Answer:
The appropriate test for the investigation is;
E. A chi-square test of independence
Step-by-step explanation:
The chi-square test for independence is for the analysis of two categories from within a population to evaluate the existence of association among the different categories within the two variables
The chi-square test for independence is used for the analysis of contingency (frequency) table
Therefore, the appropriate test for the investigation in finding out (1) the textbook preference and (2) the class level of the associated student is the chi-square test of independence
pls help with math !
Answer:
181 Square cm.
Step-by-step explanation:
I don’t get this can someone explain please
Answer:
2^4/4^2 will be 1, I will explain after answering,
2 x 3^1 = 6
(4 - 2) ^2 = 4
First. Evaluate the exponents in the fraction above
2 x 2 x 2 x 2 = 16
4 x 4 = 16
and 16 over 16 would equal 1 whole
3 to the power of 1 means just 3 so 2 x 3 = 6 (easy multiplication)
Evaluate in the parenthesis first: 4 - 2 = 2 then 2 to the power of 2 would be 2 x 2 = 4
Please help, I don't understand- will give brainliest and 50 coins
Answer:
meh
14fri
Step-by-step explanation:
Explain:
10 to the 3rd power
Answer:
1000
Step-by-step explanation:
just trust me <3
1. A triangle has side lengths of 1, 2, and 3. Can these lengths form a triangle? Use the Triangle Inequality Theorem to prove whether these lengths form a triangle. Show all work. DUE IN 1 HOUR
Step-by-step explanation:
step 1. the 3rd side of a triangle must be less than the addition of the other two sides
step 2. 3 is not less than the addition of 1 and 2
step 3. no. this cannot be a triangle.
What is the decimal value of x in the equation 2.5x + 0.5 = 6.25?
Answer:
2.5x+0.5=6.25
x=2.3
Step-by-step explanation:
Answer is:x=2.3
Jim's parents keep a chart on the wall where they mark how much Jim grows each year. When Jim was 15, he grew 1/4 of an inch and when he was 16, he grew 1/2 of an inch. In total, how much did Jim grow in during those two years?
Answer: 3/4 inch
Step-by-step explanation:
When Jim was 15, he grew 1/4 of an inch and when he was 16, he grew 1/2 of an inch.
His growth during those two years will be:
= 1/4 + 1/2
= 1/4 + 2/4
= 3/4 inch
His growth increased by 3/4 inches.
A bag has sixteen marbles in it. There are four of each color. There
are four red, four blue, four green and four yellow.
What is the probability that you will pull a red marble out of the bag?
Answer: 25 percent
Step-by-step explanation:
The probability of pulling out a red colored marble is [tex]\frac{1}{4}[/tex] or 25%.
What is probability?'Probability is a branch of math which deals with finding out the likelihood of the occurrence of an event.'
According to the given problem,
Total number of marbles = 16
Number of red marbles = 4
Probability = [tex]\frac{No of possible outcomes}{Total number of outcomes}[/tex]
The number of possible outcome is the number of red marbles = 4
Total number of outcomes is the total number of marbles = 16
⇒ Probability = [tex]\frac{4}{16}[/tex]
= [tex]\frac{1}{4}[/tex]
or, [tex]\frac{1}{4}[/tex] × 100
= 25%
Hence, the probability of pulling out a red marble is 25%.
Learn more about probability here:
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PROBABILITY!! Please help huge part of my grade will give BRAINLIEST or venmo you (only need the last 2)
Answer:
a record of all the mail that a mailbox identifies as Junk
Help ASAP I give you a cookie after you answer:)
For the parallelogram, if m<2=5x-28 and m<4=3x-10, find m<3
PLSSS HELP 50 POINTSS ILL SEND 40 MORE IF U HELPP PLSSS
The cost of the hiking trip this year is 2/3of the cost of last year's trip. This year's trip cost $32
1. Write an equation that represents the cost of last years trip.
2.What was the cost of last year's trip
In the diagram, △ABC∼△CDE. Write an equation for line k
Answer:
Step-by-step explanation:
Line AB is parallel to line CD (k) so they have the same slope.
slope=m=(y2-y1)/(x2-x1)
m=(6-0)/(4-0)
m=6/4=1.5
y=mx+b, we know m=1.5 so
y=1.5x+b, and we know it passes through point (4,0) so we can solve for b
0=1.5(4)+b
0=6+b
b=-6 so line k is
y=1.5x-6
The rivers depth is three meters greater than its width. two time the rivers depth is equal to six meters more than twice its width.
PLZ write a system of equations and show ALL work
WOULD APPRECIATE A LOT
Answer:
d = w + 3 (first equation)
2d = 2w + 3 (second equation).
