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Mkey [24]
2 years ago
10

257 orang ahli Kelab Dart membuat kutipan RM25 setiap orang. 45% daripada jumlah kutipan itu dibelanjakan untuk jamuan akhir tah

un, 65% daripada bakinya untuk cenderamata dan RM550 untuk bayaran tempahan jersi kelab. Berapakah baki wang yang tinggal
Mathematics
1 answer:
almond37 [142]2 years ago
8 0

Answer:

RM 687.3

Step-by-step explanation:

Number of members = 257

Each member makes = RM 25

So, total money = 257×25= RM 6425

1- 45 % of 6425 = 45 /100 × 6425=RM 2891.25

So, RM 2891.25  was spent for the year-end banquet. Hence remaining money after this expenditure = 6425-2891.25= RM 3533.75

2- 65 % of this remaining money = 65 /100 × 3533.75= RM 2296.45

So, RM 2296.5 were spent on souvenirs. Hence remaining amount = 3533.75 - 2296.45 =  RM 1237.3

3- Out of this remaining money RM 550 were spent for club jersey booking fees.

So, amount left = 1237.3 - 550 = RM 687.3

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Past studies indicate that about 60 percent of the trees in a forested region are classified as softwood. A botanist studying th
alukav5142 [94]

Answer:

1. If it is true that 60 percent of the trees in a forested region are classified as softwood, 0.015 is the probability of obtaining a population proportion greater than 0.6.

Step-by-step explanation:

Hello!

The historical information indicates that 60% of the forest trees are classified as softwood.

A botanist thinks that the proportion might be greater than 60%, so he tested his belief obtaining:

H₀: p = 0.60

H₁: p > 0.60

p-value: 0.015

You need to interpret this p-value. Little reminder:

The p-value is defined as the probability corresponding to the calculated statistic if possible under the null hypothesis. It represents the % of size n samples from a population with proportion p=p₀, which will produce a measure that provides evidence as (or stronger) than the current sample that p is not equal to p₀.

The correct answer is:

1. If it is true that 60 percent of the trees in a forested region are classified as softwood, 0.015 is the probability of obtaining a population proportion greater than 0.6.

I hope this helps!

8 0
2 years ago
If you are one of the first 100 people to join a new health club, you are charged a joining fee of $49. Otherwise, you are charg
Drupady [299]

Answer:

a) Total cost = 49 + 38.75m

b) Total cost = 149 + 38.75m

c) The graphs of the lines are parallel and both has slope of - 2.5

d)Difference in total cost = $132.5

Step-by-step explanation:

Total cost , TC = Initial membership fee + monthly charges

a) TC = 49 + 38.75m

b)TC = 149 + 38.75m

d) 149 + 38.75(6months) = 381.5

49 + 38.75(12months) = 514

Difference in total cost = 514 -381.5 = $132.5

7 0
2 years ago
jim says that the output of the floor function is the number before the decimal point in the input. For what domain is Jim’s sta
Mila [183]

Jim’s statement is correct for all numbers greater than or equal to 0. It does not work for negative numbers. For example, the floor of –3.5 is –4, where –4 is not equal to –3, the number before the decimal point. Hope this helps!

Thanks!

-Charlie

7 0
2 years ago
Read 2 more answers
Suppose a research paper states that the distribution of the daily sea-ice advance/retreat from each sensor is similar and is ap
strojnjashka [21]

Answer:

The value of the parameter is λ is 0.03692

Step-by-step explanation:

Consider the provided function.

f(x) = 0.5\lambda e^{-\lambda |x|} for −∞ < x < ∞.

It is given that standard deviation is given as 38.3 km.

Now we need to calculate the value of parameter λ.

The general formula for the probability density function of the double exponential distribution is: f(x)=\frac{e^{-|\frac{x-\mu}{\beta}|}}{2\beta}

Where μ is the location parameter and β is the scale parameter.

Compare the provided equation with the above formula we get.

\lambda=\frac{1}{\beta} and μ = 0.

Standard deviation = √2β

S.D=\sqrt{2} \beta\\\beta=\frac{38.3}{\sqrt{2}}\\\beta=27.08219

Now substitute the value of β in \lambda=\frac{1}{\beta}.

\lambda=\frac{1}{27.08219}=0.03692

Hence, the value of the parameter is λ is 0.03692

7 0
2 years ago
Suppose the distributor charges the artist a $40.00 cost for distribution, and the streaming services pays $4.00 per unit. (Note
denpristay [2]

Given :

Suppose the distributor charges the artist a $40.00 cost for distribution, and the streaming services pays $4.00 per unit

Step-by-step explanation:  

Cost of distribution is the fixed cost . y intercept is the fixed cost.

Distributor charge is 40. So y intercept = 40

Payment per unit is the slope that is 4 per unit.

slope =4

Slope intercept form is y=mx+b

Where m is the slope and b is the y intercept.

y intercept b=40. and slope m=4

So the equation of the line is y=4x+40

The graph of the line is included below

To find the number of streams that pay for distributor charges , we set

the equation equal to 0 and solve for x

4x+40=0\\4x=-40\\divide   by 4\\x=-10

10 streams you pay for distributor charges.

Given profit is 750,000. so y=750,000

We need to find out x the number of streams

y=4x+40\\750000=4x+40\\\\Subtract 40\\divide 4\\x=187,490

we know that 1 unit = one thousand streams

so , Approximately 187 streams

Answer:

y intercept = 40

slope =4

y=4x+40

10 streams you pay for distributor charges.

187 streams to get  profit $750,000

5 0
2 years ago
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