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Dennis_Churaev [7]
4 years ago
13

To win a certain state lottery, players must correctly choose 4 numbers (in any order) from the numbers 1 to 40. How many differ

ent 4 number combinations are there? A. 800 B. 91390 C. 160 D. 24
Mathematics
2 answers:
irina [24]4 years ago
5 0

Answer:  B. 91,390

Step-by-step explanation:

The combination of n things taken m things at a time is given by :-

^nC_m=\dfrac{n!}{m!(n-m)!}

Given : The total numbers in lottery = 40

The number of correct numbers to win the lottery = 4

Now, the combination of 40 numbers taken 4 correct numbers at a time is given by :-

^{40}C_{4}=\dfrac{40!}{4!(40-4)!}\\\\=\dfrac{40\times39\times38\times37\times36!}{(24)(36!)}=91,390

Hence, there are 91,390 different 4 number combinations .

inn [45]4 years ago
4 0
Theres about 800 different combinations, i'm not sure though, i'm sorry if i'm wrong
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In farming, the relationship between precipitation during the growing season and crop yield is quadratic. The following table sh
Sergeu [11.5K]

Answer:

walks dogs for 3 hours on Saturday and 4 hours on

Sunday. She calculates her total pay to be $57.75.

Which equation could be used to check the reasonableness of her total?

Step-by-step explanation:

jol'

5 0
3 years ago
Adam and Tom share a sum of money in the ratio 18:17
Digiron [165]

x = total amount split between Adam and Tom.

since we know the total amount split between both in a 18 : 17 ratio is "x", let's divide "x" by (18 + 17) and distribute accordingly to get the amount of each.

\stackrel{Adam~received}{18\cdot \cfrac{x}{18+17}}\qquad \qquad \stackrel{Tom~received}{17\cdot \cfrac{x}{18+17}} \\\\[-0.35em] ~\dotfill\\\\ \stackrel{\textit{since we know that Adam got "5" more}}{ \stackrel{Adam}{18\cdot \cfrac{x}{18+17}}~~ = ~~\stackrel{Tom}{17\cdot \cfrac{x}{18+17}~~ + ~~5} }\qquad \implies \qquad \cfrac{18x}{35}~~ + ~~\cfrac{17x}{35}+5

\stackrel{\textit{multiplying both sides by }\stackrel{LCD}{35}}{35\left( \cfrac{18x}{35} \right)~~ = ~~35\left( \cfrac{17x}{35}+5 \right)}\implies 18x~~ = ~~17x+175\implies \boxed{x =175} \\\\[-0.35em] ~\dotfill\\\\ \stackrel{Tom~received}{17\cdot \cfrac{x}{18+17}}\implies \cfrac{17(175)}{35}\implies \blacktriangleright 85 \blacktriangleleft

5 0
2 years ago
The answer To this question please
Radda [10]

Answer:

the third question because if you follow Pemdas you should be getting the third answer.

Step-by-step explanation:

7 0
3 years ago
You believe in the power of compounding and decide to save $1 per day by avoiding the purchase of a soda. You deposit the $1 at
Fiesta28 [93]

Answer:

option (c) $18,032

Step-by-step explanation:

Data provided in the question;

Amount deposited at the end of each day = $1

Interest paid = 8% compounded daily = 0.08

Daily interest rate = \frac{\textup{0.08}}{\textup{365}}  =  0.000219

Duration = 20 years = 20 × 365 days = 7300 days

Now,

the Future value is given as:

Future value = Part payment × \frac{(1+r)^n-1}{r}

here, r is the interest rate

n is the duration

thus,

Future value = $1 × \frac{(1+0.0002192)^{7300}-1}{0.0002192}

or

Future value = $18033.56 ≈ $18,032

Hence, the correct answer is option (c) $18,032

7 0
3 years ago
Yeah me no understand -_- * cries on floor* ^-^
Alex73 [517]
5.75x12.4 = 71.3// Then 71.3 x 50 =3565

Explanation: multiply the money she makes per hour (5.75) by how many hours she works per week (12.4) ; then multiply that by how many weeks she worked (50).
4 0
3 years ago
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