Answer:
4
Step-by-step explanation:
In this experiment, there will be a total of four experimental units. This is because there will be two options either baking soda or bleach and each one of these will have two experimental units when combined with either cold or warm water. Therefore, we can create the following units as such...
Baking Soda + Cold Water
Baking Soda + Warm Water
Bleach + Cold Water
Bleach + Warm Water
These would be the 4 total experimental units in this experiment.
The graph of y=-3x+2 is:
Answer:
C.
Step-by-step explanation:
Any equation is always infinite. You plug in values to receive values, and since there is an unlimited amount of numbers and values, the graph of the equation will show infinite solutions to the equation.
You can test this by trying to zoom out of your graphing calc. Notice that you'll never be able to get a definite max or min.
Find the lateral and total surface area for the cone. If necessary, round to the nearest tenth and leave theanswer in terms of t.25 cm22.2 cmThe lateral area isIr cm?The surface area isit cm?
The lateral surface area is 277.5 square centimeters , the total surface area is 400.71 square centimeters
Here, we want to find the lateral area and the surface area of the cone
Mathematically, the formula for the lateral area of a cone is given below;
\(S\text{ = }\pi rl\)where r represents the radius of the cone and l represents the slant height of the cone
In the diagram given, the slant height l of the cone is 25 cm while the diameter of the base of the cone is 22.2 cm
The formula for the radius of the cone = length of diamter/2
So the radius of the cone is 22.2 cm/2 = 11.1 cm
Thus the lateral area is;
\(S\text{ = }\pi\text{ }\times\text{ 11.1 cm }\times25cm=277.5cm^2\)Mathematically, the total surface area of a cone is the area of the base of the cone added to the area of the base of the cone
The area of the base of the cone is;
\(S\text{ = }\pi\times r^2\)The radius of the cone is 11.1 cm
Thus, the area of the base = π * 11.1^2 = 123.21 square centimeters
So the total surface area of the cone is (277.5 + 123.21) = 400.71 square centimeters
Rewrite 2/5 : 1/15 as a unit rate
6.1
Answer:
Step-by-step explanation:
\(\frac{2}{5} : \frac{1}{15}\\\)
LCM of the denominator = LCM ( 5 , 15 ) = 15
∴ Now we have to multiply LCM by both the fractions , we get ,
\(\frac{2}{5}.15 : \frac{1}{15}.15\\ 6 : 1\)
i need help with these answers!
Answer:
1. true
2. false
3. supplementary
4. vertical
5. it would be 5
Please break down how to do these pls
The value of given expressions is -4\(x^{-2}\) + 3\(y^{0}\) = 19 and 2\(x^{0}\)\(y^{-2}\) = 0.08
Simplifying an equation is simply another way of saying solving a math problem. When you simplify a phrase, you are attempting to write it in the simplest way feasible. In conclusion, there should be no more adding, subtracting, multiplying, or dividing to do.
Given expression 1. -4\(x^{-2}\) + 3\(y^{0}\) 2. 2\(x^{0}\)\(y^{-2}\)
Expression for x =2 and y=5
-4x-2 + 3y0
= -4(2)-2 + 3(5)0
= 16+3
=19
Now
2x0y-2
= 2(2)0x(5)-2
= 2 x (1/25)
= 2 x 0.04
= 0.08
Therefore the value of given expressions is -4\(x^{-2}\) + 3\(y^{0}\) = 19 and 2\(x^{0}\)\(y^{-2}\) = 0.08
To learn more about simplification visit
https://brainly.com/question/4356706
#SPJ1
fair coin is tossed repeatedly with independent trials. Find the number of tosses on average required for theHTHpattern to appear. Specifically A) - Determine the states of a Markov chain that simulates this problem. 3) - Write down the one-step transition probability matrix of the process. c) - Using the fundamental matrix notation, compute the average number of trials needed for the HTH pattern to appear
1. The states of the Markov chain are the number of consecutive tails at the end of the sequence, where 0 means ending in heads, 1 means ending in tails, 2 means ending in H-T, and 3 means ending in H-T-H.
