All categories

3 years ago

Which pair of undefined terms is used to define a ray?

Mathematics

2 answers:

Kryger [21]3 years ago

7 0

The answer to this problem is line segment

morpeh [17]3 years ago

5 0

Answer:

D. point and line

Step-by-step explanation:

Edgunuity

You might be interested in

3. Uniform A package delivery service breaks up its shipping charges into weight classes, where the package weights are uniforml

Tamiku [17]

Answer:

a) 50% of packages in this class would weigh less than 11 lbs.

b) 25% would weigh more than 11.5 lbs.

c) The average weight for a package in this class is 11 lbs.

Step-by-step explanation:

An uniform probability is a case of probability in which each outcome is equally as likely.

For this situation, we have a lower limit of the distribution that we call a and an upper limit that we call b.

The probability that we find a value X lower than x is given by the following formula.

$P(X \leq x) = \frac{x - a}{b-a}$

For this problem, we have that:

a. Suppose one of the shipping classes is 10 to 12 lbs. What proportion of packages in this class would weigh less than 11 lbs?

Uniform distribution from 10 lbs to 12 lbs, this means that $a = 10, b = 12$ .

The answer is $P(X \leq 11)$ .

$P(X \leq 11) = \frac{11 - 10}{12-10} = 0.5$

50% of packages in this class would weigh less than 11 lbs.

b. What proportion would weigh more than 11.5 lbs?

Either a package weighs 11.5 lbs or less, or it weighs more than 11.5 lbs. The sum of the probabilities of these events is decimal 1. So:

$P(X \leq 11.5) + P(X > 11.5) = 1$

$P(X > 11.5) = 1 - P(X \leq 11.5)$

$P(X > 11.5) = 1 - \frac{11.5-10}{12-10}$

$P(X > 11.5) = 0.25$

25% would weigh more than 11.5 lbs.

c. What would the average weight for a package in this class be?

The mean M of the uniform distribution is:

$M = \frac{a+b}{2}$

$M = \frac{10+12}{2} = 11$

The average weight for a package in this class is 11 lbs.

5 0

3 years ago

What does pi mean? I foro=got..

Furkat [3]

Answer:

3.14159265359

Step-by-step explanation:

the sixteenth letter of the Greek alphabet ( Π, π ), transliterated as ‘p.’.

the numerical value of pi.

osmotic pressure.

5 0

3 years ago

What is the y-value of the y-intercept of the line?

Oksi-84 [34.3K]

Answer:

Step-by-step explanation:

you have to see exactly where the point is on the y-intercept.

8 0

4 years ago

in the figure below trianglePQM and triangleQRP are right triangles. the measure of lineQM is 6 and the measure of lineQP is 8.

Kipish [7]

Answer:

Option 4 is correct. The length of PR is 6.4 units.

Step-by-step explanation:

From the given figure it is noticed that the triangle PQR and triangle MQR.

Let the length of PR be x.

Pythagoras formula

$hypotenuse^2=base^2+perpendicular^2$

Use pythagoras formula for triangle PQM.

$PM^2=QM^2+PQ^2$

$PM^2=(6)^2+(8)^2$

$PM^2=36+64$

$PM^2=100$

$PM=10$

The value of PM is 10. The length of PR is x, so the length of MR is (10-x).

Use pythagoras formula for triangle PQR.

$PQ^2=QR^2+PR^2$

$(8)^2=QR^2+x^2$

$64-x^2=QR^2$ .....(1)

Use pythagoras formula for triangle MQR.

$MQ^2=QR^2+MR^2$

$(6)^2=QR^2+(10-x)^2$

$36=QR^2+x^2-20x+100$

$36-x^2+20x-100=QR^2$ .... (2)

From equation (1) and (2) we get

$36-x^2+20x-100=64-x^2$

$20x-64=64$

$20x=128$

$x=6.4$

Therefore length of PR is 6.4 units and option 4 is correct.

3 0

3 years ago

Leila says that 75% of a number will always be greater than 50% of any other number.

Gemiola [76]

That is not correct, it depends on the numbers you are referring to. For instance, 75% of 100 is 75, but 50% of 1000 is 500, so in this case the 50% of a number is higher than 75% of another number. Although, is true that 75% is higher than 50% of the same number always.

3 0

3 years ago