Answer: ok
Step-by-step explanation:
Given the linear relationship between the number of bean stalks, n, and the yield, Y, we can represent this relationship using a linear equation in the form of Y = mx + b, where m is the slope and b is the y-intercept.
To find the slope, we can use the two given points (3, 130) and (6, 190) and apply the slope formula:
m = (y2 - y1) / (x2 - x1)
m = (190 - 130) / (6 - 3)
m = 60/3
m = 20
So the slope is 20.
To find the y-intercept, we can use the point-slope form of the linear equation and substitute one of the given points and the slope:
Y - 130 = 20(n - 3)
Simplifying this equation, we get:
Y = 20n + 70
So the linear equation that represents the relationship between the number of bean stalks and the yield is:
Y = 20n + 70
This equation can be used to predict the yield for any number of bean stalks that the farmer may plant.
Type the correct answer in each box.
Day Amount
1
$26
2
$23
3
$31
4
$26
5
534
The table shows the amount Bill spent on 5 days last week.
The mean of the amount he spent is $
The mean absolute deviation is $
Reset
Next
The mean absolute deviation is $106.6.
Given the table shows the amount Bill spent on 5 days last week.
DayAmount12622313126534To find the mean of the amount he spent: The formula for calculating the mean of a given set of values is mean=∑x/n where x represents the values, n represents the number of values, and ∑x represents the sum of the values.
Mean=total sum of values/total number of values Mean=(26+23+31+26+534)/5Mean=640/5Mean=128So,
the mean of the amount he spent is $128.To find the mean absolute deviation: The mean absolute deviation (MAD) is the average distance between each data value and the mean. MAD shows how much the data set deviates from the mean. The formula for calculating the MAD is MAD=∑|xi−m|/n where xi represents the values, m represents the mean, and n represents the number of values. So, the calculation for each day is:
Day Amount Absolute deviation from mean1 26 |128-26|=102 23 |128-23|=105 31 |128-31|=974 26 |128-26|=102 534 |128-534|=406
The sum of all absolute deviations is:
10+10+97+10+406=533The mean absolute deviation (MAD) is: MAD=533/5=106.6So.
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. Sinaia is having a birthday party with snacks and activities for her guests. At one table, five
people are sharing three-quarters of a pizza. What equal-sized portion of the whole pizza will
each of the five people receive?
Answer:
1/5 or 0.2 of the whole pizza
but it says that theres only 3/4 of the pizza there. so 3/4 of a pizza eaten by 5 people each person would get 0.15 of the pizza
Step-by-step explanation:
can you help me plz
Answer:
A
Step-by-step explanation:
10/5=2
Which equation has a constant of proportionality equal to 2 ?
( A ) y = 10/5x
What is 4 divided by 1,483 in long division pls pls pls plsssssss help me!!!:(☹️
Answer:
370.75 by just dividing it
Brainliest please?
On a piece of paper graph y=(s+2)(s-3) then determine which answer choice matches the graph
The graph of the equation y = (s + 2)(s - 3) is plotted and it cuts the x - axis at the points -2 and 3.
What is Parabola?
Parabola is a plane curve generated by a point moving so that its distance from a fixed point is equal to its distance from a fixed line.
Given is a function as -
y = (s + 2)(s - 3)
We have -
(s + 2)(s - 3)
s(s - 3) + 2(s - 3)
s² - 3s + 2s - 6
s² - s - 6
Replace 's' with 'x'. Now, you will get a quadratic equation as follows -
x² - x - 6
The graph of a quadratic equation represents a parabola. The parabola will cut the x - axis at the points -
(x - 2)(x - 3) = 0
x = -2 and x = 3
Therefore, the graph of the equation y = (s + 2)(s - 3) is plotted and it cuts the x - axis at the points -2 and 3.
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What is X?
I’m at a loss
Answer:
9
Step-by-step explanation:
5x-3= 2x+24
5x=2x+27
3x=27
X=9
Answer: A. 9
Step-by-step explanation:
The diagonal is bisected by the other diagonal. So the 2 parts of the diagonal are equal
5x - 3 = 2x + 24 >Bring like terms to 1 side
3x = 27 >Divide both sides by 3
x = 9
19. Which angle is a vertical angle to ∠UST ? A ∠VSW B ∠USV C ∠TSR D ∠WSR
Answer:
D. WSR
Explanation:
A vertical angle is also known as a vertically opposite angle refers to the pair of angles formed when two lines intersect one another. These pair of angles are congruent and are opposite one another
From the diagram and in the light of the explanation above, the vertical angle to UST is WSR
Therefore, option D is the answer
16 families went on a trip which cost them Rs 2,16,352. How much did each
family pay?
Given that 16 families went on a trip and the cost of the trip was Rs. 2,16,352.The amount paid by each family is to be determined by unitary method Hence each family paid Rs.13522
Now, let's solve this by using the method of unitary method. To find the cost of 1 family trip, we will divide the total cost of the trip by the number of families.2,16,352 / 16 = 13,522 So, the cost of the trip per family is Rs. 13,522.Hence, each family paid Rs. 13,522 for the trip.
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Answer:
Step-by-step explanation
1. The total cost of the trip for all 16 families is Rs 2,16,352.
2. To find out how much each family paid, we need to divide the total cost by the number of families: Rs 2,16,352 ÷ 16.
3. When we do the division, we get the result: Rs 13,522.
Now let's check if this result is correct:
1. If each family paid Rs 13,522 for the trip, then the total cost for all 16 families would be: 16 × Rs 13,522 = Rs 2,16,352.
2. This is exactly the same as the total cost given in the problem statement.
So we have shown that each family paid **Rs 13,522** for the trip
n/2 = -7 help please
n= -14
If N/2 = -7 then you can find out what x is like this:
Take the denominator (2) and multiply it by -7 which gives you -14. You know that N= -14 because -14 divided by 2 is -7.
Hope this helps and have a nice day.
-R3TR0 Z3R0
Build a function whose domain is all real numbers other than -4, and whose range is all real numbers other than 5.
Answer:
An example is the rational function \(y=\frac{5x}{x+4}\).
Step-by-step explanation:
The graph of the rational function \(y=\frac{5x}{x+4}\) has a vertical asymptote at x = -4 where the denominator is equal to zero. The function is undefined there, so the domain is all real numbers except -4.
The graph has a horizontal asymptote y = 5 so the domain is all real numbers except 5.
See the attached image for the graph of the function (purple) and it's vertical asymptote (black).
Zen spent $255 on a bag and a belt. She wanted to buy another
similar bag with the remaining money but was short of $30. In the
end, she bought another similar belt and had $15 left in the end.
(a) How much more did the bag cost than the belt?
(b) How much did the belt cost?
Answer:
A)$ 45
B) $105
Step-by-step explanation:
Bag and a belt cost $255
Let bag = x
Let belt = y
X+y= 255 equation 1
Let total money be z first
Remaining money= z-255
X-30 = z-255
Y +15 = z-255
Equating the left side of the equation
X+30 = y+15
X-y= 45 equation 2
Solving simultaneously
X+y= 255
X-y= 45
2x = 300
X= 150
If x= 150
150-y= 45
150-45= y
105=y
Bag = $150
Belt = $105
Bag Is 150-105 more than the belt
150-105= $45
The Jayden family eats at a restaurant that is having a 15% discount promotion. Their meal costs $78.07 before the discount, and they leave a 20% tip. If the tip applies to the cost of the meal before the discount, what is the total cost of the meal? Round your intermediate calculations and answer to the nearest cent.
Answer:
93.684
Step-by-step explanation:
They just give a 5% bonus to the price of the lunch
SOMEONE PLEASE HELP ME PLEASE SOMEONE PLEASE HELP ME WITH MY HOMEWORK ILL DO ANYTHING FOR HELP
Answer:
The answer is 8
Step-by-step explanation:
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the number 450k is a perfect square find the smallest positive integer value of K
The smallest positive integer of k is 2, and the number is (450)(2) = 900.
What are integers?An integer, pronounced "IN-tuh-jer," is a whole number that can be positive, negative, or zero and is not a fraction.
Unknown or unidentified integers are denoted in mathematical equations by lowercase, italicised letters as from "late middle" of the letters. P, q, r, and s are the most prevalent.
Denumerable sets include the set Z. Denumerability is the property that even if a set may include an endless number of members, any element in the set may be represented by a list that entails its identity.
The prime factor of 450 are:
450 = 2 × (3)² × (5)²
For the number 450k to be a perfect square the value of k must me such that all the prime factors of the number are square.
From the prime factors we observe that 2 needs to be multiplied in order to make the number a perfect square.
Hence, the smallest positive integer of k is 2, and the number is (450)(2) = 900.
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The function
f(x) = 5sqrt(x + 13) + 5 has an inverse f ^ - 1 * (x) defined on the domain x < 5 Find the inverse. x >= - 13
The inverse function: \(f^{-1} (x) =\) \((\frac{x -5}{5} )^{2} -13\)
The inverse is defined on the domain x < 5 and x ≥ -13 for the original function, which means that the range of the original function is y ≥ 5.
What is a function?A function is a relationship that exists between two sets of numbers, with each input from the first set, known as the domain, corresponding to only one output from the second set, known as the range.
Given function is; \(f(x) = 5\sqrt{(x + 13)} + 5\)
To find the inverse of the given function, we first replace f(x) with y:
⇒ \(y = 5\sqrt{(x + 13)} + 5\)
Subtract 5 from both sides:
⇒ \(y -5 = 5\sqrt{(x + 13)}\)
⇒ \(\frac{(y -5)}{5} = \sqrt{(x + 13)}\)
⇒ \((\frac{y -5}{5} )^{2} = x + 13\)
⇒ \((\frac{y -5}{5} )^{2} -13 = x\)
Now we have x in terms of y, so we can replace x with f⁻¹(x) and y with x to get the inverse function:
f⁻¹(x) = \((\frac{x -5}{5} )^{2} -13\)
The domain of the inverse function is x ≥ 5, because this is the range of the original function, and we were given that the inverse is defined on the domain x < 5. However, we must also exclude the value x = 5, because the denominator of the fraction \((\frac{x -5}{5} )^{2}\) becomes zero at this value. Therefore, the domain of f⁻¹(x) is x > 5.
We were given that x ≥ -13 for the original function, which means that the range of the original function is y ≥ 5. Therefore, the domain of the inverse function becomes the range of the original function, and the range of the inverse function becomes the domain of the original function.
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Need help with other math who’s gonna help me brainlest and points
what is 2 +2
4+5
0+9
Answer:
Step-by-step explanation:
2+2=4
4+5=9
0+9=9
Answer:
4, 9 , 9 OR 4 + 9 + 9 = 22
Step-by-step explanation:
Bill keeps a colony of honeybees on his property. He has created an expression to represent the number of honeybees that are in the colony t years after he decided to create the colony. The expression Bill created is -16t4 + 160t2 – 144.
After deciding to create the colony, it took a fair amount of time to prepare before actually getting bees in his colony. After some time, the population in the colony started to decrease; eventually Bill lost his colony.
Set the term being squared from part b equal to x and rewrite the expression in terms of x.
Answer:
x is 12
Step-by-step explanation:
For the three-part question that follows, provide your answer to each question in the given workspace. Identify each part with a coordinating response. Be sure to clearly label each part of
your response as Part A, Part B, and Part C.
Part A: Suppose event A and event B are mutually exclusive. Is the statement P(A and B)-0 true?
Part 9: Explain why or why not to support your answer to Part A.
Part C: Provide an example to support your explanation.
Part A :
Yes, the statement is true that P( A and B ) = 0 .
Given,
Event A and Event B are mutually exclusive.
Thus P ( A and B ) = 0
Part B:
A and B are mutually exclusive events if they do not occur at the same time.
This means that A and B do not share any common outcomes and
P(A and B) = 0.
Part C:
Let,
The sample space W = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}.
Let A = {1, 2, 3, 4, 5}, Y = {4, 5, 6, 7, 8}, and B = {7, 9}.
A and B do not have any numbers in common so P(A and B) = 0.
Hence, A and B are mutually exclusive.
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A ball is thrown vertically upward with an initial velocity of 19 m/s. Its height, h(t)metres after t seconds, is given by the equation h(t) = -3t2 + 20t + 2.0.
The time taken by the ball to reach the maximum height is ________ seconds. Round your answer to the nearest tenth.
Answer:
Step-by-step explanation:
There are 2 different ways to do this: calculus and by completing the square. In this particular instance, calculus is WAY easier, and since I don't know for what class you are doing this, I'll do both ways. First the calculus way. We know the position equation, and the first derivative of the position is velocity. We also know that when the velocity is equal to 0 is when the object is at its max height. So we'll find the derivative first, then solve it for t:
If \(s(t)=-3t^2+20t+2\) then the first derivative is
v(t) = -6t + 20 Solving for t requires that we set the velocity equal to 0 (again, this is where the object is at its max height), so
0 = -6t + 20 and
-20 = -6t so
t = 3.3 seconds. Now that we know that at 3.3 seconds the object is at its highest point, we sub that time into the position function to see where it is at that time:
s(3.3) = \(-3(3.3)^2+20(3.3)+2\) and
s(3.3) = 35.3 meters.
Now onto the more difficult way...completing the square. Begin by setting the position function equal to 0 and then move over the constant to get:
\(-3t^2+20t=-2\) Since the leading coefficient is not a 1 (it's a 3), we have to factor out the 3, leaving us with:
\(-3(t^2-\frac{20}{3}t)=-2\) Now the rule is to take half the linear term, square it, and add it to both sides. Our linear term is \(\frac{20}{3}\) and half of that is \(\frac{20}{6}\). Squaring that:
\((\frac{20}{6})^2=\frac{400}{36}=\frac{100}{9}\). We will add that in to both sides. On the left it's easy, but on the right we have to take into account that we still have that -3 sitting out front, refusing to be ignored. So we have to multiply it in when we add it to the right. Doing that gives us:
\(-3(t^2-\frac{20}{3}t+\frac{100}{9})=-2-\frac{100}{3}\) We will clean this up a bit now. The reason we do this is because on the left we have created a perfect square binomial which will give us the time we are looking for to answer this question. Simplifying the right and at the same time writing the perfect square binomial gives us:
\(-3(t-\frac{20}{6})^2=-\frac{106}{3}\) Now the last step is to move the constant back over and set the quadratic back equal to y:
\(y=-3(t-\frac{20}{6})^2+\frac{106}{3}\). The vertex of this quadratic is
\((\frac{20}{6},\frac{106}{3})\) where
\(\frac{20}{6}=3.3\) as the time it takes for the ball to reach its max height of
\(\frac{106}{3}=35.3\) meters.
I'd say if you plan on taking calculus cuz you're not there yet, you'll see that many of these types of problems become much simpler when you know it!
f(x) = √3x
g(x) = 3x + 2
Find (4) (2). Include any restrictions on the domain.
Option A is correct. The value of function (f/g)(x) is found to be \(\sqrt[3]{3x}\)/(3x+2) where the condition is that x ≠ -2/3.
What exactly is a function composition?In mathematics, function composition is an operation in which two functions, f and g, form a new function, h, in such a way that h(x) = g(f(x)). This signifies that function g is being applied to the function x. So, in essence, a function is applied to the output of another function.
What is the sum of two functions?The new function obtained by performing f first and then g is the combination of two functions g and f.
Given:
f(x) = \(\sqrt[3]{3x}\)
g(x) = 3x + 2
(f/g)(x) = \(\sqrt[3]{3x}\)/(3x+2)
Also, the denominator should not be equal to 0.
So, 3x + 2 ≠ 0
x ≠ -2/3
Therefore, the value of function is found to be \(\sqrt[3]{3x}\)/(3x+2) where the condition is that x ≠ -2/3. So, Option A is correct
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Which point corresponds to the real zero of the graph of y = log2 (x + 2) - 1?
Answer:
(0, 0)
Step-by-step explanation:
Ok so you have the equation: \(y = log_2{(x+2)}-1\). To find the zero you simply set the y equal to zero and then solve for x
\(0 = log_2{(x+2)}-1\)
Add 1 to both sides
\(1 = log_2{x+2}\)
Rewrite the equation in exponential form:
\(2^1=x+2\)
Subtract 2 from both sides
\(0 = x\)
So the zero of the function is at the origin (0, 0)
*
True or False? Natural Numbers are closed under division.
Answer: False
Natural numbers are not closed under division
Some natural numbers divide to get another natural number. For example, divide 10 over 2 to get 10/2 = 5.
However, there are infinitely many natural numbers that divide to get something that isn't a natural number. Example: 10/7 = 1.43 approximately. All we need is one counterexample to contradict the original statement.
A set is considered closed under division if dividing any two values in that set leads to another value in the set. More formally, if a & b are in some set then a/b must also be in the same set for that set to be closed under division.
If we changed "natural numbers" to "rational numbers", then that set is closed under division. If p, q are rational numbers then p/q is also rational. Basically, dividing any two fraction leads to some other fraction. The value of q cannot be zero.
Question 10 of 25 What is the recursive formula for this geometric sequence? -2,-16, -128, -1024,... A. ○ B. C. (a, D. 3₁ = :-2 an = 2n-1 = = -2 an = an-1.8 • a₁ = 8 an = an-1• (-2) (a₁ = -8 30 = 20-1.2 SUBMIT
Answer:
\(a_{n}\) = 8\(a_{n-1}\) ; a₁ = - 2
Step-by-step explanation:
a recursive formula in a geometric sequence allows a term to be found by multiplying the preceding term by the common ratio r
here r = \(\frac{a_{2} }{a_{1} }\) = \(\frac{-16}{-2}\) = 8 , then
\(a_{n}\) = 8\(a_{n-1}\) ; a₁ = - 2
8. A music store sells used CDs for $9. They buy used CDs for $4. You have $50 to
spend and many old CDs. Write an equation in standard form that models how
many CDs you can buy in this situation.
1 Add file
Answer: 9x+4=50
Step-by-step explanation:
In this case, we're looking at how many you can buy, not how many CD's you own.
T=PV/k, determined P when T=80, V=20 and K= 0.5
We have the following equation:
\(T=\frac{PV}{k}\)since we need P, we must move k and V to the left hand side as
\(P=\frac{k\cdot T}{V}\)By substituting the given values, we get
\(\begin{gathered} P=\frac{(0.5)(80)}{20} \\ P=\frac{40}{20} \\ P=2 \end{gathered}\)that is, P is equal to 2.
URGENT, PLEASE HELP! (1/5) -50 POINTS- !please no wrong answers for the points.! A) \(y = 6x - \frac{11}{8}\) B) \(y = -6x - 2\) C) \(y = \frac{3}{2} x - \frac{1}{8}\) D) \(y = -3x + 9\)
Answer:
C y = 3/2x - 1/8
Step-by-step explanation:
We know that the line has a positive slope, because it goes up from the lower left to upper right
We can eliminate B and D
For y = 6x - 11/8
A slope of 6 is very steep
Putting in 6
y = 6*6 -approximately 1 = 35 so the value at 3 would be 35
This is too big
Checking C
y = 3/2(6) - 0 = 9 or 9 This would be about right
100 POINTS PLEASE HELP FAST
Select the correct answer.
The weight of a radioactive isotope was 96 grams at the start of an experiment. After one hour, the weight of the isotope was half of its initial weight. After two hours, the weight of the isotope was half of its weight the previous hour. If this pattern continues, which of the following graphs represents the weight of the radioactive isotope over time?
The top left graph represents the weight of the radioactive isotope over time.
How to define an exponential function?An exponential function has the definition presented according to the equation as follows:
\(y = ab^x\)
In which the parameters are given as follows:
a is the value of y when x = 0.b is the rate of change.The parameter values for the function in this problem are given as follows:
a = 96, b = 0.5.
Hence the function is given as follows:
\(y = 96(0.5)^x\)
Two points on the graph of the function are given as follows:
(1,48) and (2, 24).
Hence the top left graph represents the weight of the radioactive isotope over time.
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Answer:
Graph W
Step-by-step explanation:
The given information describes a radioactive decay process, where the weight of the isotope decreases by half at regular intervals. This type of decay is characteristic of exponential decay.
Based on the description, the graph that represents the weight of the radioactive isotope over time would be a decreasing exponential curve, where the y-axis represents the weight of the isotope (in grams), and the x-axis represents time (in hours).
The initial weight of the isotope is 96 grams, and after each subsequent hour, the weight becomes half of what it was in the previous hour. Therefore, the correct graph would start at 96 grams (the initial weight when x = 0) and then decrease by half every hour. It would be a curve that gets closer and closer to zero but never quite reaches it.
Initial weight: 96 grams
After 1 hour: 96 / 2 = 48 grams
After 2 hours: 48 / 2 = 24 grams
After 3 hours: 24 / 2 = 12 grams
After 4 hours: 12 / 2 = 6 grams
After 5 hours: 6 / 2 = 3 grams
So, the points on the graph would be:
(0, 96), (1, 48), (2, 24), (3, 12), (4, 6), (5, 3)Therefore, the graph that represents the weight of the radioactive isotope over time is Graph W.
In the quadrilateral below, angles DAB and BCD are the same size. What is the size of angle DAB? A D 226° 38° B
The size of angle DAB in the quadrilateral is 48°.
How to find the size of angle DAB?The sum of the interior angles of a quadrilateral is 360°. We can say:
\(\angle \text{A} +\angle\text{B} + \angle\text{C} + \angle\text{D} = 360^\circ\)
\(\angle \text{A} +38^\circ + \angle\text{C} + 226^\circ = 360^\circ\)
\(\angle \text{A} + \angle\text{C} + 264^\circ = 360^\circ\)
\(\angle \text{A} + \angle\text{C} = 360^\circ- 264^\circ\)
\(\angle \text{A} + \angle\text{C} = 96\)
Since angles DAB and BCD are the same size. This implies ∠A = ∠C. Thus:
\(\angle\text{A} + \angle\text{A} = 96\)
\(2\angle\text{A} = 96\)
\(\angle\text{A} = \dfrac{96}{2}\)
\(\angle\text{A} = 48^\circ\)
Therefore, the size of angle DAB is 48°.
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If x=8 then the length of ab is
Step-by-step explanation:
all we need to do is to put the specific value of x (8) into the place of the space holder variable x and calculate.
AB = 3x - 2 = 3×8 - 2 = 24 - 2 = 22