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BlackZzzverrR [31]
3 years ago
15

Hannah buys two CD's for $9.95 each and three CD's at $11.99 each. How much does she spend altogether?

Mathematics
2 answers:
motikmotik3 years ago
5 0
21.94 is the correct answer
olya-2409 [2.1K]3 years ago
4 0
Just simplify the following equation

2 (9.95) + 3 (11.99)
19.90 + 35.97
55.87 spent
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The following data values represent a population what is the variance of the values 17, 5 ,11, 1,11
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1) from smaller to higher:
1,5,11,11,17

2) find the mean
<span>1 + 5 + 11 + 11 + 17 = </span><span>45
</span>mean = 45/5 = 9

Variance = Σ(x- mean)²/(N-1)
[(1-9)² + (5-9)²+(11-9)² + (11-9)²+ (17-9)² ]'(5-1) =  38

Variance = 38

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Given the expression: 3x10 − 48x2
BartSMP [9]

Factorization involves representing an expression with smaller terms.

  • <em>When the greatest common factor is factored out, the equivalent expression is: </em>3x^2(x^8 - 16)<em>.</em>
  • <em>The complete factored expression is: </em>3x^2(x^4 - 4)(x^4 + 4)<em />

The expression is given as:

3x^{10} -48x^2

The GCF of 3x^{10} and 48x^2 is 3x^2.

So, we have:

3x^{10} -48x^2 = 3x^2 \times x^8 - 3x^2 \times 16

Factor out 3x^2

3x^{10} -48x^2 = 3x^2(x^8 - 16)

To factorize the expression completely, we express x^8 and 16 as squares.

So, we have:

3x^{10} -48x^2 = 3x^2((x^4)^2 - 4^2)

Apply difference of two squares

3x^{10} -48x^2 = 3x^2(x^4 - 4)(x^4 + 4)

So, the complete factor of 3x^{10} -48x^2 is 3x^2(x^4 - 4)(x^4 + 4)

Read more about factorization at:

brainly.com/question/19386208

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