3 years ago

Y varies directly as x and inversely as the square of z. y=10 when x=16 and z=4. Find y when x=2 and z=4.

Mathematics

1 answer:

Zepler [3.9K]3 years ago

7 0

I think it's 6 hope it's work

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How do I find n for this problem ?

Anna007 [38]

Tan(x) = opp/adj

tan(30°) = 9/n

n x √3/3 = 9

3n x √3 = 27

3√3n = 27

√3n = 9

n = 9/√3

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3 years ago

Solve 6x + 6 > 3x + 15

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The denarius was a unit of currency in ancient Rome. Suppose it costs the Roman government 10 denarius per day to support 3 legi

Romashka [77]

Answer:

We can not solve for a unique cost for each soldier.

Step-by-step explanation:

Let x be the daily cost for legionaries and y be the daily cost for archers.

Upon using our given information we will get a system of linear equations as:

$3x+3y=10...(1)$

$x+y=3...(2)$

Now we will solve for x from our 2nd equation,

$x = 3-y$

Now we will substitute this value in our 1st equation.

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We can see that -3y cancels out with 3y and 9 is not equal to 10. So this is an unsolvable system. Therefore, we can not find a unique cost for each soldier.

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3 years ago

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Travka [436]

Check the picture below.

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4 years ago

Polynomial standard form (9 + m)(-m + 9)

Flauer [41]

Answer:

Step-by-step explanation:

(9 + m)(-m + 9) = (9 + m)(9 - m) {(a+b)(a-b) = a² - b²}

= 9² - m²

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= -m² + 81

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3 years ago

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