The second equation is equivalent to the first one.
In other words, two equations carry the same information as the first one, not more.
In the language of linear algebra, the system is dependent
HELPP ASAP I WILL GIVE 14 POINTS
Given:
A box-and-whisker plot of data set.
To find:
The percentage of the data values that are greater than 80.
Solution:
From the given box-and-whisker plot, it is clear that:
Minimum value = 8
First quartile = 60
Median = 68
Third quartile = 80
Maximum value = 92
We know that the 25% the data value are greater than or equal to third quartile because the third quartile divides the data in 75% to 25% and 80 is the third quartile.
Therefore, about 25% of the data values that are greater than 80.
what is the answer to these questions I will give brainly
Answer:
1) 12 2) 1/8
Step-by-step explanation:
1) 3 times 4 = 12
2) 1/2 times 1/4 = 1/8
help me please
i need x
Answer:
x=42
Step-by-step explanation:
Just do 24/32 on calculator to get .75
Then multiply .75 by 56, the side you are looking for to get 42
Select the correct statement about the function represented by the table. X y 1 9 2 36 WIN 144 4. 576 5 2304 O A. It is a linear function because the difference between each * and y value is constant O B. It is a linear function because the yvalues increase by an equal difference over equal intervals of x-values. O C. It is an exponential function because the yvalues increase by an equal factor over equal intervals of x-values. D. It is an exponential function because the factor between each - and y value is constant.
The function is an exponential function because the y values increase by an equal factor over equal intervals of x-values.
What is an equation?An equation is an expression that shows the relationship between two or more numbers and variables.
At point (1, 9):
9 = ab¹
At point (2, 36):
36 = ab²
b = 4, a = 2.25
y = 2.25(4)ˣ
The function is an exponential function because the y values increase by an equal factor over equal intervals of x-values.
Find out more on equation at: https://brainly.com/question/2972832
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what is the volume.
(pls hurry cause i have to turn in soon.)
64° (3x + 1)º Find the value of x. I need help!!
A 21
B 27
C 51
D 14
Answer:
Take away 1 from either side so the equation becomes 63=3x then divide both sides by 3 so it becomes 21=x which is your answer (option A)
Step-by-step explanation:
Javier is a graphic designer. He is asked to add a triangular shaped piece of art to a magazine cover. The requirement for the triangle includes sides with lengths 3 cm, 5 cm, and 9 cm. Can Javier draw a triangle with these dimensions? Explain how you know.
Answer:
11
Step-by-step explanation:
5x5+1=11
Answer:
Step-by-step explanation: the ghetto
A laptop has a listed price of $667.95 before tax. If the sales tax rate is 7.75%, find the total cost of the laptop with sales tax included.
Round your answer to the nearest cent, as necessary.
Answer:
$719.72
Step-by-step explanation:
pls answer correctly or i report you i really need to know this
the correct answer gets brain.liest
so answer correctly
pls answer correctly
pleaaaaaaaase
Answer:
final answer is d
Step-by-step explanation:
explanation multiply exponent on the outside by the inside.
btw you dont have to give me brainliest i dont really care for it i just like helping hope it's right good luck.!!;)
i need help answering this but also how to do it like step by step. i don’t understand this. (9 + 7x) - 7x
Answer: 9
Step-by-step explanation: so first you remove the ( ) because they’re useless in this then once you remove then Since two opposites add up to zero, remove them from the expression then you only get left with 9.
can someone help me with this please???
Answer:
diarrhea
Step-by-step explanation:
determine the length of side y, to the nearest tenth, in each of the following triangles. Please show work
can some one help me with this
Answer:
hi hi hi hib hi j mv
Step-by-step explanation:
Which of the following measures of variability can be used to compare two data sets? Select all that apply.3 Answers PLZ FAST ASAP
A: Mean
B:Interquartile range
C.Median
D: Mean Absolute Deviation (MAD)
E: Range
Answer:
Its Interquartile range, Mad and range
Step-by-step explanation:
3 What is the slope of the line that contains the coordinate points (8,-3) and (-2, 7)?
A -1
B -9/11
C -5/3
D -2/5
Answer:
c
Step-by-step explanation:
Two rabbits land on deserted Salt Island; they breed,and the number of rabbits on the island doubles every 4 weeks. Two other rabbits arrive on deserted Pepper Island; these rabbits triple every 4 weeks. At the end of the 12 weeks, one python arrives on each island. As each python grows, the number of rabbits it can eat each week doubles. The first week, each eats 1 rabbit, the second week, 2, and so forth. How long will it take the python to wipe out the rabbits on each island?
Answer:
It will take it 7 weeks
Step-by-step explantion