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Marizza181 [45]
3 years ago
13

Evaluate 9 − b 9−b9, minus, b when b = 8b=8b, equals, 8.

Mathematics
1 answer:
Vladimir79 [104]3 years ago
7 0

Answer:

the way you wrote the question is confusing. Please right it in better wording or with line breaks

Step-by-step explanation:

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Multiply (x-1)(x³+4x²+4x-1) and combine like terms. Explain how you reached your answer.
Hitman42 [59]

Answer:

x⁴+3x³ -5x +1

Step-by-step explanation:

To multiply this we are going to <u>multiply each term of the binomial by each term of the polynomial.</u>

(x-1)(x^{3}+4x^{2}  +4x-1)\\=x^4+4x^3+4x^2-x -x^3-4x^2-4x+1

Now we are going to <u>combine like terms (this means we are going to sum up terms with the same exponent)</u>

x^4+4x^3+4x^2-x -x^3-4x^2-4x+1 = x^4 +(4x^3-x^3)+(4x^2-4x^2)+(-x-4x)+1\\=x^4+3x^3-5x+1

Thus, the answer is x⁴+3x³ -5x +1

5 0
3 years ago
in the school cafeteria students chose their lunch from 3 sandwiches, 3 soups, 4 salads, and 2 drinks. how many different lunche
Vesna [10]

Answer:

Answer:

3

×

3

×

4

×

2

=

72

Explanation:

Let's look at the 3 sandwiches and 3 soups first and then expand the calculation. There are 9 ways I can have one of the sandwiches and 1 of the soups:

⎛

⎜

⎜

⎜

⎜

⎝

0

Soup 1

Soup 2

Soup 3

Sandwich 1

1

2

3

Sandwich 2

4

5

6

Sandwich 3

7

8

9

⎞

⎟

⎟

⎟

⎟

⎠

And so we can see that we multiply the number of sandwiches and the number of soups to get the total number of ways to get one of each.

The same works for more categories of choices, and so we multiply the 3 sandwiches, the 3 soups, 4 salads, and 2 drinks to get:

3

×

3

×

4

×

2

=

72


7 0
3 years ago
Click on the words to go to the picture
Sati [7]
The answer is 2,187 you keep multiplying the exponets
8 0
3 years ago
The distribution of reading scale scores in the 4th grade at Truman Elementary School was approximately normal with mean = 221 a
liraira [26]

Answer:

221

Step-by-step explanation:

3 0
3 years ago
Ana bought 324 gallons of milk last month at $3.30 per gallon and ​ 314 gallons of milk at $3.20 per gallon this month.
kipiarov [429]

Answer:

$2,074

Step-by-step explanation:

324 x 3.30 + 314 x 3.20= $2,074

6 0
3 years ago
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