3 years ago

13. A shop owner spent $540 to purchase a stock of

Mathematics

1 answer:

Daniel [21]3 years ago

3 0

Answer:

Step--by--step explanation:

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A backyard pool has a concrete walkway around it that is 3 feet wide on all sides. The total area of the pool and the walkway is

Sloan [31]

Answer:

$x \approx 21.080\,ft$ , $y = 29.080\,ft$

Step-by-step explanation:

The total area of the pool and the walkway is:

$(x + 6\,ft)\cdot (y + 6\,ft) = 950\,ft^{2}$

$(x + 6\,ft)\cdot (x + 14\,ft) = 950\,ft^{2}$

$x^{2} + 20\cdot x + 84\,ft^{2} = 950\,ft^{2}$

$x^{2} + 20\cdot x - 866\,ft^{2} = 0$

The roots of the second-order polynomial is:

$x_{1} \approx 21.080\,ft$ and $x_{2} \approx -41.081\,ft$

The only possible root is:

$x \approx 21.080\,ft$

The other dimension of the pool is:

$y = x + 8\,ft$

$y = 21.080\,ft + 8\,ft$

$y = 29.080\,ft$

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4 years ago

F the radius of a flying disc is 7.6 centimeters, what is the approximate area of the disc?

hoa [83]

Answer:

3.14x7.6=23.864 because raidus is the disctance around one circle

Step-by-step explanation:

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3 years ago

josh flips a colored chip that is red on one side and black on the other a total of 20 times. what is the probability of the 21t

kiruha [24]

As long as the mass of the chip is evenly distributed on each side, whatever times you flip the chip,

The probability will always be 50%

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3 years ago

I need help with this question 1/2 + 2 3/4=?

enyata [817]

Answer:

3.25

Step-by-step explanation:

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3 years ago

Find the area of the trapezoid.

butalik [34]

Answer:

8 ft

Step-by-step explanation:

t = a + b/2 times 2

2 + 6 = 8

8/2 = 4

4 x 2 = 8

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3 years ago