How would you write the name of a ray differently than the name of a line? What symbols would you use?

1 answer:

3 0

For a line you would draw a straight line with arrows on each end and for a ray you would draw a straight line with an arrow on only one end (depends on which way ray is pointing)

You might be interested in

Of 1,050 randomly selected adults, 360 identified themselves as manual laborers, 280 identified themselves as non-manual wage ea

garik1379 [7]

Answer:

We can claim with 95% confidence that the proportion of executives that prefer trucks is between 19.2% and 32.8%.

Step-by-step explanation:

We have a sample of executives, of size n=160, and the proportion that prefer trucks is 26%.

We have to calculate a 95% confidence interval for the proportion.

The sample proportion is p=0.26.

The standard error of the proportion is:

$\sigma_p=\sqrt{\dfrac{p(1-p)}{n}}=\sqrt{\dfrac{0.26*0.74}{160}}\\\\\\ \sigma_p=\sqrt{0.0012}=0.0347$

The critical z-value for a 95% confidence interval is z=1.96.

The margin of error (MOE) can be calculated as:

$MOE=z\cdot \sigma_p=1.96 \cdot 0.0347=0.068$

Then, the lower and upper bounds of the confidence interval are:

$LL=p-z \cdot \sigma_p = 0.26-0.068=0.192\\\\UL=p+z \cdot \sigma_p = 0.26+0.068=0.328$

The 95% confidence interval for the population proportion is (0.192, 0.328).

We can claim with 95% confidence that the proportion of executives that prefer trucks is between 19.2% and 32.8%.

3 0

3 years ago

Ed intends to roll a six-sided number cube 100 times. What probability model can he use to predict whether or not each roll will

Stells [14]

The answer is Each roll has a 0.333 probability of being composite.

<em>(I just took the test, B was the answer)</em>

8 0

3 years ago

Read 2 more answers

Mr. Brust tried to simplify the following but made a really common mistake in the problem. Identify the mistake, then show the c

pychu [463]

Answer:

The correct answer is 10+6p

Step-by-step explanation:

The mistake is that for the first step instead of distributing 2 to 3p and 1 they added 8+2 first. your actually supposed to distribute and get, 8+6p+2, then combine like terms and get 10+6p

3 0

3 years ago

Read 2 more answers

SOMEONE PLS HELP THIS MAKES NO SENSE

abruzzese [7]

I think it is B, since x goes right 4.5 times and y goes up 3 times.

3 0

2 years ago

Read 2 more answers

A 14-ounce bottle of Nesquik chocolate milk cost $1.89. What is the cost per ounce?

CaHeK987 [17]

Answer: