Answer:
i think c isthe answér of it may be it is
Answer:
I and IV only
Step-by-step explanation:
I and IV only -- suggest a linear relationship between x and y.
A linear relationship has a line of best fit that can be drawn where most points are associated with the line.
Mr. smith thinks his new smoothie recipe is the best ever. He believes it gives people more energy and also helps them lose weight. In order to prove this, he sets up an experiment. He randomly assigns 1/3 of his subjects to drink 1 smoothie per day for 10 weeks. The next 1/3 are andomly assigned to drink one smoothie per week for 10 weeks. The rest are assigned to 1 large cup of water per day for 10 weeks.
What is the control group?
a) 1 smoothie per day
b) 1 smoothie per week
c) 1 large cup of water per day
d) no control group
Answer:
I'd say 1 smoothie per day
Step-by-step explanation:
a can of soda is placed inside a cooler. as the soda cools, its temperature in degrees celsius is given by the following function, where is the number of minutes since the can was placed in the cooler. find the temperature of the soda after minutes and after minutes. round your answers to the nearest degree as necessary.
The temperature of the soda after 20 minutes is approximately -18 degrees Celsius. To find the initial temperature of the soda, we can evaluate the function T(x) at x = 0.
Substitute x = 0 into the function T(x):
T(0) = -19 + 39e^(-0.45*0).
Simplify the expression:
T(0) = -19 + 39e^0.
Since e^0 equals 1, the expression simplifies to:
T(0) = -19 + 39.
Calculate the sum:
T(0) = 20.
Therefore, the initial temperature of the soda is 20 degrees Celsius.
To find the temperature of the soda after 20 minutes, we substitute x = 20 into the function T(x):
Substitute x = 20 into the function T(x):
T(20) = -19 + 39e^(-0.45*20).
Simplify the expression:
T(20) = -19 + 39e^(-9).
Use a calculator to evaluate the exponential term:
T(20) = -19 + 39 * 0.00012341.
Calculate the sum:
T(20) ≈ -19 + 0.00480599.
Round the answer to the nearest degree:
T(20) ≈ -19 + 1.
Therefore, the temperature of the soda after 20 minutes is approximately -18 degrees Celsius.
To learn more about function click here:
brainly.com/question/30721594
#SPJ11
INCOMPLETE QUESTION
A can of soda is placed inside a cooler. As the soda cools, its temperature Tx in degrees Celsius is given by the following function, where x is the number of minutes since the can was placed in the cooler. T(x)= -19 +39e-0.45x. Find the initial temperature of the soda and its temperature after 20 minutes. Round your answers to the nearest degree as necessary.
solve (-t-5)/3= (t-3)/5
Answer & Step-by-step explanation:
\(\frac{-t-5}{3}=\frac{t-3}{5}\)
Cross multiply.
\(-5t-25=3t-9\)
Subtract -3 on both sides.
\(-8t-25=-9\)
Add 25 on both sides.
\(-8t=16\)
Divide -8 on both sides.
\(t=-2\)
i need help plz help me
Answer:
3000g
hope this helps
find two numbers whose difference is 164 and whose product is a minimum.
Answer: The lowest possible product would be -6724 given the numbers 82 and -82.
We can find this by setting the first number as x + 164. The other number would have to be simply x since it has to have a 164 difference.
Next we'll multiply the numbers together.
x(x+164)
x^2 + 164x
Now we want to minimize this as much as possible, so we'll find the vertex of this quadratic graph. You can do this by finding the x value as -b/2a, where b is the number attached to x and a is the number attached to x^2
-b/2a = -164/2(1) = -164/2 = -82
So we know one of the values is -82. We can plug that into the equation to find the second.
x + 164
-82 + 164
82
Step-by-step explanation: Hope this helps.
absolute value of -15
Answer: 15
Step-by-step explanation:
-15 is 15 units to zero (answer should always be positive)
(a) Attendance at the Accra Sports Stadium was alysed by the General Secretary, Prosper Harrison Addo. The analysis demonstrated that spectators consisted of 70% males. If seven people are randomly selected from the spectators during a football match, What is the probability that 4 of them are males? (3 marks) i 11. Find the probability that at most 5 of them are females (4 marks)
a) The probability of randomly selecting 4 males out of 7 spectators, given that 70% of the spectators are males, can be calculated using the binomial probability formula.
b) To find the probability that at most 5 of the randomly selected spectators are females, we need to calculate the cumulative probability of selecting 0, 1, 2, 3, 4, and 5 females from the total number of selected spectators.
a) To calculate the probability of selecting 4 males out of 7 spectators, we can use the binomial probability formula:
P(X = k) = C(n, k) * p^k * (1 - p)^(n - k)
Where:
- n is the total number of trials (number of people selected)
- k is the number of successful trials (number of males selected)
- p is the probability of success in a single trial (probability of selecting a male)
- C(n, k) is the binomial coefficient, calculated as C(n, k) = n! / (k! * (n - k)!)
