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kykrilka [37]
3 years ago
9

Julie spent $57.83 for her party. She spent some of the money on decorations and $39.59 on food. How much did Julie spend on dec

orations? A. $97.42 B. $28.34 C. $22.36 D. $18.24
Mathematics
2 answers:
AysviL [449]3 years ago
5 0
--------------------------------
Total Amount
--------------------------------
$57.83

--------------------------------
Amount spent on food
--------------------------------
$39.59

--------------------------------
Amount spent on decoration
--------------------------------
$57.83 - $39.59 = $18.24

--------------------------------
Answer: $18.24 (Answer D)
--------------------------------
Stels [109]3 years ago
4 0
She spent 18.24$ on decorations for her party
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Answer:

With garlic​ treatment, the mean change in LDL cholesterol is not greater than 0.

Step-by-step explanation:

The dependent <em>t</em>-test (also known as the paired <em>t</em>-test or paired samples <em>t</em>-test) compares the two means associated groups to conclude if there is a statistically significant difference amid these two means.

In this case a paired <em>t</em>-test is used to determine the effectiveness of garlic for lowering​ cholesterol.

A random sample of 81 subjects were treated with raw garlic. Cholesterol levels were measured before and after the treatment.

The hypothesis for the test can be defined as follows:

<em>H₀</em>: With garlic​ treatment, the mean change in LDL cholesterol is not greater than 0, i.e. <em>d</em> ≤ 0.

<em>Hₐ</em>: With garlic​ treatment, the mean change in LDL cholesterol is greater than 0, i.e. <em>d</em> > 0.

The information provided is:

\bar d=0.40\\SD_{d}=16.2\\\alpha =0.01

Compute the test statistic value as follows:

t=\frac{\bar d}{SD_{d}/\sqrt{n}}\\\\=\frac{0.40}{16.2/\sqrt{81}}\\\\=0.22

The test statistic value is 0.22.

Decision rule:

If the <em>p</em>-value of the test is less than the significance level then the null hypothesis will be rejected and vice-versa.

Compute the <em>p</em>-value of the test as follows:

p-value=P(t_{n-1}>0.22)\\=P(t_{80}>0.22)\\=0.4132

*Use a <em>t</em>-table.

The <em>p</em>-value of the test is 0.4132.

<em>p-</em>value= 0.4132 > <em>α</em> = 0.01

The null hypothesis was failed to be rejected.

Thus, it can be concluded that with garlic​ treatment, the mean change in LDL cholesterol is not greater than 0.

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Answer:

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Step-by-step explanation:

The ratio of the similar triangles is

14       49

---- = ------

2          x

Using cross products

14x = 2*49

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14x/14 = 98/7

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3 years ago
A 1350 kg car travels at 12 m/s. What is it's kinetic energy
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KE = 1/2(1350 * 12^2)
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Jamal stands on a dock 1.5 meters above the surface of the water. A trout swims 4.8 meters below Jamal. What is the vertical dis
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Answer:

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But the vertical distance between Jamal and the trout is 4.8 meters only.

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