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3 years ago

If g(x) = 2 − 1, what is g(−2.3)?

Mathematics

2 answers:

jeyben [28]3 years ago

8 0

Answer:g(x) = - 5.6

Step-by-step explanation: first I presume the expression is

g(x) = 2x− 1

Given that g(-2.3)

Substituting this value for x in the expression we have

g(x) = 2(-2.3) − 1

g(x) = - 4.6-1

g(x) = - 5.6

Nadusha1986 [10]3 years ago

6 0

So first you'll substitute x for -2.3 then you'll subtract 2 by 1 which equals 1 then you'll divide -2.3 on both sides which will equal g = -1.3

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Answer this number pattern: Last one. Really need this to be answered!<br> 1,8,27,64_,_,_

Lunna [17]

The numbers to complete the pattern are 125, 216, 343. The complete pattern is 1, 8, 27, 64, 125, 216, 343. Hope this helps.

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3 years ago

Answer question 1-15 by 6pm

alina1380 [7]

Answer:

Step-by-step explanation:

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3 years ago

Aimee is in charge of buying tickets for a trip to the movies. She can buy tickets at the theater or online. At the theater, 8 t

inessss [21]

Answer:

Aimee can save $24 by buying tickets at the lower price that is at the theater.

Step-by-step explanation:

First, you need to find the amount she would spent by buying tickets at the theater and online by using a rule of three:

Theater:

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x=(60*24)/8=180

Online:

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x ←24

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Now, you need to calculate the difference:

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3 0

3 years ago

A person purchased a slot machine and tested it by playing it 1,137 times. There are 10 different categories of outcomes, includ

ivann1987 [24]

Answer:

$p_v= P(\chi^2_{9}>11.517)=0.2419$

And on this case if we see the significance level given $\alpha=0.1$ we see that $p_v>alpha$ so we fail to reject the null hypothesis that the observed outcomes agree with the expected frequencies at 10% of significance.

Step-by-step explanation:

A chi-square goodness of fit test determines if a sample data obtained fit to a specified population.

$p_v$ represent the p value for the test

O= obserbed values

E= expected values

The system of hypothesis for this case are:

Null hypothesis: $O_i = E_i[/tex[Alternative hypothesis: [tex]O_i \neq E_i$

The statistic to check the hypothesis is given by:

$\chi^2 =\sum_{i=1}^n \frac{(O_i -E_i)^2}{E_i}$

On this case after calculate the statistic they got: $\chi^2 = 11.517$

And in order to calculate the p value we need to find first the degrees of freedom given by:

$df=n-1=10-1=9$ , where k represent the number of levels (on this cas we have 10 categories)

And in order to calculate the p value we need to calculate the following probability:

$p_v= P(\chi^2_{9}>11.517)=0.2419$

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4 years ago

The y-intercept of the line whose equation is 2x + 5y = 8

Ymorist [56]

2x+5y=8
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3 years ago