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4 years ago

Will mark brainliest! IMPORTANT

Mathematics

1 answer:

enot [183]4 years ago

4 0

Answer:

P(x) = 3.88x -1750

Step-by-step explanation:

Profit is the difference between revenue and cost.

P(x) = R(x) - C(x)

P(x) = 4.1x -(0.22x +1750) . . . . . substitute the given expressions

P(x) = 3.88x -1750 . . . . . . . . . . simplify

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A well respected wild life researcher recently conducted a

Marina CMI [18]

Answer:

Claim : men weigh of wild jackalopes is 69.9

The null hypothesis : H0 : μ = 69.9

Alternative hypothesis : H1 : μ ≠ 69.9

Test statistic = −2.447085

P value = 0.0174

Conclusion :

Fail to Reject the Null hypothesis

Step-by-step explanation:

From the question given :

The claim is that : mean weight of wild jackalopes is still the same as 10 years with a mean weight of 69.9 lbs.

The null hypothesis : H0 : μ = 69.9

Alternative hypothesis : H1 : μ ≠ 69.9

Using calculator :

Sample mean (x) = 66

Sample standard deviation (s) = 12.345

The test statistic t :

(x - μ) / (s/√n)

n = sample size = 60

(66 - 69.9) / (12.345 / √60)

t = −2.447085

P value at α 0.01, df = 59 is 0.0174

Since the p value is > 0.01, the result is not significant at 0.01. Therefore, we fail to reject the Null

7 0

3 years ago

A combination lock has a code consisting of 3 numbers, each of which can be 0 to 39, with numbers repeated. Jillian says that th

mestny [16]

Answer:

There are 64,000 possible codes. Jillian is incorrect, since he added the possible options in each trial, instead of multiplied them(he did 40+40+40 instead of 40*40*40).

Step-by-step explanation:

From 0 to 39, there are 40 numbers.

The code has three values:

V1 - V2 - V3

When we have n trials with m possible options, the total number of opitons is:

$T = m^{n}$

In this question:

3 trials(values), with 40 options. So

$T = 40^{3} = 64000$

There are 64,000 possible codes. Jillian is incorrect, since he added the possible options in each trial, instead of multiplied them(he did 40+40+40 instead of 40*40*40).

7 0

3 years ago

Read 2 more answers

Help plsss fast plsplspsls

Bess [88]

The first answer is c
42cm(2)

4 0

3 years ago

Need help im struggling

alexira [117]

I believe the answer will be 23in

3 0

3 years ago

Survey: On free time 90 students like watching TV, 20 like watching TV but not reading, 80 like reading, 40 do not like watching

Dvinal [7]

Answer:

50 %

Step-by-step explanation:

From the diagram attached,

Percentage of total students that like watching television = [(WnR)/μ]×100......... Equation 1

The number of students that like watching television and reading (WnR) = 70

The total number of students (μ) = 40+20+70+10

The total number of students (μ) = 140

Substitute these values into equation 1

Percentage of total students that like watching television = (70/140)×100

Percentage of total students that like watching television = 1/2(100)

Percentage of total students that like watching television = 50 %

5 0

3 years ago