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marin [14]
3 years ago
8

Please please please please answer now and please please explain thank you so much so so so much

Mathematics
1 answer:
oee [108]3 years ago
3 0

Answer:

2x=y

Step-by-step explanation:

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Given three consecutive odd integers, what is the greatest number if triple of the sum of thrice the third one and twice the fir
Nostrana [21]

Let n be the smallest of these integers. The other two are then n + 2 and n + 4.

"triple of the sum of thrice the third one and twice the first one is equal to 291" is a long-winded way of saying

3 (3 (n + 4) + 2n) = 291

Solve for n :

3 (3n + 12 + 2n) + 291

3 (5n + 12) = 291

15n + 36 = 291

15n = 255

n = 17

Then the greatest of the three integers is n + 4 = 21.

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If f(7)=22, then f^-1(f(7))=?<br> Please help!!
alexira [117]

Answer:

  7

Step-by-step explanation:

In general, the point of an inverse function is to show you the value that gives a particular function value. That is, ...

  f^{-1}(22)=7\\\\f^{-1}(f(x))=x\\\\f^{-1}(f(7))=7

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3 years ago
What is 9/12 simplified? Thanks
Pani-rosa [81]
\frac{9:3}{12:3} =  \frac{3}{4}
6 0
3 years ago
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A ship sails from harbour h on a bearing of 084 for 340 km until it reaches point P. It the sails on a bearing of 210 for 160km
sattari [20]

Answer:

QH = 227.8 km ≅ 228 km

Step-by-step explanation:

∵ The bearing from H to P is 084°

∵ The bearing from P to Q is 210°

∵ The distance from H to P = 340 km

∵ The distance from P to Q = 160 km

∴ The angle between 340 and 160 = 360 - 210 - (180 - 84) = 54°

( 180 - 84) ⇒ interior supplementary

By using cos Rule:

(QH)² = (PH)² + (PQ)² - 2(PH)(PQ)cos∠HPQ

(QH)² = 340² + 160² - 2(340)(160)cos(54) = 51904.965

∴ QH = 227.8 km ≅ 228 km

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3 years ago
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Answer:

7

Step-by-step explanation:

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