2. The one-step transition probability matrix is,
P = [ 0.5 0.5 0 ]
[ 0.5 0 0.5 ]
[ 1 0 0 ]
3. The average number of trials needed for the HTH pattern to appear is 4/3.
Let's define the following states,
State 1: The most recent flip was T (tail).
State 2: The most recent flip was H (head), but the previous flip was T.
State 3: The most recent flips were HT (head followed by tail), but the previous flip was H and we are still waiting for the third flip to be H.
Note that if we reach state 3, we have successfully achieved the HTH pattern.
Thus, the one-step transition probability matrix for this Markov chain is:
P = [ 0.5 0.5 0 ]
[ 0.5 0 0.5 ]
[ 1 0 0 ]
Let F be the fundamental matrix, defined as F = (I-Q)^(-1), where Q is the submatrix of P obtained by removing the rows and columns corresponding to the absorbing state (in this case, state 3). Then, the (i,j)-th entry of F gives the expected number of times the process is in state j, given that it started in state i.
In our case, the fundamental matrix is,
Q = [ 0.5 0.5 ]
[ 0.5 0 ]
F = (I-Q)^(-1) = [ 4/3 2/3 ]
[ 2/3 4/3 ]
The average number of trials needed for the HTH pattern to appear, starting from state 1, is therefore F(1,3) = 4/3. This means that we can expect to see the HTH pattern after an average of 4/3 coin tosses.
To know more about trials, here
brainly.com/question/30889071
#SPJ4
I don't understand this!!!
Answer:
6 more times
Step-by-step explanation:
trust :)
what does the y equal in the system of equations y= 2x-7 and 5x+2=4
Answer:
y = -31/5
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtract Property of EqualityAlgebra I
Solving systems of equations using substitution/eliminationStep-by-step explanation:
Step 1: Define Systems
y = 2x - 7
5x + 2 = 4
Step 2: Solve for x
Define equation: 5x + 2 = 4Subtract 2 on both sides; 5x = 2Divide 5 on both sides: x = 2/5Step 3: Solve for y
Define equation: y = 2x - 7Substitute in x: y = 2(2/5) - 7Multiply: y = 4/5 - 7Subtract: y = -31/5Which of these pairs are like terms?20 x, 0.8 x17, 3 x14 x, 14 x20.5 x, 0.5 y
Solution:
Definition of like terms:
In algebra, like terms are terms that have the same variables and powers. The coefficients do not need to match. Unlike terms are two or more terms that are not like terms, i.e. they do not have the same variables or powers. The order of the variables does not matter unless there is a power
Therefore,
with the illustration above,
The final answer
\(20x,0.8x\)Lloyd kicked a football into the air. The graph below shows the path of the football.
As shown in the graph 35 yards is the maximum height of the football during the kick.
What is a graph?Graphs are an essential computing tool in mathematics. Both the nodes and the edges of a graph are referred to as graph elements. Graphs can be "directed" or "undirected," with only one direction in which nodes can traverse each other (either direction may be traversed from node to node).
A graph is an illustration of linked values in a multidimensional space, which is distinct from a chart. Graphs are helpful for examining the different relationships between specific data points.
The algorithm that is used to search a graph looks for the shortest route between two nodes. Finding the most optimised path is done by using an algorithm that considers the weight of each path on a graph.
Learn more about graph
https://brainly.com/question/17267403
#SPJ1
Full question:
Lloyd kicked a football into the air. The graph below shows the path of the football.
What was the maximum height of the football
during the kick?
A. 3 yards
B. 6 yards
C. 30 yards
D. 35 yards
HURRRY PLEASE ANSWER I ONLY HAVE 5 MINN which expressions are equivalent to - 72 + (-6.5) + 2.5z + 4y - 1.5
select all that apply.
