Answer:
£8.06
6.99x6=41.94
50-41.94=8.06
what are three reasons for using a mann-whitney u test?
Answer:The Mann-Whitney U test is used to compare differences between two independent groups when the dependent variable is either ordinal or continuous, but not normally distributed. ... The Mann-Whitney U test is often considered the nonparametric alternative to the independent t-test although this is not always the case.
Step-by-step explanation:that would de why
I need help please I linked the pic below thank u
Answer:
there you see nothing
Step-by-step explanation:
Answer:
there you say nothing to do it for me
A long jumper lifts off 3 m after starting his run, and lands 6 m later. When he is 8 m from the start line, he is 5 cm above and he ground. Write the equation of a parabola that models his path through the air, where x is horizontal distance from the start line in m and y is his height, in cm.
Answer:
The equation of the parabola that models the path of the long jumper through the air is [tex]y = -x^{2}+12\cdot x -27[/tex].
Step-by-step explanation:
Mathematically, we know that parabolas are second-order polynomials and every second-order polynomials, also known as quadratic functions, can be constructed by knowing three different points of the curve. The standard form of the parabola is:
[tex]y = a\cdot x^{2}+b\cdot x + c[/tex]
Where:
[tex]x[/tex] - Horizontal distance from the start line, measured in meters.
[tex]y[/tex] - Height of the long jumper, measured in meters.
[tex]a[/tex], [tex]b[/tex], [tex]c[/tex] - Polynomial constants, measured in [tex]\frac{1}{m}[/tex], dimensionless and meters, respectively.
If we know that [tex](x_{1},y_{1}) = (3\,m, 0\,m)[/tex], [tex](x_{2},y_{2}) = (8\,m, 0.05\,m)[/tex] and [tex](x_{3}, y_{3}) = (9\,m, 0\,m)[/tex], this system of linear equations is presented below:
[tex]9\cdot a + 3\cdot b + c = 0[/tex] (Eq. 1)
[tex]81\cdot a + 9\cdot b + c = 0[/tex] (Eq. 2)
[tex]64\cdot a + 8\cdot b + c = 0.05[/tex] (Eq. 3)
The coefficients of the polynomial are, respectively:
[tex]a = -\frac{1}{100}[/tex], [tex]b = \frac{3}{25}[/tex], [tex]c = -\frac{27}{100}[/tex]
The equation of the parabola that models the path of the long jumper through the air is [tex]y' = -\frac{1}{100}\cdot x^{2}+\frac{3}{25}\cdot x -\frac{27}{100}[/tex].
But we need [tex]y[/tex] measured in centimeters, then, we use the following conversion:
[tex]y = 100\cdot y'[/tex]
Then, we get that:
[tex]y = -x^{2}+12\cdot x -27[/tex]
Where [tex]x[/tex] and [tex]y[/tex] are measured in meters and centimeters, respectively.
The equation of the parabola that models the path of the long jumper through the air is [tex]y = -x^{2}+12\cdot x -27[/tex].
The senior class is selling t- shirts to raise money. They purchased 550 t- shirts and paid a delivery fee of $ 15. Total cost, including delivery fee was $4415. What was the cost of each t-shirt? Write equation
Answer:
Do 4415 - 15 to take away delivery fee
Then you have 4400
Divide by 550
4400/550
8 dollars per shirt
Step-by-step explanation:
Write 2/6 in lowest terms:
Submit
URGENT I NEED HELP PLEASE
What is the value of this expression when a = 3 and b=-2?
2
3a06
2a-165
Answer:191/94 i hope this helps!!(✿◠‿◠)
A piano teacher charges students $20.25 each month, plus $5.25 per hour for lessons.
Which expression and value represent the total the instructor will charge a student for hours of lessons in a month
and the amount the instructor would charge a student for 15 hours of lessons in a month?
$20.25 -2; $15
$20.25 +x: $25.50
O $20.25 - $5.25x; $58.50
O $20.25 + $5.25x; $99
Answer:
The answer should be D. $20.25+$5.25x; $99
Step-by-step explanation:
y=mx+b
m=$5.25
x=15
b=$20.25
This gives us:
5.25x + 20.25
5.25(15)+20.25
78.75+20.25
y=99
Answer: 20.25 + 5.25x ; 99
Hope this helps!
