^{2}} = \frac{8}{1} * \frac{d}{h^{2} }$

The second term corresponds to the value obtained when the density of the underlying material is doubled and the daily usage of the equipment is halved.

$\frac{2*8*d}{(0,5*h)^{2}} = \frac{16*d}{0,25 * h^{2}} = \frac{16}{0,25} * \frac{d}{h^{2} }$

With the I get the ratio of coefficients of $\frac{d}{h^{2}}$ :

$\frac{8}{1}$ = 8

$\frac{16}{0,25}$ = 64

Now I calculate the percentage increase in the useful life of the equipment as:

% = $\frac{64}{8}$ * %100 = %800

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4 years ago

Solve for x. What is the solution to the system of equations?<br> ( <br> , <br> )

labwork [276]

(3,-2) hope this helps Yall

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3 years ago

How to write p multiplied by 4 as an algebraic expression

Anni [7]

Answer:

p x 4

Step-by-step explanation:

p x 4

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3 years ago

A contractor digs a hole for the basement of a new house that is 40 feet long and 10 1/2 feet deep. What is the width of the hol

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3 years ago

Charles is going camping with his family their campsite is 7/8 miles away they walk at a steady speed 1 7/8 mph how many minutes

Dafna11 [192]

R=d/t
15/8=7/8 divided by t
so t=7/8 divided by 15/8
t=7/15
convert to minute
so 7/15*60=28 min is answer
message does it help u

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3 years ago