A. 4y - 8 - 4.52
B. - 8 + 4y + 4.52
C. - 4.5z + 4y - 8
D. - 8 + 4y + (-4.52)
E. 4y + (-4.5z) - 6.5
Answer:
fghwjklpkjqkhb cghdbhn bwn x wxhw hwbmx
Step-by-step explanation:
Can someone please help me with this problem: solve 14 = 2a/9. A =
Answer:
\(a=63\)
Step-by-step explanation:
\(14=\frac{2a}{9}\)
Switch sides:
\(\frac{2a}{9}=14\)
Multiply both sides by 9:
\(\frac{9\cdot \:2a}{9}=14\cdot \:9\)
\(2a=126\)
Divide both sides by 2:
\(\frac{2a}{2}=\frac{126}{2}\)
\(a=63\)
Simplify the expression sin 2x+ sin x + cos2x - 1.
Answer:
Sin(2x)+sin(x)+cos(2x)-1
Step-by-step explanation:
IXL please help!...........
Answer:
12 cm
Step-by-step explanation:
20² = length² + 16²
length² = 400 - 256 = 144
length = 12
Check
20² - 16² = 12
Hopefully I'm right!!
pleaseee help
A job placement agency helps match job seekers with potential employers. The agency would like to design a simulation in order to help predict the likely job placement outcomes for job seekers based on historical trends and patterns. Which of the following is most likely to be a benefit of the simulation?
A. The computer simulation will be able to include more details and complexity than the real-world job placement process.
B. The computer simulation could be used to test hypotheses about patterns in the job placement process that are costly or time consuming to observe in reality.
C. The computer simulation will be able to precisely predict the real-world outcomes for each job seeker.
D. The computer simulation will remove the bias that may arise in the real-world job placement process.
Answer:
B.
Step-by-step explanation:
All computer simulations are designed to test a large number of different scenarios with various sets of data in order to understand each output that certain data generates and ultimately find the best solution. This is the overall main reason why simulations are created. The same applies in this scenario, this simulation will be used to test hypotheses about patterns in the job placement process that are costly or time-consuming to observe in reality. If such tests had to be conducted by actual people it would take months, years, or even decades to generate and analyze all the data.
Answer:
Its D
Step-by-step explanation:
You gotta believe me
if you can help would that would be amazing
Answer:
yes for the first one
because if you take number one for an example and use it for y
1^7*1^7*1^7=1 and 1^7*7*7=1
they both equal one
2.) \(\sqrt{x}\)
\(\sqrt[3]{x}\sqrt[6]{x}=\:x^{\frac{1}{3}}x^{\frac{1}{6}}=\:x^{\frac{1}{3}+\frac{1}{6}}\)
\(=x^{\frac{1}{3}+\frac{1}{6}}\)
join 1/3+1/6= 1/2
then you get the answer
\(\sqrt{x}\)
Step-by-step explanation:
brainlist pls:>
Promise Easy Points
Calculate the average monthly expenses for these individuals?
Kelsey spent $350 in May, $432 in June and $420 in July. Her average monthly expenses are:____
Michael spent $700 in April and May and $800 in June and July. His average monthly expenses are:____
$420+$350+$432=kelsey's monthly expenses
$700+$800=Micheal's Monthly expenses
Michael's average monthly expenses are $750.
What is the average?The average value in a set of numbers is the middle value, calculated by dividing the total of all the values by the number of values. When we need to find the average of a set of data, we add up all the values and then divide this total by the number of values.
Given that, Kelsey spent $350 in May, $432 in June and $420 in July.
Now, average monthly expenses are
(350+432+420)/3
= 1202/3
= 400.67
Michael spent $700 in April and May and $800 in June and July.
Here, (700×2+800×2)/4
= (1400+1600)/4
= 3000/4
= $750
Therefore, Michael's average monthly expenses are $750.
To learn more about an average visit:
https://brainly.com/question/11195029.
#SPJ2
Jocelyn has $1.95 in her pocket made up of 27 nickels and
dimes. How many of each type of coin does she have?
Answer:
she has twelve dimes hope this helps out
ILL GIVE U BRAINLIST OR WHATEVER
The nationwide percentage of Americans who invest in the stock market is usually taken to be 55%. Is this percentage different in Georgia? A survey and analysis among Georgia residents led to a test statistic of 1.75.
