Answers
The plot of the given point must be at.
the third circle and at the 9th ray clockwise from the positive x-axis.
How to plot the point in polar coordinates?Here we want to plot the point (3, -135°).
Remember that a point whose polar coordiantes are (R, θ) must be ploted along the circumference of a circle of radius R, at the angle θ measured counterclockwise from the positive x-axis.
Then here we need to have a circle of radius of 3 units, and plot the point at -135° from the positive x-axis.
Now, each of the rays has 15° on it, then the point should be graphed on the third circle (radius of 3 units) and at the 9th ray clockwise from the positive x-axis (clockwise because the angle is negative, and 9th ray because 9*15 = 135)
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Related Questions
128 3 мы - 5 20 14 ) 448 320 (20X14) 128 80 (5х16) 48 -48 (3 XI) vaku С
Answers
You want to purchase a new car in 4 years and expect the car to cost $76,000. Your bank offers a plan with a guaranteed APR of 4.5 %if you make regular monthly deposits. How much should you deposit each month to end up with $76,000 in 4years?
Answers
Monthly you should deposit approximately $43 to accumulate $76,000 in 4 years.
Given that,
f = $76,000
r = 4% = 0.04/12 = 0.0033
n = 4×12 = 48
We know that, a = (f×r)/((1+r)ⁿ⁻¹)
a is the annuity.
f is the future amount.
r is the interest rate per time period.
n is the number of time periods.
Here,
a = (76,000 ×0.0033)/((1.0033)⁴⁸⁻¹)
a = 76,000 ×0.0033×0.17132
a = 42.96
a ≈ $43
Therefore, monthly you should deposit approximately $43 to accumulate $76,000 in 4 years.
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Solve the following for θ, in radians, where 0≤θ<2π.
4sin2(θ)+7sin(θ)−5=0
Select all that apply:
2.57
1.37
1.05
2.35
0.58
1.88
Answers
Answer:θ ≈ 2.57 radians
θ ≈ 0.58 radians
Step-by-step explanation:We can solve this quadratic equation in sin(θ) by factoring:
4sin^2(θ) + 7sin(θ) - 5 = 0
(4sin(θ) - 1)(sin(θ) + 5) = 0
Therefore, either:
4sin(θ) - 1 = 0
sin(θ) = 1/4
or:
sin(θ) + 5 = 0
sin(θ) = -5 (not possible, since sin(θ) is between -1 and 1)
So, we have sin(θ) = 1/4. Since 0 ≤ θ < 2π, we can find the two solutions in the interval [0, 2π) by using the inverse sine function:
θ = arcsin(1/4)
Using a calculator, we find:
θ ≈ 0.2531 or θ ≈ 2.8887
Therefore, in radians, the solutions for θ are approximately:
0.2531 (which is less than 2π)
2.8887 (which is greater than 2π)
So the only answer that satisfies 0 ≤ θ < 2π is:
These two bottles are similar.
The width of the small size is 5.5 cm and its height is 10 cm.
The width of the large size bottle is 9.9 cm.
10 cm
5.5 cm
hcm
9.9 cm
Calculate the height of the large bottle.
Answers
Answer:
To calculate the height of the large bottle, we can use proportions. We know that the small bottle has a width of 5.5 cm and a height of 10 cm. We also know that the large bottle has a width of 9.9 cm. If we set up a proportion with the widths and heights of the two bottles, we can solve for the height of the large bottle.
5.5 cm / 10 cm = 9.9 cm / h
Multiplying both sides by h, we get:
5.5 cm * h = 10 cm * 9.9 cm
Dividing both sides by 5.5 cm, we get:
h = (10 cm * 9.9 cm) / 5.5 cm
h = 18 cm
Therefore, the height of the large bottle is 18 cm.
Step-by-step explanation:
One of the byproducts of nuclear power generation is Uranium-233. Uranium is decaying at a constant 32% rate per day. If 12,880 pounds are produced from a power plant, what will the amount be in 20 days?
Answers
Answer:
The amount of Uranium-233 produced after 20 days will be approximately 65.1 pounds.
Step-by-step explanation:
Larry Sergio Katrina Jim Ian Tyrone Maria and Sarah are invited to a dinner party.
Answers
The number of ways they can is 40,320.
The number of ways Larry can arrive first and Sarah can arrive last is 720.
The probability that Larry arrives first and Sarah arrives last is 0.01786.
We have,
a)
Since each person can arrive at any time, the number of ways they can arrive is equal to the number of permutations of 8 people, which is:
= 8!
= 40,320
b)
To calculate the number of ways Larry can arrive first and Sarah can arrive last, we can fix their positions and then permute the remaining 6 people in the middle.
= 1 x 6! x 1
= 720
c)
To find the probability that Larry arrives first and Sarah arrives last, we need to divide the number of ways they can arrive in the desired order (720) by the total number of ways they can arrive (40,320):
= P(Larry first and Sarah last)
= 720 / 40,320
= 0.01786
So the probability is approximately 0.01786, or about 1.8%.
Thus,
The number of ways they can is 40,320.
The number of ways Larry can arrive first and Sarah can arrive last is 720.
The probability that Larry arrives first and Sarah arrives last is 0.01786.
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Write a function of the form y= A sin (Bx-C)+D that has period 8, phase shift -2, and the range -12 ≤y≤-4.
y =
Answers
A function of the form y= A sin (Bx-C)+D that has period 8, phase shift -2, and the range -12 ≤y≤-4 is y = 4 sin (π/4 x + π/2) - 8
To write a function of the form y = A sin (Bx - C) + D that has a period of 8 and phase shift of -2, we can use the general formula:
y = A sin [(2π/P)(x - C)] + D
where P is the period, C is the phase shift, and D is the vertical shift. In this case, P = 8 and C = -2, so we have:
y = A sin [(2π/8)(x + 2)] + D
Simplifying the equation, we get:
y = A sin (π/4 x + π/2) + D
To find the amplitude A and vertical shift D that satisfy the range -12 ≤ y ≤ -4, we can use the fact that the sine function oscillates between -1 and 1. If we set A = 4, then the maximum value of y is 4 + D, and the minimum value of y is -4 + D. To ensure that the range is -12 ≤ y ≤ -4, we need to choose D such that:
4 + D ≤ -4 and -4 + D ≥ -12
Solving these inequalities, we get:
-8 ≤ D ≤ 0
Therefore, a function that satisfies the given conditions is:
y = 4 sin (π/4 x + π/2) - 8
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ASAP!!!
Arthur cuts a 24° slice from a pizza 22 inches in diameter. Find the length of AB.
(See attached photo)
Answers
The length of AB is 4.6 inches.
What is the length of an arc?An arc is a part of a circle i.e. an incomplete circle. It can be either a major arc or a minor arc of a given circle.
The length of an arc can be determined by;
length of an arc = (θ/ 360)*2πr
Where r is the radius of the circle, and θ is the measure of its central angle.
In the given diagram, the arc AB is a minor arc. So that;
AB = (θ/ 360)*2πr
r = d/2
= 22/2
r = 11 inches
AB = (24/ 360)*2*3.14*11
= 4.6053
AB = 4.6 inches
The length of arc AB is 4.6 inches.
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Find the value of f (-1).
Answers
The value of f (-1) by virtue of the given absolute value function graph as required is; 8.
What is the value of the function instance f (-1)?It follows from the task content that the value of the function instance; f (-1) is required to be determined.
On this note, the value of the function instance can be determined as the point of intersection of the line; x = -1 with the given graph.
Ultimately, the value of the instance f (-1) is; 8.
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The answer choices are distributive property, associative property, communicative property
Answers
Answer:
Step 1: Distributive Property
Step 2: Distributive Property
Step 3: Commutative Property
Step-by-step explanation:
Step 1: This is distributing the (x + 4y + z) into the (x - 7y), so each term in the prior expression is multiplied by (x - 7y). Hence, Distributive Property.
Step 2: This is doing the same thing but to each individual term. The x in the first term is multiplied by each term in the (x - 7y), the 4y in the second term is multiplied by each term in the (x - 7y), and the same for z. Hence, Distributive Property.
Step 3: This is reordering the variables in the terms. For example, 4yx is changed to 4xy, and that is possible because of the Commutative Property. zx is also reordered into a xz and 7zy into a 7yz.
Feel free to ask any more questions. Hope this helps!!!
1 point
Find the area of the following composite figures, round your answer to the nearest tenth:
Line AD = 6
Line DC = 6
Line AB - 20
Type your answer...
Answers
The area of the following composite figures is 78 square units.
How the area is computed:The area of the square is computed as 36 (length x width) or 2(Length).
The area of the triangle is computed as (base x height) ÷ 2.
The areas of the composite figures are added to determine the total area.
Line AD = 6
Line DC = 6
Line AB = 20
Base of the triangle = 14 (20 - 6)
Area of triangle = (h x b) ÷ 2
= (6 x 14) ÷ 2
= 42
Area of square portion = 36 (6 x 6)
Total area = 78 square units
Thus, we can conclude that the area of the composite figures are 78 square units.
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Solve the following for θ, in radians, where 0≤θ<2π.
−sin2(θ)−2sin(θ)+1=0
Select all that apply:
0.75
2.5
2.71
0.95
0.43
2.04
Answers
Answer:2.71
0.43 are correct
Step-by-step explanation:We can solve this quadratic equation in sin(θ) by using the substitution u = sin(θ):
-u^2 - 2u + 1 = 0
Multiplying both sides by -1, we get:
u^2 + 2u - 1 = 0
We can use the quadratic formula to solve for u:
u = (-b ± sqrt(b^2 - 4ac)) / 2a
where a = 1, b = 2, and c = -1. Substituting these values, we get:
u = (-2 ± sqrt(4 + 4)) / 2
u = (-2 ± 2sqrt(2)) / 2
Therefore, either:
Few families can survive on a single salary.
Please select the best answer from the choices provided
T
F
Answers
Few families can survive on a single salary is true statement
Many families rely on dual incomes to make ends meet, especially in areas with high living costs.
However, there are still many families that rely on a single salary to support themselves.
While it may be challenging to make ends meet on a single salary, it is still possible for families to survive and even thrive in these circumstances.
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NEED HELP WILL GIVE BRAINLIEST AND WILL RATE. Show work and do all 3. :)
Answers
Step-by-step explanation:
5 (4x^8) ^(-1/2) - 2 x^-3
p ^(1/2)
r ^5/3
Verify
8. sin²a + cot²a sin²a = 1
Answers
Answer:
8sin²a + cot²a sin²a = 1 is true.
Step-by-step explanation:
Assignment I 1. Prepare a questionare on Expenditures and Consumptions behaviours and attitudes of polytechnic Students (Case Study of TOPS)
Answers
Some questions that can be asked on the Expenditures and Consumptions behaviours and attitudes of polytechnic Students in a questionnaire are:
What is the average of your total proceeds each month?How much money, on average, do you disburse to purchase perishables and staples each month?Transit consumption - On an ordinary basis, how much are you spending periodically?To participate in reposeful activities or entertainments, monthly expenditure- How much would that amount to?When it comes to periodic expenses, do you have a pre-defined plan in paper?Do you rule over your costings every thirty days with rigorousness?Have any credits or financial obligations been dispensed for the satisfaction of debts?Utilizing a student loan, have you ever funded your current education or living outlays?How to make a questionnaire ?One must carefully consider the purpose of a questionnaire, as well as the information required before starting to design it. Also crucial are factors such as the target audience, number and type of questions (i.e., multiple-choice or open-ended), and its format (e.g., Likert scale).
The way in which questions are organized plays an important role, such that people can easily comprehend them and respond accurately while finishing the survey as fast as needed. Concludingly, logical sequencing of questions should be ensured for the overall design to make sense from beginning to end.
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Math Algebra Help needed
Answers
The composite functions are (f · g) (x) = (x + 2)² and (f / g) (x) = 1, whose domains are all real numbers. The value of each function at x = 2 is listed below:
(f · g) (2) = 16 (f / g) (2) = 1How to find and to analyze composite functions
In this problem we must determine and analyze composite functions. Composite functions can be found by combining two simpler functions thanks to operators. There are four operators to make composite functions:
Addition: (f + g) (x) = f(x) + g(x)Subtraction: (f - g) (x) = f(x) - g(x)Multiplication: (f · g) (x) = f(x) · g(x)Division: (f / g) (x) = f(x) / g(x)The domain of a function is the set of all possible of x-values.
First, we determine the two composite functions: f(x) = g(x) = x + 2.
Case A:
(f · g) (x) = (x + 2)²
Case B:
(f / g) (x) = 1
Second, determine the domain for each case:
Case A:
All real numbers.
Case B:
All real numbers.
Third, evaluate each case at x = 2:
Case A:
(f · g) (2) = (2 + 2)² = 4² = 16
Case B:
(f / g) (2) = 1
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Exponential model. Further research of the new disease has confirmed that its spread is
not linear, but exponential. Experts have estimated it to double every 7 days when it is
first introduced to a population.
Suppose there were 3 cases reported on the morning of day 1 of the outbreak. How many
cases will there be by the end of day 21?
Answers
Answer:
Since the disease doubles every 7 days, the number of cases on day 21 will be 2^3 times the number of cases on day 14, which will be 2^2 times the number of cases on day 7, which will be 2^1 times the number of cases on day 1.
Starting with 3 cases on day 1, we can use the formula:
N = 3 * 2^(t/7)
where N is the number of cases after t days.
Plugging in t = 21, we get:
N = 3 * 2^(21/7) = 3 * 2^3 = 24
Therefore, there will be 24 cases by the end of day 21.
Step-by-step explanation:
Question 7
0 / 2 pts
On March 1, Imhoff Co. began construction of a small building. Payments of $267,596 were made monthly for several months. The payments begin on the first day of April; the last payment was made August 1. The building was completed and ready for occupancy on the first day of September. In determining the amount of interest cost to be capitalized, the weighted-average accumulated expenditures are
Y Correct Answer 334,495 margin of error +/- 5
Answers
The solution is : the weighted-average accumulated expenditures are $101,269.5.
Explanation:
Calculation to determine the weighted-average accumulated expenditures
Weighted-average accumulated expenditures=$202,539* (3/12 + 2/12 + 1/12)
Weighted-average accumulated expenditures=$202,539*0.5
Weighted-average accumulated expenditures=$101,269.5
Therefore In determining the amount of interest cost to be capitalized, the weighted-average accumulated expenditures are $101,269.5.
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Ryan spends 10 hours at work each day.
He has a hour lunch and receives two
hour breaks. How much time does Ryan
spend working?
4
Answers
Answer: 7
Step-by-step explanation: he spends 7 hours a day take 3 away from 10.
Find the area of a triangle with base of
inches and a height of
inches.
A
100100100 square inches
B
505050 square inches
C
252525 square inches
D
12.512.512.5 square inches
Answers
The area of the triangle with base of 5 inches and a height of 10 inches is 25 square inches. The correct answer is C.
The formula for the area of a triangle is A = 1/2 * b * h, where A is the area, b is the base, and h is the height. Using this formula, we can calculate the area of the triangle in question.
Given that the base of the triangle is 5 inches and the height is 10 inches, we can plug these values into the formula and solve for A:
A = 1/2 * b * h
A = 1/2 * 5 * 10
A = 25
Therefore, correct answer is C.
The height of a triangle is the perpendicular distance between the base and the opposite vertex. The base is the side of the triangle on which the height is measured.
By multiplying the base and the height and dividing the result by 2, we can find the area of a triangle. This formula works for all types of triangles, regardless of their size or shape.
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Complete question is:
Find the area of a triangle with base of 5 inches and a height of 10 inches.
A 100 square inches
B 50 square inches
C 25 square inches
D 12.5 square inches
Find the area of triangle ABC with the given parts. Round to the nearest tenth as necessary
Answers
The area of the given triangle is expressed as: 25.6 in²
What is the area of the triangle?We are only given two sides of the triangle and an angle and so we must find the length of the third side to be able to find the area. The length of the third side is gotten from cosine rule to get:
a = √(14.1² + 7.2² - 2(14.1 * 7.2)*cos 30.3)
a = 8.68 in
In order for us to calculate the area of triangle which has 3 sides, we will have to utilize the Heron's Formula.
