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
Leona [35]
3 years ago
5

Which statement is true about the domain of y = 3(2^-x)? Explain.

Mathematics
1 answer:
SVEN [57.7K]3 years ago
8 0
We want to determine the domain of {y=3 \cdot 2^{-x}=3 \cdot ({2^{-1}})^x=3 \cdot ({ \frac{1}{2}})^x

any function of the form y=f(x)=a \cdot b^x is called an "exponential function",
the only condition is that b is positive and different from 1, and a is a nonzero real number.

The domain of such functions is all real numbers.

That is for any x, the expression <span>3(2^-x) "makes sense".



Answer: </span><span>The domain is all real numbers</span>
You might be interested in
PLEASE SOLVE FOR X WITH A SHORT STEP BY STEP
valkas [14]

Answer: 90 - 15-57 = 18 18 is your answer hope this helped

Step-by-step explanation: plz make brainly

7 0
2 years ago
Read 2 more answers
Margo spends 0.25 of her paycheck on a new dress, 1/8 of her paycheck on shoes, and $24 on a birthday present. If she spent $60
horsena [70]
Margos paycheck was $96 in total
8 0
3 years ago
Read 2 more answers
In the 7th grade, 150 of the students are attending the dance. If this is 62.5% of the entire grade, how many 7th graders are th
JulijaS [17]

Answer:

244 students.

Step-by-step explanation:

Okay, so. We know 150 people of the 7th grade is coming and 62.5% is the entire of the 7th graders coming. We would multiply.

150 * 62.5% = 93.75

We would round it up. It is over 5, so it would be 94 students. Then we would add

150 + 94 = 244

There are 244 students in 7th grade.

3 0
3 years ago
Evaluate the expression:<br> 9 +7(5-2)<br> Using PEDMAS<br><br> yall i suck at math
ANEK [815]

Hello! :)

Let's use PEMDAS.

Parenthesis

Exponents

Multiplication

Division

Addition

Subtraction

(5-2) = 3 Do parenthesis.

7 × 3 = 21 Multiply with what we got after doing the parenthesis.

9 + 21 = 30 Add with what we had left.

30

Hope this helps!

ELITEDIPER

5 0
3 years ago
Can someone help me with this please
e-lub [12.9K]

Answer: y=-2x+6

Step-by-step explanation:

m=\frac{6-2}{0-2}=\frac{4}{-2}=-2

So y=2x+b. We can substitute (0, 6) to get:

6 = 2(0)+b

b=6.

Meaning y=-2x+6.

8 0
2 years ago
Other questions:
  • Line QR, line RS and line SQ are midsegments of triangle WXY. The perimeter of WXY is ____ cm.
    5·2 answers
  • Find the slope, if it exists of the line containing the points (-4, 0) and (-5,-3)
    5·2 answers
  • write an equation in slope intercept form of the line that has the same slope as y=3x-2 and passes through the point (7,25)
    7·1 answer
  • What is 4901 and 75 estimated to
    9·1 answer
  • What is 3 / 1 - 1/2
    10·1 answer
  • A sequence has an initial value (I) of -17 and its fourth term (a4) is 35. What is its general equation? Its 14th term?
    11·1 answer
  • Given the function f(x), what is the transformation f(x-r), is a real number and r&gt;0?
    8·1 answer
  • Un número cualquiera y número en lenguaje algebraico.
    10·1 answer
  • Function or not a function?
    5·2 answers
  • a fruit vendor bought 75 Kg of bananas she gave 10kg of the bananas to a poor family she sold the remainder at $28 per kg if she
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!