Ask question

Ask question

All categories

2 years ago

9

The graph of a power function in the form y = abˣ is shown below. Which of the following must be true about the values of a and

b
a < 0 and b is odd
a > 0 and b is odd
a < 0 and b is even
a > 0 and b is even

2 answers:

lesya [120]2 years ago

8 0

Answer:

B

Step-by-step explanation:

luda_lava [24]2 years ago

8 0

Answer:

sorry i dont know this answer

You might be interested in

Customers arrive at a movie theater at the advertised movie time only to find that they have to sit through several previews and

balu736 [363]

Answer:

(a) The sample size required is 43.

(b) The sample size required is 62.

Step-by-step explanation:

The (1 - α) % confidence interval for population mean is:

$CI=\bar x\pm z_{\alpha/2}\ \frac{\sigma}{\sqrt{n}}$

The margin of error for this interval is:

$MOE=z_{\alpha/2}\ \frac{\sigma}{\sqrt{n}}$

(a)

The information provided is:

<em>σ</em> = 4 minutes

MOE = 72 seconds = 1.2 minutes

Confidence level = 95%

α = 5%

Compute the critical value of z for α = 5% as follows:

$z_{\alpha/2}=z_{0.05/2}=z_{0.025}=1.96$

*Use a z-table.

Compute the sample size required as follows:

$MOE=z_{\alpha/2}\ \frac{\sigma}{\sqrt{n}}$

$n=[\frac{z_{\alpha/2}\times \sigma}{MOE} ]^{2}$

$=[\frac{1.96\times 4}{1.2}]^{2}\\\\=42.684\\\\\approx 43$

Thus, the sample size required is 43.

(b)

The information provided is:

<em>σ</em> = 4 minutes

MOE = 1 minute

Confidence level = 95%

α = 5%

Compute the critical value of z for α = 5% as follows:

$z_{\alpha/2}=z_{0.05/2}=z_{0.025}=1.96$

*Use a z-table.

Compute the sample size required as follows:

$MOE=z_{\alpha/2}\ \frac{\sigma}{\sqrt{n}}$

$n=[\frac{z_{\alpha/2}\times \sigma}{MOE} ]^{2}$

$=[\frac{1.96\times 4}{1}]^{2}\\\\=61.4656\\\\\approx 62$

Thus, the sample size required is 62.

3 0

2 years ago

Margo won 24 out of her last 36 tennis matches.At this rate,predict how many matches she would win out of her next 27 matches ?

adell [148]

27 out of 39 win i guess If u think this is right ok

7 0

3 years ago

Simplify. I'm don't know how to type it so I am going to take a picture.

Vesnalui [34]

Answer:2/1

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Find the sum 5/14 + 4/5

AnnyKZ [126]

Answer:

81/70

Step-by-step explanation:

5/14+4/5=25/70+56/70=81/70

3 0

3 years ago

Read 2 more answers

A rectangle has a length of 2 m and a width of 40 cm what is the perimeter of the rectangle ( show your work)

sweet [91]

Answer:

0.05 im pretty sure to my calcutor

Step-by-step explanation:

4 0

3 years ago