Answer:
Sample survey.
Step-by-step explanation:
In this scenario, a company redesigned its website and wishes to collect data so as to see if the website is user friendly. Thus, the best way to collect the data is through a sample survey from some members of the total website users.
A sample survey is a statistical method used for the collection of data from a target population in order to draw an inference and reach a logical conclusion.
In Statistics, sampling can be defined as a process used to collect or select data (objects, observations, or individuals) from a larger statistical population using specific procedures.
There are various types of sampling used by researchers and these are;
1. Random sampling.
2. Systematic sampling.
3. Stratified sampling.
4. Cluster sampling.
Answer:
sample survey
Step-by-step explanation:
edgen
If 9 : x = x:4, then x =
Answer:
x = ±6
Step-by-step explanation:
9 : x = x : 4
Cross multiply
36 = x²
Take the square root of both sidesw
x = ±6
Please help me!!
what is an equation in standard form of an ellipse centered at the origin with vertex (-4,0) and co-vertex (0,5)???
Answer:
[tex]\frac{x^2}{16}+\frac{y^2}{25}=1[/tex]
Step-by-step explanation:
The equation of an ellipse with a center at [tex](h, k)[/tex] and vertices at [tex](h\pm a, k)[/tex] and [tex](h, k\pm b)[/tex] is given by [tex]\frac{(x-h)^2}{a^2}+\frac{(y-k)^2}{b^2}=1[/tex].
Since two vertices are located at (-4, 0) and (0, 5), the other vertices must be located at (4, 0) and (0, -5).
What we know:
Center of (0, 0)From [tex](h\pm a, k)[/tex], [tex]a[/tex] must be 4From [tex](h, k\pm b)[/tex], [tex]b[/tex] must be 5Thus, we have:
[tex]\frac{(x-0)^2}{4^2}+\frac{(y-0)^2}{5^2}=1\implies \boxed{\frac{x^2}{16}+\frac{y^2}{25}=1}[/tex]
Help? Geometry, Right Triangles.
(see attachment)
Answer: D
Step-by-step explanation:
solve (x+5) 3/2 = (x-1)^3
What do x and y equal?
A tube of toothpaste holds 75 ml.
How many tubes can be filled using 3 litres of toothpaste?
Pls help
Answer:
40 tubes
Step-by-step explanation:
1 liter = 1,000 milliliters
2 liters = 2,000 milliliters
3 liters = 3,000 milliliters
A tube of toothpaste = 75 ml
How many tubes can be filled using 3 litres of toothpaste?
Let
x = number of tubes
x tubes of toothpaste = 3000 ml
x = 3000 ml / 75 ml
x = 40
x = number of tubes = 40 tubes
need an answer asap will give the first answer brainliest
Answer:
The answer would be the first one.
m = -3n
Step-by-step explanation:
Answer:
m = -3n
Step-by-step explanation:
-6 = (-3)2 True
-12 = (-3)4 True
-18 = (-3)6 True
PLZ THIS IS DUE
Is triangle ABC: A(2, -1), B(5, -1) C(5, 3), a right triangle? Explain in at least 5-7 sentences at a minimum.
Answer:
yes it is because a right angle triangle has a 90 degree angle and the other sides are equal
The solution to this system of equations lies between the x-values -2 and -1.5. At which x-value are the two equations approximately equal? y = 1 / x + 2 y = x^2 + 2
Answer: The value of 'x' is -1.8 where the given equation approximately equal
Step-by-step explanation:
It is given that the value of 'x' lies in the range of -2 to -1.5 and we need to find out the value of 'x' where both the equations become equal
Given set of equations:
[tex]y=\frac{1}{(x+2)}[/tex] .....(1)
[tex]y=x^2+2[/tex] .....(2)
Plugging value of 'y' from equation 2 to equation 1:
[tex]x^2+2=\frac{1}{(x+2)}\\\\x^2+2(x+2)=1\\\\x^3+2x^2+2x+4=1\\\\x^3+2x^2+2x+3=0[/tex]
On solving, the real root comes out to be, x = -1.8
Hence, the value of 'x' is -1.8 where the given equation approximately equal
What is the area of the trapezoid below?
