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3 years ago

A computer sells for

Mathematics

2 answers:

grandymaker [24]3 years ago

3 0

Answer:

The value of the computer is given by 900(0.7)^t.

Step-by-step explanation:

A computer sells for $900.

If the price of the computer loses 30% of its value per year, then it is compounded every year.

Now, the price of the computer t years after it is sold will be

900(1 - 30/100)^t = 900(0.7)^t ........... (1)

Therefore, the value of the computer is given by the above equation (1). (Answer)

Lelechka [254]3 years ago

3 0

Answer:

900(0.7)^t

Step-by-step explanation:

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Find the height of cylinder when volume is 154 cm^3 volume and radius is 3 cm

zmey [24]

Answer:

Volume of a cylinder is πr²h

Where

r is the radius

h is the height

Volume = 154cm³

radius = 3cm

height = ? cm

154 = π × 3² × h

154 = π × 9 × h

154 = 9πh

divide both sides by 9π

h = 154/9π

h = 5.4cm

Height is 5.4cm

Hope this helps

4 0

4 years ago

Find the weighted average of a data set where 20 has a weight of 3, 40 has a weight of 5, and 50 has a weight of 2.

Citrus2011 [14]

The weighted average of a data set is 36.

Here,

Given data set;

20 has a weight of 3, 40 has a weight of 5, and 50 has a weight of 2.

We have to find the weighted average of a data set.

What is Weighted Average?

Weighted average is a calculation that takes into account the varying degrees of importance of the numbers in a data set.

Now,

Given data set;

20 has a weight of 3, 40 has a weight of 5, and 50 has a weight of 2.

The weighted average is given by the formula;

$x = \frac{f_{1} x_{1} + f_{2} x_{2}+ f_{3} x_{3}+ ...... f_{n} x_{n}}{f_{1} +f_{2} + f_{2}}$

Hence,

The weighted average of a data set;

$x = \frac{20*3+40*5+50*2}{3 +5+ 2}$

$x = \frac{360}{10} = 36$

Hence, The weighted average of a data set is 36.

Learn more about the weighted average visit:

brainly.com/question/18554478

#SPJ4

3 0

2 years ago

A password is 4 characters long, consisting of 2 letters and 2 numbers. The password must begin and end with a

Kisachek [45]

Answer:

65,000

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Write an expression that represents the volume of a rectangular-shaped box with a length 3 inches less than its height and a wid

slava [35]

Answer: h(h-3)(h+4)

Step-by-step explanation:

To find the volume of rectangular-shaped box we will have to multiply the length by the width by the height.

Given the statements we can determine the length with the equation

L = h -3 where l is the length and h is the height.

the width can also be represent by the equation

w = h + 4

The height is is h and the length is h- 3 and the width is also h+4 so the expression will be h(h-3)(h+4)

8 0

3 years ago

Find the quotient of 68.0052 and 12. round the answer to the nearest hundred

Fed [463]

Answer:

Quotient = 5.67 (Approx)

Step-by-step explanation:

Given:

Dividend = 68.0052

Divisor = 12

Find:

Quotient

Computation:

Quotient = 68.0052 / 12

Quotient = 5.6671

Quotient = 5.67 (Approx)

4 0

3 years ago