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3 years ago

Expand and Simplify (2x + 1)(x - 2)(x + 3)

Mathematics

1 answer:

lesantik [10]3 years ago

5 0

Answer:

Answer is =2x^3+3x^2-11x-6

Step-by-step explanation:

First of all multiply first and second bracket.

=x(2x+1) -2(2x+1)

=2x^2+x-4x-2

=2x^2-3x-2

Now multiply 2x^2-3x-2 with (x+3)

=x(2x^2-3x-2) +3(2x^2-3x-2)

=2x^3-3x^2-2x+6x^2-9x-6

=2x^3+3x^2-11x-6

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marshall27 [118]

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3 years ago

the night before halloween kyle sorted 1000 pieces of candy into bags with each bag containing 12 pieces of candy. if kyle is al

liq [111]

Answer: 4

Step-by-step explanation:

12x83= 996

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996+4= 1000

so Kyle can have 4 pieces of candy.

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4 years ago

Four cups of a salad blend containing 40% spinach is mixed with an unknown amount of a salad blend containg 55% spinach. The res

Klio2033 [76]

Answer: 12 cups of salad blend are in the resulting mixture

Explanation:

Since we have given that

4 cups of a salad blend contains 40% spinach

Using mixture allegation method, we get that

8 cups of a salad blend contains 55% spinach as shown in the figure below.

Now, we need to find the number of cups of salad in the resulting mixture,

$0.4\times 4+0.55\times 8=0.5\times x\\\\1.6+4.4=0.5x\\\\6=0.5x\\\\\frac{6}{0.5}=x\\\\12=x$

Hence, 12 cups of salad blend are in the resulting mixture .

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4 years ago

Here are the percents of the popular

kvv77 [185]

Answer: 57.4

Step-by-step explanation:

First order the numbers from the smallest to the largest:

49.6, 55.1, 57.4, 49.7, 61.1, 43.4, 60.7, 50.1, 50.7, 58.8, 53.9, 43.2, 49.2, 47.9, 51.2

to:

43.2, 43.4, 47.9, 49.2, 49.6, 49.7, 50.1, 50.7, 51.2, 53.9, 55.1, 57.4, 58.8, 60.7, 61.1.

The position of third quartile is:

= (N + 1) * 3/4

= (15 + 1) * 3/4

= 12th position

That number is:

= 57.4

8 0

3 years ago