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slamgirl [31]
3 years ago
11

HELP ASAP MARKJNG AS BRAINLIST

Mathematics
1 answer:
kati45 [8]3 years ago
6 0

Answer:

114°

Step-by-step explanation:

By property of intersecting chords inside a circle.

\because \angle \: 1 =  \frac{1}{2} (x + y) \\  \\  \therefore \: \angle \: 1 =  \frac{1}{2} (96 + 132)  \\  \\  \therefore \: \angle \: 1 =  \frac{1}{2} \times 228\\  \\   \huge \red { \boxed{\therefore \: \angle \: 1 = 114 \degree}}

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Which ratio is equivalent to 1 to 8?<br> 7 to 14<br> 7 to 9<br> 6 to 41<br> 6 to 48
Ivan

6 to 48 simplified

it becomes 1 to 8

so the answer is 6 to 48

plz mark as brainliest

5 0
2 years ago
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A temperature of -3°F is how many degrees below the freezing<br> temperature of water?
Feliz [49]

Answer:

Step-by-step explanation:

6

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3 years ago
A researcher records the amount of time (in minutes) that parent child pairs spend on social networking sites to test whether th
ki77a [65]

Answer:

(a) A matched pair design is used to perform the test.

(b) Each sample is of size 30.

(c) The null hypothesis is rejected.

(d) The effect size of the test is medium.

Step-by-step explanation:

A statistical experiment is performed to determine whether the amount of time (in minutes) that parent-child pairs spend on social networking sites to test show any generational differences.

<u>Given</u>:

MD = -42 minutes

t₍₂₉₎ = 4.021

p < 0.05

d = 0.49

The hypothesis is:

<em>H₀</em>: There is no difference between the means, i.e. <em>μ₁</em> = <em>μ₂</em>.

<em>Hₐ</em>: There is a significant difference between the means, i.e. <em>μ₁</em> ≠ <em>μ₂</em>.

(a)

A matched pair design is used to perform the test.

In a matched pair design the participant of the two groups are related in some way. For example, the same sample is tested before and after applying the treatment.

In this case the matched are pairs are of children and their parents. And the treatment is the amount of time spent on social networking sites.

(b)

The degrees of freedom of a matched pair design is:

df = n - 1

29 = n - 1

n = 29 + 1

n = 30

Thus, each sample is of size 30.

(c)

The <em>p</em>-value of the test statistic is < 0.05.

If the <em>p</em>-value is less than the significance level <em>α </em>(say, 0.05) then the null hypothesis is rejected and vise-versa.

Since <em>p</em> < 0.05 the null hypothesis is rejected concluding that there is a significant difference between the amount of time spent on social networking sites by parents and children.

(d)

The estimated value of Cohen's d is, <em>d</em> = 0.49.

A Cohen's d value between the range 0.50 to 0.80 is considered as medium.

Thus, the effect size of the test is medium.

3 0
3 years ago
Write the relation as a set of ordered pairs.
atroni [7]
Not 100% sure but I think it’s b. hope this helps!
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3 years ago
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Round 4.88 to the nearest tenth
Minchanka [31]
4.88 rounded to the nearest tenth is 4.9
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3 years ago
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