From the formula, the area of a triangle (A) that has 3 sides a, b, and c is calculated via the formula:
A = √[s(s - a)(s - b)(s - c)]
where:
s denotes the semi-perimeter of the specific triangle given by the formula: s = (a + b + c)/2.
s = (8.68 + 14.1 + 7.2)/2
s = 14.99 in
Thus:
Area = √[14.99(14.99 - 8.68)(14.99 - 14.1)(14.99 - 7.2)]
Area = 25.6 in²
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I need help with math!!!
Please answer this question (picture is provided with question) I just need to find the area.
Answers
The value of area of the figure is,
⇒ 10√10 units²
We have to given that;
To find the area of figure.
Here, We have to find length of AD and AB for area of figure.
Coordinate of A = (- 2, 2)
Coordinate of B = (- 4, -4)
Coordinate of D = (3, 2)
Since, The distance between two points (x₁ , y₁) and (x₂, y₂) is,
⇒ d = √ (x₂ - x₁)² + (y₂ - y₁)²
Hence, Length of AD;
AD = √ (-2 - 3)² + (2 - 2)²
AD = √25
AD = 5
Length of AB;
AB = √ (- 2 + 4)² + (2 + 4)²
AB = √4 + 36
AB = √40
AB = 2√10
Thus, The value of area of the figure is,
⇒ AD x AB
⇒ 5 × 2√10
⇒ 10√10
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2y+3y-18=-83?????????????
Answers
First you start by adding the numbers with variables.
2y+3y=5y
Then you add 18 on both sides
5y-18=-83
+18 +18
5y=-65
Then you divide 5 on both sides
5y=-65
5. 5
Then the equation ends up as
Y=-13
I need explanation for example 8.
Thankyou
Answers
There is a probability of 94/315 that the problem will be solved.
We are given that P has a chance of solving the problem of 2/7, Q has a chance of solving the problem of 4/7, and R has a chance of solving the problem of 4/9. To find the probability that the problem is solved, we need to consider all possible scenarios in which the problem can be solved.
The probability of this scenario is 2/7. If P solves the problem, then it does not matter whether Q or R solve it, the problem is already solved. Therefore, the probability of the problem being solved in this scenario is 2/7.
The probability of this scenario is 4/7. If Q solves the problem, then it does not matter whether P or R solve it, the problem is already solved. Therefore, the probability of the problem being solved in this scenario is 4/7.
The probability of this scenario is 4/9. If R solves the problem, then it does not matter whether P or Q solve it, the problem is already solved. Therefore, the probability of the problem being solved in this scenario is 4/9.
The probability of this scenario is (1-2/7) * (1-4/7) * (1-4/9) = 3/35. This is because the probability of P not solving the problem is 1-2/7, the probability of Q not solving the problem is 1-4/7, and the probability of R not solving the problem is 1-4/9. To find the probability of none of them solving the problem, we multiply these probabilities together.
To find the probability of the problem being solved, we need to add the probabilities of all the scenarios in which the problem is solved. Therefore, the probability of the problem being solved is:
2/7 + 4/7 + 4/9 = 94/315
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In a choir, the number of girls is twice the number of bovs. The avera height of the boys is 150 cm and the average height of the girls is 159 cm
What is the average height of all the choir members?
Answers
Answer:
Step-by-step explanation: mark me brainliest
Which of the following functions has the largest value when x = 3 (1 point)?
c(x) = 3x2 + 5x + 22
j(x) = 12x
a(x) = 9x
Group of answer choices
All the functions are equal at x = 3.
c(x)
j(x)
a(x)
Answers
Answer:
x = 3
c(x) = 3x² + 5x + 22
⇒ c(3) = 3(3²) + 5(3) + 22
⇒ c(3) = 3(9) + 15 + 22
⇒ c(3) = 27 + 15 + 22
⇒ c(3) = 64
j(x) = 12x
⇒ j(3) = 12(3)
⇒ j(3) = 36
a(x) = 9x
⇒ a(3) = 9(3)
⇒ a(3) = 27
c(x) = 3x² + 5x + 22 is the function that has the largest value when x = 3.
