Answer:
The best estimate for the proportion of ticket buyers that make purchases using their smart phones is 0.45.
Step-by-step explanation:
We take the estimate from the website, and expand for all buyers, to find the proportion that use their smartphones.
400 users of the website were randomly sampled from the existing database and 180 were found to have used their smart phones.
180/400 = 0.45
The best estimate for the proportion of ticket buyers that make purchases using their smart phones is 0.45.
Can someone help me with this algebra question? I don’t get it :( and I’m not tryna fail
Answer:
Step-by-step explanation:
if f(x)=3x-1 and g(x)=2x+5 then
f(x)-g(x)=3x-1-(2x+5)
f(x)-g(x)=3x-1-2x-5
f(x)-g(x)=x-6
Which is a recursive formula for the sequence 50, 54, 58, 62, …?
A. an=4n+46
B. {a1=50an=an−1+4, where n≥2
C. an=4n+50
D. {a1=46an=an−1+4, where n≥2
Answer:
A
Step-by-step explanation:
common difference d = 4
nth term = a₁ + (n-1)d
= 50 + (n-1)4
= 50 + 4n-4
= 46 + 4n
[tex]3x + 2 > 2x[/tex]
Answer:
x > 0.3x
Step-by-step explanation:
About
It's actual is:
0.333333333333
This is what I think correct me if i'm wrong and wait for more responses if needed please, thank you.
Im just needing help with problem 1 and 2
Answer:
for both 1 and 2 you need the 1st equation (p= 2w+2l)
Step-by-step explanation:
1.
p=2(10)+2(7)
p=20+14
p= 34
2.
p=2(100)+2(24)
p= 200+48
p= 248
Solve for X in the figure below, knowing line L is parallel to line M. Thank you! Will give Brainliest.
Boadu and ansah formed a company and agreed that their annual profit will be shared in the ratio of 4:5 respectively. If at the end of the year ansah received ghs5,000 more than Boadu how much was boadu share?
Answer:
ghs 20,000
Step-by-step explanation:
If Boadu and ansah formed a company and agreed that their annual profit will be shared in the ratio of 4:5 respectively, the total ratio will be 4 + 5 = 9
Let Boadu share be x
Let ansah share be y
If at the end of the year ansah received ghs5,000 more than Boadu, then;
y = 5000 + x
Boadu share = 4/9 * (x+y)
x+y is the total amount shared
x = 4/9 * (x+y)
Substitute y = 5000 + x
9x = 4(x+y)
9x = 4x + 4y
9x - 4x = 4y
5x = 4y
5x = 4(5000+x)
5x = 20,000 + 4x
5x-4x = 20,000
x = 20,000
Hence Boadu share is ghs 20,000
Porcupines can cause damage to wood structures by chewing them. Researchers studied a liquid repellent
designed to reduce such damage. A sample of 20 wooden blocks of the same size were treated with the
repellent and left outside in an area where porcupines are known to live. After a certain amount of time, the
blocks were inspected for the number of porcupine teeth marks visible. The data were used to create the
95 percent confidence interval (4.9,5.8).
Which of the following claims is supported by the interval?
A
The expected number of porcupine teeth marks on a wooden block treated with the
repellent is less than 5.
B
B
The expected number of porcupine teeth marks on a wooden block treated with the
repellent is 5.
с
The mean number of porcupine teeth marks on all wooden blocks treated with the
repellent is 6.
D
The mean number of porcupine teeth marks on all wooden blocks treated with the
repellent is greater than 6.
E
The mean number of porcupine teeth marks on all wooden blocks treated with the
repellent is less than 6.
Answer:
The mean number of porcupine teeth marks on all wooden blocks treated with the repellent is less than 6.
Step-by-step explanation:
The mean number of porcupine teeth marks on all wooden blocks treated with the repellent is less than 5 and 6.
Option A and E are the correct answer.
What is a confidence interval?A confidence interval is a range of values that is likely to contain the true value of an unknown parameter, such as a population means or proportion, based on a sample of data from that population.
It is a statistical measure of the degree of uncertainty or precision associated with a statistical estimate.
We have,
The 95% confidence interval for the mean number of porcupine teeth marks on wooden blocks treated with the repellent is (4.9, 5.8).
This means that we can be 95% confident that the true mean number of porcupine teeth marks on all such wooden blocks falls between 4.9 and 5.8.
Option A states that the expected number of porcupine teeth marks on a wooden block treated with the repellent is less than 5.
This claim is supported by the confidence interval since the upper limit of the interval is less than 5.
Option B states that the expected number of porcupine teeth marks on a wooden block treated with the repellent is 5.
This claim is not supported by the confidence interval, since both the lower and upper limits of the interval are greater than 5.
Option C states that the mean number of porcupine teeth marks on all wooden blocks treated with the repellent is 6.
This claim is not supported by the confidence interval, since both the lower and upper limits of the interval are less than 6.
Option D states that the mean number of porcupine teeth marks on all wooden blocks treated with the repellent is greater than 6.
This claim is not supported by the confidence interval, since the upper limit of the interval is less than 6.
Option E states that the mean number of porcupine teeth marks on all wooden blocks treated with the repellent is less than 6.
This claim is supported by the confidence interval since the upper limit of the interval is less than 6.
Therefore,
The mean number of porcupine teeth marks on all wooden blocks treated with the repellent is less than 5 and 6.
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Describe the features of x ≥ (y – 3)2 – 2? Check all that apply.
parabola with a vertex (–2, 3) opening to the left
parabola with a vertex (–2, 3) opening to the right
parabola with a vertex (–2, 3) opening up
quadrant 2 is not shaded at all
quadrant 3 is not shaded at all
Answer:
parabola with a vertex (-2,3) opening to the right and quadrant 3 is not shaded at all
Step-by-step explanation:
correct on edge 2021
Option (B) parabola with a vertex (–2, 3) opening to the right, and option (E) quadrant 3 is not shaded at all are correct.
What is a parabola?It is defined as the graph of a quadratic function that has something bowl-shaped.
We have given a parabolic inequality:
x ≥ (y – 3)² – 2
After plotting on the graph:
parabola with a vertex (–2, 3) opening to the right
quadrant 3 is not shaded at all
Thus, option (B) parabola with a vertex (–2, 3) opening to the right, and option (E) quadrant 3 is not shaded at all are correct.
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Answer plz. Give an explanation so I know ur not just getting points so I dont report. Thank you!
Answer:
The answer is both a and d
Step-by-step explanation:
Essentially what its asking is what percentage of the hot dog can buy the pizza
To find this out you would divide the cost of the pizza by the cost of the hot dog
So it would be 2/1.5
4(20+12) + (4-3)
A. 29
B. 80
C. 128
D. 92
Answer:
the answer is 129 so the closest would be 128 (c)
Answer: The answer is 129 but i dont know why its not here
Step-by-step explanation:
20+12= 32
32 x 4 =128
4 - 3= 1
128 + 1= 129
32xyz+12xy+20y simplify
Answer:
I love algebra anyways
the ans is in the picture with the steps
(hope it helps can i plz have brainlist :D hehe)
Step-by-step explanation:
Answer:
(x - 2y) • (x - 10y)
Step-by-step explanation:
what is the value of x
|5x + 6| + 6 = x
Answer:
Step-by-step explanation:
absolute(5x + 6) = x
There are 2 solutions to this
Solution 1
5x + 6 = x Subtract 5x from both sides.
5x - 5x + 6 = x - 5x
6 = - 4x Divide by - 4
6/ - 4 = -4x / -4
x = - 1.5
Solution 2
5x + 6 = - x
6 = -x - 5x
6 = - 6x
x = 6/-6
x = - 1
Here is a graph which shows the solutions.
y = -x- + 4x + 4
Write in vertex form
Answer:
and it's linearjddjdndkfkkdkd
-1,4
Complete the congruency statement for the triangles
Answer:
∆ABC ≅ ∆EDF by the SAS Congruence Theorem.
Step-by-step explanation:
<A ≅ <E,
Side length AC ≅ Side length EF
Side length AB ≅ Side length ED,
Thus, this implies that an included angle and two sides of one triangle are congruent to an included angle and 2 corresponding side lengths of the other triangle.
Therefore, we would conclude that:
∆ABC ≅ ∆EDF by the SAS Congruence Theorem.
Nicole records the following temperatures (in degrees
Fahrenheit) at noon during one week:
74, 72, 76, 74, 74, 72, 98
These temperatures contain one extreme value (98)
Which measure of center should Nicole use to describe the temperatures?
O A. Mean absolute deviation (MAD)
B. Mean
C. Range
o D. Median
Answer:
It’s D, Median
Step-by-step explanation:
What is the y-intercept of the line?
Answer:
28
Step-by-step explanation:
Answer: 5 is the y-intercept and -16 is the slope
22 - 17 = 5
32 - 48 = -16
Step-by-step explanation:
please help!!!! thank you!!!
Answer:
b i think
Step-by-step explanation:
Please give me the answer
Answer:
B is the right answer
Step-by-step explanation:
Answer: B
Step-by-step explanation:
Left Two Up Three
–12x +12 + 10x – 16 *
Answer:
x=2
Step-by-step explanation: you would have to move 10 to the other constant and add and then move 12 to 16 by adding 12 to 16 then divide the 2 number then BOMB
what is the value of n when 3/5 of n is 27?
Answer:
n=45
Step-by-step explanation:
divide 27 by 3 and you get 1/5 of n. Then multiply the number you got (9) by 5 to get 1 whole. your answer is then 45
A fraction of the figure below is shaded.
3rd grade
Answer:
D
Step-by-step explanation:
The fraction of the shaded square above is 1/6 and the one number line for D is also 1/6 of 1
Graph each of the following on the coordinate plane.
Answer:
Frist goes to the 1st box second line and 4th dot.
Second dont know
Step-by-step explanation:
use pascal's triangle to expand the binomial (x+3)^4
Answer: the answer is in the photo pls check this out and hope this helps can u give me brainliest
Step-by-step explanation:
A firefighter extends a ladder against the side of a house. The ladder makes a 32°\degree° angle with the ground. The base of the ladder is 25 feet from the house. Find how high the ladder reaches up the side of the house to the nearest tenth of a foot.
*Draw and label a picture, set up an equation, and solve*
Answer:
29.5 feet
Step-by-step explanation:
A firefighter extends a ladder against the side of a house. The ladder makes a 32°\degree° angle with the ground. The base of the ladder is 25 feet from the house. Find how high the ladder reaches up the side of the house to the nearest tenth of a foot.
We solve using Trigonometric function of Cosine
= cos theta = Adjacent/Hypotenuse
Theta = 32°
Adjacent = 25 feet
Hypotenuse = Height of the ladder
= cos 32 = 25/x
x = 25/cos 32
x = 29.479460084 feet
Approximately= 29.5 feet
Faried is planting a flower garden. He plants 3 lilies for every 4 rose bushes. If Faried plants 12 lilies, how many rose bushes did he plant?
Answer:
16.
Step-by-step explanation:
There are 12 lillies which means that Faried planted 4 rows of rose bushes because 12 divided by the 3 lillies is four. 4x4= 16 rose bushes
The number of rose bushes planted is A = 16 bushes
What is Proportion?The proportion formula is used to depict if two ratios or fractions are equal. The proportion formula can be given as a: b::c : d = a/b = c/d where a and d are the extreme terms and b and c are the mean terms.
The proportional equation is given as y ∝ x
And , y = kx where k is the proportionality constant
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Given data ,
Let the proportion be represented as A
Now , the value of A is
Let the number of lilies planted be = 3 lilies
The number of rose bushes planted for 3 lilies = 4 bushes
Now , the new number of lilies planted = 12 lilies
And , the proportion is
number of lilies planted / number of rose bushes planted for 3 lilies = the new number of lilies planted / A
Multiply by A on both sides , we get
A ( 3/4 ) = 12
Divide by 3 on both sides , we get
A / 4 = 4
Multiply by 4 on both sides , we get
A = 16 bushes
Hence , the number of rose bushes is 16
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HELP ME PLEASEEEEEEEEEEEEEEEEEEEEEEEEEEEE WILL GIVE BRAINLIST
Answer:
C
Step-by-step explanation:
In order to be able to find the volume of a pyramid you need to find the 1/3(area of it base x height)
Answer:
c
Step-by-step explanation:
The formula to finding the volume of a pyramid is:
[tex]\frac{1}{3}[/tex] (area of its base x height)
PLEASE HELP ASAP I WILL MARK BRAINLIEST!!
Lacey went to the fair. She paid $5 for the entrance fee. Each ride ticket cost $0.25. Lacey spent $12.50 at the fair. Which equation can be used to find how many ride tickets Lacey bought?
A $0.25r + $5 = $12.50
(в $0.25r + $5r= $12.50
C. 5r + $0.25 = $12.50
D. $0.25r-$5 = $12.50
Answer:
A
Step-by-step explanation:
cause im smart
Fixed Object Involved in Collision Number of Collisions Pole/post 1,416 Culvert/curb/ditch 2,516 Shrubbery/tree 2,585 Guardrail 896 Embankment 947 Bridge 231 Other/unknown 1,835 Assume that a collision will be randomly chosen from this population. Round your answers to four decimal places. a. What is the probability of a fatal collision with a pole or post
Answer:
0.1358 = 13.58% probability of a fatal collision with a pole or post
Step-by-step explanation:
A probability is the number of desired outcomes divided by the number of total outcomes.
In this question:
1416 collisions with pole or post.
1416 + 2516 + 2585 + 896 + 947 + 231 + 1835 = 10426 total collisions.
a. What is the probability of a fatal collision with a pole or post?
[tex]p = \frac{1416}{10426} = 0.1358[/tex]
0.1358 = 13.58% probability of a fatal collision with a pole or post
Geometry help please. Answer choices: A, B, C, or d. Picture beloe.
Answer:
D
Step-by-step explanation:
you reverse the numbers in the y spot, so if they are negative make them positive, vise versa
HELP ASAP PLEASE 10 points
Answer:
2 Km
Step-by-step explanation:
Similar means they are of the same ratio
0.9 : 1.8 is a 1 : 2 ratio
That means
1 : d => is also 1 : 2 ratio
Therefore d=2