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3 years ago

G(t)=−9t−4 g ( ? ) = 23

Mathematics

1 answer:

borishaifa [10]3 years ago

6 0

Answer:

g(- 3) = 23

Step-by-step explanation:

We require to find the value of t so that g(t) = 23

Equate g(t) to 23 and solve for t, that is

- 9t - 4 = 23 ( add 4 to both sides )

- 9t = 27 ( divide both sides by - 9 )

t = - 3

Hence g(- 3) = 23

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Suppose that you play the game with three different friends separately with the following results: Friend A chose scissors 100 t

Yanka [14]

Answer:

Friend A

$\hat p_A= \frac{100}{400}=0.25$

$z=\frac{0.25 -0.333}{\sqrt{\frac{0.333(1-0.333)}{400}}}\approx -3.47$

Friend B

$\hat p_B= \frac{20}{120}=0.167$

$z=\frac{0.167 -0.333}{\sqrt{\frac{0.333(1-0.333)}{120}}}\approx -3.80$

Friend C

$\hat p_C= \frac{65}{300}=0.217$

$z=\frac{0.217-0.333}{\sqrt{\frac{0.333(1-0.333)}{300}}}\approx -4.17$

So then the best solution for this case would be:

-3.47 (100 out of 400; 25%), -3.80 (20 out of 120; 16.7%), -4.17 (65 out of 300; 21.7%)

Step-by-step explanation:

Data given and notation

n represent the random sample taken

X represent the number of scissors selected for each friend

$\hat p=\frac{X}{n}$ estimated proportion of scissors selected for each friend

$p_o=\frac{1}{3}=0.333$ is the value that we want to test

$\alpha$ represent the significance level

z would represent the statistic (variable of interest)

$p_v$ represent the p value (variable of interest)

Concepts and formulas to use

We need to conduct a hypothesis in order to test the claim that the proportion that the friend will pick scissors is less than 1/3 or 0.333, the system of hypothesis would be:

Null hypothesis: $p\geq 0.333$

Alternative hypothesis: $p < 0.333$

When we conduct a proportion test we need to use the z statistic, and the is given by:

$z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}}$ (1)

The One-Sample Proportion Test is used to assess whether a population proportion $\hat p$ is significantly different from a hypothesized value $p_o$ .

Calculate the statistic

Since we have all the info requires we can replace in formula (1) like this:

Friend A

$\hat p_A= \frac{100}{400}=0.25$

$z=\frac{0.25 -0.333}{\sqrt{\frac{0.333(1-0.333)}{400}}}\approx -3.47$

Friend B

$\hat p_B= \frac{20}{120}=0.167$

$z=\frac{0.167 -0.333}{\sqrt{\frac{0.333(1-0.333)}{120}}}\approx -3.80$

Friend C

$\hat p_C= \frac{65}{300}=0.217$

$z=\frac{0.217-0.333}{\sqrt{\frac{0.333(1-0.333)}{300}}}\approx -4.17$

So then the best solution for this case would be:

-3.47 (100 out of 400; 25%), -3.80 (20 out of 120; 16.7%), -4.17 (65 out of 300; 21.7%)

6 0

4 years ago

Negative 91 is less than or equal to 10 times a number minus 1

Akimi4 [234]

Answer:

-91 <= 10 x n - 1

Step-by-step explanation:

7 0

4 years ago

Is the function linear, exponential or neither ? Help me please

Svetradugi [14.3K]

Hello! :)

$\large\boxed{\text{Linear.}}$

The function pictured is a straight line, so it has a constant slope for all x values.

A function that has the same slope on its domain and when graphed is a straight line is a linear function.

8 0

3 years ago

Does anyone know this math problem?

jonny [76]

If you were to buy a two day ticket for $68 every 3 weeks for all four seasons then you would spend $1156 overall. By buying a gold pass for $120 for all four seasons you would save $1036. For sure get the Gold Pass no questions asked.

6 0

3 years ago

Can someone help? using soh cah toa find length of OP round to the nearest tenth of a foot?

Marina CMI [18]

Answer:

95.5

Step-by-step explanation:

you can using toa

tan = opp/adj

tan 37° = 72/x

x = 72/ tan 37°

x = 95.547 feet

x = 95.5

6 0

3 years ago

Read 2 more answers