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
Serggg [28]
3 years ago
13

Please explain how you got the answers also please. Thank you :)

Mathematics
1 answer:
Umnica [9.8K]3 years ago
7 0

Answer:

x = -2 —> y = 4

x= 0 —> y = 1

x= 3 —> y = 1/8

Step-by-step explanation:

<h3>X= –2</h3>

y = ( \frac{1}{2} ) ^{x}  \\ y = ( \frac{1}{2} ) ^{ - 2}  =(  \frac{2}{1} ) ^{2}  =  {2}^{2}  = 4

<h3>X= 0</h3>

y = ( \frac{1}{2} ) ^{x}  \\ y = ( \frac{1}{2} ) ^{ 0}  =1

<h3>X= 3</h3>

y = ( \frac{1}{2} ) ^{x}  \\ y = ( \frac{1}{2} ) ^{ 3}  =  \frac{ {1}^{3} }{ {2}^{3} } =  \frac{1}{8}

I hope I helped you^_^

You might be interested in
The square root of a negative number, such as StartRoot negative 144 EndRoot, is undefined. Explain why the square root of –x, S
IRINA_888 [86]

Answer:

see the explanation

Step-by-step explanation:

we have

f(x)=\sqrt{-x}

we know that

The radicand of the function cannot be a negative number

so

-x\geq 0

Solve for x

Multiply by -1 both sides

x\leq 0

The domain of the function f(x) is the interval -----> (-∞, 0]

The domain is all real numbers less than or equal to zero

The range of the function f(x) is the interval ----> [0,∞)

The range is all real numbers greater than or equal to zero

<em>Example</em>

For x=144

144\leq 0 ----> is not true

This value of x not satisfy the domain

substitute

f(x)=\sqrt{-144} ----> this value is undefined

For x=-144

-144\leq 0 ----> is true

This value of x satisfy the domain

substitute

f(x)=\sqrt{-(-144)}

f(x)=\sqrt{144}----> this value is defined

therefore

The function will be undefined for all those values of x that do not belong to the interval of the domain of the function

6 0
3 years ago
Read 2 more answers
Mitch is attending a 4-year college. As a freshman, he was approved for a 10-year, federal
stich3 [128]

Answer:

Interest capitalization occurs when unpaid interest is added to the principal amount of your student loan. When the interest on your federal student loan is not paid as it accrues (during periods when you are responsible for paying the interest), your lender may capitalize the unpaid interest.

Step-by-step explanation:

6 0
3 years ago
What is the exact volume of the cone?
victus00 [196]
Answer:  [D]:  " 196π  in.³  "  .
_____________________________________________________
Explanation:
_____________________________________________________
Given: radius, "r", equal 7 in.
Given: height, "h", equals 4 in.

Volume:  V = Base area * h ; 

The base area of a cone is a circle:  A = π * r²  = π* (7²) = 49π .

(NOTE: Since all answer choices given are in terms of "π" ; we will leave the units in terms of "π").

V = (Based area) * h = (49π  in.) * (4 in.) = (49*4)π  in.³
   =  196π  in.³  ; which is: Answer choice: [D] .
__________________________________________________________
8 0
4 years ago
Read 2 more answers
Shelly biked 21 miles in 4 hours. What is shellys average speed in miles per hour? At the same rate how many hours will it take
tekilochka [14]
21 divide by 4 is 5.25. She travels 5.25 miles per hour.  42 divide by 5.25 is 8. It would take 8 hours for Shelly to bike 42 miles.
6 0
3 years ago
Read 2 more answers
Compare 9/15 and 10/15
choli [55]

Answer: 9/15 < 10/15

Step-by-step explanation: 9/15 < 10/15

6 0
2 years ago
Other questions:
  • The polynomial 6x2 x − 15 has a factor of 2x − 3. what is the other factor? 3x − 5 3x 5 4x − 5 4x 5
    15·2 answers
  • Q ##10 please I need help with this
    15·1 answer
  • If someone could help me it would be awesome
    5·1 answer
  • 1. What concepts of functions can you associate with the pictures?​
    11·1 answer
  • Which expression is equivalent to (3x^2+4x-7)(x-2)
    15·2 answers
  • Someone please help me thank you
    12·1 answer
  • You are conducting a left-tailed test of a claim about a population mean when sigma is unknown with a sample size of 7.
    7·1 answer
  • 5 ft, 6 ft, 12 ft<br> Do these side lengths form an enclosed triangle?<br> Choose (YES or NO)
    12·1 answer
  • A car purchased for $15,000 depreciates under a straight-line method in the
    15·1 answer
  • Translate the sentence into an equation or formula. Seven less than the sum of p and t is as much as 6.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!