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4 years ago

Which line is parallel to to the line given below?

Mathematics

1 answer:

natita [175]4 years ago

7 0

Answer:

Step-by-step explanation:

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A sofa depreciates at 20% of its original value each year. If the sofa was $349 at its time of purchase, what is the value of th

klemol [59]

Answer:

$142.95

Step-by-step explanation:

Given Original value of the sofa = $349

Rate of depreciation each year = 20%

Number of years = 4

To find the value of the sofa after 4 years use depreciation formula:

If the constant decrease in population be R% per annum. Then the population after n years is $P \times\left(1-\frac{R}{100}\right)^{n}$

$349 \times\left(1-\frac{20}{100}\right)^{4}=349 \times\left(\frac{100-20}{100}\right)^{4}$

$=349 \times\left(\frac{80}{100}\right)^{4}$

$=349 \times\left(\frac{4}{5}\right)^{4}$

= 142.9504

= 142.95 (Nearest cent)

Hence, the value of sofa after 4 years is $142.95.

7 0

4 years ago

What is the product of (3a 2)(4a2 Ă˘â‚¬"" 2a 9)? 12a3 Ă˘Ââ€™ 2a 18 12a3 6a 9 12a3 Ă˘Ââ€™ 6a2 23a 18 12a3 2a2 23a 18.

Kay [80]

The product of $(3a + 2)(4a^2 - 2a + 9)$ will be $12a^3 + 2a^2 + 23a + 18.$

Given expression,

$(3a + 2)(4a^2 - 2a + 9).$

We have to find the product of $(3a + 2)(4a^2 - 2a + 9).$

Now using distributive property, we get

$3a(4a^2) - 3a(2a) + 3a(9) + 2(4a^2) - 2(2a) + 2(9)$

$12a^3 - 6a^2 + 27a + 8a^2 - 4a + 18$

$12a^3 + 2a^2 + 23a + 18$

Hence the product of $(3a + 2)(4a2 - 2a + 9)$ is $12a^3 + 2a^2 + 23a + 18.$

Thus the correct option is (D). $12a^3 + 2a^2 + 23a + 18.$

For more details on distributive property follow the link:

brainly.com/question/13130806

7 0

3 years ago

Add or subtract each expression.Simplify your final answer show all work.

Elan Coil [88]

1) 2x-1 or x=1/2
2) 5a-16 or a=16/5

8 0

4 years ago

What is the slope? will mark Brainly

Yanka [14]

Answer:

5/6

Step-by-step explanation:

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5 0

4 years ago

What is the midpoint of Line Segment AB, when A(7, 3) and B(7, -7)?

Hatshy [7]

Answer:

(7, -2)

Step-by-step explanation:

Add the points together and divide them by 2:

A+B/2

= ([7 + 7]/2, [3 + -7]/2)

= ([14]/2, [-4]/2)

= (7, -2)

8 0

3 years ago