Answer:
There is no significant evidence to support the claim that an association between seed density and lawn quality exists.
Step-by-step explanation:
Given the data :
Seed Density Lawn Quality
1 30
1 40
2 40
3 40
3 50
3 65
4 50
5 50
Using technology to obtain the correlation Coefficient between seed density and lawn quality, the Coefficient, R = 0.6
H0 : ρ = 0
H1 : ρ ≠ 0
We can then calculate the test statistic :
Test statistic = r / √(1 - r²) / (n - 2)
Test statistic = 0.6 / √(1 - 0.6²) / (8 - 2)
Test statistic = 0.6 / 0.3265986
Test statistic = 1.837
Pvalue from test statistic : = 0.11583
α = 0.01
Pvalue > α ;
We fail to reject the null
please please please help me find the answerrrrr
Answer:
320.28?
Step-by-step explanation:
The cost to mall a package is $5 for the first 2 pounds and 40 cents for each additional ounce. Which of the following functions represents the cost to mall a package if x is the number of ounces over 2 pounds?
plz hurry
Answer:
Step-by-step explanation:
5 times 2 equales 10 divided by 40 eqauls 4 times 2 equals 8
Which is the simplified form of the expression
Answer:
4 / x¹⁴y⁸
Step-by-step explanation:
eliminate parenthese by multiplying all exponents inside parentheses by the exponent outside the parentheses:
1/2⁶ ÷ 1/4⁴ = 1/64 ÷ 1/256 which equals 256/64 or 4
x⁻⁶y⁴ ÷ x⁸y¹² = x⁻¹⁴y⁻⁸ = 1/x¹⁴ · 1/y⁸
put it all together to get:
4÷(x¹⁴y⁸)
why 13/4hr and 4hr are equal ?
Answer:
they are not equal
Step-by-step explanation:
13/4 hour is 3hour and 15 minutes
Find the zeros of the quadratic function: y= 6(7x + 9)(8x - 3).
A) (-9/7,0), (3/8,0)
B)(-7/9,0), (8/3,0)
C) (-3/8,0), (°/7,0)
D) (-8/3,0), (7/9,0)
Answer:
A) (-9/7,0), (3/8,0)
Step-by-step explanation:
Zeros of a quadratic function:
x for which y = 0.
In this question:
[tex]y = 6(7x + 9)(8x - 3)[/tex]
It's 0 if one of the factors is 0. 6 is never 0, now about the other to:
[tex]7x + 9 = 0[/tex]
[tex]7x = -9[/tex]
[tex]x = -\frac{9}{7}[/tex]
So (-9/7, 0) is a zero of the quadratic function.
The other is:
[tex]8x - 3 = 0[/tex]
[tex]8x = 3[/tex]
[tex]x = \frac{3}{8}[/tex]
(3/8,0) is the other zero.
Thus, the correct answer is given by option A.
Please help! Image attached!
Number 1 is 5y = 50
Number 2 is h = 7
Number 3 is multiplication
Number 4 is addition
I'll mark BRAINLIEST!
A hot air balloon started at a height of 2 units. Then it removes 1 sandbag(s). What is its final height?
Answer:
it becomes a 3 unit hight
Line AB contains points A(4, 5) and B(9,7). What is the slope of AB?
Answer:
2/5
Step-by-step explanation:
Since we have two points on the line, we can use the slope formula
m = ( y2-y1)/(x2-x1)
= ( 7-5)/(9 - 4)
= 2/5
Does the point (5, 24) lie on the line y = 5x - 1?
Answer:
Step-by-step explanation:
Because 5x - 1 = 55 - 1 = 24 = y
Answer:
YesStep-by-step explanation:
[tex]( 5 \: \: \: \: \: \: \: \: 24) \\ replace \: \: \: x \: \: \: and \: \: y \\ y = 5x - 1 \\ 24 = 5 \times 5 - 1 \\ 24 = 25 - 1 \\ 24 = 24[/tex]
The point (5, 24) lie on the line y = 5x - 1An infinite sheet of charge, oriented perpendicular to the x-axis, passes through x = 0. It has a surface charge density ?1 = -4.6 ?C/m2. A thick, infinite conducting slab, also oriented perpendicular to the x-axis occupiees the region between a = 2.8 cm and b = 4.5 cm. The conducting slab has a net charge per unit area of ?2 = 60 ?C/m2.
1) What is Ex(P), the value of the x-component of the electric field at point P, located a distance 6.3 cm from the infinite sheet of charge?N/C 2)
2) What is Ey(P), the value of the y-component of the electric field at point P, located a distance 6.3 cm from the infinite sheet of charge?N/C 3)
3) What is Ex(R), the value of the x-component of the electric field at point R, located a distance 1.4 cm from the infinite sheet of charge?N/C 4)
4) What is Ey(R), the value of the y-component of the electric field at point R, located a distance 1.4 cm from the infinite sheet of charge?N/C 5)
5) What is b, the charge per unit area on thesurface of the slab located at x = 4.9 cm??C/m2 6)
6) What is Ex, the value of the x-component of the electric field at a point on the x-axis located at x = 3.64 cm ?N/C 7)
7) What is ?a, the charge per unit area on the surface of the slab located at x = 2.8 cm??C/m2 8)
Enter the value that belongs in the green box
Answer:
0,83
Step-by-step explanation:
tan(40)=0,83
0.8390996312tep-by-step explanation:
A golf course charges $10 to golf or $150 for a summer pass. Write an inequality to represent the number of times x you would need to golf in order for the summer pass to be a better deal. Use x as the variable.
Answer:
An inequality to represent the number of times you would need to golf in order for the summer pass to be a better deal is:
10x> 150
Step-by-step explanation:
hope this helps <3
Assuming the speed of sound is 340 m/s ..
Answer:
You did not finish the question. If you were to finish it, we might be able to help you.
Jamie and Erika were in a race. Jamie could run 15 meters per second. Erika could only run 10 meters per second. So Jamie decided to give Erika a head start of 5 meters. After how many seconds will the two girls meet?
Answer: 1 s
Step-by-step explanation:
Given
Jamie speed is 15 m/s
Erika speed is 10 m/s
Erika has a 5 m head start
For Jamie to catch Erika, Jamie must travel 5 m + the distance traveled by Erika in the same time t
[tex]\therefore 15t=5+10t\\\Rightarrow15t-10t=5\\\Rightarrow 5t=5\\\Rightarrow t=1\ s[/tex]
After 1 s, Jamie and erika meet at the same point.
Answer: 1 s
Step-by-step explanation:
Given
Jamie speed is 15 m/s
Erika speed is 10 m/s
Erika has a 5 m head start
For Jamie to catch Erika, Jamie must travel 5 m + the distance traveled by Erika in the same time t
After 1 s, Jamie and erika meet at the same point.
4x2-36x+80=0
Soma e Produto
Does anyone know how to find the mean of one number?
For example, what is the mean of 44?
Answer:
It's just the number itself, therefore, it's just 44.
Step-by-step explanation:
Finding the mean of many numbers is just adding up all of the values and then dividing the sum by how many numbers there in the list. Since it is just one number and you divide it by the count, which in this case it's 1, it will be the number itself, 44. As there is only one number, this calculation is always the number itself. I hope this helps! Let me know if I am wrong! :D
solve the ODE y'+xy=x² with y(0)=2
Product of [x y] [1 2] is
Answer:
12xy
Step-by-step explanation:
Product of [x y] [1 2] is
(xy)×(12)=12xy
If 21% of males and 15% of females in a given state play the guitar what is the probability that a randomly selected subject in the state plays the guitar given that the subject is male
Answer: if we were to say that the population was 50% male and 50% female, than 21% of the males would play the guitar and 15% of the females would also play the guitar, if it is talking about the population in geteral, than 21% of men and 15% of female play the guitar, but the remaining 64% of people don't play the guitar.... i don't think this is the answer, so if you chose my first case, the answer would be 0.105 for males or 10.5 % or percent of males play guitar in the state
Step-by-step explanation: chose one of my cases
Answer:0.21
Step-by-step explanation:
PLATO
Factor x^2 + 29x - 30. Type your answer in the space provided. Do not type spaces in your answer. Use only lowercase letters and include all necessary parentheses, variables and operation signs. For example, if the answer is (x +1)(x+2), type (x+1)(x+2).
Answer:
(x-1)(x+30)
..............
A box of candies has 14 pieces in total. If 2 of the pieces are strawberry flavored what is the ratio of the other flavors to the strawberry pieces ?
Answer:
12:2 or 6:1
Step-by-step explanation:
Factorize 5xz - 10xy
Step-by-step explanation:
5xz-10xy5x(z-2y)hope it helps.
stay safe healthy and happy.....Suppose 2500 dollars is invested at 4% for 5 years. Find the account balance if it is
compounded daily, monthly, quarterly?
answer step by step
Answer:
Kindly check explanation
Step-by-step explanation:
Using the compound interest formula :
A = P(1 + r/n)^nt
A = final amount ; r = rate ; n = number of compounding times per period ; t = period ; P = principal
P = 2500 ; r = 4% = 0.04 ; t = 5 years
Daily compounding, n = 365
Yearly compounding, n = 1
Quarterly compounding, n = 4
Daily compounding :
A = 2500(1 + 0.04/365)^(5*365)
A = 2500(1.0001095)^1825
A = $3053.4734
Yearly :
A = 2500(1 + 0.04/1)^(5*1)
A = 2500(1.04)^5
A = $3041.6323
Quarterly:
A = 2500(1 + 0.04/4)^(5*4)
A = 2500(1.01)^20
A = $3050.4751
Please help image attached
Answer:
hope it helps mark as brainliest
Use y = mx + b to determine the equation of a line that passes through the point A(-1, 4) and is
parallel to the line:
4x – 2y + 8 = 0
Answer:
Step-by-step explanation:
If we are looking for a line parallel to the given line, we need to find the slope of the given line, since parallel lines have the exact same slope. That means that we need to solve this equation for y, which naturally puts the line into slope-intercept form. Solving for y:
-2y = -4x - 8 and
2y = 4x + 8 so
y = 2x + 4 and the slope, we see here, is 2. Use that slope and the given point of (-1, 4) to write the new equation we need.
In point-slope form, the line will be
y - 4 = 2(x - (-1)) which simplifies a bit to
y - 4 = 2(x + 1). That's point-slope form. Putting it into slope-intercept just requires that we solve this equation for y:
y - 4 = 2x + 2 and
y = 2x + 6. That's slope-intercept form of the same line. The last form is standard, which looks like this:
-2x + y = 6 or, if you don't like to lead with a negative,
2x - y = -6
1. Which equation should be used to find the area of the triangle below? *
1 point
5 inches
-5 inches
2 inches
Answer:
See Explanation
Step-by-step explanation:
Required
Expression for area of triangle
This is calculated using
[tex]Area = \frac{1}{2} * base * height[/tex]
Assume that:
[tex]base = 5cm; height = 2cm[/tex]
The equation becomes
[tex]Area = \frac{1}{2} * 5* 2[/tex]
The ratio of the numbers of students in Mr. Moore’s class compared to the number of students in Miss Henry’s class is 5:4. The ratio of the number of students in Miss Henry’s class compared to the number of students in Mr. Wilson’s class is 8:9. What is the ratio of number of students in Mr. Moore’s class to Mr. Wilson’s class.
Answer:
10:9
Step-by-step explanation:
First ratio is 5:4. 4 is equal to Henry class
If you múltiply the ratio by 2 you get
10:8, This ratio can be compared because now Henry class has 8
2(5:4)
10:8
8:9
Meaning that the answer is 10:9
Find the perimeter of the
polygon if ZB = ZD.
6.5 cm
B
7.5 cm
D
8.5 cm
с
P = [?] cm
Enter
Answer:60
Step-by-step explanation:
The Perimeter of the polygon is 60 cm.
A polygon is a closed figure made up of three or more line segments connected end to end.
To solve this question we will use the property of the tangents drawn from a point to a circle.
"Length of tangents drawn from a point to a circle are equal in measure."
With this property,
Therefore, BG ≅ FB ≅ 7.5 cm
AG ≅ AH ≅ 6.5 cm
CF ≅ EC ≅ 8.5 cm
Since m∠B ≅ m∠D
Therefore, length of tangents FB ≅ GB ≅ DE ≅ DH ≅ 7.5 cm
Since, Perimeter of ABCD = AB + BC + CD + DA
AB = 7.5 + 6.5
AB = 14 cm
BC = 7.5 + 8.5
BC = 16 cm
CD = 8.5 + 7.5
CD = 16 cm
DA = 7.5 + 6.5
DA = 14 cm
Now Perimeter = 16 + 16 + 14 + 14
= 60 cm
Therefore, P = 60 cm will be the answer.
Learn more about polygons;
brainly.com/question/23093359
#SPJ4
Find the perimeter of this quarter circle with radius,
r
= 2mm.
Give your answer as an expression in terms of
π
.
Answer:
pi
Step-by-step explanation:
First find the circumference of the circle
C = 2 * pi*r
C = 2 * pi *2
C = 4pi
A quarter circle is 1/4 of a circle
1/4 C = 1/4 (4pi)
1/4C = pi
Please answer ai i pray toyou ai brainly 5+5f-6=7
Answer:
f = 1.6
Step-by-step explanation:
Answer:
f = 8/5
Step-by-step explanation:
[tex]5 + 5f - 6 = 7\\5f - 1 = 7\\5f = 7 + 1 \\5f = 8\\\\f = \frac{8}{5}[/tex]
