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zysi [14]
3 years ago
7

HELP I NEED THIS DONE

Mathematics
2 answers:
masha68 [24]3 years ago
8 0

The answer is going to be b.

have a nice day

kifflom [539]3 years ago
5 0

Answer:

B) d = c - 9

Step-by-step explanation:

Whenever you subtract nine from c, you get the correlating d output.

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If you draw all of the diagonals from a single vertex of a convex polygon with 8 sides, how many triangles are formed?
oee [108]
The number of triangles is n-2
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if applying this you won't have to draw any diagonals to
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6 0
3 years ago
A political polling organization wishes to select a smaller focus group from a group of 7 Republicans, 10 Democrats, and 2 Indep
Alina [70]

Answer:

a) 1470 ways

b) 2835 ways

Step-by-step explanation:

the question is not correct, in the correct question The number of independents should be 3 not 2

there are 7 republicans, 10 democrats and 3 independents.

C(n,r) is the number of different combinations of n distinct objects taken r at a time.

C(n,r) = \frac{n!}{(n-r)!r!}

a) it will consist of 1 Republican and 4 Democrats

The number of ways this can be chosen is = C(7,1) × C(10,4) = \frac{7!}{(7-1)!1!}  * \frac{10!}{(10-4)!4!} = 7 × 210 = 1470 ways

(b) it will consist of 2 Republicans, 2 Democrats, and 2 Independents (consist of 2 independents not 3)

The number of ways this can be chosen is = C(7,2) × C(10,2) × C(2,2)

 =\frac{7!}{(7-2)!2!}  * \frac{10!}{(10-2)!2!}* \frac{3!}{(3-2)!2!} = 21 × 45 × 3 = 2835 ways

7 0
3 years ago
Whats the area of a square that is 9m and 9m? marking branliest.
guapka [62]

Answer:

9 x 9 =81

Step-by-step explanation:

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2x-5 is the expression that represents 5 less than twice x
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3 years ago
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