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
Karo-lina-s [1.5K]
3 years ago
7

Which are true of the function f(x)=49(1/7)^x

Mathematics
2 answers:
Ira Lisetskai [31]3 years ago
8 0

The Option (1),(4) and (5) are correct.

Step-by-step explanation:

The  function given to us  is : y= f(x) =49(1/7)^x

The following  statements  are true regarding the above function is

  • As you can see  that  the value of y(49)is defined for  all values of x , so the Domain is the set of all values of x , which is set of all real numbers.
  • X is defined for all values of y. So the Range of  all the values that y can take  is also set of all real numbers greater than zero, i.e y>0.
  • As x increased by 1, each y-value is one seventh of the previous y-value

juin [17]3 years ago
5 0

Answer:

The correct options are 1, 4 and 5.  

Step-by-step explanation:

The general form of an exponential function is

f(x)=ab^x

where, a is initial value and b is growth factor.

Domain of this function is all real numbers. If a>0, then range is all positive numbers.

The given function is

f(x)=49(\frac{1}{7})^x

where, a =49 and b=1/7.

It is an exponential function. So, the domain is the set of all real numbers.

Since, a=49 which is a positive value, therefore the range is y>0.

The value of b is 1/7, it means as x increased by 1, each y-value is one seventh of the previous y-value.

Therefore, the correct options are 1, 4 and 5.  

You might be interested in
Please help me answer 61-64 with explanations please (if u can)
wlad13 [49]

Answer:

61 4gr speed is equal rpto density multiply by acceleration is equal to 4

4 0
2 years ago
Please help figure out
elena55 [62]
This is an altitude.  Shown by the right angle on the side opposite the point.
8 0
3 years ago
Read 2 more answers
(25 points & Brainliest, please explain)
My name is Ann [436]

Answer:

Quadratic expression

Step-by-step explanation:

5x + 3x^2 − 7

Degree of expression = 2

So it is Quadratic expression

6 0
3 years ago
Read 2 more answers
A committee of 15 members is voting on a proposal. Each member casts a yea or nay vote. On a random voting basis, what is the pr
Igoryamba

Answer:

0.006% probability that the final vote count is unanimous.

Step-by-step explanation:

For each person, there are only two possible outcomes. Either they vote yes, or they vote no. The probability of a person voting yes or no is independent of any other person. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

And p is the probability of X happening.

Random voting:

So 50% of voting yes, 50% no, so p = 0.5

15 members:

This means that n = 15

What is the probability that the final vote count is unanimous?

Either all vote no(P(X = 0)) or all vote yes(P(X = 15)). So

p = P(X = 0) + P(X = 15)

In which

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 0) = C_{15,0}.(0.5)^{0}.(0.5)^{15} = 0.00003

P(X = 15) = C_{15,15}.(0.5)^{15}.(0.5)^{0} = 0.00003

So

p = P(X = 0) + P(X = 15) = 0.00003 + 0.00003 = 0.00006

0.006% probability that the final vote count is unanimous.

7 0
3 years ago
A. None<br> B. One <br> C. Two<br> D. Three or more
grin007 [14]
B. One is the answer because the longest line that would match is through c and b.
8 0
4 years ago
Read 2 more answers
Other questions:
  • For what values of x and y must each figure be a parallelogram?
    15·2 answers
  • Find the zeros in the function.<br><br> y=(x+2)(x-6)(x-7)<br><br> Please help me!
    11·1 answer
  • Trick question what is 1+(6+8)×3? Did you get it correct?
    10·2 answers
  • The sample consisted of 55 night students, with a sample mean GPA of 2.3 and a standard deviation of 0.02, and 50 day students,
    12·1 answer
  • 35. A pilot can travel 400 miles with the win
    14·1 answer
  • 3/8x - 1/4 =1/2<br><br> Please hurry
    13·1 answer
  • A hole the size of a photograph is cut from a red piece
    10·1 answer
  • The propellers on the Titanic have a radius of 23.5 ft and weigh 38 tons each. If the propellers turn at 180 rpm, what would be
    12·1 answer
  • If x=3,y=-2(negative 2) and z=6,what is 7xyz
    11·2 answers
  • It takes 96 pounds of seed to plant a 10 acre field how many acres can be planted per pound of seed
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!