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2 years ago

Pls help yes or no I will mark brainlist if correct ? :)

Mathematics

1 answer:

kumpel [21]2 years ago

8 0

Answer:

see below

Step-by-step explanation:

63 x (4/9) = 16 ≠ 28 No

18 x (4/9) = 8 Yes

96 x (4/9) = 42.666 = 43 (when rounded up to nearest whole number) No

36 x (4/9) = 16 Yes

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Suppose that 7 female and 5 male applicants have been successfully screened for 5 positions. If the 5 positions are filled at ra

katen-ka-za [31]

Answer:

(a) 350

(b) 175

(d) 196

Step-by-step explanation:

Number of females = 7

Number of males = 5

Total ways of selecting r items from n items is

$^nC_r=\dfrac{n!}{r!(n-r)!}$

(a)

Total ways of selecting 3 females and 2 males.

$\text{Total ways}=^7C_3\times ^5C_2$

$\text{Total ways}=\dfrac{7!}{3!(7-3)!}\times \dfrac{5!}{2!(5-2)!}$

$\text{Total ways}=35\times 10$

$\text{Total ways}=350$

(b)

Total ways of selecting 4 females and 1 male.

$\text{Total ways}=^7C_4\times ^5C_1$

$\text{Total ways}=32\times 5$

$\text{Total ways}=175$

(c)

Total ways of selecting 5 females.

$\text{Total ways}=^7C_5\times ^5C_0$

$\text{Total ways}=21\times 1$

$\text{Total ways}=21$

(d)

Total ways of selecting at least 4 females.

Total ways = 4 females + 5 females

$\text{Total ways}=175+21$

$\text{Total ways}=196$

6 0

3 years ago

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Fynjy0 [20]

Answer:

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Step-by-step explanation:

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2 years ago

In how many ways could a club of 29 appoint a committee of 4 people?

qwelly [4]

Answer:

7.25

Step-by-step explanation:

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2 years ago

Whats the slope of the line?

TiliK225 [7]

Answer:

m = rise/run = 4/5.

Step-by-step explanation:

This line goes throught the "exact" grid intersections (-2, 0) and (3, 4). As we move from the first point to the second, we see that x increases by 5 (this is the 'run') and y increases by 4 (this is the 'rise'). Thus, the slope of this line is m = rise/run = 4/5.

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3 years ago

What is the value of this expression 3*[(7+8)*2+6] A.64 B.87 C.96 D.108

Westkost [7]

D. 108
thats the answer

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3 years ago

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