PLEASE HELP ASAP GIVING 100 POINTS
1. Finicus Jones is a wildlife researcher in South America. He has been studying green vine snakes and flatbread snakes. He randomly selected eight adults of each type of snake, measured them, and recorded their lengths in cm.
Green vine snake: {153, 172, 170, 172, 166, 174, 150, 153}
Flatbread snake: {144, 122, 150, 134, 144, 127, 142, 149}
(a) Create a line plot for each data set.
(b) Calculate the mean and MAD for each type of snake. (round to the nearest hundredth). Show your work.
(c) Calculate the means-to-MAD ratio for the two types of snakes. Show your work.
(d) What inference can be made about the length of both types of snakes? Explain
2. The manager at a new radio station wants to know what kind of music is popular in the area. She surveys people at random as they exit a supermarket between noon and 2 pm on a Monday.
(a) Is this sample biased or unbiased? Explain your reasoning in complete sentences.
(b) Suggest another method she could use to survey people in the area that would get an unbiased result.
Answer:
this is so easy like just put variables a in b
Step-by-step explanation:
hope you get it
The Question is what is the mean of the snakes lengths. The mean means you line all of your numbers up in order then you add all of the numbers up and when you get the total you divide the total plus the amount of numbers you have. So in this case the numbers would be: 8,17,22,39,44..next you would add all them up so it would be the next step would be to count the numbers up and divide that by the total...so it will be 5/130=26 so the mean for this question will be 26....hope it helps :)
what number is missing ? 54÷ ? =6
Answer:
9
Step-by-step explanation:
9x6=54
Answer:
? = 9
Step-by-step explanation:
3 to the power 2x+3 is subtracted by 9 which is equal to 2 times 9 to the power x+1 and is subtrcted by 6
Answer:
x = -0.5
Step-by-step explanation:
Here we have the sentence:
"3 to the power 2x+3 is subtracted by 9 which is equal to 2 times 9 to the power x+1 and is subtracted by 6"
The first part:
"3 to the power 2x+3 is subtracted by 9..."
This can be written as:
[tex]3^{2x + 3} - 9[/tex]
"... is equal to 2 times 9 to the power x+1 and is subtracted by 6"
[tex]3^{2x + 3} - 9 = 2*9^{x + 1} - 6[/tex]
Let's solve this for x.
First, we can add 9 in both sides:
[tex]3^{2x + 3} = 2*9^{x + 1} - 6 + 9 = 2*9^{x + 1} + 3[/tex]
We also know the relations:
[tex]a^n*a^b = a^{n + b}[/tex]
and
[tex](a^n)^m = a^{n*m}[/tex]
We can write the left part as:
[tex]3^{2x + 3} = 3^{2x}*3^3 = (3^2)^x*3^3 = 9^x*27[/tex]
And the right side as:
[tex]2*9^{x + 1} + 3 = 2*9^x*9 + 3 = 18*9^x + 3[/tex]
Then the equation becomes:
[tex]27*9^x = 18*9^x + 3[/tex]
Now let's move both terms with 9^x to the left side:
[tex]27*9^x - 18*9^x = 3\\[/tex]
[tex](27 - 18)*9^x = 3[/tex]
[tex]9*9^x = 3[/tex]
[tex]9^x = 3/9 = 1/3[/tex]
Now remember that:
Ln(a^b) = b*Ln(a)
Then if we apply the Ln( ) function to both sides, we get:
[tex]Ln(9^x) = Ln(1/3)[/tex]
[tex]x*Ln(9) = Ln(1/3)[/tex]
[tex]x = \frac{Ln(1/3)}{Ln(9)} = -0.5[/tex]
Multiply (x - 4)(x - 3)
PLZZZ get it RIGHT, SHOW YOUR WORK,AND NO LINKS PLZ!
Answer:
b
Step-by-step explanation:
(x - 4) (x - 3)
x^2 - 3x - 4x + 12 (you distribute x in (x-4) to each of the terms x and -3 and multiply them. x*x is x^2 and x*(-3) is -3x. Then, you distribute -4 in (x-4) to each of the terms x and -3 and multiply them. -4*x is -4x and -4*-3 is 12)
x^2 - 7x + 12 (B)
Answer:
B
Step-by-step explanation:
x²-3x-4x+12
x²-7x+12
SOMEONE HELP ME PLZ
.
Last year 500 people attended a concert this year 900 people attended what was the percent increase in attendance from last year to this year
Answer:
80
Step-by-step explanation:
500 to 900? = 80.
The average marks of 10 students is 41. If the average marks of the top 6 and bottom 5 rankers are 45 and 36 respectively, how much did the
5th ranker score?
a. 41
b. 42
c. 43
d. 40
no spam please
Solve: -6 = b/18⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
Answer:
b=-108
Step-by-step explanation:
answer:
-108 = b
step-by-step explanation:
-6 = b/18
do the inverse to get the variable by itselfwe will have to multiply 18 to both sides(X18) -6 = b/18 (X18) — multiplying b/18 and 18 crosses out the 18's
-108 = b
Simplify the expression by combining like terms: 6(4x) + 8(5y) - 21 + 63- 3(5x) - 12y + 18 - 7(3x)
Is algebra.
PLEASE HELP NO LINKS OR FILES.
I don't want links.
I don't want links.
I don't want links.
I don't want links.
Answer:
(x+9)(x+10)
Step-by-step explanation:
9*10=90
9+10=19
Answer:
(x+9)(x+10)
Step-by-step explanation:
Explanation in Image,
Btw the links are Viruses, DO NOT DOWNLOAD ANYTHING FROM THEM
they are bots going around brainly trying to make people download viruses from them, I hate them too btw, I feel you.
What is ;
i^82
(Show work)
Answer:
-1
Step-by-step explanation:
We know that i^4 is equal to one so what you do is divide by 4 and the remainder is your simplified version
In this case the remainder is two which means taht i^82 = i^2 = -1
Andrea is selling scooters. This equation shows how Andrea's revenue () depends on the number of scooters sold (x). y = 4x How much revenue does Andrea get for each scooter?
Answer:
Andrea get for each scooter?
Step-by-step explanation:
Solve the system of equations and choose the correct answer from the list of options.
x + y = 1
y = x −5
Label the ordered pair as (x, y). (4 points)
a
(0, 0)
b
(3, −2)
c
(−2, 3)
d
(−3, 0)
Answer:
b
Step-by-step explanation:
substitute y in x
x+x-5=1
2x=6
x=3
y=3-5
y= -2
Drag each question to the correct location on the table.
Classify the questions as statistical or not statistical.
Please help!!! Confused.
Answer:
[tex] {x}^{2} + 11x + 30[/tex]
Step-by-step explanation:
Area is length x width
The length is
[tex](x + 6)[/tex]
The width is
[tex](x + 5)[/tex]
Multiply both using FOIL Method
[tex](x + 6)(x + 5)[/tex]
[tex] {x}^{2} [/tex]
[tex]6 \times x = 6x[/tex]
[tex]5 \times x = 5x[/tex]
[tex]6 \times 5 = 30[/tex]
Write in standform form
[tex] {x}^{2} + 6x + 5x + 30[/tex]
[tex] {x}^{2} + 11x + 30[/tex]
Shaughn has 36 bottles of soda.
Each bottle holds 20 ounces of soda.
Shaughn will use 15-ounce paper cups to serve the soda.
How many paper cups will he need to hold all of the
Answer:
I think u left out the word sorry dude cant help u
What is this?
F(x) = (1/3)^x
Answer:
top right is the answer
Step-by-step explanation:
help.
step by step please
no links i will report :)
Answer: 2 1/13
Step-by-step explanation: keep change flip. keep 9/13 and then change, so you multiply 9/13x3/1 which is equal to 27/13 which is 2 1/3
anyone know this equation ????