(b) What is the p-value to test if the proportion of Georgians who invest in the stock market is different than the nationwide average? (Use 4 decimals.)
Okay, here are the steps to find the p-value:
1) The nationwide proportion of Americans who invest in the stock market is 55% (0.55)
2) The test statistic for Georgia is 1.75
3) To calculate the p-value, we need to know the degrees of freedom (df) and the critical value of the test statistic.
4) The df = 1, since we're comparing a single proportion (Georgia) to a fixed value (national average).
5) The critical value at df = 1 and 95% confidence is 3.84 (for a two-tailed test)
6) Since the test statistic of 1.75 is less than 3.84, we look up 1.75 in tables to find the p-value.
7) For a test statistic of 1.75 and df = 1, the p-value is 0.1860.
So the p-value to test if the proportion of Georgians who invest in the stock market is different than the nationwide average is 0.1860.
Let me know if you have any other questions!
Okay, here are the steps to find the p-value:
1) The nationwide proportion of Americans who invest in the stock market is 55% (0.55)
2) The test statistic for Georgia is 1.75
3) To calculate the p-value, we need to know the degrees of freedom (df) and the critical value of the test statistic.
4) The df = 1, since we're comparing a single proportion (Georgia) to a fixed value (national average).
5) The critical value at df = 1 and 95% confidence is 3.84 (for a two-tailed test)
6) Since the test statistic of 1.75 is less than 3.84, we look up 1.75 in tables to find the p-value.
7) For a test statistic of 1.75 and df = 1, the p-value is 0.1860.
So the p-value to test if the proportion of Georgians who invest in the stock market is different than the nationwide average is 0.1860.
Let me know if you have any other questions!
For the given confidence level and values of x and n, find the following.
x=45, n=96, confidence level 95%
The confidence interval based on the given values (x = 45, n = 96, Confidence level = 95%.
The confidence level (95%), sample size (n = 96), and sample mean (x = 45), we can calculate the margin of error and the confidence interval. Here's how:
1. Margin of Error:
The margin of error represents the maximum expected difference between the true population parameter and the sample estimate. It depends on the confidence level and the standard deviation (which we don't have in this case).
Since the standard deviation is unknown, we can use the t-distribution to estimate it. With a sample size of n = 96, the degrees of freedom are (n - 1) = 95. Considering a 95% confidence level, the critical value for a two-tailed test is approximately 1.984 (referencing a t-distribution table or calculator).
The margin of error (E) can be calculated using the following formula:
E = critical value * (standard deviation / sqrt(n))
However, since we don't have the standard deviation, we can't compute the margin of error in this case.
2. Confidence Interval:
The confidence interval represents a range of values within which the true population parameter is likely to fall.
The confidence interval can be calculated using the formula:
CI = x ± (critical value * standard deviation / sqrt(n))
The confidence interval based on the given values (x = 45, n = 96, confidence level = 95%.
To know more about Confidence level.
https://brainly.com/question/20309162
#SPJ11
Write the equation
Please help!
Answer:
y=3x-8
Step-by-step explanation:
Allison traveled a distance of 130 miles in 2
1
hours. What was Allison's average driving
speed, in miles per hour?
Allison's average driving speed in miles per hour is 65.
What is speed?Speed is the ratio of distance and time.
It shows how fast an object is moving at a given time.
We have,
130 miles = 2 hours
Divide 2 on both sides.
130/2 miles = 1 hour
65 miles = 1 hour
Thus,
The average speed is 65 miles per hour.
Learn more about speed here:
https://brainly.com/question/7359669
#SPJ2
Please help
Me
I need to finish this I will give brainlest
Only the opposite edges of a rectangle's parallel and congruent angles are congruent. Although the sides and angles of a trapezoid may not always be identical, at least one set of its sides must be parallel.
what is parallel lines?In geometry, parallel lines are coplanar unlimited lines that never cross. In a particular three-dimensional space, the parallel planes represent the ones that never cross. Parallel curves are those with a constant minimum separation between them and no places of contact or intersection. In geometry, parallel lines are two lines which run in the exact same plane, evenly spaced apart, and hadn't cross. Both vertical and horizontal can be used. In commonplace items like train tracks, stacks of notebooks, and crossings for pedestrians, straight lines can be seen.
The form of Jackson's poster is best described as a rhombus. A quadrilateral with a rhombus has opposing sides that are parallel and all of its sides are equal. Additionally, it has congruent opposing angles. In addition to having parallel opposing sides, a parallelogram also has non-congruent sides and angles. Only the opposite edges of a rectangle's parallel and congruent angles are congruent. Although the sides and angles of a trapezoid may not always be identical, at least one set of its sides must be parallel.
To know more about parallel lines visit:
https://brainly.com/question/16701300
#SPJ1
An expression is shown.
12. 12. 12. 12 +7(3-3-3-3+3)
Which of the following shows this expression written using exponents?
А 4^12 + 7 (53)
B 4^12 + 7 (43+3)
C 12^4+7 (3^5)
D 12^4 +7 (3^4+3)
Answer:
im pretty sure its D :) hope this helps you out.
A spinner is divided into five colored sections that are not of equal size: red, blue, green, yellow, and purple. The spinner is spun several times, and the results are recorded below:
Spinner Results
Color Frequency
Red 4
Blue 4
Green 15
Yellow 9
Purple 3
Based on these results, express the probability that the next spin will land on blue or green or purple as a percent to the nearest whole number.
Step-by-step explanation:
OUT of 35 spins 4 + 15 + 3 = 22 were blue or green or purple
22/35 probability = 63%
4. In a lab experiment, 5300 bacteria are placed in a petri dish. The conditions are such that the number of bacteria is able to double every 12 hours. Write a function showing the number of bacteria after t hours, where the hourly growth rate can be found from a constant in the function.
Round all coefficients in the function to four decimal places. Also, determine the percentage of growth per hour, to the nearest hundredth of a percent.
The function representing the number of bacteria after t hours is N(t) = 5300 * (1 + 0.0592)^t, and the growth rate per hour is approximately 5.92%.
To represent the number of bacteria after t hours, we can use the exponential growth formula:
N(t) = N₀ * (1 + r)^t,
where N(t) is the number of bacteria after t hours, N₀ is the initial number of bacteria, r is the hourly growth rate, and t is the time in hours.
In this case, the initial number of bacteria is 5300, and the hourly growth rate can be determined from the doubling time of 12 hours. The growth rate can be calculated using the formula:
r = 2^(1/t_double) - 1,
where t_double is the doubling time in hours.
Substituting the given values, we have:
r = 2^(1/12) - 1 ≈ 0.0592.
Now we can write the function for the number of bacteria after t hours:
N(t) = 5300 * (1 + 0.0592)^t.
To determine the percentage of growth per hour, we can calculate the relative growth rate as a percentage:
percentage_growth = r * 100 ≈ 5.92%.
For more such questions on growth rate
https://brainly.com/question/29334875
#SPJ8
Graph the function.
h(x) = x^2+ 2x
Answer:
See attachment.
General Formulas and Concepts:
Algebra I
Reading a Cartesian planeCoordinates (x, y)FunctionsFunction NotationStep-by-step explanation:
The fastest way to graph a function is to plug it into a graphing calculator.
Graphing by hand would require a table of values, plotting those points, and connecting the dots.
We can also use the parent function x² and determine the graph.
-3 (2x - 1) ≤ x - 18
Answer:
x ≥ 3
Step-by-step explanation:
- 3(2x - 1) ≤ x - 18 ← distribute parenthesis on left side
- 6x + 3 ≤ x - 18 ( subtract x from both sides )
- 7x + 3 ≤ - 18 ( subtract 3 from both sides )
- 7x ≤ - 21
divide both sides by - 7, reversing the symbol as a result of dividing by a negative quantity.
x ≥ 3
hyfutdfyhjnkjbytxrytuyfguohiu
Proof that irrational numbers are uncountable
Answer:
If the set of all irrational numbers were countable, then R would be the union of two countable sets, hence countable. Thus the set of all irrational numbers is uncountable