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True [87]
3 years ago
13

HELP I need this for a quiz the screenshot is there

Mathematics
1 answer:
Setler79 [48]3 years ago
4 0

Answer:

The value is -30

Step-by-step explanation:

Plug -6 in for x in the equation:

3sqrt-6(-6)+4(-6)

-6-4*6

-6-24

-30

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A model aeroplane costs £3.40. James gets a special deal. When he buys two airplane, he saves 20% of the total price. How much d
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I am taking out a loan of $6300. How much
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2 years ago
4x^2+3x+2 and 7x^2+7x+3.<br> find the sum.
N76 [4]

Answer:

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Step-by-step explanation:

(4x^2 + 3x + 2) + (7x^2 + 7x + 3)

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6 0
2 years ago
Explain why the difference in match win probabilities is significant. (ii) Explain why the number of challenges remaining in the
Vesna [10]

Answer:

Step-by-step explanation:

The number of observations in model 1 are more compared with model 2 and model 3. And, the coefficient values increased from model 1 to model 3. Moreover, the standard error values are increased. Hence, the test statistic value increases. Therefore, the variable “difference in match win probabilities” is significant.

State the null and alternative Hypotheses:

Null Hypothesis:

H0: The difference in match win probabilities is not significant.

Alternative Hypothesis:

H1: The difference in match win probabilities is significant.

From the given information (model 3), the coefficient of “The difference in match win probabilities” is -0.550 and the corresponding standard error is 0.240. The sample size is 1973.

The test statistic is -2.2917 and it is calculated below: on the picture attached.

Statistics homework question answer, step 1, image 1

The number of sample observations is n=1973 and consider the level of significance as 0.05.

The degree of freedom is, n – 1 = 1973–1 = 1972.

3 0
3 years ago
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