find the equation of the exponential function represented by the table below
x y
0 3
1 9
2 27
3 81
Answer:
y = 3^(1 + x)
Step-by-step explanation:
Notice that each time x increases by 1, y increases by a factor of 3.
Thus, the required equation has the form y = 3^x.
Check: If x = 0, do we get 3? No. Therefore we must modify the exponent:
y = 3^(1 + x)
Check: If x = 0, do we get 3? 3^(1 + 0) = 3 (correct)
If x = 2, do we get 27? 3(1 + 2) = 3^3 + 27 (correct)
In 2018, the attendance at Jefferson School's Fall festival was 240. In 2019, the attendance was 210. What was the percent change in attendance from 2018 to 2019? Round to the nearest whole percent.
Answer:
Step-by-step explanation:
Help lol easy
You are having a bake sale and selling cupcakes. It cost you $.15 to make each cupcake. If you sold each cupcake for $1.00, what would your profit be on each cupcake?
Answer:
0.85 DOLLARS
Step-by-step explanation:
What is the probability a customer ordered a small, given that he or she ordered a hot drink?
Answer:
i don no
Step-by-step explanation:
How much do I have to deposit today in order to have $5000 in 5 years if interest is 8.5% compounded annually?
Answer:
PV= $3,402.9
Step-by-step explanation:
Giving the following formula:
Future Vale (FV)= $5,000
Number of years (n) 5 years
Interest rate (i)= 8.5% compounded annually
To calculate the initial investment (PV), we need to use the following formula:
PV= FV / (1 + i)^n
PV= 5,000 / (1.085^5)
PV= $3,402.9
Mrs. Huffman is buying a dog for her daughter, Anna. The dog can be male or female. It can be a Goldendoodle, Collie, or Retriever. The dog can be small, medium, or large. What is the probability that Anna randomly chooses a male Goldendoodle of any size?
Answer:
1/2
Step-by-step explanation:
there ARE ONLY TWO GENDERS
THE dog can be male or female =
sum genders = 2
probability of been a male = 1/2
Penelope is going to the carnival to ride the rides. It costs $20 to get into the carnival and ride tickets are $0.50 each. How many rides did Penelope get to ride if she spends $35 in all.
Answer:
Penelope get to ride 30 rides if she spends $35 in all
Step-by-step explanation:
r= ride
20 +0.50r =35
sibtract 20 on each side
0.50r = 15
divide esach side by 0.50
r= 30
Please somebody help me
zero point four divided by one point twenty eight?
Answer:
1.42857142857
Step-by-step explanation:
Well that the answer I got on my phone.
Solve for x
x/5 = 30
Answer:
Solution :-By cross multiplication
x = 5 × 30
x = 150.
Verification150/5 = 30
30 = 30
Hence, the value of x is 30 units.
[tex][/tex]
Appreciate the help thank you olzzz
Answer:
a = 87
Step-by-step explanation:
36+57=93
180-93=87
Answer:
87°
Step-by-step explanation:
Since this is a triangle, triangles add up to 180°
Since we know the 2 angles, we are able to find a
180 - 36 - 57 = 87
a = 87°
prove triangle AOC is congruent to triangle BOD
Step-by-step explanation:
We are given two Triangles and we need to prove them congruent . In ∆AOC and ∆BOD , we have
[tex]\to AC = BD ( given ) \\\\\to OD = OA \\\\\to \angle CAO =\angle BDO (Since\ BD || AC ) [/tex]
Therefore by AAS congruent condition we can say that ,
[tex]\implies\red{ \triangle AOC \cong \triangle BOD }[/tex]
Hence Proved!
60 POINTS! RIGHT ANSWERS ONLY PLEASE
Which of the following is a binomial experiment?
Rolling a six-sided number cube and recording the number until a 5 comes up
Rolling a six-sided number cube and recording the number until an odd number comes up
Rolling a six-sided number cube 24 times and recording the number that comes up
Rolling a six-sided number cube 24 times and recording if a 5 comes up
Answer: Rolling a six-sided number cube 24 times and recording if a 5 comes up
Thank you for being so generous with the points!! <3
which graph shows all the values that satisfy 2/gx +3>45/g
Answer:
In graphing inequalities, the first thing to do is graph the equation first irregardless of the inequality symbol. In the given problem, the equation to be graphed is f(x) = 2/9x + 3. Since it has a general form of y=mx + b, this is a linear function. Plot the graph by assigning arbitrary points of x, then you get the corresponding f(x) values. Graph the x values against the f(x) values. The blue line the attached picture will be formed.
