Answer:
24.23 ; 13.47 ; 0.782 ; p value < 0.00001 ;7.45
Step-by-step explanation:
Given that :
ΣX = 3,416, ΣY = 1,899, SDX = 8.84, SDY = 4.70, ΣZXZY = 109.416
Sample size, N = 141
Mean of X:
£X / N = 3416 / 141 = 24.23
Mean of Y:
£Y / N = 1899 / 141 = 13.47
B.) Correlation between the 2 variables :
£ZXZY / N - 1
= 109.416 / 140
= 0.782
C.)
Level of significance and p value :
T = [Rsqrt(n-2)] ÷ sqrt(1 - R²)
T = [0.782 * sqrt(139)] ÷ sqrt(1-0.782^2)
T = 14.79
P value from Tscore calculator
Df = 141 - 2 = 139 ; α = 0.05
Pvalue = 0.00001
Pvalue < α ; Hence, a significant positive relationship exists.
To obtain regression model :
Slope = £ZXZY / SDX²
m = 109.416 / 8.84^2 = 1. 4
yintercept = meanY - slope*x
yintercept = 13.47 - 1.4*24.3
yintercept = - 20.55
Equation in slope intercept form:
y = mx + c
y = 1.4x - 20.55
For x = 20
y = 1.4(20) - 20.55
y = 7.45
Si se tienen 150 rosas y 90 margaritas, ¿de qué tamaño se deberá hacer arreglos de modo que no sobren flores?
What is the value of the constant in the equation that relates the hey width of the rectangle
Answer: 2
Step-by-step explanation:
as H=20 and W=10
So H=constant.(W)
H=2(10)
H=20
So constant is 2
The original price of a pair of shoes is $29.90 and there is a markdown of 10% for a
Black Friday sale. What is the amount of money being taken off the original price?
Answer:
2.99 is the amount that is being taken off and the final price is $26.91
Step-by-step explanation:
Find the measure of the missing angle.
pls help I will give brainliest and 50 points!
Answer:I think it is 82
Step-by-step explanation: because a straight line is 180° and 180-98=82
I will give out branlyest
Answer:
The only one that makes sense is A.
Hope this helps.
Step-by-step explanation:
V=LWH
Answer:
A
Step-by-step explanation:
I just took the quiz
The moon is about 382,500 km away from earth. This distance actually varies by about 22,500 km. What are the maximum and minimum distances to the moon?
Answer:
225,623 miles (363,104 kilometers).
Step-by-step explanation:
In a right triangle, the measures of the legs are x and x + 14 and the measure of the hypotenuse is x + 16. Find the measure of x.
Answer:
[tex]x=10[/tex]
Step-by-step explanation:
We can use the Pythagorean Theorem:
[tex]a^2+b^2=c^2[/tex]
The two legs are x and (x + 14) and the hypotenuse is (x + 16). Therefore:
[tex](x)^2+(x+14)^2=(x+16)^2[/tex]
Expand:
[tex]\displaystyle x^2+(x^2+28x+196)=x^2+32x+256[/tex]
Combine like terms:
[tex]2x^2+28x+196=x^2+32x+256[/tex]
Subtract the right from the left:
[tex](2x^2+28x+196)-(x^2+32x+256)=0[/tex]
Subtract:
[tex]x^2-4x-60=0[/tex]
Factor:
[tex](x-10)(x+4)=0[/tex]
Zero Product Property:
[tex]x-10=0\text{ or } x+4=0[/tex]
Solve:
[tex]\displaystyle x = 10 \text{ or } x = -4[/tex]
The x cannot be negative since a side cannot measure -4. So, our only answer is:
[tex]x=10[/tex]
So, the legs are 10 and 24 with the hypotenuse being 26.
(SAT Prep) Find the value of x.
Answer:
58
Step-by-step explanation:
I think
Can someone answer this because this one is confusing and I need help.
Answers
A.280 cubic inches
B.1,800 cubic inches
C.180 cubic inches
D.600 cubic inches
your answer would be 180 cubic inches which is option C
what is the answer to this question
1/2 x -7=1/3(x-12)
Answer:
= 1 8 hope this helps!!! :)
Step-by-step explanation:
1 2 ⋅ −7 = 1 3 ( − 1 2 )
1 2 − 7 = 1 3 −1 2 )
1 2 − 7 = 1 3 − 1 2 )
Multiply by 1
Combine multiplied terms into a single fraction
Multiply by 1
Add to both sides of the equation
Answer:
x = 3/2 = 1 1/2 = 1.5
Step-by-step explanation:
1/2 x -7=1/3(x-12)
Multiply 1/2 and -7 to get -7/2
-7/2 = 1/3(x-12)
Fraction -7/2 can be rewritten as -7/2 by extracting the negative sign.
- 7/2 = 1/3(x-12)
Use the distributive property to multiply 1/3 by x−12.
-7/2 = 1/3x + 1/3(-12)
Multiply 1/3 and −12 to get -12/3
-7/2 = 1/3x + -12/3
Divide −12 by 3 to get −4.
-7/2 = 1/3x + 4
Swap sides so that all variable terms are on the left hand side.
1/3x -4 = -7/2
Add 4 to both sides.
1/3x = -7/2 + 4
Convert 4 to fraction 8/2
1/3x = -7/2+8/2
Since -7/2 and 8/2 have the same denominator, add them by adding their numerators.
1/3x = -7+8/2
Add −7 and 8 to get 1.
1/3x = 1/2
Multiply both sides by 3, the reciprocal of 1/3
x = 1/2 x 3
Multiply 1/2 and 3 to get 3/2
x = 3/2
Express 29/100 as a decimal
Answer:
Step-by-step explanation:
Since there are 2 digits in 29, the very last digit is the "100th" decimal place. So we can just say that . 29 is the same as 29/10
Answer:
0.29 = 29/100
Explanation:
Find the equation of a line parallel to the equation y = 5x + 7 through the point (2,7).
Answer:
y = 5x + 7
Step-by-step explanation:
1. Substitue the numbers into their spots.
7 = 5(2)+b
2. Find b by simplifying
7 = 10 + b
-3 = b
3. Substitute it back in since parallel lines have the same slope.
a car travels 170 miles in 3 hours at this rate how many miles will the car travel in 1/2 hours
A model of the Pythagorean Theorem is shown.
169 square units. 144 square units. 25 square units.
Based on the information in the model, which equation represents the Pythagorean theorem?
Answer:
Step-by-step explanation:
The probability that Chloe acts hungry at 7pm given that she has already eaten dinner is 0.5. The probability that Chloe acts hungry at 7pm given that she has not had dinner is 0.99. Assume that there is probability 0.9 that Chloe has eaten dinner by 7pm on a given day. a) (1 pt) If Chloe is acting hungry at 7pm, find the probability that she has not had dinner yet. b) (1 pt) If Chloe is not acting hungry at 7pm, find the probability that she has already had dinner.
Answer:
a) P( [tex]Y^{C}[/tex] | X ) = 0.180
b) P(Y | [tex]X^{C}[/tex] ) = 0.998
Step-by-step explanation:
Let
P(X) - Probability that he acts hungry
P(Y) - Probability that he had ate dinner,
Given,
P(X | Y) = 0.5
P(X | [tex]Y^{C}[/tex] ) = 0.99
P(Y) = 0.9
a.)
P( [tex]Y^{C}[/tex] | X ) = [tex]\frac{P( X | Y^{C} ). P(Y^{C} ) }{P( X | Y^{C} ). P(Y^{C} ) + P( X | Y ) . P (Y) }[/tex]
= [tex]\frac{(0.99)(0.1)}{(0.99)(0.1) + (0.5)(0.9)} = \frac{0.099}{0.549}[/tex] = 0.180
⇒P( [tex]Y^{C}[/tex] | X ) = 0.180
b.)
P(Y | [tex]X^{C}[/tex] ) = [tex]\frac{(1 - P(X | Y ) ) . P(Y)}{P( X^{C} ) } = \frac{(1 - P(X | Y ) ) . P(Y)}{ 1 - P( X ) }[/tex]
= [tex]\frac{(1 - 0.5)(0.9)}{1 - [(0.99)(0.1) + (0.5)(0.9) ]} = \frac{(0.5)(0.9)}{1 - [(0.099) + (0.45) ]} = \frac{0.45}{1 - [0.540]} = \frac{0.45}{0.451}[/tex] = 0.998
⇒P(Y | [tex]X^{C}[/tex] ) = 0.998
Please help me ! I’ll give anyone a 5 star rating for the correct answers.
Answer:
A)Josh
B)Mila
C) Amir
Determine the amount of each unknown
Cost of the item $300
Sales tax _______
Amount of tax ________
Total cost $360
Answer:
Sales tax:20%
Amount of tax:$60
HELP!!!ITS DUE IN AN HOUR
A salesperson at a jewelry store earns 5% commission each week. Last week, Heidi sold $530
worth of jewelry. How much did she make in commission? How much did the jewelry store make
from her sales?
Heidi earned in commission.
Answer:
26.5
Step-by-step explanation:
dont worry I'm actually the salesperson at the jewlery store
Step-by-step explanation:
it is not confrmed answer
commission:106%
Which of the following best describes a triangle with one right angle and two congruent sides?
A right scalene triangle
B. acute scalene triangle
C. right isosceles triangle
D acute isosceles triangle
Answer:
C
Step-by-step explanation:
A is impossible. You cannot have both a right triangle and in the same triangle have an angle in it that is over 90 (that's the meaning of scalene)
B is sort of true, but only sort of. All scalene triangles have an angle over 90 and 2 acute angles.
C this is the answer to the question. It has 1 right angle and 2 equal sides. The two equal sides make it isosceles and the right angle is given.
D an acute triangle has three angles under 90 that add to 180. Not the right description.
A triangle with one right angle and two congruent sides is described as a "right isosceles triangle." (Option C)
Let's break down the terms:
1. Right Angle: A right angle is an angle that measures exactly 90 degrees.
2. Isosceles Triangle: An isosceles triangle is a triangle with at least two sides of equal length (congruent sides).
3. Right Isosceles Triangle: A right isosceles triangle is a special type of isosceles triangle where one of the angles is a right angle (90 degrees) and the other two angles are equal, each measuring 45 degrees.
In a right isosceles triangle, the two congruent sides are the legs of the right triangle, and the third side (opposite the right angle) is called the hypotenuse.
So, among the given options, the best description for a triangle with one right angle and two congruent sides is a "right isosceles triangle" (Option C).
To know more about right isosceles triangle, refer here:
https://brainly.com/question/30966657
#SPJ6
What is the zero of the function ?
Answer:
The zero of a function is any replacement for the variable that will produce an answer of zero. Graphically, the real zero of a function is where the graph of the function crosses the x‐axis; that is, the real zero of a function is the x‐intercept(s) of the graph of the function.
Step-by-step explanation:
what is 2x + 5 (y-1) when x=8 and y=5
Step-by-step explanation:
2x + 5 (y-1)
16+20
=36
hope it helps you
solving the systems of linear equations by substitution.
x+2y=6
5x+2y=18
Mahir ' in ağırlığının feride' nin ağırlağına oranı 9/4 'tür.
Mahir' in ağırlığı 81 kg olduğuna göre feridenin ağırlığı kaç kg'dir? (acil soru)
write an expression y+3y-2y=
Answer:
3y=2y
Step-by-step explanation:
Im not sure if this is the answer your looking for but I hope this helped. I tried tho lol :)
Jerry plans to begin saving money for a trip by putting $1 in a savings account the first month and then adding enough to double the amount in the account each following month. 1 I a. After he finishes contributing to the account, he will withdraw $500 to make a down payment on the trip. Create a function to show how much money will be in the account if he finishes contributing to the account after t months.
Answer:
A=2*(t-1)-500
Step-by-step explanation:
I did it on study island.
Function representing the amount of money as per given condition in the account after [tex]t[/tex] months is equals to [tex]A= 2^{t-1} -500[/tex].
What is function?" Function is defined as relation between variables is such that for each input value there exist one and only one output."
According to the question,
Given,
Amount in the account
Frist month [tex]= \$1[/tex]
[tex]= 2^{1-1}[/tex]
As per given condition,
second month [tex]= \$2[/tex]
[tex]= 2^{2-1}[/tex]
Third month [tex]= \$4[/tex]
[tex]= 2^{3-1}[/tex]
.........
Amount in the account in [tex]'t'[/tex] months [tex]= 2^{t-1}[/tex]
Jerry withdraw [tex]\$500[/tex] to make a down payment on the trip.
[tex]'A'[/tex] represents the total amount left in the account
Required function as per given condition,
[tex]A = 2^{t-1} -500[/tex]
Hence, function representing the amount of money as per given condition in the account after [tex]t[/tex] months is equals to [tex]A= 2^{t-1} -500[/tex].
Learn more about function here
brainly.com/question/12431044
#SPJ2
Simplify the Division Expression Below:
12 divided by 3/5
Answer:
ggg
Step-by-step explanation:
gggggg
a championship swimmer swims 20 meters in 10 seconds. what is his speed
Answer:
his speed is 2 meters per second
Answer:
his speed is 2 meters per second
Step-by-step explanation: none
Is a coin flip random? Why or why not, in your opinion?
Choose the correct answer below.
A.
Yes. You will get heads on every other flip.
B.
Yes. You cannot predict the outcome beforehand.
C.
No. You must run numerous trials before you can tell.
D.
No. You can predict the outcome beforehand.
Answer:
B
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
6. Find the ICM of 60 and 400
Answer: it's 1200
Step-by-step explanation: please give me brainliest
400x3=1200
60x20=1200
Greatest common factor 20x76 and 8x92
Answer:
dont know this one my apologies