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3 years ago

billy invests £800 for 5 yerrs in a savings account. by the end of the 5 yers he has received a total of £96 siple interest.

Mathematics

1 answer:

Tresset [83]3 years ago

6 0

Answer:

i font knowwww

Step-by-step explanation:

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There are 21 mathematic majors and 129 computer science majors at a college. A) How many ways are there to pick 4 representative

kirza4 [7]

Answer: 1,733,760

Step-by-step explanation:

The number of combinations of selecting m things from n things is given by :-

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

Given : There are 21 mathematics majors and 129 computer science majors at a college.

Then, the number of ways to pick 4 representatives, so that 2 are mathematics majors and the other 2 are computer science majors :-

$^{21}C_2\times^{129}C_2\\\\=\dfrac{21!}{2!(21-2)!}\times\dfrac{129!}{2!(129-2)!}\\\\=\dfrac{21\times20\times19!}{2\times19!}\times\dfrac{129\times128\times127!}{2\times127!}\\\\=210\times8256= 1733760$

Hence, the number of ways to pick 4 representatives, so that 2 are mathematics majors and the other 2 are computer science majors =1,733,760

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3 years ago

Which equation demonstrates the distributive property?

yulyashka [42]

Answer:

the answer is D.

Step-by-step explanation:

distribute property requires you to multiply the number outside the parenthesis in everything in the parenthesis. hope this helps.

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3 years ago

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The sum of these fractions is between which two whole numbers? 3 4/6 1 3/6 4&5 5&6 6&7 or 7&8

umka21 [38]

3 4/6 + 1 3/6 = 4 7/6 = 5 1/6
5 1/6 is between 5 and 6

answer is 5&6 (second choice)

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3 years ago

Simplify the following expression: (−1)(−7)(4) 12 28 −12 −28

Alex_Xolod [135]

28 is the correct answer!!!!!

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3 years ago

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(-2.66) multiplied by (18.44)

Stells [14]

Answer:

I think the answer you're looking for is -49.05

(longer version: -49.0504)

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3 years ago