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frez [133]
3 years ago
11

If you're good at angles of elevation pls help meeee

Mathematics
2 answers:
jeyben [28]3 years ago
8 0

Answer:

202m

Step-by-step explanation:

Please see attached picture for full solution.

Let x meters be the height of the building.

sukhopar [10]3 years ago
5 0
What they said is most definitely right
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A poker hand consisting of 9 cards is dealt from a standard deck of 52 cards. Find the probability that the hand contains exactl
Andrew [12]

Answer: \dfrac{^{12}C_{6}\times^{40}C_3}{^{52}C_9} or  \dfrac{228}{91885} .

Step-by-step explanation:

Given : A poker hand consisting of 9 cards is dealt from a standard deck of 52 cards.

The total number of cards in a deck 52

Number of faces cards in a deck = 12

Number of cards not face cards = 40

The total number of combinations of drawing 9 cards out of 52 cards = ^{52}C_9

Now , the combination of 9 cards such that exactly 6 of them are  face cards =  ^{12}C_{6}\times^{40}C_3

Now , the probability that the hand contains exactly 6 face cards will be :-

\dfrac{^{12}C_{6}\times^{40}C_3}{^{52}C_9}

=\dfrac{\dfrac{12!}{6!6!}\times\dfrac{40!}{3!37!}}{\dfrac{52!}{9!\times43!}}\ \ [\because\ ^nC_r=\dfrac{n!}{r!(n-r)!}]\\\\=\dfrac{228}{91885}

Hence, the probability that the hand contains exactly 6 face cards. is  \dfrac{228}{91885} .

6 0
3 years ago
Helppp plzzz right nowwwwwwww
Pavlova-9 [17]
-4/3

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Rewrite in polar form: x^2+y^2-2y=7
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X²+y²-2y=7
using the formula that links Cartesian to Polar coordinates
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substituting into our expression we get:
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expanding the brackets we obtain:
r²cos²θ+r²sin²θ=7+2rsinθ
r²(cos²θ+sin²θ)=7+2rsinθ
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r²=2rsinθ+7
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3 years ago
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Find the distance between the points (2,4) and (9,10).
evablogger [386]

Answer: d = 9.219544 this is kinda exact haha

Step-by-step explanation:

For:

(X1, Y1) = (2, 4)

(X2, Y2) = (9, 10)

Distance Equation Solution:

=(9−2)2+(10−4)2‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾√

=(7)2+(6)2‾‾‾‾‾‾‾‾‾‾√

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=9.219544

7 0
3 years ago
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