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3 years ago

Explain how rays AB and AC form both a line and an angle.

Mathematics

2 answers:

natima [27]3 years ago

7 0

When two rays are put together it forms an angle (because of the three points)

myrzilka [38]3 years ago

7 0

Sample Response: An angle is defined as two rays with a common endpoint, so CAB (or BAC) is an angle. A line is described as an infinite set of points that extend forever in either direction, which these rays also do.

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Help me please!

telo118 [61]

Answer:

$f^{-1}(6) = 50$

Step-by-step explanation:

Given

$f(x) = \sqrt{2x} - 4$

Required

Find $f^{-1}(6)$

First, we calculate the inverse function

$f(x) = \sqrt{2x} - 4$

Express f(x) as y

$y = \sqrt{2x} - 4$

Swap the positions of x and y

$x = \sqrt{2y} - 4$

Solve for y: Add 4 to both sides

$4 + x = \sqrt{2y} - 4+4$

$4 + x = \sqrt{2y}$

Square both sides

$(4 + x)^2 = 2y$

Divide both sides by 2

$y = \frac{(4 + x)^2}{2}$

Express y as an inverse function

$f^{-1}(x) = \frac{(4 + x)^2}{2}$

Next, solve for: $f^{-1}(6)$

Substitute 6 for x

$f^{-1}(6) = \frac{(4 + 6)^2}{2}$

$f^{-1}(6) = \frac{(10)^2}{2}$

$f^{-1}(6) = \frac{100}{2}$

$f^{-1}(6) = 50$

7 0

3 years ago

You are getting ready for a family vacation. you decide to download as many movies as possible before leaving for the road trip.

PilotLPTM [1.2K]

Here is the solution for the given problem above.
Given: 1 2/5 hour = time it takes to download a movie
5 1/4 hours = total hours for the download
? = number of movies downloaded
First, we need to simplify 1 and 2/5 hour, which is 1.4 hour, and 5 1/4 is 5.25 hours. Next, to get the number of movies downloaded, we divide 5.25 by 1.4 and the result is 3.75. Round this off to a whole number and we get 4. Approximately, you were able to download 4 MOVIES. Hope this helps.

6 0

3 years ago

What is the domain and range of the relation shown in the table?

zysi [14]

Domain is all the x values (2,-1,4,-3)and range is the y values (0,4,2,0)

7 0

4 years ago

There are 15 books on a shelf. 9 of these books are new. The rest of them are used. what is the ratio of all books

Andrew [12]

Answer:

a)15:6 b)2:3

Step-by-step explanation:

No. of used books=15-9=6

a) 15:6

6:9

2:3

6 0

3 years ago

Solve algebra 2 bju press

Nitella [24]

Remark

It looks like all you want is question 6. If that is the case, there are two ways to do it.

Algebra

First answer

abs(b - 22) = 5 Equate to + 5

b - 22 = 5 Add 22 to both sides.

b = 5 + 22

b = 27

Second Answer

Equate to - 5

b - 22 = -5

b = 22 - 5

b = 17

Method Two

Graph the question

The graph y = abs(b - 22) is shown below in red.

The values of y when y =5 are shown in blue.

5 0

3 years ago