1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Bond [772]
3 years ago
14

We could use all the help we can get. I can't find the Khan academy videos associated with my work and I'm struggling. any help

is appreciatled

Mathematics
1 answer:
vladimir1956 [14]3 years ago
6 0

Answer:

#7.

The domain is {-3,0,4}

the range is {-5,0,1,7}

not a function

#8

D={3,6,12,18}

R={5,7,9,10}

not a function

Step-by-step explanation:

First, 7.

the domain is the all of the x values, in numerical order, listed once, even if it repeats.

D={-3,0,4} (notice how -3 is listed twice; despite that, we only list it once)  

the range is all of the y values, in numerical order, listed once, even if the numbers repeat

R={-5,0,1,7}

A function can have the range (y values) repeat, however, the domain (x values) cannot repeat.

Therefore, this is not a function, since -3 is listed twice.

For 8.

The domain, can be listed as

D={3,6,12,18}

And the range as

R={5,7,9,10}

Notice how it says that if 6 is the input (x), the output (y) can be 5 or 10. Since we said the domain CANNOT repeat, this isn't a function.

Hope this helps!

You might be interested in
Help please thankssss
Bad White [126]
The answer to your question is r=6
8 0
1 year ago
Explain how you can use a basic subtraction fact to help you solve 98-30.
solniwko [45]
You do what I’d 9-3 , 8-0 , then combined it and you will get the right answer
6 0
3 years ago
Equations
sergij07 [2.7K]

Answer:

2x+12=24

first you subtract 12 from both sides

2x+12=24

-12. -12

The 12-12 should cancel itself, the rest of the equation you bring down to get

2x=12 (because 24-12=12)


Now you have 2x=12.
you then divide 2x by both sides.

2x=12

/2x=/2x

The 2x/2x cancels itself out so you then solve for 12/2x.

For this you just divide 12/2 which is 6!

x= 6 is your final answer.
to check this equation you can plug your number back into x to see if it is true! 2(6)+12=24.
6 times 2 is 12 and 12+12 is 24 so your answer (6) is true!


hope this helps! :D

4 0
3 years ago
Read 2 more answers
Add<br><br> -3/8 + 5/4<br><br> Simplify your answer. Type a fraction or an interger.
sdas [7]
Beautiful your answer is 7/8
7 0
3 years ago
Read 2 more answers
There are values of t so that sin t=.35 and cos t=.6
NISA [10]

Recall the fundamental rule of trig:

\sin^2(x)+\cos^2(x)=1 \quad\forall x \in \mathbb{R}

So, there exists an angle t such that

(0.6,0.35)=(\sin(t),\cos(t))

if and only if

\sin^2(t)+\cos^2(t)=0.6^2+0.35^2=1

Working out the numbers, we get

0.6^2+0.35^2=0.36+0.1225=0.4825\neq 1

So, there doesn't exist a number t such that

(0.6,0.35)=(\sin(t),\cos(t))

7 0
3 years ago
Other questions:
  • Supplementary angles are two angles whose measures have a sum of___.
    13·2 answers
  • The number of parking tickets issued in a certain city on
    9·1 answer
  • Math To Do, i-Pizzdy
    12·1 answer
  • You're choosing between two car rental companies. Company A charges an initial fee of $15 with $.25 per mile, while Company B on
    15·2 answers
  • Determine the sample space of all of the possible outcomes one of choosing a card numbered 1, 2, 3, or 4, and a blue, green, or
    5·1 answer
  • When you multiply 2 decimals, how do you know where to place the comma in the product?
    6·2 answers
  • get 10,000 point//// Let be the world population as of March 23, 2013. Approximately, = 7,073,981,143.
    12·1 answer
  • A group of three friends
    10·1 answer
  • What is the missing fifth term in the<br> pattern below?<br> 1,8, 27, 64, ___
    11·1 answer
  • Please help giving brainlist
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!