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Wittaler [7]
2 years ago
9

Determine the equation of the circle graphed below. (help fast ez pts)

Mathematics
1 answer:
ikadub [295]2 years ago
4 0

Answer:

(x + 4)² + (y + 7)² = 4

Step-by-step explanation:

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A sample of 64 observations has been selected to test whether the population mean is smaller than 15. The sample showed an avera
KengaRu [80]

Answer:

Test statistic = - 0.851063

- 2.520463

Step-by-step explanation:

H0 : μ ≥ 15

H1 : μ < 15

Sample mean, xbar = 14.5

Sample standard deviation, s = 4.7

Sample size = 64

Teat statistic :

(xbar - μ) ÷ (s/√(n))

(14.5 - 15) ÷ (4.7/√(64))

= - 0.851063

The critical value at α = 0.05

Using the T - distribution :

Degree of freedom, df = 64 - 1 = 63

Tcritical(0.05, 63) = 1.6694

Test statistic - critical value

-0.851063 - 1.6694

= - 2.520463

8 0
3 years ago
A sociologist wishes to test . the sociologist takes a sample of size 100 and calculates a standardized test statistic of -2.34.
mariarad [96]

Answer:

One-sample Z-test

Step-by-step explanation:

As the sample size is greater than 30, assuming the data is a simple random sample, and that the data has a normal distribution, the sociologist should conduct a one-sample z-test to calculate the p-value.

3 0
2 years ago
Please help
Anna [14]

Answer:

Idon'tknowdaanswertothatquestionsorry.

Step-by-step explanation:

7 0
2 years ago
I need to solve the equation
Andrej [43]

Answer:

c = -3

Step-by-step explanation:

7 = -3c -2

3c = -2 -7

3c = -9

c = -3

3 0
2 years ago
Read 2 more answers
Find the sum and the product of the roots of the equation: y^2+41y−371=0
frosja888 [35]

Answer:

y

=

−

41

−

√

3165

2

,

−

41

+

√

3165

2

Decimal Form:

y

=

7.62916635

…

,

−

48.62916635

…

Step-by-step explanation:

6 0
3 years ago
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