Answer:
Step-by-step explanation:
Answer:
The answer is 34.5cm2. (don't blame meh if wrong)
Step-by-step explanation:
Step 1: Find the area of the square; 4.6 x 3.2 = 14.72
Step 2: Find the bottom length to find the area of the triangle; 7.5 - 3.2 = 4.3
Step 3: Find the area of the triangle; 4.3 x 4.6 = 19.78
Step 4: Add the area of the square to the area of the triangle; 14.72 + 19.78 = 34.5
suma de letras y numeros
the 6th term of a gp is -2/29,and it's first term is 18.what is the common ratio
Answer:
-0.329
Step-by-step explanation:
The formula for Geometric ratio is
an = ar^n - 1
Where
a = First term = 18
r = Common ratio = ?
n = Number of term= 6
Hence
a6 = 18 × r^6-1
From the question
a6 = -2/29
Hence:
-2/29 = 18 × r^6-1
-2/29 = 18 × r⁵
Divide both sides by 18
-2/29 ÷ 18 = 18 × r⁵/18
-2/29 × 1/18 = r⁵
r⁵ = -1/261
Take the fifth root of both sides
⁵√(r⁵) = ⁵√(-1/261)
r = -0.3286032834
Approximately = -0.329
Therefore, Common ratio = -0.329
For each of the following quadrilaterals, select all the properties that must be true.
Two angles of a triangle measure fifty degrees and forty degrees. What does the third angle measure?
Need ans ASAP giving u 15points
Answer:
The answer is 90 degrees
Answer:
third angle is 90 degree
Step-by-step explanation:
one angle is 50 degree
another angle is 40 degree
third angle = ?
let third angle be x
50 + 40 + x =180 degree (sum of interior angles of a trianglle)
90 + x =180
x = 180 - 90
x = 90 degree
please answer asap (look at picture) please answer both
Find the equation of the line that is parallel to the line
y = 3x + 3 and passes through the point (10,1). Write the
equation in slope-intercept form.
9514 1404 393
Answer:
y = 3x -29
Step-by-step explanation:
The parallel line will have the same slope: 3. The y-intercept can be found from ...
b = y -mx
b = 1 -(3)(10) = 1 -30 = -29
Then the slope-intercept equation is ...
y = 3x -29
Each pair of figures is similar find the missing side I need this fast please
Answer:
hear is explaninaton in attachment
Step-by-step explanation:
x value is 5
Write an expression in simplest form that represents the total amount. Suppose you buy 3 shirts that each cost s dollars, a pair of shoes for $50, and jeans for $30. a. 3+80s b. 83s c. s(80s) d. 3s+80
Answer:
d
Step-by-step explanation:
3 shirts that each costs s dollars would be 3s
jeans is $30, pair of shoes is $50, add $30+$50 and you'll end up with $80
so, an expression in the simplest form that represents the total cost would be:
d. 3s+80
The expression in simplest form that represents the total amount is option d. 3s+80.
In order to understand why this is the correct expression, let us break down the given information step-by-step:
1. You buy 3 shirts that each cost s dollars. This implies that since you are buying 3 shirts, the cost of the shirts is 3s dollars.
2. You also buy a pair of shoes for $50. So, the cost of the shoes is $50.
3. Additionally, you buy jeans for $30.
To find the total amount, we need to add up the cost of the shirts, shoes, and jeans together.
The cost of the shirts is 3s dollars.
The cost of the shoes is $50.
The cost of the jeans is $30.
The cost of the shirts (3s) plus the cost of the shoes ($50) plus the cost of the jeans ($30) is: 3s + $50 + $30.
Therefore, the total amount is 3s + $50 + $30.
Since $50 and $30 are constant values, simplifying the expression further yields: 3s + 80.
Hence, the correct expression in simplest form that represents the total amount is option d. 3s + 80.
Learn more about total amount: https://brainly.com/question/30981528
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6;10;14
find the next two terms of the sequence
Answer:
18
Step-by-step explanation:
Add 4
Answer: 18;22
Step-by-step explanation:
Let's start by finding the common difference.
10-6=4
14-10=4
The common difference is 4 meaning to get to the next numbers we must add 4.
6+4=10
10+4=14
14+4=18
18+4=22
Find the side length of x (trigonometry)
Answer:
x=12.124
Step-by-step explanation:
here 7 and x are the legs of the triangle where as 14 is hypotenuse because it is opposite opposite to 90 degree.
using pythagoras theorem
a^2 + b^2 = c^2
here and b are legs and c is hypotenuse
7^2 + x^2 = 14^2
49 + x^2 = 196
x^2 =196-49
x^2 =147
x=[tex]\sqrt{147}[/tex]
x=12.1243
x=12.124 (after converting to the nearest hundredth)
i need help plz
99 points waiting for the person that answers the question
Answer:
No
Step-by-step explanation:
This is from a website so you might have to rephrase it but Direct variation describes a simple relationship between two variables . We say y varies directly with x (or as x , in some textbooks) if:
y=kx
for some constant k , called the constant of variation or constant of proportionality . (Some textbooks describe direct variation by saying " y varies directly as x ", " y varies proportionally as x ", or " y is directly proportional to x .")
