Answer:
44 swimmers
Step-by-step explanation:
Given the data points :
66, 8) (71, 23) (72 16) (75 30) (78 35) (80 24) (82 37) (86 37) (87 42) (90 50)
Temperature X:
66
71
72
75
78
80
82
86
87
90
Number of swimmers Y:
8
23
16
30
35
24
37
37
42
50
Using the online regression calculator :
The regression model obtained is ;
ŷ = 1.5045X - 88.2056
Where
1.5045 = gradient or slope
-88.2056 = intercept
x = independent variable
y = dependent variable
Number of swimmers when temperature = 88
y = 1.5045(88) - 88.2056
y = 44.19
y = 44 (nearest whole number)
Answer:
44 Swimmers
Step-by-step explanation:
I did the test....
One week, Isabella bought two bags of apples and three bags of oranges. The next week, she bought one bag of apples and two bags of oranges. If a represents the cost of each bag of apples and are represents the cost of each bag of oranges, which expression could Isabella used to calculate the difference between the amount she spent each week?
A: 3a-r
B: 3a-r
C: (2a-3r)-(a-2r)
D: (2a+3r)-(a+2r)
Answer:
c
Step-by-step explanation:that is the answer
please help me please
Answer:
11
Step-by-step explanation:
its number 2
Which of the following in the picture is true about the function f(x) = (x-7)^2 + 9
Answer:
A).a. The vertex is in quadrant IV and the graph opens down.
Step-by-step explanation:
what is the inverse of the function
Answer:
f⁻¹(x) = x+2 / 3
Step-by-step explanation:
Given function is:
f(x) = 3x-2
We have to find the inverse of the given function.
Put y = f(x) in given function, we have
y =3x-2
Adding 2 to both sides of the above equation we have
y+2 = 3x-2+2
y+2 = 3x
Dividing by 3 to both sides of the above equation, we have
y+2 / 3 = 3x / 3
y+2 / 3 = x
Put x = f⁻¹(y) in the above equation we have
y+2 / 3 = f⁻¹(y)
Swapping equation we have
f⁻¹(y) = y+2 / 3
Replace y with x we have
f⁻¹(x) = x+2 / 3 which is the answer.
What is the equation of the line that passes through the point (7,−3) and has an undefined slope
Answer:
The equation of the line that passes through the point (7,−3) and has an undefined slope will have the equation: x = 7.
Step-by-step explanation:
As the line has an undefined slope, meaning the line is vertical.
As we know that the vertical line passes through (7, -3), so it can never pass through any x-value other than x = 7, although it can pass through infinite y-values.
so the equation of line will be: x = 7
Therefore, the equation of the line that passes through the point (7,−3) and has an undefined slope will have the equation: x = 7.
Does anyone know how to dilate a rectangle by 1/3
Will mark BRAINLIEST!!!!! if possible!
Answer:
Does this help?
Step-by-step explanation:
The chart shows the elevation of several cities. City Elevation (m) Amsterdam 2 Rotterdam –4 Utrecht 1 Zuidplaspolder –7 Which city in the chart has the lowest elevation? Amsterdam Rotterdam Utrecht Zuidplaspolder
Answer:
The Answer Is -7 Zuidplaspolder
Step-by-step explanation:
Answer:
im sure its 7 no cap
Step-by-step explanation:
What are the similarities and differences that exist between all continuous linear and continuous exponential functions?
Christy earned $41.25 for selling 3 birdhouses at a craft market. The equation y=13.75x can be used to represent this situation. What is the constant of proportionality? Express your answer in decimal form.
There are n nonfiction books and 12 fiction books on a bookshelf. If one of these books is selected at
random, what is the probability of selecting a nonfiction book, in terms of n?
A
n
12
B
n
n +12
С
12
n
D
12
n+12
Answer:
[tex]P=\dfrac{n}{n+12}[/tex]
Step-by-step explanation:
Number of non-fiction books = n
Number of fiction books = 12
We need to find the probability of selecting a nonfiction book, in terms of n.
