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2 years ago

Hi can someone please help me with my math work?

Mathematics

1 answer:

Eva8 [605]2 years ago

4 0

Answer:

Integers are 7, 8, 9

Step-by-step explanation:

Let three positive consecutive integers are (n - 1), n, (n + 1)

If the product of the second and the third integer is 72,

n(n + 1) = 72

n² + n = 72

n² + n - 72 = 0

n² + 9n - 8n - 72 = 0

n(n + 9) - 8(n + 9) = 0

(n - 8)(n + 9) = 0

(n - 8) = 0 ⇒ n = 8

(n + 9) = 0 ⇒ n = -9

For n = 8,

Integers will be ⇒ 7, 8, 9

For n = -9,

Integers will be ⇒ -10, -9, -8

Since, all integers are positive,

7, 8, 9 will be the answer.

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Closing parenthesis is misplaced. Should be:
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3 years ago

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Brrunno [24]

Answer:

For right angle triangle,

we use Pythagoras theorem that is:

$c^{2} =a^{2} +b^{2}$

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For question 1:

c = ?

a = 40

b = 9

putting them in formula,

c = $\sqrt{40^{2} + 9^{2} }$

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For question 2:

c = ?

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putting them in formula,

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c = approximately 17.69181

For question 3:

c = 35

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putting them in formula,

$c^{2} =a^{2} +b^{2}$

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putting them in formula,

$c^{2} =a^{2} +b^{2}$

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2 years ago

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Answer:

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Hi Lasagna!

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