The polar coordinates of (-6, 8) are (10, 5.32) in radians or (10, 305.58) in degrees, obtained by using the Pythagorean theorem to find the distance r and arctan to find the angle θ and adding π to θ for the second quadrant.
To convert the point (-6, 8) from rectangular coordinates to polar coordinates, we need to first find the distance r from the origin to the point, and then find the angle θ that the line connecting the point to the origin makes with the positive x-axis.
Using the Pythagorean theorem, we can find the distance r as:
r = sqrt((-6)^2 + 8^2) = 10
Next, we need to find the angle θ. We can use the inverse tangent function, or arctan, to find the angle. Since the point (-6, 8) is in the second quadrant, we need to add π (or 180 degrees) to the angle we get from arctan in order to get the correct angle in polar coordinates.
θ = arctan(8/-6) + π = 2.18 + 3.14 = 5.32 radians (or 305.58 degrees)
Therefore, the point (-6, 8) in rectangular coordinates is equivalent to the point (10, 5.32) in polar coordinates.
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Find each missing measure
What is the value of each function x = 1 can someone explain it
Answer: for x=1, it would be y=50
Step-by-step explanation:
Answer: Function 1 is 45 and Function 2 is 50 I think
Step-by-step explanation:
Please show your work! *grade 9 work*
Answer:
c = 6√2 cm
Step-by-step explanation:
a² + b² = c²
6² + 6² = c²
36 + 36 = c²
108 = c²
c = ± √108 = ± 6√2
Since the side length of a triangle can't be negative, c = -6√2 is an extraneous solution; therefore the answer is c = 6√2.
Answer:
72 cm or 6 square root of 2
Step-by-step explanation:
a^2+b^2=c^2
6^2+6^2=c^2
36+36=72
c= 72 cm. or 6 square root of 2
hope this helps.
There are 45 cards in a card game deck. How many cards in 4 decks?
Answer:
180 cards
Step-by-step explanation:
45x 4= 180
i need to ask again please help
Answer:
d
Step-by-step explanation:
construct and interpret a 95 percent confidence interval for the difference between the proportion of the population who would survive at least 15 years
The 95% confidence interval for the difference between the proportion of the population who would survive at least 15 years can be used to estimate the range within which the true difference lies.
It provides a measure of uncertainty around the point estimate. The confidence interval can be interpreted as follows: we are 95% confident that the true difference in proportions of the population who would survive at least 15 years falls within the calculated interval. To construct the confidence interval, we first need to obtain sample data from the population. Let's assume we have collected data from two independent samples. From Sample 1, we find that out of n1 individuals, x1 survive at least 15 years. Similarly, from Sample 2, we have n2 individuals, with x2 surviving at least 15 years. To calculate the confidence interval, we use the formula: CI = (p1 - p2) ± Z * sqrt((p1 * (1 - p1) / n1) + (p2 * (1 - p2) / n2)) Where p1 = x1 / n1 and p2 = x2 / n2 are the sample proportions, and Z is the critical value corresponding to the desired confidence level (in this case, 95%). The critical value is determined based on the standard normal distribution. Once we have the confidence interval, let's say [lower limit, upper limit], we can interpret it as follows: We are 95% confident that the true difference in proportions between the two populations who would survive at least 15 years lies between the lower limit and the upper limit. In other words, there is a high likelihood that the actual difference falls within this range. The confidence interval allows us to make inferences about the population based on our sample data. It provides a range of plausible values for the difference in proportions, taking into account the variability of the sample. The wider the confidence interval, the greater the uncertainty in our estimate. Conversely, a narrower interval indicates a more precise estimation.
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A trapezoid has verities A(-5, 4), B(-3, 2) C(-7, -2) and D(-7, 2). It is transformed according to the rule
I will give you branilest!
Answer:
ran throught a cal is
Step-by-step explanation:
Slope (m) =
ΔY /ΔX =1/3 =0.33333333333333
The ticket sales for a concert started at 4:00 P.M. The table shows the linear relationship
between the number of tickets remaining and the number of hours since 4:00 P.M.
Ticket Sales
Answer: I just took the test so the answer would be y=3,000x+12,000
Step-by-step explanation: hope this help thx for the points :D
If a=-x and b=-1-5, then find the value of the a^{2}b in fully simplified form.
Simplification form of the expression is -1.5x² after plugging the values of a and b in the expression a²b
What is an expression?It is defined as the combination of constants and variables with mathematical operators.
It is given that:
If a=-x and b=-1-5, then find the value of the a²b
Plug the values of a and b in the expression a²b
= (-x)²(-1.5)
= -1.5x²
Thus, simplification form of the expression is -1.5x² after plugging the values of a and b in the expression a²b
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The island has a population of 12175 people. Find the population density in people per square kilometer
Answer: the population density is approximately 121.75 people/km^2.
Step-by-step explanation: Assuming a scenario whereby the island in question is entirely populated and encompasses a total expanse of 100 square kilometers, it follows that the resulting population density would be as follows:
The formula for population density can be expressed as the ratio of total population to a given geographic area. Mathematically, it is written as Population density = Population / Area.
The metric for measuring population density yields a value of 121.75 individuals per hectare.
The metric expressing the number of individuals residing in a given geographic area is referred to as population density. In this specific instance, the population density is calculated to be 121.75 persons per square kilometer.
Assuming a complete occupancy of the island and a cumulative surface area of 100 square kilometers, it can be posited that...
Sneha’s mother is 12 years more than twice Sneha’s age. After 8 years, she will be 20 years
less than three times Sneha’s age. Find Sneha’s age and Sneha’s mother’s age.
Sneha's current age is 16 years old. Sneha's mother is 44 years old.
Let's assume Sneha's current age is x.
Sneha's mother's current age = 2x + 12
After 8 years, Sneha's age = x + 8
After 8 years, Sneha's mother's age = 2x + 12 + 8 = 2x + 20
After 8 years, Sneha's mother's age will be 20 less than three times Sneha's age: 2x + 20 = 3(x + 8) - 20
Now we can solve for x:
2x + 20 = 3(x + 8) - 20
2x + 20 = 3x + 24 - 20
2x + 20 = 3x + 4
x = 16
Therefore, Sneha's current age is 16 years old.
Sneha's mother's current age = 2x + 12
= 2(16) + 12 = 44
So, Sneha's mother is 44 years old.
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Graph this function using intercepts:
36x–20y=–1,800
Answer:
y = 9/6 x + 90
Step-by-step explanation:
1- Move the variable to the right
2- Change the signs
3- Divide both sides
4- Reorder the terms
△XYZ has coordinates
X
(
3
,
5
)
X(3,5),
Y
(
3
,
2
)
Y(3,2) &
Z
(
7
,
2
)
Z(7,2). Give the coordinates for
△
X
′
Y
′
Z
′
△X
′
Y
′
Z
′
, after rotating
90
deg
90deg counterclockwise about the origin.
Answer:
X'(-3,-5)
Y'(-3,-2)
Z'(-7,-2)
Step-by-step explanation:
Write the ordered pairs as a vertex matrix.
To rotate the ∆XYZ 90 degrees counterclockwise about the origin, multiply the vertex matrix by the rotation matrix and then you are done.
84° 128°
87°
150°
103° X
Answer:
168°
Step-by-step explanation:
Given, a hexagon.Measures of all angles given except one (x).
Angle sum of a polygon = (n - 2) x 180
= (6 - 2) x 180.
= 4 x 180 = 720°
84 + 128 + 87 + 150 + 103 + x = 720552 + x = 720x = 720 - 552x = 168°.
graph the line perpendicular to Y=4 that passes through -6,3
Solution
graph the line perpendicular to Y=4 that passes through -6,3
Since we have a horizontal line we can find the solution just with this:
X= -6
If a lemonade stand sells someone 6 lemonades for $12, what is the cost of 1 lemonade?
Answer: 2$
Step-by-step explanation:
If six lemonade are equal to 12$, then you have to divide 12$ by the number of lemonade.
12/6=2
The answer is that one lemonade equals 2$
Enter the sum in simplest form. pls answer I give brainliest
Answer:
2/5
Step-by-step explanation:
2/10+2/10=4/10
4/10 divided by 2/2= 2/5
Hope this helps!
Answer;
2/10 + 2/10 is 4/10 and then simplified it would be 2/5 because 2 goes into both 4 and 10.
2/10 + 2/10 = 4/10
4/10 = 2/5
Hope this Helps!
the distribution of heights of young men is approximately normal with mean 69.2 inches and standard deviation 2.5 inches. what is the standard score of a height of 72 inches (6 feet)?
The standard score for the distribution with mean at the height of 6 feet or 72 inches is 1.12.
The normal distribution of height of men is approximately normal with mean 69.2 inches and standard deviation of sigma=2.5 inches
According to the empirical rule of probability, about 95% observations falls within two standard deviation of mean.
Therefore,
Lower bound=μ + 2×σ
=69.2 + 2×2.5
=69.2 + 5.0
Lower bound = 74.2
Upper bound = μ - 2 × sigma
=69.2 - 5
Upper bound = 64.2
2. The distribution of the heights of young men is approximately normal with mean μ = 69.2 inches and standard deviation of σ = 2.5
The standard score of height of 72 inches is calculated by:
z = (72-69.2)/2.5
z = 2.8/2.5
z = 1.12
Therefore the standard score for the distribution with mean at the height of 6 feet or 72 inches is 1.12.
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someone please help me!!
Answer:
47
Step-by-step explanation:
All the interior angles of a triangle add up to 180 degrees
please help with algebra 2 question! arithmetic sequence
erica is playing a card game with her friend marquis. her points are shown in the following table:
round 1: 30 pts
round 2: 42 pts
round 3: 58.8 pts
marquis’s points in each round are represented by the following sequence:
50, 75, 112.5,…
in the table below, determine whether each row applies to eeica’s points or marquis’s points. select erica, marquis, or neither option.
(answers attached in pic) pls help!
Answer:
neitherMarquisEricaMarquisStep-by-step explanation:
The matching of exponential functions to table values involves matching both initial values and rate of growth. The value of a geometric series can be calculated from its formula, or can be shown by a calculator or spreadsheet.
Function determinationThe starting values of the two sequences are different, as are all of the starting values of the answer choices. Matching starting values is sufficient to identify which sum goes with which player.
The series ...
\(\displaystyle S=\sum_{k=1}^n{AB^{k-1}}\)
gives the sum of a geometric sequence with first term A and common ratio B.
The first term of Erica's series is A=30. The ratio is B=42/30 = 1.4.
The first term of Marquis's series is 50. The ratio is B=75/50 = 1.5.
Using these values in the series formula, the total score after n rounds will be ...
\(\displaystyle \text{Erica:}\quad \sum_{k=1}^n{30(1.4)^{k-1}}\qquad\text{matches Row 3}\\\\\text{Marquis:}\quad \sum_{k=1}^n{50(1.5)^{k-1}}\qquad\text{matches Row 2}\)
Total scoreThe explicit expression for these sums is ...
\(S=A\dfrac{B^n-1}{B-1}\)
Then the total scores after 6 rounds are ...
Erica: 30(1.4^6 -1)/0.4 = 489.7152
Marquis: 50(1.5^6 -1)/0.5 = 1039.0625 . . . . . matches row 4
TableThen the required table gets filled in ...
neitherMarquisEricaMarquis__
Additional comment
The values in the attached table are total scores after each round. One must subtract the previous round's total to find the points scored in a given round.
The purpose of showing totals is to permit matching the value seen in Row 4 of the table.
Use the figure below to answer the questions. Give the coordinates for the original points
and the points after the given transformation is performed on the original coordinate.
Transformation
G
Original Point
Reflect over the x-axis
Rotate 90° clockwise
Left 4 units, Up 3 units
Transformation involves changing the position of a point.
The original point is (-4,-3)When reflected over the x-axis, the point is (-4,-3)When rotated 90 degrees clockwise direction, the new point is (3,4)When translated 4 units left and 3 units up, the new point is (-8,6)Original location
From the graph, the original position is:
\(G = (-4,3)\)
Reflection
The rule of reflection over the x-axis is:
\((x,y) \to (x,-y)\)
So, we have:
\((-4,3) \to (-4,-3)\)
So, the new point is:
\(G' = (-4,-3)\)
Rotation
The rule of 90 degrees clockwise rotation is:
\((x,y) \to (y,-x)\)
So, we have:
\((-4,3) \to (3,4)\)
So, the new point is:
\(G" = (3,4)\)
Translation
The translation rule of 4 units left and 3 units up is:
\((x,y) \to (x-4,y+3)\)
So, we have:
\((-4,3) \to (-4-4,3+3)\)
\((-4,3) \to (-8,6)\)
So, the new point is:
\(G"' = (-8,6)\)
See attachment for the original point and the transformed points
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Which of the following would use a histogram to represent the data?
speed of car
state of license on car
type of car
car color
Answer:
Speed of car most likely
Step-by-step explanation:
The weight of one serving of trail mix is 2. 5 ounces. How many servings are there in 22. 5 ounces of trail mix?.
9 servings are there in 22.5 ounces of trail mix.
Given:
The weight of one serving of trail mix is 2. 5 ounces.
1 serving = 2.5 ounces
Number of servings = 22.5 ounces / 1 serving
= 22.5 / 2.5
= 225/10/25/10
= 225/25
= 9 servings.
Therefore 9 servings are there in 22.5 ounces of trail mix.
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What do you put on the X axis of an ogive?
The X-axis (horizontal axis) often represents a "class boundaries" of such an ogive, whereas the Y-axis (vertical axis) typically shows the frequency count.
Explain about the ogive graph?A sort of frequency polygon that displays cumulative frequencies is an ogive, often known as a cumulative frequency polygon.
In other words, the graph adds the cumulative percents from left to right.On an ogive graph, "class boundaries" are shown along the x-axis while cumulative frequency is shown on the y-axis. Comparable to a histogram, an ogive features a single point that indicates in which the top right corner of the rectangular would be located in place of rectangles. This type of graph is typically simpler to make from such a frequency table.Thus, The X-axis (horizontal axis) often represents a class boundaries being measured of such an ogive.
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For their unit on the legislative branch, Mr. Escue's government class will have 1 test and 5 homework assignments to complete.
If the test is worth 100 points and each homework assignment is work 20% of the test, how many points may be earned during this unit?
Answer:
100
Step-by-step explanation:
Answer:
200
Step-by-step explanation:
guys im making a poster for my accounting project where we promote a business (so basically im opening up a store that sells roller skates) and i want some ideas of what makes my business different from others and why others should be interested instead of competitors
Chelsea has 0.90 pounds of meat. She uses 0.15 pound of meat to make one hamburger. How many hamburgers can Chelsea make with the meat she has?
Chelsea can make 6 hamburgers with the meat she has.
- To find out how many hamburgers Chelsea can make with 0.90 pounds of meat, we need to divide the total amount of meat by the amount of meat needed to make one hamburger.
- According to the problem, Chelsea uses 0.15 pound of meat to make one hamburger.
- So we need to divide 0.90 (the total amount of meat) by 0.15 (the amount of meat needed for one hamburger).
- When we do the division, we get 6.
- This means that Chelsea can make 6 hamburgers with the meat she has.
To calculate the number of hamburgers that Chelsea can make with 0.90 pounds of meat, we need to use the information given in the problem and perform a simple division calculation.
Firstly, we know that Chelsea has 0.90 pounds of meat. This is the total amount of meat that she has available to make the hamburgers.
Secondly, we know that it takes 0.15 pound of meat to make one hamburger. This is the amount of meat needed for each individual hamburger.
To find out how many hamburgers Chelsea can make with the meat she has, we need to divide the total amount of meat by the amount of meat needed for each hamburger.
So, the calculation looks like this:
0.90 ÷ 0.15 = 6
This means that Chelsea can make 6 hamburgers with the meat she has.
In conclusion, the answer to the problem is that Chelsea can make 6 hamburgers with the 0.90 pounds of meat that she has available.
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(ILL MARK BRAINLIEST)
Triangle QRS is rotated 180° about the origin.
On a coordinate plane, triangle Q R S has points (negative 4, 1), (negative 4, 4), (2, 1).
What are the coordinates of point S’?
(2, 1)
(1, –2)
(–1, –2)
(2, –1)
Answer:
D.) or (2, -1)
Step-by-step explanation:
How do you graph this ,helppppppppp