Answer:
Your answer is every number is divided by 4
Step-by-step explanation:
so for the 4th term it would be 3/4, then divide that by 4, and then divide that by 4, and so on and so forth.
14. Find the value of x.
A. x = 18
B. x = 122
C. X = 7.3
D. x = 27.7
(14 + 6x)"
1220
The International Air Transport Association surveys business travelers to develop quality ratings for transatlantic gateway airports. The maximum possible rating is 10. Suppose a simple random sample of business travelers is selected and each traveler is asked to provide a rating for the Miami International Airport. The ratings obtained from the sample of business travelers follow.
3 7 8 9 10 10 10 9 9 9 9 8 5
6 7 7 9 8 10 9 8 7 6 8 7 9
5 3 9 10 10 9 9 8 9 8 6 10 8
4 7 3 10 8 9 8 10 10 8 8
Develop a 95% confidence interval estimate of the population mean rating for Miami (to 2 decimals).
Answer:
The 95% confidence interval estimate of the population mean is (7.38, 8.46).
Step-by-step explanation:
Before building the confidence interval, we need to find the mean and standard deviation of the sample.
In this sample, there are 50 values.
Mean of the sample:
Sum of all values divided by the number of values.
With the help of a calculator, the mean is of 7.92.
Standard deviation:
Square root of the division of the sum of the difference squared between each value and the mean by the number of the values.
With the help of a calculator, the standard deviation is of 1.8958.
Confidence interval:
We have the confidence interval for the sample, which means that the t-distribution is used to solve this question.
The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So
df = 50 - 1 = 49
95% confidence interval
Now, we have to find a value of T, which is found looking at the t table, with 49 degrees of freedom(y-axis) and a confidence level of [tex]1 - \frac{1 - 0.95}{2} = 0.975[/tex]. So we have T = 2.01
The margin of error is:
[tex]M = T\frac{s}{\sqrt{n}} = 2.01\frac{1.8958}{\sqrt{50}} = 0.54[/tex]
In which s is the standard deviation of the sample and n is the size of the sample.
The lower end of the interval is the sample mean subtracted by M. So it is 7.92 - 0.54 = 7.38
The upper end of the interval is the sample mean added to M. So it is 7.92 + 0.54 = 8.46
The 95% confidence interval estimate of the population mean is (7.38, 8.46).
order these numbes from least to greatest: -2, 0, -6, 4, 8
Step-by-step explanation:
-6,-2,0,4,8
this is the answer
Factor out the great common factor from the terms of the polynomial 6x^3 - 12x^2 + 18x.
Also I need it step by step please.
Answer:
6x(x^2 - 2x + 3)
Step-by-step explanation:
By looking at these terms, we can realize that they all have a term to do with x and are divisible by 6. So, we have our GCF, which is 6x. Now, to factor out 6x, we have to divide every term by 6x; they will all divide without a remainder because we already established they were all divisible by 6x.
So, we get the division(for each term separately):
6x^3/6x - we can cancel out 6x from the numerator and denominator to get: x^2
-12x^2/6x - we can cancel out 6x from the numerator and denominator to get: -2x
-18x/6x - we can cancel out 6x from the numerator and denominator to get:
3
When we put this together we get:
6x(x^2 - 2x + 3)
This is the final answer
please help!!! Thanksss
Answer:
The image's not clear!
Step-by-step explanation:
Answer:
The answer is 30 (C)
Pls help me with this
Answer:
sin X=30 degree
cos X=30 degree
tan X=30 degree
cot X=30 degree
sec X=30 degree
Step-by-step explanation:
The degree measure of an angle in a right triangle is x, and sin x =
Which of the following expressions are also equal to
? Select all that apply.
A. Cos(x)
B. Cos(x - 459)
C. cos(90° - x)
D. Cos(60° - x)
E. COS(45° - x)
Step-by-step explanation:
I feel there is important information lost in the way you provided the problem statement.
e.g. "... also equal to ?"
equal to what ?
sin x = what ?
so, I can only guess some things.
answer C is definitely correct for any angle up to 180 degrees.
answer A is only correct for an angle of 45 or 225 degrees, where sin(x) and cos(x) are both 1/sqrt(2) or both -1/sqrt(2).
answer B is always wrong (459 degrees is no special number, this is a full circle of 360 degrees and then additional 99 degrees there is no special relationship between sine and cosine for 99 degrees, so sine and cosine cannot have the same value for any x).
answer D is always wrong, as there is always a 30 degree difference between the arguments for sine and cosine, and that can never lead to an equal value.
answer E is also always wrong, as these 45 degrees difference also block equal values.
Calculate the surface area
Translating between Tables,
Graphs, and Equations
Make a table of value and graph the equation
Y=3x-5
Answer:
Table of values
[tex]x \to y[/tex]
[tex]0 \to -5[/tex]
[tex]1 \to -2[/tex]
[tex]2 \to 1[/tex]
[tex]3 \to 4[/tex]
[tex]4 \to 7[/tex]
[tex]5 \to 10[/tex]
See attachment for graph
Step-by-step explanation:
Given
[tex]y = 3x - 5[/tex]
Solving (a): Make a table
Considering the values of x from 0 to 5, we have:
When [tex]x = 0[/tex]
[tex]y = 3x - 5 \to 3 * 0 - 5 = -5[/tex]
When [tex]x = 1[/tex]
[tex]y = 3x - 5 \to 3 * 1 - 5 = -2[/tex]
When [tex]x = 2[/tex]
[tex]y = 3x - 5 \to 3 * 2 - 5 = 1[/tex]
When [tex]x = 3[/tex]
[tex]y = 3x - 5 \to 3 * 9 - 5 = 4[/tex]
When [tex]x = 4[/tex]
[tex]y = 3x - 5 \to 3 * 4 - 5 = 7[/tex]
When [tex]x = 5[/tex]
[tex]y = 3x - 5 \to 3 * 5 - 5 = 10[/tex]
So, we have:
[tex]x \to y[/tex]
[tex]0 \to -5[/tex]
[tex]1 \to -2[/tex]
[tex]2 \to 1[/tex]
[tex]3 \to 4[/tex]
[tex]4 \to 7[/tex]
[tex]5 \to 10[/tex]
Solving (b): The graph
See attachment
PLssssssssssssssssssssssssssssssssss help.
Answer:
A. 9.8ft
Step-by-step explanation:
work out arc length using this formula
[tex]2\pi \: \times r \times \frac{\theta}{360} [/tex]
r is the radius, 7 in this case and theta(the symbol above 360) is the angle, 80 in this case
Trying again. Can someone please help me asap? Please, thank you.
Given:
Two figures.
To find:
The area of the shaded regions for both figures.
Solution:
In first figure, the shaded area is a triangle with base 15 units and height 12 units. So, the area of the shaded region is equal to area of the triangle.
[tex]A=\dfrac{1}{2}\times base\times height[/tex]
[tex]A=\dfrac{1}{2}\times 15\times 12[/tex]
[tex]A=\dfrac{180}{2}[/tex]
[tex]A=90[/tex]
Therefore, the area of the shaded region is 90 square units.
In the seconds figure, we need to subtract the area of square from the area of triangle, to get the area of the shaded region.
Area of triangle with base 15 and height 18 is:
[tex]A_1=\dfrac{1}{2}\times 15\times 18[/tex]
[tex]A_1=\dfrac{270}{2}[/tex]
[tex]A_1=135[/tex]
Area of the square with sides 6.
[tex]A_2=(side)^2[/tex]
[tex]A_2=(6)^2[/tex]
[tex]A_2=36[/tex]
Now, the area of the shaded region is:
[tex]A=A_1-A_2[/tex]
[tex]A=135-36[/tex]
[tex]A=99[/tex]
Therefore, the area of the shaded region is 99 square units.
NEED HELP PLEASE!! WILL GIVE BRAINIEST...
Find the measures for angles x, y, z.
Answer:
m∡x = 95°
m∡y = 147°
m∡z = 128°
Step-by-step explanation:
m∡z = 180-52 = 128
measure of third angle in left triangle = 180-(45+50) = 85°
m∡x = 180-85 = 95°
measure of top angle in right triangle = 180-(95+52) = 33°
m∡y = 180-33 = 147°
HELPP
A report indicated that the RoyCo corporation grew in dollar value by 40% between 2007 and 2012 but by only 12% between 2012 and 2014. Which of these factors supports the claim that the data are potentially misleading?
The given intervals of time are different.
A.The two intervals of time are kept separate.
B.The overall value of the company is unstated.
C.The basis for determining the given values are unexplained.
Answer:
y-step explanation:
What is the product? Complete the equation.
-10 • 45
please answer this question below
PLEASE HURRY
Michael needed milk to make pancakes. He poured the milk into this container
250 ml
200 ml
150 ml
100 mL
50 mL
How much milk did he pour into the container?
A 140 mL
B. 150 mL
C. 160 mL
D. 170 mL
Answer:
Step-by-step explanation:
on the 250ml ÷ 140 ml = 1L and 78757ml
on the 200 ml ÷ 150 ml = 1L and 333ml
on the 150 ml ÷ 160 ml = 9375ml
on the 100 ml ÷ 170 ml = 58832ml
plz mark me as brainliest
Write 346% as a decimal
Answer:
3.46
Step-by-step explanation:
Answer:
3.46
Step-by-step explanation:
346% = 346/100 = 3.46
Given a cylinder with a radius of 5cm and a height of 8 cm, find the volume of the cylinder. Use 3.14 for T.
0 251.2 cm3
Answer: V=628cm³
Step-by-step explanation:
V=(3.14)r²h
V=(3.14)(5²)(8)
V=628cm²
Hope this helps! Have a great night!
PLEASE HELP! No links please. Will make brainliest answer
Answer:
36
Step-by-step explanation:
Angle BEC is a right angle. The total degree of a right angle is 90. So if you subtract 90 by 54, then you get the value of the remaining angle, which is 36.
Write the equation of the line which passes through the
point (2, -3) and has a slope of —2/5
Answer:
y=-2/5x-11/5
Step-by-step explanation:
y-y1=m(x-x1)
y-(-3)=-2/5(x-2)
y+3=-2/5x+4/5
y=-2/5x+4/5-3
y=-2/5x+4/5-15/5
y=-2/5x-11/5
What is the ratio of 765000 to 100000
Answer:
153:20
Step-by-step explanation:
765000/100000
=153/20
Which algebraic expression is equivalent to the expression below? 8(4x + 6) + 19
Answer:
The answer is 32x+67
Step-by-step explanation:
Write 2.5 : 4.5 as a whole number ratio in it's simplest from.
Answer: : = 5 : 9
Step-by-step explanation:
Answer:
i think it would be 5:9
Step-by-step explanation:
Change values to whole numbers.
Convert any decimal numbers to integers by multiplying both sides by 101 = 10 to eliminate all, 1, decimal places.
We then have:
2.5 : 4.5 = 25 : 45
Try to reduce the ratio further with the greatest common factor (GCF).
The GCF of 25 and 45 is 5
Divide both terms by the GCF, 5:
25 ÷ 5 = 5
45 ÷ 5 = 9
The ratio 25 : 45 can be reduced to lowest terms by dividing both terms by the GCF = 5 :
25 : 45 = 5 : 9
Therefore:
2.5 : 4.5 = 5 : 9
Belle buys 80 pencils with fuzzy tops. She gives 4 to each of her 16 classmates. The expression for the number of pencils she has left is 80-(4-16). Complete each sentence to identify the parts of the expression.
Answer:
80÷(4÷16) = 20
Step-by-step explanation:
4÷6=4
4x4=16
80÷4=20
4x20=80
The moon appears red during a lunar eclipse because red is the __________ wavelength of light in the color spectrum present in sunlight.
longest
shortest
brightest
Answer:
Longest
Step-by-step explanation:
The moon appears red during a lunar eclipse because red is the Longest wavelength of light in the color spectrum present in sunlight.
-Please Mark As Brainliest
The picture is here can someone help me
Answer:
Relationship A
Step-by-step explanation:
We can see that when we plug the given x and y values the soloutioncomes out corrrect.
!!!Major help. I will give a brainly!!!!
Image is above or below
A.y=x/2
B.y=x+4
C.y=x-4
Dy=2x
Answer:
y = x - 4
When x = 8 , y = 8 - 4 = 4
when x = 12, y = 12 - 4 = 8
Option C
I need the answer fast pls
What is the factored form of the following expression?
25x2 + 70x + 49
(Quadratic Regressions)
A rocket is shot off from a launcher. The accompanying table represents the height of
the rocket at given times, where x is time, in seconds, and y is height, in feet. Write a
quadratic regression equation for this set of data, rounding all coefficients to the
nearest hundredth. Using this equation, find the height, to the nearest foot, at a time
of 6.4 seconds.
Answer:
y = - 15.57x² + 179.32x + 0.20
510
Step-by-step explanation:
The quadratic model obtained using a quadratic regression solver with Coefficient rounded to the nearest hundredth is :
y = - 15.57x² + 179.32x + 0.20
Where, height = y
x = time
Using the model obtained ; the height, to the nearest foot, at a time, x = 6.4 seconds.
y = - 15.57x² + 179.32x + 0.20
y = - 15.57(6.4^2) + 179.32(6.4) + 0.20
y = 510.1008
y = 510
The quadratic model obtained using a quadratic regression solver with Coefficient rounded to the nearest hundredth is :
y = - 15.57x² + 179.32x + 0.20height = y
x = time
Using the model obtained;
The height, to the nearest foot, at a time, x = 6.4 seconds.
y = - 15.57x² + 179.32x + 0.20 y = - 15.57(6.4^2) + 179.32(6.4) + 0.20 y = 510.1008 y = 510Thus, the correct answer is 510.
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