Mathematics, 05.05.2020 00:57 tatyanaknight122

Explain how to perform a two-sample z-test for the difference between two population proportions.

Answers: 1

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Answers

Answer from: Quest

answer:

payment just for service

→

87.12

payment for service including tax

→

94.09

explanation:

service only with 20% tip

→

72.6

(

100

)

87.12

in the opening of the question the word 'service' is associated only with the pretax value.

the closing part of the question asks: how much did she pay for the

service

−−−−−−

so technically the answer is

→

72.6

(

100

)

87.12

however, the intention of the question provider may have been that your answer is to be

87.12

(

100

)

94.09

to 2 decimal places.

payment just for service

→

87.12

payment for service including tax

→

94.09

tony b

mar 21, 2017

answer:

trying to explain it another way

explanation:

service charge

→

72.60

20% tip

100

72.60

14.52

−−−−−−

←

add

87.12

tax

100

87.12

6.97

−−−−−

←

add

94.09

related questions

Answer from: Quest

Answer: d. 39 cmin the diagram, the approximate length of the minor arc de is 39 centimetres.step-by-step explanation: the formula for the length of an arc in a circle is as displayed below.let the length of the minor arc de = xx = 2( pi )r × angle of sector / 360°from this, we will substitute the values given from the problem into the formula to obtain the length of the minor arc de.x = 2( pi )r × angle of sector / 360°r = radius = 25cmpi as an approximate value = 3.14angle of sector = 120°x = 2( 3.14 )( 25 ) × 120° / 360°x = 157 × 1 / 4x = 39.25x = 39 ( rounded to the nearest whole number as an approximate value )
Ineed as soon as possible ! what is the approximate length of the minor arc de

Ineed as soon as possible ! what is the approximate length of the minor arc de

Answer from: Quest

The answer you are looking for is right in front of you it’s c. 3/20

Answer from: Quest

answer: our required factorization will be

(3x+4)(x²-5)

step-by-step explanation:

since we have given that

$3x^3+4x^2-15x-20$

now, we will write it as :

$=\left(3x^3+4x^2\right)+\left(-15x-20\right)$

$\mathrm{factor\: out\: }-5\mathrm{\: from\: }-15x-20\mathrm{: \quad }-5\left(3x+4\right)$

so, we get

5(3x+4)

similarly,

$\mathrm{factor\: out\: }x^2\mathrm{\: from\: }3x^3+4x^2\mathrm{: \quad }x^2\left(3x+4\right)$

here, we get,

2(3x+4)

together it becomes,

$-5\left(3x+4\right)+x^2\left(3x+4\right)\\\\=\left(3x+4\right)\left(x^2-5\right)$

hence, our required factorization will be

(3x+4)(x²-5)

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