In this case, n = 7, k = 4, and p = 0.70 (probability of selecting a male). Therefore, the probability of selecting 4 males out of 7 spectators is:
P(X = 4) = C(7, 4) * (0.70)^4 * (1 - 0.70)^(7 - 4)
b) To find the probability that at most 5 of the selected spectators are females, we need to calculate the cumulative probability of selecting 0, 1, 2, 3, 4, and 5 females. This can be done by summing the individual probabilities for each case.
P(X ≤ 5 females) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3) + P(X = 4) + P(X = 5)
To calculate each individual probability, we use the same binomial probability formula as in part a), with p = 0.30 (probability of selecting a female).
Finally, we sum up the probabilities for each case to find the probability that at most 5 of the selected spectators are females.
To learn more about probability Click Here: brainly.com/question/31828911
#SPJ11
Given vector u = ⟨−3,−2⟩ and v = ⟨1,−5⟩,determine the value of u - 2v in component form.
The component form of the linear combination of the two vectors is u - 2v = < -5, 20>
How to find the vector u - 2v?Here we have the two vectors: u = <-3, -2> and v = <1, -5> We want to determine the value of the linear combination:
u - 2v
To do that we just add the correspondent components, then we get:
u - 2v = <-3, -2> - 2*<1, -5>
= <-3, -2> - <2*1, 2*-5>
= <-3, -2> - <2, -10>
= < -3 - 2, -2 -(-10)>
= < -5, 20>
That is the component form of the linear combination.
Learn more about vector on:
https://brainly.com/question/25705666
#SPJ1
A project has five activities with the durations (days) listed
below:
Activity
Precedes
Expected
Duration
Variance
Start
A, B
-
-
A
C
40
0.31
B
E
32
0.25
C
D
21
0.35
The critical path is the path with the longest duration, which in this case is A -> B -> D -> E with a duration of 11 days.
To determine the critical path of the project, we need to find the longest path of activities that must be completed in order to finish the project on time. This is done by calculating the earliest start time (ES) and earliest finish time (EF) for each activity.
Starting with activity A, ES = 0 and EF = 4. Activity B can start immediately after A is complete, so ES = 4 and EF = 7. Activity C can start after A is complete, so ES = 4 and EF = 6. Activity D can start after B is complete, so ES = 7 and EF = 9. Finally, activity E can start after C and D are complete, so ES = 9 and EF = 11.
The variance for each activity is also given, which allows us to calculate the standard deviation and determine the probability of completing the project on time. The critical path is the path with the longest duration, which in this case is A -> B -> D -> E with a duration of 11 days.
Using the expected durations and variances, we can calculate the standard deviation of the critical path. This information can be used to determine the probability of completing the project on time.
Know more about earliest start time here:
https://brainly.com/question/31043653
#SPJ11
HELP PLEASE
its math
Thank you
Answer:
Option 2
Step-by-step explanation:
For two angles to be adjacent they need to have a common side/ray and a common vertex!
Hope this helps!!!
Answer:
Step-by-step explanation:
In geometry, two angles are adjacent if they have a common side and a common vertex. In other words, adjacent angles are directly next to each other and do not overlap.
->No, the two indicated angles do not share common vertex
a. Describe the three ways in which two lines may be related
a. Which of the following is the correct way to relate two lines? Select all that apply.
A. congruent
B. skew
C. parallel
D. intersecting
E. collinear
7. If csc 0 = 3, find the exact values of the five remaining trig functions. Your answer ANSWER ASAP
Answer: sin: \(\frac{1}{3}\) cos: \(\frac{\sqrt{8} }{3}\) tan: \(\frac{\sqrt{8} }{8}\) csc: 3 sec: \(\frac{3\sqrt{8} }{8}\) cot: \(\sqrt{8}\)
Step-by-step explanation: We know that csc is a reciprocal of sinθ so csc3 is sin 1/3. Then draw the right triangle HYP=3 OPP=1 ADJ= \(\sqrt{3x^{2} -1}\) =\(\sqrt{8}\)
NEED HELP ASAP
Vector Vector P Q has an initial point at (3, 3) and its terminal point is at (5, 7).
Vector Vector R S has an initial point at (4, –6) and its terminal point is at (1, –5).
What is the component form of vector Vector P Q minus R S?
___________ , _____________
Answer:
5, 3
Step-by-step explanation:
correct on edge2020
Answer:
(5, 3)
Step-by-step explanation:
late but still lol
What is -(-2.5)?
This thing is making me type more words so there.
Answer: 2.5
Step-by-step explanation:
A negative of a negative is a positive.
Answer:
2.5
Step-by-step explanation:
Just make everything inside the parentheses opposite of what it is
-2.5 becomes 2.5 because double negative
graph y = x + 9 y = -1/3 + 5
Answer:
-3,6
Step-by-step explanation:
PLEASE HELP HURRY
Tina is planning to paint a wood box. She is using small paint cans
that cover 20 square feet of surface area. How many cans will Tina need in order
to paint the outside of her wood box? Answer without units.
3 ft.
3 ft.
8 ft.
Answer:
6 cans.
Step-by-step explanation:
total of 114 square foot of surface area
Convert 168 pounds to kilograms. Use 1 kg = 2.2 lb.
Round your answer to the nearest tenth.
(……) kg
Answer:
about 76.36 kgis the answer
Step-by-step explanation:
168 divided by 2.2 is 76.36.
Low Carb Diet Supplement, Inc., has two divisions. Division A has a profit of $230,000 on sales of $2,120,000. Division B is able to make only $34,700 on sales of $381,000.
Compute the profit margins (return on sales) for each division. (Input your answers as a percent rounded to 2 decimal places.)
Division A= ______%
Division B= ______%
___________________________________________________________________________________________________________________________________________________
Polly Esther Dress Shops Inc. can open a new store that will do an annual sales volume of $1,220,400. It will turn over its assets 2.7 times per year. The profit margin on sales will be 7 percent.
What would net income and return on assets (investment) be for the year? (Input your return on assets answer as a percent rounded to 2 decimal places.)
Net Income=
Return on Assets= __________ %
The profit margins (return on sales) for each division are approximately :Division A = 10.85%,Division B = 9.11% and The calculations for the year would be:Net Income = $85,428,Return on Assets = 18.9%.
To compute the profit margins (return on sales) for each division, we divide the profit by the sales and multiply by 100 to express the result as a percentage.
For Division A:
Profit Margin = (Profit / Sales) * 100
Profit Margin = ($230,000 / $2,120,000) * 100
Profit Margin ≈ 10.85%
For Division B:
Profit Margin = (Profit / Sales) * 100
Profit Margin = ($34,700 / $381,000) * 100
Profit Margin ≈ 9.11%
To calculate the net income and return on assets for Polly Esther Dress Shops Inc., we use the given information.
Net Income = Profit Margin * Sales
Net Income = 7% * $1,220,400
Net Income = $85,428
Return on Assets = Profit Margin * Asset Turnover
Return on Assets = 7% * 2.7
Return on Assets = 18.9%
For more such questions on profit,click on
https://brainly.com/question/29785281
#SPJ8
ALGEBRA Farha Gadhia has applied for a $100,000 mortgage loanat an annual interest rate of 6%. The loan is for a period of 30 yearsand will be paid in equal monthly payments that include interest.Use the monthly payment formula to find the payment
Mortgage loan= P = $100,000
Rate= r = 6% and the rate interest is
\(r=\frac{6}{100}=0.06\)For a period of 30 years, i.e
\(n=12\times30=360\text{ months}\)The formula to find monthly mortgage payment is
\(undefined\)its a fill in the blank, we have to find out what number could go in the blank to make no values, one value, and all values. I have the no value and all values filled, but i need the one value. plz help, its in the picture its the last question, if not that is okay, but i would appreciate it if you could help me..
Answer:
wsp "audrey"
Step-by-step explanation:
blank is -4
I need help with this question
loss = 279
lose petcent = 15%
simplify (1/2)³x(1/2)² and write in exponential form
Answer:
To simplify (1/2)³x(1/2)², we can multiply the coefficients and add the exponents with the same base:
(1/2)³x(1/2)² = (1/2)^(3+2) = (1/2)^5
Therefore, (1/2)³x(1/2)² simplified is equal to (1/2)^5, which can also be written as 1/32 in fraction form.
Step-by-step explanation:
In order to multiply we use the formula for indices' multiplication that is
\( {n}^{a} \times {n}^{b} = {n}^{a + b} \)
Hence,
\({( \frac{1}{2} )}^{3}( { \frac{1}{2}}^{2}) = {( \frac{1}{2} )}^{5} \)
\( ( \frac{{1}^{5} }{{2}^{5} } ) = {2}^{ - 5} \)
The probability that a randomly selected statistics textbook will weigh at most x lbs, the number you computed above and the weight of one textbook, is 0.80. Compute and interpret the z-score associated with this probability.
Answer:
0.842
Step-by-step explanation:
Give that:
Probability that statistics book will weigh at most x lbs ; this can be expressed as ;
P(x ≤ x)
Hence,
P(Z ≤ x) = 0.8
Hence, the Z score associated with a probability of P(Z ≤ x) = 0.8 can be obtained using a Z probability calculator :
Hence, Zscore = 0.842
Hence, the standardized score the weight is 0.842
32. Mariah bought a shirt for $28.50 and a
belt. The total cost was $45.50. Which
of the following equations can be used
to find the cost of the belt?
A 28.50 +b=45.50
B 45.50 + b = 28.50
Cb= 28.50 - 45.50
D b= 28.50 x 45.50
Answer:
The correct answer is A because subtract 28.50 from 45.50 and you get the answer of 17$ for the belt
e
ath!
0 of 8
3. Mark-up, Discount,
Change Assignment
POINTS
TODAY
POINTS
THIS WEEK
GAME
CREDITS
$ $
$
First try was incorrect
Belvedere goes to the store and buys a soccer ball for $50. The store
is running a discount of 10%. What is the price of the soccer ball after
the discount?
Answer:
$45 after the discount
Step-by-step explanation:
Set up a proportion.
\(\frac{x}{50} = \frac{10}{100}\) $50 is the total amount and make the 10% a decimal
x(100) = 50(10)
100 = 500
100 ÷ 500
x = 5 <-- We have to subtract this amount from the total
$50 - $5 = $45 <-- total after the discount
Hope this helps!!
Please helplike fr I don’t understand :((
It’s for question 4
Answer:
$6,000
Step-by-step explanation:
We have to start by finding the conversation rate.
So, we can divide 9,600 by 8 to find how much the ratio is being multiplied by.
9,600 / 8 = 1200
Now that we know the conversion rate, we can multiply by five to find how much the expenses really cost, according to the ratio.
1200 * 5 = 6000
Their expenses this month are 6000
Which equation has exactly one solution in common with the equation y=6x-2?
A. 18x - 3y = 6
B. 1/2y = 3x - 2
C. 2y = 4x - 12
D. 18x - 12 = 3y
Answer:
A. 18x - 3y = 6
Step-by-step explanation:
By taking 3 common from the terms 18x and 3y we get,
3 (6x-3y) = 6
or, 6x - y = 6/3
or, 6x - y = 2
And,
The equation becomes,
y = 6x - 2
The equation has exactly one solution in common with the equation y=6x-2 will be 18x - 3y = 6. The correct option is A.
What is a system of equations?A finite set of equations for which common solutions are sought is referred to in mathematics as a set of simultaneous equations, often known as a system of equations or an equation system.
An equation is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.
By taking 3 commons from the terms 18x and 3y we get,
3 (6x-3y) = 6
6x - y = 6/3
6x - y = 2
The equation becomes,
y = 6x - 2
Therefore, the equation has exactly one solution in common with the equation y=6x-2 will be 18x - 3y = 6. The correct option is A.
To know more about equations follow
https://brainly.com/question/2972832
#SPJ2
Consider an MDP with 3 states, A, B and C; and 2 actions Clockwise and Counterclockwise. We do not know the transition function or the reward function for the MDP, but instead, we are given with samples of what an agent actually experiences when it interacts with the environment (although, we do know that we do not remain in the same state after taking an action). In this problem, instead of first estimating the transition and reward functions, we will directly estimate the Q function using Q-learning.
By estimating the Q-function directly using Q-learning and updating it based on observed samples, we bypass the need to explicitly estimate the transition and reward functions. This approach allows us to learn the optimal policy without prior knowledge of the underlying dynamics of the MDP.
In Q-learning, the Q-function estimates the expected cumulative reward for taking a particular action in a given state. It is updated iteratively based on the agent's experiences. In this scenario, although we do not know the transition and reward functions, we can still use Q-learning to directly estimate the Q-function.
We initialize the Q-values arbitrarily for each state-action pair. Then, the agent interacts with the environment, taking actions and observing the resulting states and rewards. With these samples, we update the Q-values using the Q-learning update rule:
Q(s, a) = Q(s, a) + α [r + γ max(Q(s', a')) - Q(s, a)]
Here, Q(s, a) represents the Q-value for state s and action a, r is the observed reward, s' is the next state, α is the learning rate, and γ is the discount factor.
We repeat this process, updating the Q-values after each interaction, until convergence or a predetermined number of iterations. The Q-values will eventually converge to their optimal values, indicating the optimal action to take in each state.
For more such questions on transition
https://brainly.com/question/31581225
#SPJ8
Find the equation of a line perpendicular to y = -3 passing through the coordinate (2, 6).
Answer:
for two lines to be perpendicular m2 = -1/m2
using the formula y= mx+c
m1 = 0
for the lines to be perpendicular to each other(m2 = -1/0 )
Note: -1/0 is undefined
using the formula y-y1 = m(x-x1)
y -6 = -1/0(x-2)
cross multiply
0 = -1(x-2)
0 = -x+2
x =2(equation of the line)
Jon drives a total of of 44 miles each day to to take his children to and from school. The children go to school 5 days a week. Jobs vehicle gets 27 miles per gallon of gas. About how many gallons of gas does jon need to take his children to and from school each week