This means that as x increases, y increases and as x decreases, y decreases—and that the ratio between them always stays the same.
The graph of the direct variation equation is a straight line through the origin.
what is a way to describe the shape of this graph
Please help asap, this is timed!!!!!!
I'll mark brainliest!
Which of the following is the graph of y = sin(0.5x)?
D. Edge 2021 :)
Answer:
You did not include the graphs, but I can explain how the graph is and so you can recognize it.
1) for x = 0, y = sin(0) = 0, so the origin (0,0) is part of the graph.
2) The range of the function is the interval [-1, 1]. This is, y is from -1 to 1, and the graph oscilates (is a wave) between those minimum and maximum.
3) The periodicity, P, of the function is such that 0.5P = 2π = > P = 4π
That means that the values repeat every 4π interval (which is the same that 720°)
4) The zeroes of the function are 2π * n, where n is any whole number (negative, zero or positive).
That means that the function crosses the x-axis at
..., -6π, -4π, 2π, 0, 2π, 4π , 6π, ...
5) It is an odd function (which means that f(x) = sin(0.5x) = - f(-x) = - sin(-0.5x).
Now you have plenty information to identify the graph.
I also include a graph of the function in the attached pdf file.
Step-by-step explanation:
Answer:
d
Step-by-step explanation:
Pls help I don’t know how to do this
The right answer is a i think i don't known step by step
Step-by-step explanation:
a
a
Solve for B
A= 3( B + C )
Options:
- B= ( A - C )/ 4
- B= ( 3A - C )/ 4
- B= ( A - 3C )/ 3
(pls help i’m suffering) 3.06a Finding Standard Form by Completing the Square
Classify each as Circle, Quadratic (parabola) or other
(x - 5)2 + (v - 2) = 16
= 100
22 - x = 25
(x - 2) - (y + 5)= 10
y = 2x + 5
Step-by-step explanation:
A circle equation is represented by
[tex]x {}^{2} + {y}^{2} = r {}^{2} [/tex]
A circle have both terms to the 2nd. degree
The 1st equation, 2nd equation, 4th equation are circles.
A quadratic is represented by
[tex] {x}^{2} + bx + c[/tex]
A quadratic equation only has one term that is second degree.( meaning if x and y are both to the 2nd degree, it will not be a quadratic, it will be a circle.
The 3rd equation is a quadratic.
The fifth equation has a leading coefficient at the degree of 1 so it is other(linear)
This language derives from the area of a square being its side length multiplied by itself. The word "quadratic" comes from quadratum, the Latin word for square.
What is a quadratic function?f(x) = ax2 + bx + c, where a, b, and c are numbers and an is not equal to zero, is a quadratic function. A parabola is the shape of a quadratic function's graph. Although the "width" or "steepness" of a parabola can vary as well as its direction of opening, they all share the same fundamental "U" form.
From the given table we can get the dy/dx which is the slope (m) ,
Therefore,
dy/dx = (7 - 10 ) / ( 4 - 3 )
dy/dx = -3
Now,
( y - y1 ) = m ( x - x1 )
Putting the value from the table,
( y - 10 ) = -3 ( x -5 )
=> y - 10 = -3x + 15
=> 3x + y = 25
To learn more about quadratic function refer
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PLEASE HELPPPP!!!!!!!!!!!!!!!!!!!!
Answer:
It would be 55,200
Step-by-step explanation:
If she assumes her raise goes up by 5 % each year, her raise i n. 4 years will be 20%. So, 46,000x0.2= 9200. 9200+ 46,000 = 55,200.
how many ounces is 13 lbs?
Answer:
208 oz
Step-by-step explanation:
So do 16x13=208
13 lbs=208 oz
brainliest pls?
Answer:
its 208 ounces
Are angles 1 and angle 4 vertical? Are angles 3 and angle 5 vertical?
Answer:
All of them are not vertical angles.
Step-by-step explanation:
Because they are not directly vertical from each other.
