The critical values are ±1.833, and the test value is 1.708.
There is no difference in the mean earnings of professional golfers in the PGA and LPGA.
Part 1
Hypotheses:H₀: μ₁ = μ₂ (there is no difference in means)
H₁: μ₁ ≠ μ₂ (there is a difference in means)
This is a two-tailed test with the level of significance α = 0.10. We will perform a two-sample t-test with unequal variances.
Critical values:
Using the t-table with df = 9 and α = 0.10, the critical values are ±1.833.
Conclusion:The critical values are ±1.833, and the test value is 1.708. Since the test value is not in the critical region, we fail to reject the null hypothesis. Therefore, at the 0.10 level of significance, there is no difference in the mean earnings of professional golfers in the PGA and LPGA.
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Question 5 of 5
Find the solution to the following system by substitution.
x + y = 20
y = 3x + 8
A. (7,29)
B. (3, 17)
C. (4,20)
D. (17, 3)
PLEASE HELP ME QUICK! :(
Answer:
B. (3, 17)
Step-by-step explanation:
You want to solve this system of equations by substitution:
x + y = 20y = 3x +8SubstitutionWe are given an expression for y. Substituting that into the first equation gives ...
x + (3x +8) = 20
4x = 12 . . . . . subtract 8
x = 3 . . . . . . divide by 4
y = 3(3) +8 = 17
The solution is (x, y) = (3, 17).
<95141404393>
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evaluate the following expressions.
a. −58.49−(−95.09)
b. −20.04−74.14
c. −9.73+6.48
d. −69.2+(−5.81)
e. 22.47+(−76.5)
GOOD LUCK!!!
Answer:
A. 36.6
B. -94.18
C. -3.25
D. -75.01
E. -54.03
Answer:
a. 36.6
b. - 94.18
c. - 3.25
d. - 75.01
e. -54.03
Step-by-step explanation:
Hope this helps, have a great day
What percent of the symbols are $?
$ *
* $ $
*
*
* *
*
$ $ $ $
Plzzzzz help
The distance between two cities is 145 miles. A truck can cover this distance in 2. 5 hours. A car is 1. 5 times as fast as the truck. How long does it take them to meet, if they start moving towards each other simultaneously?.
The relative speed of the car to the truck while moving towards each other is the sum of the speed of both vehicles.
The time it takes them to meet is 1 hourReasons:
The distance between the cities, d = 145 miles
The time it takes a truck to cover the distance = 2.5 hours
The speed of the car = 1.5 × Th speed of the truck
Required:
The time it takes them to meet if they are moving towards each other.
Solution:
\(\displaystyle Speed = \mathbf{ \frac{Distance}{Time}}\)\(\displaystyle Speed \ of \ the \ truck, \ v_{truck} = \frac{145 \ miles}{2.5 \ hours} = \mathbf{58 \ mph}\)
Therefore;
The speed of the car, \(v_{car}\) = 1.5 × 58 mph = 87 mph
At the time, t, the truck and the car meet, we have;
\(\mathbf{v_{car} \times t + v_{truck} \times t = d}\)
Which gives;
87 × t + 58 × t = 145
\(\displaystyle t = \mathbf{\frac{145}{87 + 58}} = 1\)
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Amy has scored 77, 87, and 74 on her previous three tests. What score does she need on her next test so that her average (mean) is 76?
After scoring 77, 87, and 74 on her previous three tests, Amy needs to score 66 on her next test in order to have an average of 76.
To find the score that Amy needs on her next test to have an average of 76, we need to use the formula for the mean of a set of numbers:
Mean = (Sum of all numbers) / (Total number of numbers)
We know that Amy's current scores are 77, 87, and 74, and we want her average to be 76. Let's call the score she needs on her next test "x".
So, we can plug these values into the formula:
76 = (77 + 87 + 74 + x) / 4
Now, we just need to solve for x:
76 * 4 = 77 + 87 + 74 + x
304 = 238 + x
x = 304 - 238
x = 66
So, Amy needs to score a 66 on her next test in order to have an average of 76.
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someone pls answer this I'll give whoever answers brainlist!
Leandros resting heart rate is 14 beats in 15 seconds.
A) heart rate is often expressed in beats per minute (bpm).
write Leandros heart rate in nom
b) how many minutes does it take for Leandros heart to beat 1512 times?
What is the factor of 25w6 + 35w3
Answer:
53(53+7)
Step-by-step explanation:
Find the measure of angle a and b?
The correct answer of this question is;
A=(2x+4)
=2×37+4
=78
B=(2x-9)
=2×37-9
=65
Step-by-step explanation:
(2x+4)+(2x-9)+x=180(The sum of all angle of a triangle is 180°)
or,5x-5=180
or,5x=185
or,x=185/5
Therefore the value of x=37.
How to round to 1000
from 90 apples to 75 apples round to the nearest percent decrease
Answer:
17%
Step-by-step explanation:
90-75 = 15 (the amount of apple decreased by 15)
15/90 = 16/67%
16.67% rounded to the nearest percent, is 17%.
Hope that helps!
What is the mathematical model of an AST for a BL statement?
The mathematical model of an abstract syntax tree (AST) for a programming language's block (BL) statement typically involves representing the syntax of the statement using a tree structure.
This tree structure consists of nodes that correspond to different components of the statement, such as keywords, variables, operators, and expressions. The AST provides a way to parse and interpret the syntax of the statement, allowing for efficient compilation and execution of the code.
The model can be represented using various algorithms and data structures, such as recursive descent parsing or top-down parsing. Ultimately, the AST serves as a tool for developers to analyze, optimize, and debug their code, and is an essential component of many modern programming languages.
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Find x
I need a complete solution and answer
ty in advance
\(\bold{\huge{\underline{ Solution }}}\)
Given :-Here, we have four exterior angles of the quadrilateral that is 9x° , 4x° , (5x - 10)° , (5x + 25)° To Find :-We have to find the measurement of all the exterior angles Let's Begin :-Here, we have
Angle ABD = 9x°Angle CDB = 4x°Angle HGE = (5x - 10)°Angle DEG = ( 5x + 25)°We know that,
Sum of interior angle and exterior angle is equal to 180°Therefore,
Interior angles of the given quadrilateral
Angle B= 180° - 9x°Angle D = 180° - 4x°Angle E = 180° - ( 5x + 25)°Angle G = 180° - ( 5x - 10)°We also know that,
The sum of angles of quadrilateral is 360°That is,
\(\bold{ {\angle} B + {\angle } D + {\angle} E + {\angle } G = 360{\degree} }\)
Subsitute the required values,
\(\sf{ ( 180 - 9x){\degree} + (180 - 4x){\degree} + (180 - (5x + 25)){\degree} + (180 - (5x - 10){\degree} = 360{\degree}}\)
\(\sf{ 180 - 9x + 180 - 4x + 180 - 5x - 25 + 180 - 5x + 10 = 360{\degree}}\)
\(\sf{ 180 + 180 + 180 + 180 - 9x - 4x - 5x - 5x -25 + 10 = 360{\degree}}\)
\(\sf{ 720 - 23x - 15 = 360{\degree}}\)
\(\sf{ 705 - 23x = 360{\degree}}\)
\(\sf{ 705 - 360 = 23x }\)
\(\sf{ 23x = 345 }\)
\(\sf{ x = }{\sf{\dfrac{ 345}{25}}}\)
\(\sf{ x = }{\sf{\cancel{\dfrac{ 345}{25}}}}\)
\(\bold{ x = 15 }\)
Thus, The value of x is 15°
Therefore,All the exterior angles of the given quadrilateral are :-
Angle ABD
\(\sf{ = 9(15) }\)
\(\bold{ = 135{\degree}}\)
Angle CDB
\(\sf{ = 4(15) }\)
\(\bold{ = 60{\degree}}\)
Angle HGE
\(\sf{ = 5(15) - 10 }\)
\(\sf{ = 75 - 10 }\)
\(\bold{ = 65 {\degree}}\)
Angle DEG
\(\sf{ = 5(15) + 25 }\)
\(\sf{ = 75 + 25 }\)
\(\bold{ = 100 {\degree}}\)
Hence, All the exterior angles of the given quadrilateral are 135° , 60° , 65° and 100°
Solve for X round to nearest tenth
Answer:
the answer for this question is 35.0
Polygon pqrs is a scaled copy of abcd. name the angel in the scaled copy that corresponds to angle abc.
The angel in the scaled copy that corresponds to angle abc in the polygon pqrs which is a scaled copy of abcd will be angle pqr.
We have,
As we can see the attached figure,
Scale factor : Scale Factor is the ratio of size of new image formed to the size of old image and the image obtained is the scaled copy.
i.e.,
Scale factor = \(\frac{Change\ in\ size}{Original\ size}\)
So,
There are two Polygons abcd and pqrs,
And,
Polygon pqrs is the scaled copy of Polygon abcd,
So,
That means both polygons are similar,
so,
Their corresponding angles will be same,
So
We can say that angle corresponds to angle abc is angle pqr.
Hence, we can say that the angel in the scaled copy that corresponds to angle abc in the polygon pqrs which is a scaled copy of abcd will be angle pqr.
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if p:q = 1/3:2 and p:r = 1/2:3/4 calculate the ratio p:q:r
Answer:
p:q=1/3:2=1:6=3:18
p:r=3/4:1/2=3:2
p:q:r=3:18:2
i hope its help to you ✌
What is m∠1?............
the answer is 101
hope that helped
15
Select the correct answer from each drop-down menu.
Let on be the total number of miles Joanna has cycled, and let trepresent the number of hours after stopping for a break during her
ride
dt
= 12 + 20
Joanna
So, 04) =
This means that after
The value of d(4) is 68, and the correct interpretation is "Joanna has cycled a total of 68 miles".
To find the value of d(4), we need to substitute t = 4 into the equation d(t) = 12t + 20.
Here's how we can do that:
1. Start with the given linear equation:
d(t) = 12t + 20
2. Substitute t = 4 into the equation:
d(4) = 12(4) + 20
3. Simplify the expression:
d(4) = 48 + 20
d(4) = 68
Therefore, the value of d(4) is 68. This means that after 4 hours of cycling and stopping for a break, Joanna has cycled a total of 68 miles.
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The complete question:
Let d(t) be the total number of miles Joanna has cycled, and let t represent the number of hours after stopping for a break during her ride.
d(t)=12t+20
So, d(4) = [32,96,88,68].
This means that after [cycling 4 miles, 4 hours, a 4-hour break, cycling at a speed of 4 mph], Joanna [took a 96-minute break, cycled for 68 miles total, rode for 32 hours total, cycled 88 miles total].
Find the value of d(4).
If w = 10 units, x = 5 units, and y = 6 units, what is the surface area of the figure? Round your answer to the nearest tenth.
Figure is composed of a right square pyramid on top of a square prism. The sides of the square pyramid are equal to the sides of the square prism, the length and width of the square prism is w, the height of the square prism is x, and the height of the square pyramid, which forms a right angle with the center, is y.
A) 656.2 units2
B) 400 units2
C) 256.2 units2
D) 456.2 units2
Answer:
456.2 units², so answer d
Step-by-step explanation:
The area of the square base is ...
base area = w² = (10 units)² = 100 units²
The lateral area is 4 times the area of one rectangular face:
lateral area = 4wx = 4(10 units)(5 units) = 200 units²
The area of one triangular face is half the product of its base length (w) and its slant height (h). The latter is found using the Pythagorean theorem:
h² = y² +(w/2)² = (6 units)² +((10 units)/2)² = 61 units²
h = √61 units
So, the area of 4 triangles is ...
area of triangular faces = 4(1/2)wh = 2(10 units)(√61 units) ≈ 156.2 units²
Now we have the areas of the parts, so we can add them together to get the total surface area:
surface area = base area + lateral area + area of triangular faces
= 100 units² + 200 units² + 156.2 units²
surface area = 456.2 units²
I need the answer i’m being timed and don’t have a calculator someone please help asap
Help please. I'm stuck.
Answer:
15
Step-by-step explanation:
Each bracelet takes 28+10 = 38 elastic bands. If you have 600 bands, you can make ...
600/38 = 15 30/38 . . . bracelets
You can make 15 complete bracelets.
__
You will have 30 elastic bands left over.
what is the probability that at least 3 are hyperlipidemic? what is the probability that exactly 3 are hyperlipidemic? how many would be expected to meet the criteria for hyperlipidemia?
Triangle MNO is a right triangle with one leg = 15ft and the other leg = 18ft. Calculate the
length of the hypotenuse to the nearest hundredth of a foot (2 decimal places)
Answer:
Length of the hypotenuse = 23.43ft
Step-by-step explanation:
First leg = 15ft
Second leg = 18ft
Length of the hypotenuse = ?
In a right angle triangle,
Hypotenuse^2 = opposite^2 + Adjacent^2
Let first leg and second leg of the triangle be opposite and adjacent respectively
Hypotenuse^2 = opposite^2 + Adjacent^2
= 15^2 + 18^2
= 225 + 324
= 549
Hypotenuse^2 = 549
Find the square root of both sides
√Hypotenuse^2 = 549
Hypotenuse = 23.43ft to the nearest of a hundredth
Length of the hypotenuse = 23.43ft
please tell me. i have an hr to finish and try to get a passing grade so i won’t have to retake this class
Answer:
\(h(x)=\left(\cfrac{1}{10}\right)^3\)
_______________
x h(x)
-3 (1/8)^{-3}= 1000
-2 (1/8)^{-2}= 100
-1 (1/8)^{-1}= 10
0 (1/8)^{0}= 1
1 (1/8)^{1}= 1/10
________________
~
A company is trying to decide which container of coffee to buy for a staff meeting. Which of the following would be the best deal?
Answer:
D) 45 ounces for $4.50
Step-by-step explanation:
You have to find the price of one unit (ounce) for each. You can do this by dividing the price by quantity. The one with the lowest price is the best deal.
A) 32 ounces for $4.00
$0.13 for 1 ounce
B) 60 ounces for $6.75
$0.11 for 1 ounce
C) 48 ounces for $5.00
$0.11 for 1 ounce
D) 45 ounces for $4.50
$0.10 for 1 ounce
The best choice will be option D. That is 45 ounces for $4.50.
What is an expression?The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.
Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.
You have to find the price of one unit (ounce) for each. You can do this by dividing the price by quantity. The one with the lowest price is the best deal.
A) 32 ounces for $4.00
$0.13 for 1 ounce
B) 60 ounces for $6.75
$0.11 for 1 ounce
C) 48 ounces for $5.00
$0.11 for 1 ounce
D) 45 ounces for $4.50
$0.10 for 1 ounce
The complete question is given below.
A company is trying to decide which container of coffee to buy for a staff meeting. Which of the following would be the best deal? Hint: find the best unit cost
Group of answer choices
32 ounces for $4.00
60 ounces for $6.75
48 ounces for $5.00
45 ounces for $4.50
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HELP ASAP! Relations and Functions!!! Giving brainliest!!!
Answer:
Step-by-step explanation:
Neither are a function because they do not pass the vertical line test.
PLEASE HELP,!! HURRY!!!!! 40 points!!!
which word best describes the degree of overlap between the two data sets?
Low
None
Moderate
High
Answer:
moderate since the lines are similar
In year one, a dog's weight increased from 60 to 90 pounds. By what percentage did the dog's weight increase?
Answer:
The answer is 50%
Step-by-step explanation:
Find the slope of the line represented by each table of values
Answer:
-5 is the slope
Step-by-step explanation:
Here is the formula
y2-y1
____
x2-x1
I need help 20 POINTS for who ever answers this!
Answer:I think it would be 3 cups per day it would only make sense :)
Step-by-step explanation:
Which of the following is a univariate display of quantitative data? histogram mosaic plot bar chart scatterplot
A histogram is a univariate display of quantitative data that organizes data into bins and shows the frequency of observations within each bin.
A histogram is a graphical representation that displays the distribution of quantitative data. It consists of a series of contiguous bars, where each bar represents a specific range or bin of values, and the height of the bar corresponds to the frequency or count of observations falling within that range.
Histograms are commonly used to visualize the shape, central tendency, and spread of a dataset. By examining the heights of the bars, one can determine the frequency of values within each bin and identify patterns such as peaks or clusters. This makes histograms an effective tool for exploring the distribution and characteristics of a single variable in a dataset.
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