Which function is a translation of the parent absolute value function
Answer:
Which function is a translation of the parent absolute value function
Step-by-step explanation:
f(x)=|x+6|
Answer: B
f(x)= |x+6|
Perform the indicated operation.
f ( x ) = 2 x 2 − 3 x
g ( x ) = 4 x + 4
Find ( f + g ) ( x )
Answer: [tex](f+g)(x)=2x^{2} +x+4[/tex]
Step-by-step explanation:
Add both of the functions together
[tex](2x^{2} -3x)+(4x+4)\\2x^{2} +x+4[/tex]
Alan started typing at 3:30 and stopped at 3:36 he typed 96 words how many words did he type per minute
Answer:
16 wpm
Step-by-step explanation:
Noah drew 14 hearts, 1 star, and 25 circles. What is the ratio of circles to hearts?
Answer:
14:25 is the ratio
Answer:
25 : 14
Step-by-step explanation:
If there are 25 circles
&
14 hearts, the ratio is 25 : 14
Z-1.75=3.82 one step equation
Answer:
[tex]z+5.57[/tex]
Step-by-step explanation:
Answer:
Z=5.57
Step-by-step explanation:
Z-1. 75=3.82
get the variable by itself by adding 1.75 to both sides and you get Z=5.57
what is 200 divided by 300000
200 divided by 300000 = 0.000666666666667
There are 4 triangles and 2 circles. What is the simplest ratio of circles to triangles?
Answer:1:2
Step-by-step explanation:
it is this answer because you have 2 circles for 4 triangles, you can simplify that by dividing each number by 2 and you get 1 and 2
Answer:
1:2
Step-by-step explanation:
it would originally be 2:4 But both are divisible by 2 so they simplify down to 1:2........2÷2=1 and 4÷2=2 since the ratio has to be circles to triangle the 1 goes first then the 2
I need help please....
Answer:
Step-by-step explanation:
a: 2(-3x - 2)/2 = -3x - 2
c: -(6x +4)/2 = (-6x - 4)/2
d: -3x -2 when the brackets are removed and the terms are multiplied by -1/2
Marc's elevation decreases by 350 meters as he rides his bike down to the bottom of a hill. He did the ride in 5 equal stages. How much did Marc's elevation change during each stage? Be sure to indicate the units of each stage.
Answer: 70 meters
Step-by-step explanation: In order to figure out how much Marc's elevation decreased equally for each stage you need to get the original elevation (350) and divide that by 5 (the # of stages).
Stage 1: 70m
Stage 2: 70m
Stage 3: 70m
Stage 4: 70m
Stage 5: 70m
Which expression equals -8?
A) 12 + (-4)
B) -4 x (-2)
C) 24 ÷ (-3)
D)-8x (-1)
Answer:
C
Step-by-step explanation:
A equals 8
B eqauls 8
C equals-8
D equals 8
Traveling carnivals move from town to town, staying for a limited number of days before moving to the next stop. The management of a certain carnival knows that each
time it opens in a new town, it can expect to bring in about $15,000 in revenue the first night. Each night after the first revenue will be about 75% of the previous night's
revenue.
To the nearest dollar, about how much revenue can the carnival anticipate on its 5th night in town?
Answer: 4746.09375 dollars (just round down to nine cents)
Step-by-step explanation:
The revenue in the 5th night in two will be $4746.093.
What is geometrical progression series?A geometric progression is a sequence in which any element after the first is obtained by multiplying the previous element by a constant which is called a common ratio denoted by r.
For example, the sequence 1, 4, 16, 64,… is a geometric sequence with a common ratio of r = 4.
Revenue in the first night = $15000
Since revenue of new night is 75% of the previous night
So,
2nd night = 15000 × 75/100 = 11250
3rd night = 8437.5
So the given sequence is ;
15000, 11250, 8437.5 ... it is a GP series.
First term(a) = 15000
Common ratio(r) = 11250/15000 = 0.75
The nth term of a GP is given by ;
[tex]a_{n} = ar^{n-1}[/tex]
So for 5th-night n = 5
So,
a₅ = ar⁵⁻¹
a₅ = 15000(0.75)⁴
a₅ = 4746.093
Hence "The revenue in the 5th night in two will be $4746.093".
For more information about the geometrical progression,
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please simplify this ITS URGENT !!
Answer:
[tex]5 {x}^{2} - 4x - 3[/tex]
Step-by-step explanation:
[tex](8 {x}^{2} - 5x + 1) - (3 {x}^{2} - x + 4) \\ = 8 {x}^{2} - 5x + 1 - 3{x}^{2} + x - 4 \\ = 5 {x}^{2} - 4x - 3[/tex]
is 247 divided by 18
who will answer first they will be marked as brainliest
Answer:
13.7
Step-by-step explanation:
Hope this helps
What is x/9=9 i do not know this answer
Answer:
81
Step-by-step explanation:
[tex] \frac{x}{9} = 9[/tex]
is also equal to
[tex]x \div 9 = 9[/tex]
so to find x, we need to remove (÷9) and so in order to do so, we multiply 9 on both sides and thus it is 81.
whats 6/7 divided by 1/2 i need it as a fraction not decimal
Answer:
12/7
Step-by-step explanation:
The value of the expression as a fraction is 12/7.
What is an expression?An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
Example: 2 + 3x + 4y = 7 is an expression.
We have,
6/7 ÷ 1/2
This can be written as,
= (6/7) / (1/2)
= (6 x 2)/7
= 12/7
Thus,
The value is 12/7.
Learn more about expressions here:
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Find 2/3 + -13/15
answers??
Answer:
-1/5
Step-by-step explanation:
[tex]\frac{2}{3}+\frac{-13}{15} \\=\frac{10}{15} +\frac{-13}{15}\\ =\frac{-3}{15} \\=\frac{-1}{5}[/tex]
solve for x
5(x−2)<−3x+6
will name branliest
Answer:
x < 2
Step-by-step explanation:
Given
5(x - 2) < - 3x + 6 ← distribute parenthesis on left side
5x - 10 < - 3x + 6 ( add 3x to both sides )
8x - 10 < 6 ( add 10 to both sides )
8x < 16 ( divide both sides by 8 )
x < 2
Hey there!☺
[tex]Answer:\boxed{x<2}[/tex]
[tex]Explanation:[/tex]
Let's start by simplifying both sides of the inequality:
[tex]5x-10<-3x+6[/tex]
Now add 3x to both sides:
[tex]5x-10+3x<-3x+6+3x\\8x-10<6[/tex]
In our third step, we will add 10 to both sides:
[tex]8x-10+10<6+10\\8x<16[/tex]
In our last step, we will divide both sides by 8:
[tex]\frac{8x}{8}=\frac{16}{8}[/tex]
Simplify 16/8:
[tex]\frac{16}{8}=2\\ x<2[/tex]
x<2 is your answer.
Hope this helps!☺
[tex]\text{-TestedHyperr}[/tex]
Rational numbers are numbers that can be written as the ______ of _____. What are the blanks?
Answer:
rational numbers are numbers that can be written as the ratio of two integers
a number is less than 15 translating inequalities
Greetings from Brasil...
According to the statement of the question, let X be any number. If this number X has to be less than 15, we can write:
X < 15The number is less than 15 and it can be represented by x < 15.
It is given in the question that a number is less than 15.
We have to represent it by translating inequalities.
How will we represent 10 times of x ?
The answer will be 10x.
Let's assume the number is X.
⇒ X < 15 (as per the question)
< symbolic is for less than i.e., X is less than 15.
X represents an unknown value, i.e., numbers less than 15 are 14, 13, 12,...etc.
Thus , if a number is less than 15 , it can be represented by x < 15.
To learn more about linear equations click here ;
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select the values of x that makes the inequality true. -1.6 > x
Choose 3 answers:
A) -2.3
B) -3
C) 1
D) -0.4
E) -1.7
Answer:
The answers are A, B, E
Step-by-step explanation:
C and D are less but not greater than-1.6
A man bought an item for 5000.00 Naira and sold it at a loss of 25%. How much did he sell it?
Answer:
Pls follow me
I'm new here
PLEASE
Step-by-step explanation:
I'll follow u back..
PROMISE
PLEASE HELP, WILL MARK BRAINLIEST! Solve for y when x = 2. y = 4x +2
The cost of 12 pounds of red grapes and 10 pounds of green grapes is
$37.20. If the green cost $.20 more per pound than the red, how much is
the pound of red grapes?
Answer:
I believe it is $1.60 a pound but i'm not sure.
Step-by-step explanation: