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
rosijanka [135]
3 years ago
10

Find the domain of the function. (Enter your answer using interval notation.) f(x) = 7 − 1 2 x if x ≤ 2 8x − 4 if x > 2 g

Mathematics
1 answer:
11Alexandr11 [23.1K]3 years ago
4 0

Answer\left ( -\infty,2\right ]

Step-by-step explanation:

Given

(i)

F(x)=7-12x

and x\leq 2

Domain is \left ( -\infty,2\right ]

(ii)F(x)=8x-4

x>2

Domain is (2,\infty)

You might be interested in
a car traveled 36 miles in 45 minutes. the car traveled at a constant speed. it the car continues to travel at this rate which e
Alchen [17]
Y = 48 becuase you travelled the amount of minuets 45 x
8 0
3 years ago
The measure of angle A is 15°, and the length of side
dangina [55]

Answer:

Part 1) AB=30.9\ units

Part 2) AC=29.9\ units

Step-by-step explanation:

The picture of the question in the attached figure

Part 1

Find the length side AB

we know that

sin(A)=\frac{BC}{AB} ----> by SOH (opposite side divided by the hypotenuse)

substitute the given values

sin(15^o)=\frac{8}{AB}

solve for AB

AB=\frac{8}{sin(15^o)}=30.9\ units

Part 2

Find the length side AC

we know that

tan(A)=\frac{BC}{AC} ----> by TOA (opposite side divided by the adjacent side)

substitute the given values

tan(15^o)=\frac{8}{AC}

solve for AC

AC=\frac{8}{tan(15^o)}=29.9\ units

8 0
3 years ago
I’ll give someone brainliest if they answer this
Dimas [21]

Answer:

2. The answer should be the last one.

3. The answer should be the first three.

Step-by-step explanation:

<u>Question 2</u>

KE = (1/2)mv²

2KE = mv²

v² = 2KE/m

v = ±√(2KE/m)

Therefore the answer should be the last one.

<u>Question 3</u>

b^(1/2) * b^(5/2)

Remember that the <u><em>product rule</em></u> states that b^x * b^y = b^(x+y)

So this means b^(1/2) * b^(5/2) = b^(1/2+5/2) = b^(6/2) = b^3

Also remember that the <u><em>power rule</em></u> states that √b = b^(1/2)

so this means b^(6/2) can also be written as (√b)^6

Therefore the answer should be the first three.

<em>If you want to double check all of your answers, just replace b with a number (for example, 2), and plug all of the choices into the calculator. Just </em><u><em>make sure</em></u><em> you are </em><u><em>very careful</em></u><em> when typing into the calculator.</em>

3 0
3 years ago
Sally has decided to spend some time over two days soving math problems. She figures that on the first day she wil be able to so
erastova [34]

A system of equations for this would be

19x + 11y = 273

and

12x + 17y = 283.

X is the amount of minutes to solve one long division problem and y is the amount of minutes to solve a graphing problem.

How To Solve This System of Equations.

Multiply both by 17 and 11 respectively for them to have the greatest common factor for y. So now both equations are:

323x + 187y= 4641

132x + 187y= 3113.

Subtract both equations and you have left:

191x = 1528.

Divide both sides by 191 and you find x.

X = 8.

Answer

It takes Sally 8 minutes to do one Long Division Problem.


Hope this helped. ;)

6 0
4 years ago
Read 2 more answers
30 POINTS FOR ANSWER!!<br> 2 numbers sum 120 and product 400<br> INSTANT ANSWER NEEDED
OLga [1]
I think the problem is
2X+20=400
You just have to answer I think X and X equals that two numbers I’m not 100% sure but I’m trying to help
4 0
3 years ago
Other questions:
  • Can anyone help me with this please.
    8·1 answer
  • Geoffrey wrote the following paragraph proof showing that rectangles are parallelograms with congruent diagonals.
    8·2 answers
  • 3. Your teacher wants to make sure everyone has a pencil for class. She has 104 students in all of her classes. The office gave
    15·2 answers
  • Two lawn care companies are competing for a landscaping contract. Company A charges a $250 monthly consulting fee plus $10 per s
    7·1 answer
  • Please help!! Thank you !!
    15·1 answer
  • Which theorem, term, or corollary is represented by the picture? The bold lines in the pictures represent the hypothesis of the
    9·1 answer
  • Can someone help me with this please
    14·2 answers
  • Which expression is equivalent to ( 11 x − 8 ) + ( 7 − 4 x ) ?
    14·1 answer
  • 4(4 - x) - 8(-2 + 4x)
    15·1 answer
  • QUICK PLEASE. A person invest $2000 at 4.5% simple interest for two years. make sure to show all your work.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!