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Anna [14]
3 years ago
5

Please help me, ASAP tyyy

Mathematics
1 answer:
Phantasy [73]3 years ago
6 0

Answer:

531\:\text{students}

Step-by-step explanation:

This question implies a constant rate or proportion to estimate the number of students who may choose chocolate from a larger sample size. Therefore, we can set up the following proportion and solve:

\frac{59}{200}=\frac{x}{1800},\\\\x=\frac{1800\cdot 59}{200},\\\\x=\boxed{531}

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Evaluate the given expression. Subscript 5 Baseline P Subscript 2 a. 40 c. 25 b. 32 d. 20
Leto [7]

Answer:

d. 20

Step-by-step explanation:

The given question implies 5 permutation 2, i.e _{5}P_{2}.

But,

_{n}P_{r} = \frac{n!}{(n - r)!}

So that for _{5}P_{2}, n = 5 and r = 2.

_{5}P_{2} = \frac{5!}{(5 - 2)!}

     = \frac{5!}{3!}

    = \frac{5*4*3*2!}{3*2!}

Cancel out 3 and 2 with respect to the numerator and denominator.

_{5}P_{2} = 5 * 4

     = 20

Therefore,

_{5}P_{2} = 20

So that the correct option is D.

6 0
3 years ago
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HELP ASAP WILL MARK BRAINLIEST!!!!
Gnesinka [82]
E=mc2 (5-2)x+99.03 with the addition of beans
4 0
3 years ago
1222 multiplied by 101 minus 10
alina1380 [7]

Answer:123412

Step-by-step explanation:

1222 times 10 is 123422 subtract 10 is 123412 :D

3 0
3 years ago
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Prove Forall x elementof Z, x^2 - 5x - 1 is odd.
Diano4ka-milaya [45]

Answer with Step-by-step explanation:

Let Z be a set of integers

We have to prove that x^2-5x-1 is odd for all value of x \inZ.

There are two cases

1.When x is an odd integer number

2.when x is even integer number

1.When x is an odd integer  number

When x is positive odd integer

Then x^2  is positive odd number (because square of odd positive number is always positive an odd number )

5x is also odd number

-5x -1 = -even number

Suppose x=3

Then -15-1=-16

Odd number - even number=Odd number

Hence ,x^2-5x-1 is an odd number .

When x is negative odd number

Then  x square is positive odd number  and 5x is negative odd term term

Therefore,odd number + odd number -1=Even  number -1=Odd number

Hence x^2-5x-1 is an odd number.

2.When  x is an even number

When x is positive even number

x square is positive even number  and 5x is positive even number

Even number -Even number -1 =Even number -odd number =Odd number

Suppose x=4

x^2-5x-1=16-20-1=-5=Odd number

When x is negative even number

Then x square is positive even number  and 5x is negative even number

x^2-5x-1=Even number +Even number -1=Even number -1=Odd number

Hence, for all elements of Zx^2-5x-1is odd.

7 0
3 years ago
A credit card company offers a cash back program on transactions. For every transaction over​ $100 the customer gets ​$3 back. F
Elena L [17]
The first equation is $3 times 9 = $27 the next equation iis $1 times 2 = $1
So you do 9 transactions over $100 and 2 transactions of $100 or lower. 


5 0
3 years ago
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