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3 years ago

What times what equals 121?

Mathematics

2 answers:

Allisa [31]3 years ago

7 0

answer is eleven times eleven

andrew-mc [135]3 years ago

5 0

11 squared or 11*11
11,22,33,44,55,66,77,88,99,110,121

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Because of a mistake in packaging, a case of 16 bottles of wine contained 9 of brand A and 7 of brand B, each without labels.

attashe74 [19]

Answer:

a) The probability that all five are brand A is 0.0288

b) The probability that exactly two bottles are brand A is 0.0288

c) The probability that none of the bottles is brand A is 0.0048

Step-by-step explanation:

We have 9 bottles of brand A and 7 bottles of brand B.

The total of bottles is 16.

a) The probability that all five bottles are brand A is given by:

$P(5A)=\frac{9}{16} \frac{8}{15}\frac{7}{14} \frac{6}{13} \frac{5}{12}=\frac{3}{104}=0.0288$

b) Since we have 9 bottles of brand A we calculate the probability of picking two brand A bottles and the we calculate the probability of picking 3 brand B bottles:

$P(2A3B)=\frac{9}{16} \frac{8}{15}\frac{7}{14} \frac{6}{13} \frac{5}{12}=\frac{3}{104}=0.0288$

c) The probability that none of the bottles is brand A is the same as picking 5 brand B bottles:

$P(5B)=\frac{7}{16} \frac{6}{15}\frac{5}{14} \frac{4}{13} \frac{3}{12}=\frac{1}{208}=0.0048$

7 0

3 years ago

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Which expression is equivalent to (4 x cubed) (2 x) Superscript negative 4? StartFraction 1 Over 4 x EndFraction StartFraction 4

evablogger [386]

Option c: $\frac{1}{4 x}$

Step-by-step explanation:

The expression is $(4x^{3})(2x)^{-4}$

Applying the exponent rule, we have,

$\frac{4x^{3} }{(2x)^{4} }$

Multiplying the denominator,

$\frac{4x^{3} }{2^{4} x^{4} }$

Rewriting this expression,

$\frac{4x^{3} }{16 x^{4} }$

Cancelling the common terms, we have,

$\frac{1 }{4x }$

Thus, the expression equivalent to $(4x^{3})(2x)^{-4}$ is $\frac{1 }{4x }$

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Allushta [10]

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4 years ago

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lianna [129]

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