Answer:
conclude that there is no significant evidence to support the claim that difference exists between the mean number of miles run by the two groups.
Step-by-step explanation:
H0 : μ1 = μ2
H0 : μ1 ≠ μ2
The test statistic :
(x1 - x2) / √(s1²/n1) + (s2²/n2)
(49.5 - 48.5) / √(1.1²/38) + (2.6²/33)
1 / √0.2366905
Test statistic = 2.055
Using the Pvalue from Tstatistic calculator :
df = (smaller sample - 1) = 33 - 1 = 32
Pvalue from Test score calculator = 0.048
Pvalue > α ; Fail to reject the null ;
Hence, conclude that there is no significant evidence to support the claim that difference exists between the mean number of miles run by the two groups.
In a village, the cases of a particular infectious
disease have been exponentially decreasing at
a rate of 95% per year since the people started
receiving the vaccine. If there were 200 cases
in the village to start with, predict the number
of cases after 2 years.
First, complete the equation:
Remaining Amount = 200(1-0.95)²
The number remaining in the village is 30.
How many people remain?We have to note that the case in which the population of the community is being reduced because of the fact that the community is being ravaged by disease is a case of a decrease in the population and is a problem of exponential decrease.
Then we would have that;
N =Noe^-rt
N = Number at time t
No = Initial number
r = spread rate
t = time taken
Then;
N = 200e^-0.95 * 2
N = 30
Thus, they would have only 30 people left.
Learn more about exponential:https://brainly.com/question/14355665
#SPJ1
help me plzzzzzzzzz
solve for x
Answer:
[tex]7) \frac{x+20}{x}=\frac{46}{30}[/tex]
[tex]30(x+20)=46x[/tex]
[tex]30x+600=46x[/tex]
[tex]46x-30x=600[/tex]
[tex]16x=600[/tex]
[tex]x=75/2[/tex]
[tex]x=37.5[/tex]
---------------------
[tex]8) \frac{10}{3x+1} =\frac{22}{7x-1}[/tex]
[tex]10(7x-1)=22(3x+1)[/tex]
[tex]70x-10=66x+22[/tex]
[tex]70x-66x=22+10[/tex]
[tex]4x=32[/tex]
[tex]x=\frac{32}{4}[/tex]
[tex]x=8[/tex]
---------------------
hope it helps...
have a great day!!
Only question b
b) Write down the output y in terms of x
Input = x > +7 > x5 > Output = y
Therefore ,As a result, y = 5x + 35 is the equation that gives the answer to the given algebra issue.
Algebra: What Is It?Algebra is used to analyze mathematical symbols, and logic is used to manipulate those symbols. The PEMDAS rule stands for the following operations: parenthesis, exponent, multiplication, division, addition, and subtraction. This rule is applied to solve the equation properly and accurately.
Here,
In this case, the equation for y in terms of x will be as follows:
y = 5(x + 7)
If you make the equation simpler, you get
y = 5(x + 7)
y = 5x + 35
y will have the linear equation y = 5x + 35 in terms of x.
Therefore , As a result, y = 5x + 35 is the equation that gives the answer to the given algebraic issue.
To learn more about the Algebra visit:
brainly.com/question/953809
#SPJ1
Solve: 63z2+61z=−6. Multiple answers
z = -1/9 , -6/7
Have a nice day!
What is the slope of the line that is perpendicular to the line y = -2x + 5?
slope =
Answer:
The perpendicular line is vertical and the slope is undefined.
Step-by-step explanation:
i need help on this for math class dont mind how i answered a
Step-by-step explanation:
I think its c cus its more relatable .
Answer:
c would be the answer.
when you answer the equation x - 15= 60
you would add 15 to 60 to get 75. That is the only answer that would make sense.
Can someone help plz
Answer:
I never did this sort of stuff so correct me if I am wrong but I think it's 25
Step-by-step explanation:
a skier travels 4 seconds and cover 72 meters. how long will it take the skier to travel 360 meters?
what is the value of x in the equation shown below x^3+1=9
Answer:
x = 2
Step-by-step explanation:
x^3 + 1 = 9
x^3 = 8
[tex]\sqrt[3]{x^3}[/tex] = [tex]\sqrt[3]{8}[/tex]
x = 2
What must the values of x and y be so that the two houses are similar?
Population Growth
Using the graph, find the value of y when x = 7.
a. y = 7 c. y = 2.71
b. y = 6.1 d. y = 4.42
Please select the best answer from choices provided
Answer:
D. y = 4.42
Step-by-step explanation:
I calculated it logically
Find the measure angles
No links for answers
Answer:
Angle L = 44
Angle M = 93
Angle O = 88
Angle P = 74
Step-by-step explanation:
First find your x, all angles will equal 360 when put together
360=61+x+(2x+5)+(x+30)+(2x)
360 = 61 + 5 +30 + x + 2x + x + 2x
360 - 96 = 6x
264 = 6x
264 / 6 = x
44 = x
Now place 44 in place of all x
Angle L:
x = 44
Angle M
(2x+5) = 2*44 + 5 = 93
Angle O
2x = 2*44 = 88
Angle P
(x+30) = 44 + 30 = 74
A sample of 14 cans of Brand I diet soda gave the mean number of calories of 23 per can with a standard deviation of 3 calories. Another sample of 16 cans of Brand II diet soda gave the mean number of calories of 25 per can with a standard deviation of 4 calories. At the 1% significance level, can you conclude that the mean number of calories per can are different for these two brands of diet soda? Assume that the calories per can of diet soda are normally distributed for each of the two brands and that the standard deviations for the two population are equal.
Answer:
ठथठलछंशू फथजलट एक ओज पनि हो र स्वार्थी यसलाई मैले कसरी भुल्न सक्थेँ र त्यहाँको बडेमाको बिल्डिङ भित्र म. म जिन्दगी एक यात्रा तय गर्न गर्ने हो र त्यहाँको बडेमाको बिल्डिङ बनाउनलाई मुख्य समाचार पृष्ठ सभकेँ रिफ्रेश कए देखू। म भने त्यो भने हेर्न
Only answer if you’re sure :) need the whole answer! Will give Brainly
Answer:
Step-by-step explanation:
y = -1x + 1
y = -x + 1
I'm sure :P
Answer:
y=-1x+1
Step-by-step explanation:
the slope is 1/1 and line is declining hence the negative
The gray figure below is the image of the black figure after a dilation. Which represents the dilation?
A (x,y) -> (2x, 2y)
B (x,y) -> (3x, 3y)
C (x,y) -> (0.5x, 0.5y)
D (x,y) -> (x+4, y+5)
The answer is A (x,y) -> (2x, 2y) it is representing the dilation.
What is dilation?Dilation is a medical procedure that involves widening a part of the body, such as the cervix or esophagus, by stretching and enlarging it. This can be done for a variety of reasons, including to allow for the passage of a baby during childbirth or to facilitate the insertion of a medical instrument or device. Dilation is usually done using dilators, which are cylindrical tools with a tapered end that can be inserted into the body and then gradually increased in size.
Dilation is a geometric transformation that enlarges or reduces the size of a shape by a factor. In this case, the shape is enlarged, with the resulting shape being twice the size of the original black figure. This is represented by the equation A (x,y) -> (2x, 2y), where the x and y coordinates of each point in the figure are multiplied by two.
To know more about dilation click-
https://brainly.com/question/3457976
#SPJ1
A circle of radius 8 cm is cut into 6 parts
of equal size, as shown in the diagram.
Calculate the area of each part, giving
your answer correct to 2 decimal places.
Answer: To calculate the area of each part of the circle, we need to first find the total area of the circle and then divide it by the number of parts.
The formula for the area of a circle is A = πr², where A is the area, r is the radius, and π is approximately equal to 3.14.
In this case, the radius of the circle is 8 cm, so the area of the circle is A = π * 8² = 3.14 * 64 = 200.96 cm².
Since the circle is divided into 6 parts of equal size, the area of each part is equal to the total area of the circle divided by the number of parts. Therefore, the area of each part is 200.96 cm² / 6 = 33.49 cm².
Rounded to 2 decimal places, the area of each part is 33.49 cm² ≈ 33.50 cm².
Step-by-step explanation:
A, B, C, or D?
and an explanation
Answer:
A
Step-by-step explanation:
any help please — Put the fractions 12,38 and 34 in order from smallest to largest. Find the value of 113+256.
The value of 113+256 is determined by the above fractional formulae. Is 369
Why are fractional equations difficult to solve?An exact number that shows a percentage of a total is called a fraction. You may figure it out by dividing a sum by the quantity of parts. As an example, the number 12 represents one-half of a whole number or an object. Simple subtraction of the smaller numerator from the larger numerator will yield the solution to the problem. To solve, for instance, 6/8 - 2/8, just take 2 out of the answer. The answer, which can be abbreviated to "4/8," is 12, or 12.
Making a fraction simpler by reducing or simplifying it is our goal. In order to do this, we divide the denominator and numerator by the largest integer that can be divided into both integers precisely. That is to say,
To learn more about fractional equations to refer:
brainly.com/question/10354322
#SPJ1
Please help me faster if know please?!!!!
what is the area shaded in the region?
Answer:
Option C
The Area Of Shaded Region is 50.2 cm²
Step-by-step explanation:
For A given Circle,
For Small (Non-Shaded) Circle:
Diameter (d) = 6 cm
Radius = d ÷ 2 = 6/2 = 3 cm
For Area of Small (Non-Shaded) Circle
Formula:A = πr²
A = 3.14 × (3)² cm
A = 3.14 × 9 cm
A = 28.26 cm²
For Area of Big (Shaded) Circle:
Diameter (d) = 10 cm
Radius = d ÷ 2 = 10/2 = 5 cm
For Area of Small (Non-Shaded) Circle
Formula:A = πr²
A = 3.14 × (5)² cm
A = 3.14 × 25 cm
A = 78.5 cm²
For The Area Of Shaded Region
Area of Big Circle - Area of Small Circle
78.5 cm² - 28.26 cm² = 50.24 cm²
Thus, The Area Of Shaded Region is
50.2 cm²
-TheUnknownScientist
Answer:
3rd option
50cm2
Step-by-step explanation:
50cm2
explanation is given above
Can someone help me out. Paying big points
Answer:
1) the quadrants go counter clockwise, Quadrant I is the upper right square, Quadrant II is the upper left square, Quadrant III is the lower left square, and Quadrant IV is the lower right square.
2) Quadrant II
3) Quadrant IV
4) Quadrant III
5) Quadrant I
6) Both would be on the horizontal axis
7) Both would be on the vertical axis
Step-by-step explanation:
Hope this helped!
A walkway forms one diagonal of a square playground. The walkway is 32 m long. How long is each side?
Answer:30.45751052, or 30.5
Step-by-step explanation:
since you know that the playground is a square, a diagonal would cut the square into 2 45-45-90 triangles, now that you know that information, there is a really easy way to solve the problem, the way i did it was i used the law of sines, which states that side a/sin(angle A)=side b/sin(angle B). so 32/sin(90)=30.7943... substitute that into the equation and you get 30.7943... =side b/sin(angle B). since you know that angle B =45 degrees take the sin of that and multiply it by 30.7943 to get the answer.
15 trading cards he wants to give to 5 friends. Each friend gets same number of trading cards
Answer:
Each friend gets 3 cards
Step-by-step explanation:
Divide 15 by 5 since he is splitting 15 cards with 5 friends.
:D
write 363 in the base-four system
Answer:
363 = 11223₄
Step-by-step explanation:
You want 363 written in base 4.
Base conversionWe can convert to base 4 by looking at the remainders from repeated division by 4:
363 ÷ 4 = 90 r 3
90 ÷ 4 = 22 r 2
22 ÷ 4 = 5 r 2
5 ÷ 4 = 1 r 1
1 ÷ 4 = 0 r 1
Writing the remainders in reverse order gives the base-4 number:
363 = 11223₄
3
Use the drawing tool(s) to form the correct answer on the provided graph.
The function f(x) is shown on the provided graph.
Graph the result of the following transformation on f(x).
Drawing Tools
Select
Line
Click on a tool to begin drawing
-10
-8
f(z) + 6
-6
4
-2
10-
8-
6
Delete
Undo
Reset
10 i need help with this
Start at -2 on the y-axis, count up until it is on a corner of the graph, then move 4 up on the y-axis and once to the right, making the fraction 4/1.
what is transformation ?Four various modifications that can be made to a point, line, or geometric object are referred to as transformations collectively. You must be able to identify which changes have been made and that each alteration has been made. The following guidelines for function translation and transformation: The function is shifted up by b units by F (x) + b. F (x) b causes the function to move downward. The expression f (x + b) causes the function to be moved left b units. Translation, reflection, rotation, and dilation are the four different types of transformations. Transform, reflect, or rotate the geometric shapes that are displayed on a coordinate plane. The transformation, often known as f: X X, is the name given to a function, f, that maps to itself.
given
-1 on the left x-axis and 4 on the right y-axis
Start at -2 on the y-axis, move up the y-axis six times, and you should arrive at 4. However, you must identify the first line in order to complete the puzzle.
Start at -2 on the y-axis, count up until it is on a corner of the graph, then move 4 up on the y-axis and once to the right, making the fraction 4/1.
Since you should be at 4, apply the formula rise/run 4/1 to ascend 6 on the y-axis.
To know more about transformations visit :-
https://brainly.com/question/29641135
#SPJ1
A study was conducted to see if students from public high schools were more likely to attend public colleges compared to students from private high schools. Of a random sample of 100 students from public high schools, 60 were planning to attend a public college. Of a random sample of 100 students from private high schools, 50 of them planned to attend a public college. The 90% confidence interval for the difference between the proportion of students planning to attend public college between students at public versus private high schools is (-0.0152, 0.2152). Select the correct interpretation of this confidence interval.
a. Reject the null hypothesis
b. Fail to reject the alternative hypothesis
c. Accept the null hypothesis
d. Fail to reject the null hypothesis
Answer:
B
Step-by-step explanation:
We are 90% confident the proportion of students planning to attend public colleges who attended public high schools is between 0.0152 lower than to 0.2152 higher than the proportion of students planning to attend public colleges who attended private high schools.
Plz help me!!!!! 3. &4 only!!!
Answer:
Step-by-step explanation:
3.
Note that
[tex]L_1 : 4x-y=10 \\ L_2: -2x+4y=16[/tex]
aren't parralel lines. So they are intersected in one point.
Answer: Number of solutions is ONE. The system is soluble
4.
Similarly to 3. Number of solutions is ONE. The system is soluble
Find each angle measure to the nearest degree
1) Find m.
5
S
R
5.7
T
please help, show work if possible :)
Answer:
RS=26.49 m;
ST =14.08 m;
m<R =28°
Step-by-step explanation:
PLZ HELP NO LINK PPPPLLLLLLLLLZZZZ
Answer:
its A
Step-by-step explanation:
Answer:
uhk3rbfghsfbhufevhjb
Step-by-step explanation:
give me brainlest
If m∠A = 29°, m∠B = 84°, and c = 14, what are the measures of the remaining sides and angle?
Answer:
m∠C = 67°, a = 7.37, b = 15.13
Step-by-step explanation:
There are 180° in a triangle. We know two angles in the triangle, so we can calculate the third angle.
Since this is not a right triangle, we will use the Law of Sines.
SinA/a = SinB/b = SinC/c
see image.