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Andreas93 [3]
3 years ago
9

I need more help with 21 questions

Mathematics
2 answers:
Mariulka [41]3 years ago
7 0

Answer:

45

Step-by-step explanation:

9 ÷ 1/5

9 × 5/1

9 × 5

45

vovikov84 [41]3 years ago
5 0
45 that's the correct answer lol
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ycow [4]

Answer: B. 350.

Step-by-step explanation:

Given: Total number of fluorescent colors = 7

Total number of pastel colors = 5

Since , he want three fluorescent colors and two pastel colors.

Number of ways to select r things out of n things = ^nC_r=\dfrac{n!}{r!(n-r)!}

Number of ways to choose colors = ^7C_3\times\ ^5C_2

=\dfrac{7!}{3!4!}\times\dfrac{5!}{2!3!}\\\\=\dfrac{7\times6\times5\times4!}{3\times2\times1\times4!}\times\dfrac{5\times4\times3!}{2\times3!}\\\\=350

Hence, the correct option is B. 350.

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2 years ago
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Tanya [424]

Answer:

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Step-by-step explanation:

6 0
3 years ago
One factor of the polynomial is . which expression represents the other factor, or factors, of the polynomial?
stich3 [128]

Your question was incomplete. Please refer the content below:

One factor of a polynomial is (x+1) . which expression represents the other factor, or factors, of the polynomial 2 x² + 3 x + 1 ?

We get that if one factor of the polynomial 2 x² + 3 x + 1 is (x+1), then the other factor is (2x+1).

Factor means that we have to split an expression into multiple values and make the power of the variable linear.

For a quadratic equation, there will be 2 factors.

We have the polynomial

2 x² + 3 x + 1

Using middle term splitting, we get that:

= 2 x² + 2 x + x + 1

Taking common factor:

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

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

Therefore, we get that if one factor of the polynomial 2 x² + 3 x + 1 is (x+1), then the other factor is (2x+1).

Learn more about polynomials here:

brainly.com/question/4142886

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7 0
1 year ago
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A data table shows that as the input (x) increases by 1, the output (y) decreases by 7. When x is 0, y is –2. What is the equati
Savatey [412]
X   0   1    2    ...
y  -2  -9 -16...
(y) decreases by 7/<span> (x) increases by 1, so slope =-7,
y- int=-2
this is equation c) y=-7x-2</span>
7 0
3 years ago
Which expression shows the prime factorization of 120?
Ganezh [65]

Answer:

a

Step-by-step explanation:

7 0
3 years ago
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