Select the correct answer from each drop-down menu.

Mathematics

1 answer:

nataly862011 [7]2 years ago

4 0

Answer:

Hello! the answer is CD is 17,0 (-2,19)

You might be interested in

The product of the consecutive integers is 72. The equation xx+1) = 72 represents the situation where z represents

Dominik [7]

Answer:

2+2x-72=0

Step-by-step explanation:

6 0

2 years ago

Can any y’all help me? I got what x is but idk y. Thxxxxxx

kotegsom [21]

Answer:

y should be 5, when u solve for the angles u get 68+87+c=180, if c is y^2 then y is 5

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers

Construct the confidence interval for the population mean mu. c = 0.90, x = 16.9, s = 9.0, and n = 45. A 90% confidence inte

Georgia [21]

Answer:

The 90% confidence interval for population mean is $14.7 < \mu < 19.1$

Step-by-step explanation:

From the question we are told that

The sample mean is $\= x = 16.9$

The confidence level is $C = 0.90$

The sample size is $n = 45$

The standard deviation

Now given that the confidence level is 0.90 the level of significance is mathematically evaluated as

$\alpha = 1-0.90$

$\alpha = 0.10$

Next we obtain the critical value of $\frac{\alpha }{2}$ from the standardized normal distribution table. The values is $Z_{\frac{\alpha }{2} } = 1.645$

The reason we are obtaining critical values for $\frac{\alpha }{2}$ instead of that of $\alpha$ is because $\alpha$ represents the area under the normal curve where the confidence level 1 - $\alpha$ (90%) did not cover which include both the left and right tail while $\frac{\alpha }{2}$ is just considering the area of one tail which is what we required calculate the margin of error