The number of combination made from the given refrigerators, stoves, and microwaves have 378.
Define the meaning of the term combination?Combinations are mathematical techniques that count the number of potential configurations for a set of elements when the order of a selection is irrelevant. You could choose the components of mixes in any order.Now, for the stated question-
You can choose from
six refrigerators, seven stoves, and nine microwaves, when creating your new kitchen.Now, you will only select 1 object from all three.
The various appliance combinations you may have;
= ⁶C₁ . ⁷C₁. ⁹C₁
= 6×7×9
= 378
Thus, the number of combination made from the given refrigerators, stoves, and microwaves have 378.
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Which statement is true regarding the graphed functions?
f(0)=g(0) f(-2)=g(-2) f(0)=g(-2) f(-2)=g(0)
Answer:
f(-2)=g(-2)
Step-by-step explanation:
Find an autonomous differential equation with all of the following properties: - equilibrium solutions at y=0 and y=9, - y ′
>0 for 0
<0 for −[infinity]
dy
=
To find an autonomous differential equation with the specified properties, we can start by considering the equilibrium solutions at y=0 and y=9. For an equilibrium solution, the derivative y' should be equal to 0.
Let's define the autonomous differential equation as follows:
dy/dt = f(y)
To have equilibrium solutions at y=0 and y=9, we need to ensure that f(y) is equal to 0 at these points. Thus, we have:
f(0) = 0
f(9) = 0
Next, we want y' to be positive for y between 0 and 9, and negative for y less than 0 or greater than 9. We can achieve this by introducing a non-linear term involving y^2 in the function f(y).
One possible autonomous differential equation that satisfies these conditions is:
dy/dt = y(9 - y)
This equation has equilibrium solutions at y=0 and y=9 since the right-hand side becomes zero at these points. Moreover, when y is between 0 and 9, the expression y(9 - y) is positive, resulting in a positive derivative y'. When y is less than 0 or greater than 9, the expression becomes negative, leading to a negative derivative y'.
Therefore, the autonomous differential equation dy/dt = y(9 - y) satisfies all the specified properties.
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Please express each of the following formula in big-O notation. (A) n
3
+10
∗
2
n
(B) n
2
+3log
2
n (C) 5n
∗
log
2
n+2n
2
(D) 1+2+3+…+(n−1)+n (E) What is the worst-case big-O complexity of the following code fragment? int ans =0; for(int i=0;i
(A) n3+10*2n expressed in big-O notation is O(n3).
(B) n2+3log2n expressed in big-O notation is O(n2).
(C) 5nlog2n+2n2 expressed in big-O notation is O(n2).
(D) 1+2+3+…+(n−1)+n can be simplified as 1+2+3+…+n and using the formula for the sum of an arithmetic series, we have n(n+1)/2. Therefore, its big-O notation is O(n2).
(E) The code fragment can be written as:
for(int i=0;i< n;i++){for(int j=0;j< n;j++){ans++;}}
This code fragment has two nested loops.
The outer loop executes n times, while the inner loop also executes n times for each iteration of the outer loop.
Therefore, the code fragment has a time complexity of O(n2) in the Worst case.
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Find the solution to the system. Write your solution as an ordered pair (x,y) with no spaces, no solution, or infinitely many. 3x-2y=9 and x-y=5
Answer:
(-1,-6)
Step-by-step explanation:
Use substitution
y=x-5
3x-2(x-5)=9
3x-2x+10=9
x=-1
Plug it in
(-1)-y=5
-y=6
y=-6
Miguel tells his teacher that One-fifth is the same as 20%. Which best justifies Miguel’s answer?
Answer:
5 goes into 100 twenty times, so 20% is the answer
hope it helps! :)
Step-by-step explanation:
Answer:
5 goes into 20 four times, and 5 times 4 is 20, so 20% is the answer.
Step-by-step explanation:
Took the test!
Which of the following does not approve two angles to be congruent. Vertical angles Theorem, Corresponding Angles Postulate, alternate interior Angles theorem, Same-Side Interior Angles Theorem? (Can anyone please help me.?)
Answer:
Same side interior angles theorem
Step-by-step explanation:
Same-Side Interior Angles Theorem: Sum of the same side of interior angles of parallel lines are supplementary
Answer:
I think it is A
Step-by-step explanation:
Hope this helped have an amazing day!
if f is a quadratic function such that f(0) = 4 and
∫ f(x) /x² (x +1)³ dx is a rational function, find the value of f '(0).
To find the value of f'(0), we need to determine the quadratic function f(x) that satisfies the given conditions. By using the given information and integrating the function, we can find the value of f'(0).
Let's assume the quadratic function f(x) to be f(x) = ax^2 + bx + c, where a, b, and c are constants.
Given that f(0) = 4, we can substitute x = 0 into the function:
f(0) = a(0)^2 + b(0) + c = c = 4
Therefore, the quadratic function becomes f(x) = ax^2 + bx + 4.
Now, we need to integrate the function ∫ f(x) / x^2(x + 1)^3 dx and determine if it is a rational function.
∫ f(x) / x^2(x + 1)^3 dx = ∫ (ax^2 + bx + 4) / x^2(x + 1)^3 dx
To integrate this expression, we can use partial fraction decomposition. However, since the question asks for the value of f'(0), we can ignore the constant term (4) as it does not affect the derivative.
Now, we have ∫ (ax^2 + bx) / x^2(x + 1)^3 dx.
To determine if the integral is a rational function, we need to check if the degree of the numerator (2) is less than the degree of the denominator (5).
Since the degree of the numerator is less than the degree of the denominator, the integral is a rational function.
Therefore, the value of f'(0) exists and can be determined.
However, the value of f'(0) cannot be directly calculated with the given information. Further information or additional conditions are needed to find the specific value of f'(0).
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a radioactive sample contains 3.00 g of pure 11c, which has a half-life of 20.4 min. (a) how many moles of 11c are present initially?
The number of mole of pure 11C (carbon-11) initially present is 0.2727 mole
Description of moleThe mole of a substance is related to it's mass and molar mass according to the following equation
Mole = mass / molar mass
With the above formula, we can obtain the number of mole of pure 11C. Detail below:
How to determine the mole of 11CFrom the question given, the following data were obtained:
Molar mass of 11C = 11 g/molMass of 11C = 3 gMole of 11C =?Mole = mass / molar mass
Mole = 3 / 11
Mole = 0.2727 mole
Therefore, the number of mole of pure 11C initially present is 0.2727 mole
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Angle A and B are supplementary. I m∠A = 143°, find m∠B
I don't understand the question.
Answer:
b=37
Step-by-step explanation:
if the angles are supplementary then they will add up to equal 180.
to find b you just subtract 143 from 180 to get 37
6. All of the students in a classroom list their birthdays.
a. Is the birthdate, b, a function of the student, s? Explain your reasoning.
b. Is the student, s, a function of the birthdate, b? Explain your reasoning.
Answer:
is the birthdate
Step-by-step explanation:
because very student in the classroom need to give their day to be recorded
HELP NOW FOR MEGA POINTS
Which statement below about the graph of f(x)=-log(x+4)+2 is true?
1) f(x) has a y-intercept at (0,2)
2) −f(x) has a y-intercept at (0,2)
3) As x → ∞, f(x) → ∞.2)
4) x → −4, f(x) → ∞
SHOW WORK
Answer:
4 IS THE ANSWER MATE
Step-by-step explanation:
Absolutely, I can do that!
Let's take a look at each statement:
1) f(x) has a y-intercept at (0,2)
To find the y-intercept, we need to set x to 0 and solve for y. Plugging in x = 0 into the equation for f(x), we get:
f(0) = -log(0+4) + 2
f(0) = -log(4) + 2
f(0) = -0.602 + 2
f(0) = 1.398
Since the y-coordinate of the y-intercept is 1.398, not 2, this statement is false.
2) The function -f(x) has a y-intercept at (0,2)
Since the negative sign in front of f(x) reflects the graph of f(x) across the x-axis, we can determine the y-intercept of -f(x) by taking the opposite of the y-intercept of f(x). Since the y-intercept of f(x) is not 2, this statement is also false.
3) As x approaches positive infinity, the function f(x) approaches negative infinity.
The function f(x) is a logarithmic function with a negative coefficient, which means it approaches negative infinity as x approaches positive infinity. Therefore, this statement is true.
4) As x approaches -4 from the right, the function f(x) approaches negative infinity.
As x approaches -4 from the right, the value of f(x) becomes more and more negative without bound, which means that f(x) approaches negative infinity as x approaches -4 from the right. Therefore, this statement is also true.
In summary, statements (1) and (2) are false, while statements (3) and (4) are true.
I am confused. I believe it is 5(x^2+2)=45
Here is the problem: 5 times the square of a number and 2 is 45.
how much work is done when a 100 lb rock is lifted to a height of 3 ft?
A. The work done is 300 ft-lbs when a 100 lb rock is lifted to a height of 3 ft.
To calculate the work done, we can use the formula: Work = force x distance x cos(Ф).In this case, the force is the force of gravity acting on the rock, which can be calculated using the formula:
force = m * g
where m is the mass of the rock and g is the acceleration due to gravity (32.17 ft/s^2).
force = 100 lb * 32.17 ft/s^2 = 3,217 ft-lbs
The distance is the height to which the rock is lifted, which is 3 ft.
The angle of the rock to the vertical is 90 degrees, so cos(90) = 0.
So,
Work = force x distance x cos(theta) = 3,217 ft-lbs * 3 ft * 0 = 300 ft-lbs
So, the work done is 300 ft-lbs.
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Use the function a = m + 4 to find the value of a when m = 3.
a =
Answer:
a=m+4
a=3+4
a=7
Step-by-step explanation:
hope it helps
mark as brainlist
Answer:
a = 7
Step-by-step explanation:
a = 3 + 4
5x + 4y = 9 4x + 41 Your answer
Answer:
4.5 x − 5.2 = 4
Step-by-step explanation:
Using the Pigeon Hole Principle, prove that there exists a positive integer n so that (44^n) - 1 is divisible by 7.
The Pigeon Hole Principle states that if there are more objects than containers, then at least one container must contain more than one object. To prove the given statement, we must demonstrate that there exists a positive integer n so that (44^n) - 1 is divisible by 7.
To begin, let's consider the numbers 44^1, 44^2, 44^3, 44^4, and so on. As these numbers are all positive integers, they can be considered as a set of objects. Now, consider the numbers 7, 14, 21, 28, and so on. These can be considered as containers, each one containing one object from the above set.
Since 44^1 is 7, the first container is filled. Furthermore, 44^2 is equal to 7 x (44^1) + 7. Thus, the second container is filled. Similarly, the third container is filled since 44^3 is equal to 7 x (44^2) + 7. This pattern continues, with the nth container being filled with (44^n) - 1.
Therefore, there exists a positive integer n so that (44^n) - 1 is divisible by 7. This satisfies the Pigeon Hole Principle and proves the statement.
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You invested 12,000 in an account at 2.3% compounded monthly. How long will it take you to get to 20000
It will take 22 years and 3 months to get the present value of $12,000 invested at 2.3% compounded monthly to get to $20,000 (future value).
How the period is determined:The period that it will take the present value to reach a certain future value can be determined using an online finance calculator with the following parameters for periodic compounding.
I/Y (Interest per year) = 2.3%
PV (Present Value) = $12,000
PMT (Periodic Payment) = $0
FV (Future Value) = $20,000
Results:
N = 266.773
266.73 months = 22 years and 3 months (266.73 ÷ 12)
Total Interest = $8,000.00
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5. Of the 3 times Buddy kisses Jovie while they
gre ice skating he missed once. What is this
number written as a fraction?
Answer:
2/3 times he kissed her 1/3 times he missed
Step-by-step explanation:
Hit or miss hehe
suppose i roll a fair 6-sided die for four times what is the probability that i get at least one six
If you roll a fair 6-sided die, each of the 6 outcomes (1, 2, 3, 4, 5, 6) is equally likely, with a probability of 1/6. This means that the probability of rolling a particular number, such as 6, is 1/6.
Rolling the die 4 times gives 6 to the power of 4 = 1296 possible outcomes. The probability of not rolling a 6 in one roll is 5/6, so the probability of not rolling a 6 in four rolls is (5/6)^4. This can be calculated as: 5/6 × 5/6 × 5/6 × 5/6 = 625/1296. To find the probability of rolling at least one 6, we can use the principle of imputed probability.
This means that the probability that an event will occur is equal to 1 minus the probability that the event will not occur. In this case, the probability of rolling at least one 6 is 1 - (the probability of rolling no 6). So 1 - 625/1296 = 671/1296 = about 0.518.
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Jose's mom gave him
$
40
for cutting their grass. He used the money to buy a
$
10. 75
game and two snacks that cost
$
3. 25
each. Joe also bought a bouquet of flowers for his mom. If Joe went home with
1
4
of the money his mom gave him, how much did the flowers cost?
The drama club charges $3 admission to the one-act play festival. Their expenses are $115. In order for the club to make exactly $110 after expenses, how many people must attend the festival? a. 39 b. 75 c. 114 d. 152
Answer:
b. 75
Step-by-step explanation:
Calculation for how many people must attend the festival
Using this formula
Numbers of people to attend the festival=Expenses/Charges
Let plug in the formula
Numbers of people to attend the festival=($115+$110)/$3
Numbers of people to attend the festival=$225/$3
Numbers of people to attend the festival= 75 people
Therefore the numbers of people that must attend the festival is 75
The radius of a circle is 14 in. Find its circumference in terms of π/pi.
schoology
Answer:
196π
Step-by-step explanation:
14^2=196
196×π
=196π
a researcher wishes to determine whether the salaries of professional nurses employed by private hospitals are higher than those of nurses employed by government-owned hospitals. she selects a random sample of nurses from each type of hospital and calculates the means and standard deviations of their salaries. private hospital nurses had a mean salary of $26,800 (sample of 100 nurses), while the government-owned hospital nurses had a mean salary of $25,400 (sample of 800). at the 0.01 level, can she conclude that the private hospitals pay more than the government hospitals? it is known that salaries vary normally and and it is reasonable to assume there is no difference in variability of salary between the two groups.
the researcher can conclude that private hospitals pay more than government-owned hospitals based on the sample data.
To test whether private hospitals pay more than government-owned hospitals, we can use a two-sample t-test with equal variances.
The null hypothesis is that there is no difference in mean salary between the two groups:
H0: μprivate = μgovernment
The alternative hypothesis is that private hospitals pay more than government-owned hospitals:
Ha: μprivate > μgovernment
We can use a significance level of 0.01, which corresponds to a critical value of t = 2.364 (with degrees of freedom = 898).
First, we need to calculate the pooled standard deviation:
Sp = sqrt(((n private - 1)s^2private + (n government - 1)s^2government) / (n private + n government - 2))
where n private and n government are the sample sizes, s^2private and s^2government are the sample variances, and s^2pooled is the pooled variance.
Plugging in the values, we get:
Sp = sqrt(((100-1) * 186^2 + (800-1) * 176^2) / (100 + 800 - 2)) = 176.43
Next, we calculate the test statistic:
t = (x(bar)private - x(bar)government) / (Sp * sqrt(1/n private + 1/n government))
where x(bar)private and x(bar)government are the sample means.
Plugging in the values, we get:
t = (26,800 - 25,400) / (176.43 * sqrt(1/100 + 1/800)) = 3.14
Since our test statistic (3.14) is greater than the critical value (2.364), we reject the null hypothesis and conclude that private hospitals pay more than government-owned hospitals at a significance level of 0.01.
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−2y−8+4yminus, 2, y, minus, 8, plus, 4, y ?
Answer:
-16+4y
Step-by-step explanation:
A floor has a shape of a trapezium Gary is going to paint the floor each 5 litre tin of paint cost 21.99 1 litre of paint covers an area of 2.5m
Answer:
Step-by-step explanation:
step 1 : finding the area of a floor using trapezius area formula
A= \(\frac{(10+14)*6}{2} = \frac{24*6}{2} =72 m^{2} \\\)
step 2 : the problem said 1 litre of paint convers an area of 2.5 m^2, so let's calculate how many liters of paint are needed to paint the floor
\(\frac{72 m^2}{2.5 m^2} = 28.8 litre\\\)
so we need 28.8 litre to paint the floor
step 3 : Each tin is 5 litre of paint so let's calculate how many tins do we need
n=\(\frac{28.8}{5} = 5.76 \\\)
we can't by 5.76 tins so it's 6 tins
step 4 : Each tin costs 21.99 and now we calculate how much 6 tins cost for us
cost = 6 × 21.99 = 131.94
step 5 : Gary has a budget of 150 and the total cost is 131.94. So, Gary has enough money to buy all the paint he needs.
Lydia has a bag that contains orange chews, cherry chews, and peach chews. She performs an experiment. Lydia randomly removes a chew from the bag, records the result, and returns the chew to the bag. Lydia performs the experiment 62 times. The results are shown below:
A orange chew was selected 25 times.
A cherry chew was selected 24 times.
A peach chew was selected 13 times.
Based on these results, express the probability that the next chew Lydia removes from the bag will be orange or peach as a percent to the nearest whole number.
Answer:
The probability of selecting an orange chew is 25/62, and the probability of selecting a peach chew is 13/62. To find the probability that the next chew Lydia removes from the bag will be orange or peach, we add these probabilities:
P(orange or peach) = P(orange) + P(peach) = 25/62 + 13/62 = 38/62
To express this probability as a percent, we divide the numerator by the denominator, then multiply by 100:
P(orange or peach) = 38/62 = 0.6129...
0.6129... × 100 ≈ 61
Therefore, the probability that the next chew Lydia removes from the bag will be orange or peach, expressed as a percent to the nearest whole number, is 61%
A baker has 12 pounds of almonds. She puts them in bags, so that each bag has the same weight. Clare and Tyler drew diagrams and wrote equations to show how they were thinking about 12 divideDid divide by 6
Suppose you are given the following information: (15 marks)
Q = 200 + 3P
0d = 400 - P
where Q' is the quantity supplied, Qd is the quantity demanded and P is price.
From this information compute equilibrium price and quantity. 6 marks Now suppose that a tax is placed on buyers so that Q° = 400 - (2P + T) where T is taxes. If T = 20, solve for the new
equilibrium price and quantity. (Note: You are solving for the equilibrium price for sellers and buyers).
To find the equilibrium price and quantity, we need to set the quantity supplied equal to the quantity demanded and solve for the price.
Given:
Q = 200 + 3P (quantity supplied)
Qd = 400 - P (quantity demanded)
Step 1: Set Q = Qd
200 + 3P = 400 - P
Step 2: Solve for P
4P = 200
P = 50
Step 3: Substitute P = 50 back into the equations to find the equilibrium quantity.
Q = 200 + 3(50)
Q = 350
Therefore, the equilibrium price is $50 and the equilibrium quantity is 350.
Now, let's consider the case with a tax on buyers.
Given:
Q° = 400 - (2P + T) (quantity demanded after tax)
Step 1: Set Q° = Q (quantity demanded after tax = quantity supplied)
400 - (2P + T) = 200 + 3P
Step 2: Solve for P
5P + T = 200
Step 3: Substitute T = 20 into the equation and solve for P
5P + 20 = 200
5P = 180
P = 36
Step 4: Substitute P = 36 back into the equations to find the new equilibrium quantity.
Q = 200 + 3(36)
Q = 308
Therefore, the new equilibrium price is $36 and the new equilibrium quantity is 308.
The original equilibrium price and quantity are $50 and 350 respectively. After the tax is placed on buyers, the new equilibrium price and quantity become $36 and 308 respectively.
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When results from a scholastic assessment test are sent to test-takers, the percentiles associated with their scores are also given. Suppose a test-taker scored at the 68th percentile for their verbal grade and at the 27th percentile for their quantitative grade. Interpret these results. O A. This student performed better than 32% of the other test-takers in the verbal part and better than 73% in the quantitative part. OB. This student performed better than 32% of the other test-takers in the verbal part and better than 27% in the quantitative part. O C. This student performed better than 68% of the other test-takers in the verbal part and better than 73% in the quantitative part. OD. This student performed better than 68% of the other test-takers in the verbal part and better than 27% in the quantitative part.
This student performed better than 68% of the other test-takers in the verbal part and better than 27% in the quantitative part.
Given,
Test-taker scored at the 68th percentile for their verbal grade and at the 27th percentile for their quantitative grade .
Now,
68% percentile : 68% scores equal or less .
27% percentile : 27^ scored equal or less .
Thus option D
This student performed better than 68% of other test taker in verbal and better than 27% in quantitative part .
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A submarine left Diego Garcia traveling east 5 hours before an aircraft carrier. The aircraft carrier traveled in the opposite direction going 10 km/h faster than the submarine for 2 hours after which time the ships were 110 km apart. Find the submarine's speed
Answer:
40km/hStep-by-step explanation:
Let the submarine's speed be x km/h
the time taken by the submarine is given as 5 hours
the aircraft travels 10km/h faster than the submarine= 15km/h
time taken by the aircraft is 2hours
therefore the distance covered by both vehicles can be described using the expression below
we know that distance=velocity*time, so equating the two vehicles distance to 110km we have
5*x+15*2=110
5x+30=110
solving for x we have
5x=110-30
5x=80
divide both sides by 5 we have
x=80/5
x=40km/h
The submarine's speed is 40km/h