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3 years ago

All of the following numbers are rational except _____.

Mathematics

2 answers:

Svetlanka [38]3 years ago

7 0

Answer:

√17

Step-by-step explanation:

√121 = 11

√25 = 5

√1.44 = 1.2

√17 is an irrational number/

Paha777 [63]3 years ago

6 0

Answer:

D 1.44

Step-by-step explanation:

the answer is the last one 1.44

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Angie and Kenny play online video games. Angie buys 1 software package and 3 months of game play. Kenny buys 2 software packages

irga5000 [103]

Answer:

$10

Step-by-step explanation:

cost of one month of game play = x

1(35) + 3x + 2(35) + 5x = 185

35 + 70 + 8x = 185

105 + 8x = 185

-105 -105

8x = 80

/8. /8

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1 year ago

Determine the domain of the function. <br> f(x) = 13/3-x

Sedbober [7]

Hi..... the domain(D) will be:

$\mathtt {f(x)=\dfrac{13}{3-x}\rightarrow \boxed{D=\{x\in R\,|\,x\neq 3\}}}$

Thanks... :)

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3 years ago

Solve for x: 2x-4/5=x+4

shepuryov [24]

2x-4=5x+20

-3x=24

x=-8

3 0

3 years ago

Read 2 more answers

Confidence Interval Application Many people feel that the drying of pavement marking paint is much too slow. You spend several d

djyliett [7]

Answer:

The sample size is $n =33$

Step-by-step explanation:

From the question we are told that

The margin of error is E = 1.5 seconds

The standard deviation is s = 4 seconds

Given that the confidence level is 97% then the level of significance is mathematically represented as

$\alpha =( 100 -97)\%$

=> $\alpha = 0.03$

Generally from the normal distribution table the critical value of $\frac{\alpha }{2}$ is

$Z_{\frac{\alpha }{2} } = 2.17$

Generally the sample size is mathematically represented as

$n =[ \frac{Z_{\frac{\sigma }{2 } } * \sigma }{E} ]^2$

=> $n =[ \frac{2.17 * 4 }{1.5} ]^2$

=> $n =33$

7 0

3 years ago

The table represents some points on the graph of a linear function.

Sunny_sXe [5.5K]

Answer:

B. $-\frac{9}{2}$

Step-by-step explanation:

Rate of change of y with respect to x, can be calculated using any two of the pairs of values of the table, say, (-2, 12) and (0, 3).

Rate of change = $\frac{y_2 - y_1}{x_2 - x_1}$

Let,

$(-2, 12) = (x_1, y_1)$

$(0, 3) = (x_2, y_2)$

Plug in the values

Rate of change = $\frac{3 - 12}{0 - (-2)} = \frac{-9}{2} = -\frac{9}{2}$

7 0

3 years ago