Answer:
c (-2,1)
Step-by-step explanation:
use y= and substitute into 2nd equation which will give you x. Then take x value and substitute into first equation which will give you y value and theres your answer
please help, will mark brainliest :)
Answer:
The answer to this question is the second choice.
Step-by-step explanation:
Marjorie paid $72.00 for 6 CD's. If the CD's are all the same price, what is the price of 1 CD? A) $12.00 B) $9.00 C) $8.00 D) $6.00
Answer:
A
Step-by-step explanation:
CD's Price
6 -------> $72.00
1 -------> x
[tex]x=\frac{72*1}{6}\\\\x=$12[/tex]
Colin was thinking of a number. Colin adds 10, then divides by 6 to get an answer of -8. What was the original number?
Answer: - 58
Step-by-step explanation:
First, let us think of this number as x.
The first direction is to add 10 to it which is now x+10
After, we divide this by 6 getting -8.
This would look like (x + 10)/y = -8
Now, we solve
We go backwards so first step Is to multiply -8 by 6. This would get us -48. Then we subtract 10 since we added ten in the first place giving us -58.
The final answer is -58
Answer:
The original number was -58
Step-by-step explanation:
Step 1: Do -8*6 to find out what the numerator was.
Step 2: After finding that the numerator was -48 you would subtract 10 getting -58
Step 3: Check your work : -58+10 = -48
-48/6 = -8
Devon ends up paying extra 28% in intrest, if the ps5 is 500 how much did he pay in intrest?
Answer:
780
Step-by-step explanation:
i think sorry if it is wrong
275^2 please answer this question
Answer:
75,625
Step-by-step explanation:
pls help thank you!!!
Answer:
6 , 3 should be the midpoint
Step-by-step explanation:
Help pls! Giving brainliest
Answer:
the 2nd one
Step-by-step explanation:
3. Mrs. Garcia's class sold bottles of lemonade for $1.36 each and Mr. Runner's class sold protein bars for $1.65 each. Together, the classes sold 79 items and earned $118.17 for their school
Answer:
324.6
Step-by-step explanation:
because Together, the classes sold 79 items and earned $118.17 for their school
The diameter of a circle is 14 ft. Find its area to the nearest tenth.
Answer:
615.8
Step-by-step explanation:
A=πr2=π·142≈615.75216
Answer:
Solution given:.
diameter=14ft
radius [r]=14/2=7ft
Now
Area of circle =πr²=π×7²=154ft²
Gerard bought 100 feet of fence to make a pen for his sheep. He decided to build the fence up
against his barn, as shown in the picture below. He wants to MAXIMIZE the amount of area of the pen.
What should the dimensions be? (HINT: Area = length x width)
Answer:
Step-by-step explanation:
P = 2b + a = 100
A = b * a
a = 100 - 2b
A = b(100 - 2b) = 100b - 2b^2
dA/db = 100 - 4b
100 - 4b = 0
b = 25
a = 50
A group of mothers answered yes or no to the survey questions below.
Do you have 3 or more children?
Do you own a minivan?
The same mothers responded to both questions. The results are shown in the first table.
Of the 43 mothers with 3 or more children 26 of them own a minivan.
Complete the two way frequency table to represent the correct mothers for each cell of the table.
Answer:
To draw a two way table for the own a mini van table as it says 26 own a minivan for people with 3 or more children is subtraction from the given full total 37;
37 - 26 = 11 and finding two or more children is 51- ?= ? see below ans 51- 11 = 40 for those that don't own a mini van.
Then its quick addition to find 40+17 = 57
See given answers in question already easy to answer in bold before doing the sums.
one or 2 children | 3 or more children Total
Do own a mini van 11 26 = 37
Do not own a mini van 40 17 = 57
Total 51 43 = 94