Next, you solve the equation by finding x. Just don't mind the inequality symbol:
2/9 x + 3 > 4 5/9
2/9x > 4 5/9 - 3
2/9x > 14/9
x > 14/9 ÷ 2/9
x > 7
Hence, the value of x must be greater than 7. To show this in the graph, find the line where x=7. Create a partition using that line, then shade the rest of the portion where x is greater than 7 until infinity.
Step-by-step explanation:
Out of the 69 customers at Charlie's boutique, 33 wore a size medium.
What is the probability that a randomly selected customer wore a size medium?
Write your answer as a fraction or whole number.
Pls help
Answer:
you can download it here
Step-by-step explanation:
A restaurant used 231 eggs last week. Of these, 46 were brown in color. The remainder of the eggs were white in color. Which equation can be used to solve for w, the number of white eggs used last week?
Answer:
46 + w = 231
hope this helped
What is the volume of a sphere with a radius of 25.9 in, rounded to the nearest tenth
of a cubic inch?
A rectangle has an area of 100cm and a perimeter of 104cm. Find the length and width of the rectangle (NEED ASAP)
What two numbers have a product of -30 and a sum of -1?
Answer:
5 and -6
Step-by-step explanation:
Answer:
5 and -6
Explanation:
[tex]xy = - 30 \\ x + y = - 1[/tex]
and you solve using the substition method
Mr. Dotson wants to know if the neighbors on his street would be interested in a community watch. He surveys every fourth household and concluded that 70% would be interested
Answer:
The answer is "This is true since it is a random systematic sample".
Step-by-step explanation:
In the given scenario, Systemic random sampling involves the random sampling method which often involves the collection of samples onto an interval system in such a numbered group of people based on the premise/base. It also is a selection of samples at a particular preset interval.
Calculate the sampling interval and fix it quickly. (The sample population divided with several selected components needed).Take a random value between 1 to a sample interval. Replicate the sample size to choosing all additional sections.1/2 (2n + 6)
simply the answer and show work
Answer:
The answer is n + 3.
Step-by-step explanation:
1) Simplify.
[tex] \frac{2n + 6}{2} [/tex]
2) Factor out the common term 2.
[tex] \frac{2( n+ 3)}{2} [/tex]
3) Cancle 2.
[tex]n + 3[/tex]
Therefor, the answer is n + 3.
8. Sheila and her study partner flipped a coin 120 times. They flipped 70 heads and 50 tails. What is the
experimental probability that the next flip will be heads up?
F 58%
58%
G 50%
H 41%
J 70%
Answer:
.
Step-by-step explanation:
Answer:
F
Step-by-step explanation:
To find the amount of percent a value takes up, here's the formula:
Let X = heads
Let y = amount of coinflips
Let z = percent of coinflips are heads
z=x/y
Need help on this for brainliest
Answer:
Your answer is letter d
Step-by-step explanation:
just help if you cannnnnnnnnnnnnnnnnnnnnnnnnn
Answer:
A) you need more information to determine the domain.
Step-by-step explanation:
You can't find an answer just by looking at it. Think of it like you are just guessing.
a cylinder has a diameter of 6cm and a height of 3 cm what is the surface area of the cylinder?
Answer:
113.1cm²
Step-by-step explanation:
Answer: It is 36 pi
Step-by-step explanation:
I took the test on k-12
find the value of a amd b if: 7+4 root 3 divided by 7-4 root 3=a+b root 3
A spinner is divided equally into 4 colors: red, blue, green,
and yellow. If the spinner spins 60 times, how many times
can you expect it to land on blue?
Answer:
15 times because if the spinner is divided into 4 equal parts and you spin it a total of 60 times you would divide 60 by 4 to get your answer
Answer:
15 because 15 for each red, blue, green and yellow
Step-by-step explanation:
15 x 4 = 60
find the perimeter of a square whose area is 441 sq km?
Area of perimeter = 441 sq cm
(side)2 =
[tex] \sqrt{441} [/tex]
=21
the perimeter of sq= 4×side
= 4×21
84
Answer:
Area of perimeter = 441 sq cm
(side)2 =
[tex] \sqrt{441} [/tex]
=21
the perimeter of sq= 4×side
= 4×21
84
Write the equation for the yellow line. (please help)
Answer:
5 2 thats them so 5 2 that them
Identify the vertex, focus , axis of symmetry and directrix(??+1)2 =8(x-3)
Answer:
70
Step-by-step explanation:
