The correlation coefficient for the data in the given table is 0.28.
What is the correlation coefficient?Correlation coefficients are used to measure how strong a relationship is between two variables.
Number of flowers X Total cost(in$) Y
8 12
12 40
6 15
20 20
∑X=46 ∑X=87
The image of the correlation coefficient formula has been attached.
X mean = 11.5
Y mean = 21.75
Using the attached formula
Correlation coefficient r = 0.28
Therefore, the correlation coefficient for the data in the given table is 0.28.
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good evening! Can someone please answer this, ill give you brainliest and your earning 50 points. Would be very appreciated.
Answer: B. T(n) = 0.2(2)^n
Step-by-step explanation:
you start with the original thickness which is 0.2 then you would double that( times 2) for every fold (n) which would be 2^n.
this makes the equation 0.2(2)^n
Part A: Write an equivalent system of equations.
Part B: Justify why the system you wrote is equivalent.
Answer:
2/4, 4/8, 8/16, 16/32
Step-by-step explanation:
2/4
2x2/4x2 = 4/8
4x2/8x2 = 8/16
8x2/16x2 = 16/32
if x=10 what is the value of y in the equation 3x+5y=60
Given :-
x = 103x + 5y = 60[tex] \\ \\ [/tex]
To find :-
value of y[tex] \\ \\ [/tex]
Solution :-
[tex] \\ [/tex]
[tex] \looparrowright \sf3x + 5y = 60[/tex]
Put value of x in the equation!
[tex] \\ [/tex]
[tex] \looparrowright \sf3(10)+ 5y = 60[/tex]
[tex] \\ [/tex]
[tex] \looparrowright \sf3 \times 10+ 5y = 60[/tex]
[tex] \\ [/tex]
[tex] \looparrowright \sf30+ 5y = 60[/tex]
[tex] \\ [/tex]
[tex] \looparrowright \sf5(6 + y) = 60[/tex]
[tex] \\ [/tex]
[tex] \looparrowright \sf(6 + y) = 60 \div 5[/tex]
[tex] \\ [/tex]
[tex] \looparrowright \sf6 + y= \dfrac{60}{5} [/tex]
[tex] \\ [/tex]
[tex] \looparrowright \sf6 + y=\cancel \dfrac{60}{5} [/tex]
[tex] \\ [/tex]
[tex] \looparrowright \sf6 + y= \dfrac{12}{1} [/tex]
[tex] \\ [/tex]
[tex] \looparrowright \sf6 + y=12[/tex]
[tex] \\ [/tex]
[tex] \looparrowright \sf y=12 - 6[/tex]
[tex] \\ [/tex]
[tex] \looparrowright \bf y=6[/tex]
[tex] \\ [/tex]
Verification:-
[tex] \\ [/tex]
[tex] \looparrowright \sf3x + 5y = 60[/tex]
Put value of x and y.
[tex] \\ [/tex]
[tex] \looparrowright \sf3(10)+ 5(6) = 60[/tex]
[tex] \\ [/tex]
[tex] \looparrowright \sf3 \times 10+ 5(6) = 60[/tex]
[tex] \\ [/tex]
[tex] \looparrowright \sf30+ 5(6) = 60[/tex]
[tex] \\ [/tex]
[tex] \looparrowright \sf30+ 5 \times 6= 60[/tex]
[tex] \\ [/tex]
[tex] \looparrowright \sf30+ 30= 60[/tex]
[tex] \\ [/tex]
[tex] \looparrowright \bf60= 60[/tex]
LHS = RHS
HENCE VERIFIED!
HELP PLSSS ASAP!!!!!!
