The line of best fit of the student model shows the relationship between variables on a scatter plot
How to determine the equation?The question is incomplete; So, I will make use of a dataset with the following calculation summary from a graphing calculator
Sum of X = 112Sum of Y = 390.45Mean X = 14Mean Y = 48.8063Sum of squares (SSX) = 672Sum of products (SP) = -62.4Slope (a) = -0.1Y-intercept (b) = 50So, the equation of the line of fit is:
[tex]y = -0.1x + 50[/tex]
The slope and the y-interceptIn (a), we have:
Slope (a) = -0.1Y-intercept (b) = 50So:
The slope means that the number of students reduces each year by a factor of 0.1, while the y-intercept means that the initial number of students is 50
The number of students in year 11This means that x = 11.
So, we have:
[tex]y = -0.1*11 + 50[/tex]
[tex]y = 49[/tex]
Hence, the number of students in year 11 is 49
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QUICK whoever gives correct answer will get brainliest please and thank you.
Step-by-step explanation:
d. the light become bri--
Answer:
a i think hope i help
Step-by-step explanation:
Pip, David and Bridget share £60 in a ratio 1:2:2. How much money does each person get?
Pip:
£
David:
£
Bridget:
£
Answer:
12
Step-by-step explanation:
3 person, devide total budget by 5, each person's share would be £12
Write down the next two terms of this pattern :8,18,30,44,......
Answer:
60, 78
Step-by-step explanation:
To find a pattern, try experimenting.
Going from 8 to 18 is + 10
Going from 18 to 30 is + 12
Going from 30 to 44 is + 14
We see that we add 2 more extra than the term before (+10, +12, +14)
So, we just add 2 for the next 2 terms which will be +16 and + 18
which are 44 + 16 = 60
and 60 + 18 = 78
Answer:
im not sure but the pattern im seeing is adding by even numbers i could be wrong but I think the next two numbers are 60, and 78
Step-by-step explanation:
8 + 10 is 18
18+ 12 is 30
30 +14 is 44
so i did
44+16 and got 60
and 60 + 18 is 78.
pls helppp
What is the scale factor of this dilation?
Answer:
B. 1 1/2
Step-by-step explanation:
Pls, choose me as brainliest!
Explanation:
Divide the horizontal sides to get
image/preimage = B'C'/BC = 15/10 = 1.5 = 1 & 1/2
This says that the larger image's side lengths are 1.5 = 1 & 1/2 times that of the corresponding preimage side lengths.
A ball has a diameter of 6 inches. A smaller ball has a radius of 2 inches. What is the approximate difference between the volume of the two balls
The difference between the volumes is 79.55 cubic inches.
What is the difference between the volumes?The volume of a sphere of radius R is:
[tex]V = (4/3)*3.14*R^3[/tex]
Here we have two spheres, the larger has a diameter of 6 inches, so its radius is:
R = 6in/2 = 3in
The smaller ball has a radius of 2 in.
Then the difference between the volumes is:
[tex]V = (4/3)*3.14*( (3in)^3 - (2in)^3) = 79.55 in^3[/tex]
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Please tell the answer
Answer:
18 Answer
Step-by-step explanation:
.: PQ +RQ
= 7+11
= 18
What is 360 divided by 9
The value of the quotient of 360 divided by 9 is 40.
What is division?One type of operation in mathematics is division. We divide the phrases or numbers into the same number of components during this operation.
Given:
A phrase: 360 divided by 9.
To find the quotient:
360 divided by 9;
360 ÷ 9,
Here,
The factors of 360 = 2 x 3 x 3 x 3 x 3 x 5
And the factors of 9 = 3 x 3.
The GCF of 360 and 9 is 9.
So, the quotient will be a whole number.
360/9
= 40
Therefore, the value of the quotient is 40.
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A business owner opens one store in town A. The equation p(x) = 10,000(1.075)' represents the anticipated profit aft-
t years. The business owner opens a store in town B six months later and predicts the profit from that store to increas
at the same rate. Assume that the initial profit from the store in town B is the same as the initial profit from the store ir
town A. At any time after both stores have opened, how does the profit from the store in town B compare with the pro
from the store in town A?
a
O 65%
O 96%
104%
154%
Mark this and retium
Answer:
96%
Step-by-step explanation:
he rigth equation to anticipate the profit after t years is p(t) = 10,000 (1.075)^t
So, given that both
store A and store B follow the same equations but t is different for them, you can right: Store A: pA (t) 10,000 (1.075)^t
Store B: pB(t'): 10,000 (1.075)^t'
=> pA(t) / pB(t') = 1.075^t / 1.075^t'
=> pA(t) / pB(t') = 1.075 ^ (t - t')
And t - t' = 0.5 years
=> pA(t) / pB(t') = 1.075 ^ (0.5) = 1.0368
or pB(t') / pA(t) = 1.075^(-0.5) = 0.964
=> pB(t') ≈ 0.96 * pA(t)
This means that the profit of store B is about 96%of the profit of store A at any time after both stores have opened.
What is the best approximation for the circumstance of a circle with a radius of 18 ft?
Use 3.14 to approximate pi.
A. 21.1 ft
B. 36 ft
C. 56.5 ft
D. 113.04 ft
Answer: 113.04 ft
Step-by-step explanation:
C = 2πrC = 2x18x3.14
C=113.04
Lashonda made $95 for 5 hours of work.
At the same rate, how many hours would she have to work to make $342?
Answer:
I think 18
Step-by-step explanation:
95 divided by 5 is 19 and 342 divided by 19 = 18.
Find the circumference of the circle. You must show all work to get full credit. Don't forget to label your answer. Round to the nearest hundredth.
Answer:
The circumference is 26.38 yards
Step-by-step explanation:
The formula for finding the circumference of a circle is 2π(r). 2 times pi times the radius. We see that the radius is 4.2 yards, so we plug 4.2 into the variable labeled "r"
2 (3.14) (4.2) = 26.376
26.376 rounded to the hundredths place is 26.38
Hola there !
Answer is in attachment ; let me know if you have any doubts
15-7 x 2 x 2 to the 3rd power
Answer:
5832
Step-by-step explanation:
15 - 7 = 8
8 × 2 = 16
16 + 2 = 18
18 × 18 × 18 = 5832
mr castle shares out 56 marbles between emily and asif in the ratio of 7:1 how many does each child get?
Answer:
Emily = 49
Asif = 7
Step-by-step explanation:
Let's take the number of marbles given to asif = x
Then, the marbles got by Emily will be 7 times that of asif 7x
Then,
7x + 1x = 56
8x = 56
x = 56/8
x = 7
So, number of marble asif got = x = 7
And number of marbles Emily got = 7x = 7 * 7 = 49
[RevyBreeze]
i really don tunderstand what is going on forreal ts tripping me out
Answer:
What do you mean why are you tripping out.
Step-by-step explanation:
identify two situations in which a person or business might use probability to make a decision
Answer:
two situations in which a person or business might use probability to make a decision
1. Weather Forecasting
2. Sales Forecasting
explanation
Weather Forecasting : the individual might question themselves about what the weather is gonna look like the day . is it gonna rain ? should I bring an umbrella ? should i take the car to work just incase it starts raining , or should I walk on foot and enjoy the hot sun?
Many retailers use probability to forecast the possibility of selling a specific amount of products on a given day, week, or month. This allows companies to forecast how much stock they will require in the future. A company, for example, may use a forecast model that claims it has a 90% chance of selling at least 100 items on a given day. To avoid running out of items to sell, keep at least 100 (preferably more) on hand at all times.
Two sides of the rectangle differ by 3. 5 cm find the dimension of the rectangle if its perimetre is 67cm
Answer:
Step-by-step explanation:
Two sides of the rectangle differ by 3.5 cm means that one side is 3.5 cm more than the other side.
If width = x cm, then length = x + 3.5
Perimeter = 67 m
2*(length +width) = 67
2*(x + 3.5 + x) = 67
2*(2x + 3.5) = 67
2*2x + 2*3.5 = 67
4x + 7 = 67
4x = 67 - 7
4x = 60
x = 60/4
x = 15 cm
Width = 15 cm
Length = 15 + 3.5
= 18.5 cm
Please help with this question!
Solve the following system of equations.
Answer:
n= -6, a= 5
Step-by-step explanation:
Label the two equations:
a= -2n -7 -----(1)
-3a +n= -21 -----(2)
Substitute (1) into (2):
-3(-2n -7) +n= -21
Expand:
-3(-2n) -3(-7) +n= -21
6n +21 +n= -21
Simplify, minus 21 on both sides:
7n= -21 -21
7n= -42
Divide both sides by 7:
n= -42 ÷7
n= -6
Substitute n= -6 into (1):
a= -2(-6) -7
a= 12 -7
a= 5
HELP ITS MAKING ME DO ANOTHER ONE
Answer:
Since we know that each of the three triplets are the same age we can put next to n, 3.
And given that another child is 14 years old we can put that next to the "+" sign.
In total, it would equal 32, so put the 32 after the equal sign.
It should look like this:
3n + 14 = 32
But now they want us to solve for the triplet's ages, so we just solve for n;
3n + 14 = 32
-14 -14
3n = 18
/3 /3
n = 6, the triplet's ages are 6 years old each.
can someone help? just answer this
Answer:
D) 2•10^9
Hopes this helps wish you well
how many lines of symmetry does this shape have ???
Answer:
1 is the answer. Have a great day!!!
Answer:
1
Step-by-step explanation:
You can only split it diagonally without unevenly splitting it.
The pair of triangles that are congruent by the ASA criterion i:
The pair of triangles that are congruent by the SAS criterion is
Step-by-step explanation:
The pair of triangles that are congruent by the SAS criterion is Δ BAC and ΔRQP.hope this helps
Solve for x. Round to the nearest hundredth.
17
18°
х X
what trigonometric function would you use to find x?
O Cosine
Sine
Tangent
O Secant
O Cosecant
Answer:
5
Step-by-step explanation:
like i dont know probably 5 its kinda weird. it definitely has to be 5
find the mode of 8,6,7,9,7,0,2,3,5,7,8,9,6,9
Answer:
7 and 9
Step-by-step explanation:
both 7 and 9 occur 3 times in this sequence of numerals, thus resulting in a bimodal solution
In Martha's pet store 3/6 of the mice were white, 2/6 of the mice were black, and 1/6 of the mice were brown. What fraction of the mice were black or white?
Add black and white together:
3/6 + 2/6 = 5/6
Answer: 5/6
help me solve the proportion please :(
Jennifer has 78 feet of fencing to make a rectangular vegetable garden. Which dimensions will give Jennifer
the garden with greatest area? The diagrams are not to scale.
Answer:
a
Step-by-step explanation:
Let's go through each answer choice.
The formula for Area of a rectangle is [tex]A=l*w[/tex]
a.
[tex]A=l*w=19*20=380\ ft^2[/tex]
b.
[tex]A=l*w=17*22=374\ ft^2[/tex]
c.
[tex]A=l*w=21*18=378\ ft^2[/tex]
d.
[tex]A=l*w=23*16=368\ ft^2[/tex]
Upon evaluation of each answer choice, we can conclude:
[tex]380 > 378 > 374 > 368[/tex]
Therefore the answer is a.
Xavier can work no more than 40 hours in a week. He has already worked 24 hours this week. What is the maximum number of 8-hour days Xavier can work for the rest of the week? 2 3 4 5
Answer:
The answer is A. He can only work 2 more days with 8 hours a day
Step-by-step explanation:
Answer:
2
Step-by-step explanation:
Please help me please please please help
(07. 01)How many solutions can be found for the equation 4x = 4x? Zero One Two Infinitely many.
The given equation have infinitely solution.
we have given that equation 4x=4x
What are the condition for solution no solution one solution infinite solution?
Zero solution:-No solution would mean that there is no answer to the equation
One solution:-There is only one value for the variable that makes the equation true.
Two solution:-A quadratic equation with real or complex coefficients has two solutions, called roots. These two solutions may or may not be distinct, and they may or may not be real.
infinitely solution:- Infinite solutions would mean that any value for the variable would make the equation true.(x=x)
Given equation have infinitely many solution because there are so many different ways that can be found.
Therefore we have the given equation have infinitely solution
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