Answer: 469.6666
the correct answer is c I believe
Step-by-step explanation:
Answer: B) pls give me brainliest
state the value of
\( \tan(60°) + \cot(60°) \)
rationalise the denominator if needed !
thankyou ~
Answer:
\(tan(60)+cot60)\\\sqrt{3} +\frac{1}{\sqrt{3} } \\\frac{3+1}{\sqrt{3} } \\\frac{4}{\sqrt{3} } *\frac{\sqrt{3} }{\sqrt{3} } \\\frac{4\sqrt{3} }{3}\)
Hope it will help you a lot.
Step-by-step explanation:
Answer:
\(\dfrac{4\sqrt3}{3}\)
Step-by-step explanation:
\(\pink{\frak{Given }}\Bigg\{ \sf \tan(60^o) + \cot(60^o)\)
And we need to find out the value of given expression . As we know that the value of ,
\(\sf \longrightarrow tan 60^o = \sqrt3 \)
And ,
\(\sf \longrightarrow cot 60^o = \dfrac{1}{tan60^o}=\dfrac{1}{\sqrt3} \)
Substituting the values in the given expression ,
\(\sf \longrightarrow tan 60^o + cot 60^o\\\)
\(\sf \longrightarrow \sqrt3 +\dfrac{1}{\sqrt3}\\ \)
Take LCM as √3 and simplify ,
\(\sf \longrightarrow \dfrac{(\sqrt3)(\sqrt3) +1}{\sqrt3}\\\)
Simplify ,
\(\sf \longrightarrow \dfrac{3+1}{\sqrt3}=\dfrac{4}{\sqrt3} \)
Rationalize the denominator by multiplying numerator and denominator by √3 .
\(\sf \longrightarrow \dfrac{(4)(\sqrt3)}{(\sqrt3)(\sqrt3)} \)
Simplify by multiplying ,
\(\sf \longrightarrow \boxed{\bf \dfrac{4\sqrt3}{3}} \)
Yavonne has $15.90 in her checking account. She needs to buy items that cost $3.18 each. How many of these items can she buy?
a
4
b
5
c
6
d
7
Answer:
5.
Step-by-step explanation:
15.90 / 3.18 =
Which set of ordered pairs represents a linear relationship?
Answer:
Were there options or do we just have to make up some ordered pairs that would be a linear relationship? Maybe there was a image?
#1
Real World Scenario
How far from the base of a barn
do you need to put a 20 foot
ladder so that the top of the
ladder will be 15 feet high? If
necessary, round your answer to
the nearest tenth.
Answer:
The top of the ladder is 12.69 feet away from the ground
Step-by-step explanation:
Length of the ladder is given to be 15 foot
Also, The base of the ladder is 8 feet away from the wall.
Now, The height of the ladder will be perpendicular to the surface of the ground
So, It will form a right angled triangle
Now, The base of the triangle will be 8 feet
Hypotenuse of the triangle will be 15 feet
And we need to find the perpendicular height of the triangle
By using Pythagoras theorem, We have
Hypotenuse² = Base² + Perpendicular²
⇒ 15² = 8² + Perpendicular²
⇒ Perpendicular = 12.69 feet
Therefore, The top of the ladder is 12.69 feet away from the ground
Or 12.70 from rounding to your nearest tenths
Help this helps and sorry for it being long
Given A (-3, 4), B(0, 1), and C(4, 2), reflect as follows Ry-axis(ABC). Which of the following is NOT one of the points for the image? a.(3,4) b.(0,3) c.(0,1) d.(-4,2)
after refletion about y axis
the new points will be
A(-3,4) to A' (-(-3), 4) = (3, 4)
B(0,1) to B' (0,1)
and
C(4,2) to C' (-(4) , 2 ) = (-4 , 2)
so , (0, 3 ) is the point that is not the point of the image .
thus, the answer is option b
is - 5/1 a integer?
Solve for x. Round to the nearest tenth of a degree, if necessary.
Answer:
x ≈ 56.6°
Step-by-step explanation:
using the cosine ratio in the right triangle
cos x = \(\frac{adjacent}{hypotenuse}\) = \(\frac{EF}{DF}\) = \(\frac{4.4}{8}\) , then
x = \(cos^{-1}\) ( \(\frac{4.4}{8}\) ) ≈ 56.6° ( to the nearest tenth )
Find the distance between the points (13,19) and (13,-14)
Answer:
\(d = 33\)
Step-by-step explanation:
Distance Formula: \(d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\)
Simply plug in the 2 coordinates into the distance formula to find distance d:
\(d = \sqrt{(13-13)^2+(-14-19)^2}\)
\(d = \sqrt{(0)^2+(-33)^2}\)
\(d = \sqrt{(-33)^2}\)
\(d = 33\)
Answer:
the distance between the two points is 33 units.
Step-by-step explanation:
because the two points have the same x value, we only need to consider the y values.
find the difference to solve for the distance.
\(19-(-14)\\19+14\\33\)
the answer is 33 units.
hope this helps :)
four different statistics have been proposed as estimators of a population parameter. to investigate the behavior of these estimators, 500 random samples are selected from a known population and each statistic is calculated for each sample. the true value of the population parameter is 75. the graphs below show the distribution of values for each statistic.
The statistics that seem to be fair estimators of the population parameter are statistics A, according to the information provided.
What is meant by statistic?The collection, description, analysis, and inference of conclusions from quantitative data are all part of the field of statistics, which is applied mathematics. Calculus of differential and integrals, linear algebra, and probability theory are key mathematical concepts in statistics.
Statistics is a technique used in mathematics for deciphering, analyzing, and summing up data. The following characteristics are used to categorize the different types of statistics: Inferential and descriptive statistics. We analyze and interpret the data based on the way it is presented, such as in tables, bar graphs, or pie charts.
The unbiased estimator of the population parameter is statistic A, it should be noted. This is due to the fact that it is centered around the population parameter of 75.
The population parameter would be more accurately estimated by statistic A. This is so because the population mean of 75 is the same as the sample mean of 75.
Given that statistic D is equal to the population means, it would serve as a more accurate estimator of the population parameter.
Last but not least, it is important to remember that statistic C has no distribution shape.
The complete question is:
Four different statistics have been proposed as estimators of a population parameter. To investigate The behavior of these estimators, 500 random samples are selected from a known population and it statistic is calculated for each sample. The true value of the population parameter is 75. the graphs below show the distribution of values for each statistic.
A. Which of the statistics appear to be unbiased estimators of the population parameter? How can you tell?
B. Which of the statistics a or B would be better estimate or of the population parameter? Explain your choice.
C. Which of the statistics of your day would be better estimator of the population parameter? Explain your choice.
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Maple Street is 4 miles long. There is a house every 1/4 of a mile. How many houses are there on Maple Street?
There are 24 houses on Maple Street.
There are 12 houses on Maple Street.
There are 16 houses on Maple Street.
There are 20 houses on Maple Street.
Answer: There are 16 houses
Step-by-step explanation: Why? Because of the fact that every house is 1/4 house and you can multiply that by every time 1/4x4 then 1/4x4 1/4x4 and 1/4x4 and you have 16 houses.
m = Y2-yi X2-X1 Find the slope of the line that passes through these two points. Point 1(-4,6) Point 2(-1,3) X1 yı X2 Y2 m = [?] Enter
P1 = (-4, 6)
P2 = (-1, 3)
slope = m = (y2 - y1) / (x2 - x1)
m = (3 - 6) / (-1 + 4)
m = -3/3
m = -1
Result slope = -1
Find the area of the region bounded by
• y = √x,
• y = 2-x², and
y = -√2x.
The area of the Region bounded by y = √x, y = 2-x², and y = -√2x is $\frac{32}{15}$.
To find the area of the region bounded by y = √x, y = 2-x², and y = -√2x, we need to graph the equations and determine the points of intersection. Then we can integrate to find the area.
Firstly, we'll graph the equations and find the points of intersection:
y = √xy = 2-x²y = -√2xGraph of y = √x, y = 2-x², and y = -√2xWe need to solve for the points of intersection, so we'll set the equations equal to each other and solve for x:√x = 2-x²√x + x² - 2 = 0Let's substitute u = x² + 1:√x + u - 3 = 0√x = 3 - u
(Note: Since we squared both sides, we have to check if the solution is valid.)u = -2x²u + x² + 1 = 0 (substituting back in for u
)Factoring gives us:u = (1, -2)We can then solve for x and y:x = ±1, y = 1y = 2 - 1 = 1, x = 0y = -√2x = -√2, x = 2y = 0, x = 0Graph of y = √x, y = 2-x², and y = -√2x with points of intersection to find the area, we need to integrate.
The area is bounded by the x-values -1 to 2, so we'll integrate with respect to x:$$\int_{-1}^0 (2 - x^2) - \sqrt{x} \ dx + \int_0^1 \sqrt{x} - \sqrt{2x} \ dx$$
We can then simplify and integrate:$$\left[\frac{2x^3}{3} - \frac{2x^{5/2}}{5/2} + \frac{4}{3}x^{3/2}\right]_{-1}^0 + \left[\frac{2x^{3/2}}{3} - \frac{4x^{3/2}}{3}\right]_0^1$$$$= \frac{4}{3} + \frac{4}{3} - \frac{4}{15} + \frac{4}{3} - \frac{4}{3}$$$$= \frac{32}{15}$$
Therefore, the area of the region bounded by y = √x, y = 2-x², and y = -√2x is $\frac{32}{15}$.
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COULD YALL HELP ME ?!???!
Answer:
28 degrees
Step-by-step explanation:
We know that (4x + 7) + (2x + 5) add up to a straight angle = 180 degrees, so we have the equation 4x + 7 + 2x + 5 = 180.
By combining like terms, we get 6x + 12 = 180.
Subtract 12 from both sides of the equation to get 6x = 168. Divide both sides by 6 and you get x = 28.
i will give you brainliest whoever answers correct first!!
Answer:
isn't it just 3
Step-by-step explanation:
isn't it just 3 bc there r only 3 students out of the entire class that doesnt play both instrument and sports
Answer:
12.5% chance
Step-by-step explanation:
There 24 students in total
When you divide the fraction out, you get 0.125. To turn that into a percentage, you simply multiply by 100. 0.125*100=12.5% you can check this by taking 12.5% of 24, which will give you an answer of 3.
Find the area of this trapezium.
Answer:
The area of Trapezium is 21 cm²
Step-by-step explanation:
Divide the trapezium into a Triangle and Rectangle.
The length of the side is given in the figure behind.
So,
The area of Trapezium
= The area of Triangle + The area of Rectangle
= 1/2 × 4 × 3 + 5 × 3 cm
= 6 + 15 cm
= 21 cm²
Thus, The area of Trapezium is 21 cm²
-TheUnknownScientist 72
Thank you for the help!
Answer:
c 57
Step-by-step explanation:
1/3 of 3/7=__
pls i need help
Answer:
the answer is 0.14285714285 theres whole answer because i dont know if u need it rounded or not
Step-by-step explanation:
the bitly stuff is not real
Christopher works as a translator of
literature. He gets paid different
amounts for translating articles and for
translating book chapters. In January,
he was paid $340 for translating 3 book
chapters and 2 articles. In February,
he was paid $380 for translating 1 book
chapter and 6 articles. How much is
Christopher paid, in dollars, to translate
each article?
Answer:
50$
Each book is equal to 80 now here's the math
50x2=100 340-100=240/3=80
380-80=300/6=50
This is all coming from a high schooler so I may be wrong however this is pretty basic and if I'm wrong flame me man
Two machines at a sneaker factory are
being inspected. Which measures of center and variability
should the inspector use to compare the machines?
The measure of center used to compare the machines is median and the measure of variability is interquartile range.
What are Measures of Center and Measures of Variability?The measures of center of data are Mean, Median and mode.
The measures of variability of data are Range, Interquartile Range, Standard deviation and Variance.
The data are given in stem and leaf plot.
The data set for Machine A are,
18, 19, 21, 22, 25, 27
The data set for Machine B are,
6, 25, 26, 26, 27, 29
Since the dataset of machine B consists of value 6, which is low value compared to other values, it can be considered as outlier.
So Median is the best measure of center if the data contains outliers.
Because of the same reason that the data set of machine B contain outlier, the measure of variability that is best is interquartile range. Because Range, Standard deviation and Variance are affected by outlier.
Hence the measure of center is median and the measure of variability is interquartile range.
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May I please get help with this. I have tried multiple times to find the correct answers but still could not get the correct or at least accurate answers
both triangles are similar, so:
m∠M = 76°
2x = 2
x = 2/2
x = 1
m∠MLJ = 65°
The side of a triangle are in the ratio 4:4:3 what kind of triangle is it (b) calculate the smallest angle of the triangle to the nearest degree
The smallest angle of the equilateral triangle is 60 degrees
If the sides of a triangle are in the ratio 4:4:3, it implies that the lengths of the sides are proportional.
To determine the type of triangle, we examine the side lengths. Since all three sides are equal in length, we have an equilateral triangle.
For an equilateral triangle, all angles are equal. To calculate the smallest angle, we divide the total sum of angles in a triangle (180 degrees) by the number of angles, which is 3:
Smallest angle \(= \frac{180}{3} = 60\)\) degrees.
Therefore, the smallest angle of the equilateral triangle is 60 degrees (to the nearest degree).
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At one college, GPAs are normally distributed with a mean of 2.9 and a standard deviation of 0.6. Find the 70th percentile.
The GPA corresponding to the 70th percentile at the college is approximately 3.246 based on standard deviation.
We can use the conventional normal distribution table or a calculator with a normal distribution function to determine the 70th percentile of GPAs at a college, which are normally distributed with a mean of 2.9 and a standard deviation of 0.6.
The inverse normal distribution function with a mean of 2.9, a standard deviation of 0.6, and a percentile of 70 can be used on a calculator. This results in:
\(3.246 for invNorm(0.7, 2.9, 0.6).\)
As a result, the GPA that represents the 70th percentile is roughly 3.246.
We can determine the z-score corresponding to the 70th percentile, which is 0.5244, by using a common normal distribution table. Thus, we may apply the equation z = (x - ) /, where x is the GPA that corresponds to the 70%ile, is the mean, and is the standard deviation, and all three variables have values of 2.9. After finding x, we obtain:
0.5244 = (x - 2.9) / 0.6
x = 3.246
Once more, doing so yields the same outcome as using a calculator.
In conclusion, the GPA at the college that represents the 70th percentile is roughly 3.246.
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Distribute the following perfect square: 6x(8x - 9y)² = ?
Answer:
384x² - 486xy²
Step-by-step explanation:
I think this is the answer all I did us first i solved the brackets then I multiplied them by 6x
What property does the statement show?
4
(4 X 8) X 3 = (8 X 4) X 3
Answer:
commutative property
Step-by-step explanation:
(a × b) × c = (b × a) × c
It doesn't matter what way round the numbers in the brackets are, the result is the same.
Hope this helps!
The table below shows the population of a town, recorded in different years.
Use this table to complete the sentence.
Year
2000
2006
2012
Population of
the town
27,488
18,906
22,183
Between 2000 and 2006, the population
of the town increased / decreased
by
%, rounded to the nearest 19.
From the given table of the population, between 2000 and 2006 the population of the town decreased by 31.2%.
As given in the question,
Population of a town given in the table
Year Population of the town
2000 27,488
2006 18,906
Population of 2006 < population of 2000
Decrease in population = 27,488 - 18,906
= 8,582
Decrease of the population in percentage = (Difference/original) ×100
= ( 8,582 / 27,488 ) × 100
= 31.2%
Therefore, from the given table of the population, between 2000 and 2006 the population of the town decreased by 31.2%
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Answer:
32%
Step-by-step explanation:
27488-18906=8582
27488/8582=3.2
3.2x100=32
decrease by 32
mark me brainliest the other answer is wrong
Which statement is true?
A. 3.5 = 8/10
B.35 > 3/10
C. 35/100 < .35
D. 3 3/10 = .35
Please make sure to put an explanation.
Answer:
The correct answer is C.
Explanation:
A. 3.5 = 8/10 is not true because 3.5 is equivalent to 7/2, which is not the same as 8/10 (which reduces to 4/5).
B. 35 > 3/10 is true because 35 is a larger number than 3/10.
C. 35/100 < .35 is true because 35/100 reduces to 7/20, which is less than .35.
D. 3 3/10 = .35 is not true because 3 3/10 is equivalent to 33/10, which is not the same as .35 (which is equivalent to 7/20).
What is 4/5 of 9 2/3
Answer: 368/15
Step-by-step explanation:
Answer:
it is 1.2 which is in a fraction is 1 1/5
Step-by-step explanation:
I took a picture of the question
The transformation in the picture is option c Reflection.
Given,
Reflection transformation:
A reflection is a transformation that works similarly to a mirror by switching all pairs of points that are directly across from one another along the line of reflection. A mathematical formula or the two sites it passes through can be used to define the line of reflection.
According to the law of reflection, r = I the angle of incidence and reflection are equal. θ r = θ I . At the point where the ray strikes the surface, the angles are measured in relation to the perpendicular to the surface.
Here,
In the picture the transformation is reflection.
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consider the following method, which returns an int based on its parameter x. public static int puzzle(int x) { if (x > 20) { x -
The puzzle method takes in an int x and returns an int based on its parameter x. If x is greater than 20, then the method will return x - 10.
The puzzle method takes in an int x and returns an int based on its parameter x. The formula for this method is as follows:
If x > 20, then the method will return x - 10.
For example, if x is 30, then the method will return 30 - 10 = 20.
The calculation for this method can be seen in the following example.
If x is 30, the calculation would be as follows:
30 > 20
30 - 10 = 20
Therefore, the method will return 20.
In conclusion, the puzzle method takes in an int x and returns
an int based on its parameter x. If x is greater than 20, then the method will return x - 10. The formula and calculation for this method can be seen in the example provided.
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Complete question:
What is the formula and calculation for the puzzle method that returns an int based on its parameter x?
Identify the scenarios in which the statistics are misleading.
A supermarket claims that 65% of its shoppers would like to see home delivery offered. They arrived at the conclusion by polling 50 randomly selected customers on a Tuesday afternoon.
A report by a company that manufactures hair brushes says 56% of people who buy their brushes own only one hair brush. The conclusion comes from a survey of 500 males who bought the company's brush.
A website claims that 47% of its visitors click on at least one advertisement while browsing the site. The information was collected from a database containing all the activity on the website during the past month.
A music store owner claims that about 15% of high school students in his city can play the piano. He concludes this after surveying 80 randomly selected students from the various high schools in his city.
A clothing store claims that 45% of its customers prefer skinny jeans over regular jeans. They concluded this from a survey which asked 120 randomly selected teenage customers which style they prefer.
Answer:
-A clothing store claims that 45% of its customers prefer skinny jeans over regular jeans. They concluded this from a survey which asked 120 randomly selected teenage customers which style they prefer.
-A report by a company that manufactures hair brushes says 56% of people who buy their brushes own only one hair brush. The conclusion comes from a survey of 500 males who bought the company's brush.
Please give me brainliest, I really need it.
The scenarios in which the statistics are misleading; option 1 and 3.
What is sample and statistic?A portion of population taken and analyzed to predict information about population is called sample of that population.
Ex: When someone surveys a group, then he/she surveys a portion and not whole population in general.
Those numbers who summarize information about sample are called statistic.
(Statistic is different than statistics)
The numbers which summarize information about the sample are called statistic.
The scenarios in which the statistics are misleading;
1) A clothing store claims that 45% of its customers prefer skinny jeans over regular jeans. They concluded this from a survey which asked 120 randomly selected teenage customers which style they prefer.
3) A report by a company that manufactures hair brushes says 56% of people who buy their brushes own only one hair brush. The conclusion comes from a survey of 500 males who bought the company's brush.
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