Answer: p=5+3/2 or p=5-3/2
Step-by-step explanation:
[tex]\qquad\qquad\huge\underline{{\sf Answer}}♨[/tex]
Let's solve ~
[tex]\qquad \sf \dashrightarrow \: {p}^{2} - 10p + 7 = 0[/tex]
Now, let's use Quadratic formula :
[tex]\qquad \sf \dashrightarrow \:x = \dfrac{ - b \pm \sqrt{ {b}^{2} - 4ac } }{2a} [/tex]
[tex]\qquad \sf \dashrightarrow \:x = \dfrac{ - ( - 10) \pm \sqrt{ {( - 10)}^{2} - 4(1 \times 7) } }{2 \times 1} [/tex]
[tex]\qquad \sf \dashrightarrow \:x = \dfrac{ 10 \pm \sqrt{ 100- 28 } }{2 } [/tex]
[tex]\qquad \sf \dashrightarrow \:x = \dfrac{ 10 \pm \sqrt{ 72 } }{2 } [/tex]
[tex]\qquad \sf \dashrightarrow \:x = \dfrac{ 10 \pm6 \sqrt{ 2 } }{2 } [/tex]
[tex]\qquad \sf \dashrightarrow \:x = \dfrac{ 2(5 \pm3 \sqrt{ 2 }) }{2 } [/tex]
[tex]\qquad \sf \dashrightarrow \:x = (5 \pm3 \sqrt{ 2 }) [/tex]
So, the required roots are :
[tex]\qquad \sf \dashrightarrow \:x = 5 + 3 \sqrt{ 2 } [/tex]
and
[tex]\qquad \sf \dashrightarrow \:x = 5 - 3 \sqrt{2} [/tex]
Tell weather the angles are adjacent or vertical then find the value of X
Answer:
The angles are adjacent (next to each other). Because they are adjacent, the angles equal 180 when added together. Therefore, X = 180-34. X = 146.
Hope this helps, and good luck with math! Have a great day/night :D
There are 52 weeks in a year. And mayra 40 hours a week.
What is the hourly rate necessary to earn $68,120 a year ? How much is her weekly salary?
Maura is planning to buy a new car, she wants to save $4000 for the down payment. How many weeks does she need to work before she gets that amount?
Mayra weekly salary is $1310 and she would need 4 weeks salary in order to afford a $4000 down payment on that car.
Data;
Total number of weeks = 52Weekly hours = 40Yearly target = $68,120Weekly SalaryTo calculate her weekly salary, let's divide her annual target by 52 week which the number of weeks present in a year.
Her weekly salary will be
[tex]x = \frac{68120}{52} \\x = 1310[/tex]
Her weekly salary is $1310
To be able to afford a $4000 down payment, she has to work at least 4 weeks.
[tex]\frac{4000}{1310} = 3.05[/tex]
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PLEASE HELP ME BY TODAY ((UNIT RATE)) I WILL GIVE BRAINLIEST, WORTH 20 POINTS
Answer:
80
Step-by-step explanation:
48 ÷ 6 = 8 per hour
8 x 10 hours = 80 dogs
Answer: Steve can train 80 dogs.
Step-by-step explanation:
How many dogs he can train divided by how many hours is: 48/6 = 8.
He is able to train 8 dogs per hour. So: 8 x 10 = 80.
16 inches to 5 feet as a fraction in simplest form.
Answer:
1 feet = 12 inches
therefore ,
5 feet = 5 × 12 = 60 inches
Now ,
16 inches to 60 inches ,
[tex] \frac{16}{60} \div \frac{4}{4} = \frac{4}{15} \\ [/tex]
hope helpful~
Answer: 6 1/3
Step-by-step explanation: 16 inches = 1 foot and 4 inches + 5 feet = 6' 4" 6 4/12 simplify = 6 1/3
What Did the Boy Candy Say to the Girl Candy
to each
to con
Casang
55
8
95 am
5.
2
huse
12
7 om
25
Find the measured the third angle in each triangle
115
56
TOS
3
127
20
54
51
73°
N 30
Seº
© <
Se
32
To anges of a triangle have equal measures. The third angle
measures 120° what is the measure of each of the equal angles?
6 2
12 3 3 5 1 2 0 5
12 3 8 12
D-34
MODLE SCHOOLS PIZZAZ BOOKS
comate Publications
The measure of the other two angles is 30 degrees.
What are the types of triangles?
An acute scalene triangle is a triangle in which all the angles are less than 90 degrees and all the three side lengths are not equal. A right scalene triangle is a triangle that has an angle that measure 90 degrees and all the three side lengths are not equal.
An obtuse scalene triangle is a triangle in which one of its angle is greater than 90 degrees but less than 180 degrees and all the three side lengths are not equal. A right isosceles triangle is a triangle that has an angle that measure 90 degrees and two sides have an equal length.
An acute equilateral triangle s a triangle in which all the angles are less than 90 degrees and all the three side lengths are of equal lengths. An obtuse isosceles triangle is a triangle in which one of its angle is greater than 90 degrees but less than 180 degrees and two of the side lengths are of equal lengths.
What is the measure of the angle in a triangle?The sum of angles in a triangle measure 180 degrees. If given two measure of angles, in order to determine the third angle, add the two given angles and subtract from 180 degrees.
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(m+n)^2-(m+2)+mn*(n+2)+2n(n+2) pleae factor this
Answer:
mn^2+3n^2+4mn+4n+m^2-m-2
need the work by the way
Answer:
49º
Step-by-step explanation:
The total amount of º in a triangle is 180
7 10
90. 180
+41. -131
131. 049
Answer:
49°
Step-by-step explanation:
x+41°+90°=180°[ being sum of angle of triangle is 180°]
or, x+131°=180°
or, x=180°-131°
or, x= 49°
Answer: 49°
_______________________________________
[Note: This is right angled triangle so that one angle is 90° because there is a sign given to indicate it is 90°]
??????????????????????????
Answer: 27 in^2.
Step-by-step explanation: To simplify this problem, we can split the figure into two rectangles. We can split the figure into a 3x3 square and a 2x9 rectangle. We can calculate these individual areas and then add them up to find the area of the entire figure. 3*3 = 9 and 2*9 = 18. 9 + 18 = 27, so 27 in^2.
If p = 10 - 3y, work out p when =-10
Hello.
Plug in the value of p:
[tex]\mathrm{-10=10-3y}[/tex]
Now, all we have to do is solve the equation for y.
First, let's add 10 to both sides:
[tex]\mathrm{-10+10=10+10-3y}[/tex]
[tex]\mathrm{0=20-3y}[/tex]
Now, add 3y to both sides:
[tex]\mathrm{3y=20}[/tex]
Divide both sides by 3:
[tex]\Large\boxed{y=\frac{20}{3} }[/tex]
I hope it helps.
Have a nice day.
[tex]\boxed{imperturbability}[/tex]
WILL GIVE BRAINLIEST IF CORRECT
Simplify 2s + 4 + (-6s) + 10
-4s + 14
4s + 14
10s
18s
Answer:
−
2
(
2
−
7
)
Step-by-step explanation:
Let's first write out
2s+4+(-6s)+10
now simplify
-4s+14
again
now correct
game have total?
3) At a bake sale there were 52 items sold total. If 24 of the items sold were cookies and the rest
were brownies what is the ratio of brownies sold to cookies sold?
Answer:
the ratio is easy to find if you subtract 52 to 24 which is 28 so the ratio is 28 to 24
please help ‼️‼️
i’ll give the brainliest thing if it’s correct
A rhombus where the left side of the horizontal diagonal has length 2 meters and the right side of the horizontal diagonal has length 2 meters. The top of the vertical diagonal has length 5.5 meters and the bottom of the vertical diagonal has length 5.5 meters.
What is the area of the rhombus?
11 m2
15 m2
22 m2
44 m2
PLEASE HURRY
Answer:
15 m2 is the answer
Step-by-step explanation:
The side of a rhombus is 15 m2. If the length of one diagonal of the rhombus is 8 cm, then find length of the other diagonal. The side of a rhombus is 15 m2. If the length of one diagonal of the rhombus is 8 cm, then find length of the other diagonal. so, the answer is 15 m2
Answer: 22 m2
Step-by-step explanation:
The sum of two numbers is 45. One number is
8 more than the other one. Find the numbers.
Answer:
6and 7,8,9,10 CORRECT ME IF I'M WRONG
-5=y-7 divided by 9 please help I really need this
Step-by-step explanation:
Our equation;
[tex]-5=\frac{y-7}{9}[/tex]
Multiply each side by 9 to remove the fraction;
[tex]-45=y-7[/tex]
Add 7 to each side;
[tex]\boxed{-38=y}[/tex]
Law of sines: StartFraction sine (uppercase A) Over a EndFraction = StartFraction sine (uppercase B) Over b EndFraction = StartFraction sine (uppercase C) Over c EndFraction In ΔABC, c = 5. 4, a = 3. 3, and measure of angle A = 20 degrees. What are the possible approximate lengths of b? Use the law of sines to find the answer. 2. 0 units and 4. 6 units 2. 1 units and 8. 7 units 2. 3 units and 7. 8 units 2. 6 units and 6. 6 units.
The length 2.3 and 7.8 units
We have given that ΔABC, c = 5. 4, a = 3. 3, and measure of angle A = 20 degrees.
What is the formula for low of cosine?The Law of Cosines, which tells us
[tex]a^{2}=b^{2} +c^{2} -2bccosA[/tex]
giving us a quadratic equation for b we can solve. But let's do it with the Law of Sines as asked.
[tex]\frac{sinA}{a}=\frac{sinB}{b}=\frac{sinC}{c}[/tex]
We have c,a,A so the Law of Sines gives us sin C
[tex]sinC=\frac{csina}{a} =\frac{5.4sin20}{3.3} =0.5597[/tex]
There are two possible triangle angles with this sine, supplementary angles, one acute, one obtuse
[tex]C_{a}=arcsin(0.5597)=34.033^{0}[/tex]
[tex]C_{0}=180-C_{a} =145.96^0[/tex]
Both of these make a valid triangle with A=20°. They give respective B's:
[tex]B_{a}=180-A-C_{a} =125.96^0[/tex]
[tex]B_{0}=180-C_{0} =14.033^0[/tex]
So we get two possibilities for b:
[tex]b=\frac{asinB}{sinA} \\\\b_{a} =\frac{3.3sin125.96}{sin 20} \\\\b_{a}=7.8\\\\ b_0=2.3[/tex]
2.3 units and 7.8 units
Therefore we get the length 2.3 and 7.8 units
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Answer: 2.3 units and 7.8 units
Let's check it with the Law of Cosines:
There's a shortcut for the quadratic formula when the middle term is 'even.'
Looks good.
A person invests $350 in an account that earns 3.65% annual interest compounded
semiannually. Find when the value of the investment reaches $5675.
M = C(1+r)^t
5675 = 350(1+0.0365/2)^t
5675=350×1.01825^t
t = 154.04
Answer:
Approximately 77 years
Step-by-step explanation:
V(t)=P(1+r/n)^nt
5675=350(1+.0365/2)^2t
16.214=1.01825^2t
log16.214=log1.01825^2t
log16.214=2t(log1.01825)
log16.214/2log1.01825=t
77=t
What is the surface area of this prism? 14ft 10ft 10ft 8ft 6ft 6ft 4ft
Answer:
The formula for the surface area of a prism is obtained by taking the sum of (twice the base area) and (the lateral surface area of the prism). The surface area of a prism is given as S = (2 × Base Area) + (Base perimeter × height) where "S" is the surface area of the prism.
Step-by-step explanation:
i dont know the base and height because you dont have a picture provided so you can use this as help
its worth helping xd
Answer:
[tex]c)\ 2\frac{4}{10}[/tex]
Step-by-step explanation:
[tex]5\frac{1}{5}-2\frac{8}{10} \\\\5\frac{2}{10}-2\frac{8}{10} \\\\\frac{52}{10}-\frac{28}{10} \\\\ \frac{24}{10} \\\\2\frac{4}{10}[/tex]
Hope this helps!
Answer:
5 1/5 - 2 8/10
26/5 - 28/10=24/10=2 4/10
Ethan is observing an amusement park ride where the riders go around in a counterclockwise circular motion. The
carts take 2 seconds to complete a full rotation. The center of the ride is 24 feet above the ground as shown in the
diagram, and the cart Ethan is observing is labeled X
A sinusoidal equation can be used to describe the height because the height depends on a periodic motion, and the equation can be written as:
h(t) = 13ft*sin(pi*t) + 24ft
Why a sinusoidal equation can be used?Remember that the sine function has a periodicity, such that:
sin(x + 2pi) = sin(x).
So, for a circle where if you do a complete rotation you end in the initial place, so there can be a relation between the height and a sinusoidal equation.
Notice that the initial position is 24ft above the ground, so we can write this, at the moment, as:
h(x) = Asin(n*t) + 24ft
A is the amplitude, it defines the maximum height and minimum height, both depend on the radius (the maximum height is 24ft plus the radius, the minimum height is 24ft minus the radius) then we write:
h(t) = 13ft*sin(kt) + 24ft
k depends on how much time takes to do a full rotation. We know that the sine function does a "complete cycle" in 2pi, while the wheel does a full rotation in 2 seconds, then we have that:
k*2 = 2pi
k = (2pi)/2s = pi
Then the sinusoidal equation that represents the height is:
h(t) = 13ft*sin(pi*t) + 24ft
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Which of the following graphs shows a direct variation (proportion)?
Answer:
a, d
Step-by-step explanation:
A direct variation graph will just have points going in a straight line.
The only graphs with a straight line are (a) and (d).
Toby's toy insects are shown at the right. Measure each insect to the nearest fourth inch record each measurement
Measurements are the metric units of an item, quantity or object
The length of the beetle is 0.5 inchThe length of the ladybug is 0.25 inchThe length of the butterfly is 1 inchHow to measure the insectsBeetles
The beetle covers two marks in a total length of 1 inch of 4 marks
So, the measurement of the beetle is:
[tex]Beetle = \frac{2\ inch}{4}[/tex]
Evaluate the quotient
[tex]Beetle = 0.5\ inch[/tex]
Ladybugs
The ladybug covers one mark in a total length of 1 inch of 4 marks
So, the measurement of the ladybug is:
[tex]Ladybug = \frac{1\ inch}{4}[/tex]
Evaluate the quotient
[tex]Ladybug = 0.25\ inch[/tex]
Butterfly
The butterfly covers four marks in a total length of 1 inch of 4 marks
So, the measurement of the butterfly is:
[tex]Butterfly= \frac{4\ inch}{4}[/tex]
Evaluate the quotient
[tex]Butterfly =1\ inch[/tex]
Hence, the length of the butterfly is 1 inch
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Triangle ABC has angle measures as shown below. Using the information in the diagram, and the value of x that you calculated in Question 2, find the measure of Angle C.
In your answer, give the measure of Angle C and explain how you calculated it.
Answer:
x=29
Step-by-step explanation:
180-87=93
93=3x+6
-6 -6
--------------
93=3x
/3 /3
-------------
29=x
x=29
*all angles in a triangle add up to 180. So, 35+52=93. 180-93=87.
C=87
The present ages of father and son are 40 years and 5 years respectively. If they both live on till the son becomes as the father is now, what will be the age of father?
Answer:
75
Step-by-step explanation:
40 - 5 = 35 years till the son will be 40, his fathers age
40+35 = 75, the dad's age 35 years in the future when the son is 40
How to calculate intrest
Answer:
You can calculate Interest on your loans and investments by using the following formula for calculating simple interest: Simple Interest= P x R x T ÷ 100, where P = Principal, R = Rate of Interest and T = Time Period of the Loan/Deposit in years.
Formula: Simple Interest=P×r×t where: P=Principal amount; r=Annual interest rate; t=...
Principal Amount: Principal Amount remains constant on Simple Interest
Meaning: Simple Interest is calculated on the Principal Amount for the entire tenure
Calculation: It is easy to calculate Simple Interest
Answer:
To calculate simple interest, you can use a specific formula:
I (interest) = p (principal) x r (rate) x t (time)
Important: Rate is always a decimal, and time must be a compatible unit that matches with the rate (months, years, etc.).
Find the value of x.
Answer: 30
Step-by-step explanation: