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Genrish500 [490]
3 years ago
7

A number cube is rolled 35 times and the results are recorded in the table.A goodness-of-fit chi-square test is to be used to te

st the null hypothesis that the cube is fair. At a significance level of α = 0.05, what is the value of chi-square and the appropriate conclusion?
Mathematics
1 answer:
denpristay [2]3 years ago
7 0

Answer:

Where's the table we can go off of??

Step-by-step explanation:

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At this point, brian had lost 7 points.
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40 POINTS AND BRAINLIEST!! I NEED THIS DONE ASAP
inna [77]

(a) Answer: One solution.

Explanation: two lines that have same slope with opposite sign will necessarily cross each other at a single point, as one is "pointing uphill" and the other "downhill."

(b)  Answer: Infinitely many solutions.

Explanation:

2x + 3y = 5.5

4x + 6y = 11   | divide by 2

-->

2x + 3y = 5.5

2x + 3y = 5.5

--> equations are identical.

2x + 3y = 2x + 3y

so any (x,y) will satisfy this equation. This means infinitely many solutions.

(c) Answer: One solution

Explanation:

Continuing the two lines it becomes obvious they will cross at one point (the solution)

(d) Answer: No solution

Explanation: If the two lines are parallel, they will never cross (by definition of "parallel"). Therefore there will be no solution to the corresponding linear system.


8 0
3 years ago
A city's population increases by 5% every year. If its population today is 300,000, write a function that models the population
ratelena [41]

Answer:

f(x) = 300,000(1.05)^x

Step-by-step explanation:

Use the exponential growth equation:

f(x) = a(1 + r)^x

Plug in 300,000 as a, since it is the original population:

f(x) = 300,000(1 + r)^x

The city's population is growing at 5% each year, so plug in 0.05 as r:

f(x) = 300,000(1 + 0.05)^x

f(x) = 300,000(1.05)^x

So, the function for the population growth is f(x) = 300,000(1.05)^x

6 0
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How to graph -5\3 on a number line
Alex_Xolod [135]
<span>Number line is a way of expressing an integer into a line. 
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Now let’s create line with 0 in the center. Pls. see the attached image for the number line presentation.

The answer is -2</span><span>

</span>



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3 years ago
A scuba diver descends from the surface at a rate of -38 feet per minute. What is the position of the scuba diver relative to th
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Answer:

-114 (The answer should be negative.)

Step-by-step explanation:

3 x -38 = -114

4 0
1 year ago
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