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kogti [31]
3 years ago
10

A rectangular jewelry box costs $125 to gold plate. Calculate the cost of gold plating a box which is similar in shape and that

holds 8 times as much.
the answer is not $8,000 or $64,000. help please!
Mathematics
2 answers:
scZoUnD [109]3 years ago
4 0
The answer should be 1000$. I’m not positive but if it’s eight times the size, then you would multiply the price by 8.
shtirl [24]3 years ago
4 0
1000 dollars id assume 
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Which of the following equations is equivalent to x - y = 6?
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2x-y=6
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4 years ago
Using the Quadratic Formula, which of the following is the solution to the quadratic equation x2 - 3x - 28 = 0?
algol13

The answer is (x+7)(x-4)

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8 0
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Teen Court is a juvenile diversion program designed to circumvent the formal processing of first-time juvenile offenders within
valentinak56 [21]

Answer:

Z-statistic = 1.4017 < 1.96 at 0.05 level of significance

Null hypothesis is accepted

The data suggest that the true proportion of Teen Court individuals who recidivate during the specified follow-up period differs from the proportion of Department of Juvenile Services individuals

Step-by-step explanation:

<u><em>Step(i)</em></u>:-

Given first sample size (n₁ ) = 57

Of the 57 Teen Court individuals, 18 subsequently recidivated during the 18-month follow-up period

First sample proportion

                                   p^{-} _{1} = \frac{x_{1} }{n_{1} } = \frac{18}{57} =0.3157

Second sample proportion

                               p^{-} _{2} = \frac{x_{2} }{n_{2} } = \frac{11}{54} =0.2037

Null Hypothesis : p₁⁻ = p₂⁻

Alternative Hypothesis :  p₁⁻ ≠ p₂⁻

<u><em>Step(ii)</em></u>:-

Test statistic

         Z = \frac{p_{1} ^{-} -p^{-} _{2} }{\sqrt{PQ(\frac{1}{n_{1} } +\frac{1}{n_{2} } )} }

        where

                   P = \frac{n_{1}p^{-} _{1} +n_{2} p^{-} _{2}  }{n_{1} +n_{2} }

                   

              P = \frac{57 X0.3157+0.2037X54}{54+57} = 0.2612

             Q = 1 - P = 1 - 0.2612 = 0.7387

         

             Z = \frac{0.3157-0.2037}{\sqrt{0.2612 X0.7387 (\frac{1}{57} +\frac{1}{54} )} }

           Z  =    1.4017

Level of significance ∝ =0.05

The tabulated value Z₀.₀₅ = 1.96

Z-statistic = 1.4017 < 1.96 at 0.05 level of significance

Null hypothesis is accepted

The data suggest that the true proportion of Teen Court individuals who recidivate during the specified follow-up period differs from the proportion of Department of Juvenile Services individuals

7 0
3 years ago
Help ASAP!!! Thank you!!
Ira Lisetskai [31]

Answer:

20) 8 years

21) Tori could paint the room alone for 3 hours, Sydney could paint the room alone for 5 hours.

Step-by-step explanation:

A = P ( 1 + r/n ) ^ nt.

8000 = 5000 ( 1 + 6%/4) ^ 4t

8000 = 5000 ( 1 + 0.06/4) ^4t

8000 = 5000 ( 1 + 0.015 ) ^ 4t

8000 = 5000 ( 1.015 ) ^ 4t

8000 / 5000 = ( 4.06 / 4 ) ^ 4t

8/5 = ( 203/200 ) ^ 4t

b = aᶜ ⇔ logₐb = c

7 0
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What is the value of x?
kondor19780726 [428]
Cos x = sin (90 - x)

cos 63 = sin (90 - 63)

cos 63 = sin 27

x = 27
8 0
4 years ago
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