False. Not all functions are equal at x = 3.
Nour wants to go on a popular talent TV show. In order to be accepted, her audition must get at least
60
%
60%60, percent positive votes from the people in the crowd.
To make sure she’s not going to embarrass herself, she performed her act in front of
100
100100 random people from her school. About
90
%
90%90, percent of the people said they would give her a positive vote. She calculated the margin of error and found it’s well within the range above
60
%
60%60, percent, so she decided to go and audition
Answers
1. The objective of Nour's study is to sample the population to see if there is a correlation between her performance and the audience response.
2. No, because the population she sampled isn't necessarily representative
What is population sample?A population sample is a subgroup of people drawn from a broader population for the purpose of a study.
A population sample is often chosen such that it is a representative of the greater population. Populaton sample should consider factors such as age, gender, income, or level of education.
The answer provided is based on the full question below;
Nour wants to go on a popular TV talent show. In order to be accepted, her audition must get at least 60% positive votes from people in the crowd.
To make sure she's not going to embarrass herself, she performed her act in front of 100 random people from her school. About 90% of the people said they would give her a positive vote. She calculated the margin of error and found it's well within the range above 60%, so she decided to go to the audition.
What is the objective of Nour's study?
Is the study appropriate for the statistical questions it's supposed to answer?
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A small box in the shape of a cube for packaging has a volume of 216 cubic inches.
(a) For a medium box, the length, width, and height are all tripled. What is the ratio of the sides, area of
the bases, and volumes of the boxes? Show your work.
(b) What is the volume of a medium box? Show your work.
Answers
The ratio of the sides of the medium box to the small box is 3:1, the ratio of the area of the bases is 9:1, and the ratio of the volumes is 27:1 and the volume of the medium box is 5832 cubic inches.
Let's denote the side length of the small cube as "s". Since it is a cube, all sides are equal.
Given that the volume of the small box is 216 cubic inches, we can set up the equation;
Volume of small box = s³ = 216
Taking the cube root of both sides, we get;
s = ∛216 = 6 inches
So, the side length of the small cube is 6 inches.
For the medium box, the length, width, and height are all tripled, so the new side length of the medium cube is 3 times the side length of the small cube:
Side length of medium cube = 3s = 3 × 6 = 18 inches
Now, let's calculate the ratio of the sides, area of the bases, and volumes of the small and medium boxes;
Ratio of sides: Side length of medium cube / Side length of small cube = 18 / 6 = 3
Ratio of area of bases: (Side length of medium cube)² / (Side length of small cube)² = (18)² / (6)² = 9
Ratio of volumes: (Volume of medium box) / (Volume of small box) = (Side length of medium cube)³ / (Side length of small cube)³ = (18)³ / (6)³ = 27
So, the ratio of the sides of the medium box to the small box is 3:1, the ratio of the area of the bases is 9:1, and the ratio of the volumes is 27:1.
The volume of the medium box is given by;
Volume of medium box = (Side length of medium cube)³ = 18³
= 5832 cubic inches
Therefore, the volume of the medium box is 5832 cubic inches.
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2. Given: y varies inversely with x.
If y=-24 when x =36, what is the value of x
when y = 45?
Answers
Using inverse variation, the value of x = -19.2
What is inverse variation?Inverse variation is when a quantity varies inversely as the other.
Given: y varies inversely with x.
If y=-24 when x =36, what is the value of x when y = 45.
To splve this, we proceed as follows
Since y varies inversely with x, we have that
y ∝ 1/x
y = k/x where k = constant of proportionality
So, making k subject of the formula, we have that
k = yx
Now, If y=-24 when x =36, we have that
k = - 24 × 36
= -864
So, substituting k into y, we have that
y = k/x
= -864/x
So, to find the value of x when y = 45, making x subject of the formula, we have that
x = -864/y
So, substituting y into the equation, we have that
x = -864/y
= -864/45
= -19.2
So, the value of x = -19.2
Learn more about inverse variation here:
https://brainly.com/question/29390335
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