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Roman55 [17]
3 years ago
5

In simplest radical form, what are the solutions to the quadratic equation 0 = –3x2 – 4x + 5

Mathematics
1 answer:
Nat2105 [25]3 years ago
7 0

Answer:

0.79, - 2.12

Step-by-step explanation:

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Rita is selecting a sandwich at the deli. The deli has four types of meat, three types of cheese and two types of bread. A delux
zalisa [80]

Answer:

24 possible dishes

Step-by-step explanation:

Given

Total

Meat = 4

Cheese = 3

Bread = 2

Selection

Meat = 1

Cheese =2

Bread = 1

Required

Determine the number of possible combo

Rita wants to select 1 of 4 meat types,

So, the number of selections is: ^4C_1

Rita wants to select 2 of 3 cheese types,

So, the number of selections is: ^3C_2

Rita wants to select 1 of 2 cheese types,

So, the number of selections is: ^2C_1

The total number of selections is:

Total = ^4C_1 * ^3C_2 * ^2C_1

Using

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

We have:

Total = \frac{4!}{(4-1)!1!} * \frac{3!}{(3-2)!2!} * \frac{2!}{(2-1)!1!}

Total = \frac{4!}{3!1!} * \frac{3!}{1!2!} * \frac{2!}{(1!1!}

Total = \frac{4*3!}{3!*1} * \frac{3*2!}{1*2!} * \frac{2*1}{1*1}

Total = 4* 3 * 2

Total = 24

<em>Hence, there are 24 possible dishes</em>

4 0
3 years ago
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