Total no of books = non-fiction books + fiction books
= n+12
Probability = favourable outcomes/total no of outcomes
Here, favourable outcomes = n
So,
[tex]P=\dfrac{n}{n+12}[/tex]
Hence, the probability of selecting a non-fiction is [tex]\dfrac{n}{n+12}[/tex].
Multiply (3x2 + y2) by (x2 + 2y2)
Answer:
3x^4 + 7x^2y^2 + 2y^4
Step-by-step explanation:
(3x^2 + y^2) (x^2 + 2y^2)
3x^4 + 6x^2y^2 + x^2y^2 + 2y^4
3x^4 + 7x^2y^2 + 2y^4
-TheUnknownScientist
En un día de temporal de lluvia el meteorólogo dijo en las noticias que la probabilidad de que lloviera ese día era del 70%. ¿Qué significa ese dato?
Answer:
Vamos a definir:
100% probabilidad de lluvia = Es seguro que ese día va a llover.
0% probabilidad de lluvia = Es seguro que ese día no va a llover.
Ahora, los valores intermedios admiten una dualidad, es decir, es posible que llueva o que no.
Particularmente en el caso del 70% significa que:
Si tenemos un dado de 10 caras, con los números {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}
Y lo tiráramos, los resultados {1, 2, 3, 4, 5, 6, 7} indicarían que llueve.
Los resultados {8, 9, 10} indicarían que no llueve.
Entonces es mas probable que llueva, pero la probabilidad de que no llueva no es despreciable.
I start with 100 and subtract 3 repeatedly. (100 - 3, 97 - 3, 94 - 3 and so on). How many subtractions would I have to do to get the FIRST single-digit number?
Using an arithmetic sequence, it is found that you would need to do 32 subtractions
In an arithmetic sequence, the difference between consecutive terms is always the same, called common difference d.
The nth term of an arithmetic sequence is given by:
[tex]a_n = a_1 + (n - 1)d[/tex]
In which [tex]a_1[/tex] is the first term.
In this problem:
Starts with 100, which is the first term, hence [tex]a_1 = 100[/tex].Subtracts 3, which is the common difference, hence [tex]d = 3[/tex]Then:
[tex]a_n = a_1 + (n - 1)d[/tex]
[tex]a_n = 100 - 3(n - 1)[/tex]
[tex]a_n = 103 - 3n[/tex]
To get a single-digit number, we need that:
[tex]a_n \leq 9[/tex]
Hence, solving the inequality:
[tex]103 - 3n \leq 9[/tex]
[tex]-3n \leq -94[/tex]
[tex]3n \geq 94[/tex]
[tex]n \geq \frac{94}{3}[/tex]
[tex]n \geq 31.3[/tex]
Rounding up, 32 subtractions need to be done.
A similar problem is given at https://brainly.com/question/23842987
The angle measures of a triangle are shown in the diagram.
Answer:30 is the right answer
Step-by-step explanation:
aziel left to play basketball at 3:30 p.m . he came home at 5:00 p.m . How long was he gone ?plz show ur working out and thank u
Answer:
1hr 30mins
Step-by-step explanation:
if u do
3:30-4:30 its 1 hr
4:40-5:00 is half an hour (30mins)
Help me out please guys
First Answer:
the slope of the line is 2.
following the equation
m = rise/run
The rise is 4 and the run is 2
4/2 = 2
Answer:
m=-2
Step-by-step explanation:
Since the line is sloping down, we know the slope is negative. To find the slope count the number of units up/down and the number of units over. In this case, pick any 2 points the line crosses through and think:
"down 4, over 2".
-4/2
-2
HTH :)
Which of Anne's actions demonstrates her changing sense of self? She is bored with her childish pranks. She wants to stop bickering with her mother She has identified her good side and is trying to let it show. She is interested in developing a friendship with Peter
Answer:
She has identified her good side and is trying to let it show.
Step-by-step explanation:
I did this already so I know it right.
Answer:
She has identified her good side and is trying to let it show.
Step-by-step explanation:
Haha, I just finished this assignment.
What is Elise's number?
Elise says, "If you subtract 13 from my number and multiply the difference by - 7, the result is -182
Answer:
39
Step-by-step explanation:
In words, Elise's statement can be expressed as follows:
(x-13)(-7) = -182
where x is the number. Working it out you get:
x-13 = 26
x=39
Answer:
39
Step-by-step explanation:
let's use 26 as x
26-13=13*-7=-182
-182 /-7= 26
26+13=39
A rectangle has a perimeter of 38+x 38+x centimeters. The rectangle has a length of 3x−2 3x−2 centimeters and a width of x centimeters. What is the length of the rectangle? A. Substitute the dimensions of the rectangle info the perimeter formula P=2w+2l P=2w+2l b. Solve for x. C. Find the length of the rectangle.
Answer:
The length of the rectangle is 6 centimeters
Step-by-step explanation:
The perimeter of a rectangle =
P = 2L + 2W
A rectangle has a perimeter of 38+x centimeters. The rectangle has a length of 3x−2 centimeters and a width of x centimeters.
Hence:
38 + x = 2(3x - 2) + 2(x)
38 + x = 6x - 4 + 2x
Collect like terms
38 + 4 = 6x + 2x - x
42 = 7x
x = 42/7
x = 6 centimeters
The length of the rectangle is 6 centimeters
A Hudson Valley farmer has 26 employees. He pays each employee $410 per week. After paying his workers for one week, the farmer has $126 left in his bank account. How much money did he have to begin with.
Given:
A Hudson Valley farmer has 26 employees.
Salary of each employee = $410 per week.
Remaining amount after one week = $126
To find:
The initial amount of money he begins with.
Solution:
We have,
Amount he pays to one employee in one week = $410
Amount he pays to 26 employee in one week = 26 × $410
= $10660
Let x be the initial amount of money he begins with.
Remaining amount = Initial amount - Amount he pays to 26 employee in one week
[tex]126=x-10660[/tex]
[tex]126+10660=x[/tex]
[tex]10786=x[/tex]
Therefore, the initial amount of money he begins with is $10786.
What is an equation of the line that passes through the point (-2,-6)(−2,−6) and is parallel to the line x+2y=8x+2y=8?
Answer:
y=
2
1
x−7
Step-by-step explanation:
uii
Answer:
y=1/2x-7
I know it because the guy who typed the other answer was a idiot
wage of $40
sales girl is paid a
basic
per week. In addition, she is paid a comission of
56. the
value of goods she sells. How much
commission will she be paid on sales amounting
to
$1525 and what is her gross wage for the week?
are her sales 1525 or this that her pay?
f(1) = 25
(1) =
f(n) = f(n − 1). (-5)
f(3) =
Answer:
f(3)=1
It is correct
Write y = 2x + 8 in standard form.
Answer:
2x - y = -8
:)
I WILL GIVE BRAINLIEST!!!!
Answer:
the top right is 18 and the bottom middle is 5 there are 18 apples in a group that has 10 pears.
Step-by-step explanation:
ratio
Problem 1:
1
Define the variable
1. Trini needs more than 51
cubic feet of soil to top up
his raised garden. Each bag
of soil contains 1.5 cubic
feet. Write and solve an
inequality to find how many
bags of soil Trini needs.
2. Write the inequality
B. Solve the inequality
Interpret the solution
d speaker notes
Answer:
variable or scalar is a storage location paired with an associated symbolic name, which contains some known or unknown quantity of information referred to a
If 5 more than 5 times a number is 20, what is the number?
Answer:
9
Step-by-step explanation:
20 divided by 5 is 4 plus 5 is 9
Help with these 2 pls!
Answer:
2: option four
3: option four
Step-by-step explanation:
they are both option four
Sometimes, people have a pet house mouse. If a mouse could travel at top speed, running 20.25 miles in 2.5 hours, how far could It travel In one hour?
Answer:
8.1 miles
Step-by-step explanation:
You have to divide
A function is defunded by f(x)=x/4. What is f(-8)?
pls help :(