Step-by-step explanation:
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The images below show a picture of ricoffy tin container with no dimensions indicated.the container is 2,5 times smaller than what it is in reality. Measure the diameter of the tin in mm and write down the real diameter in mm
The diameter of the tin in the picture is \(3d/5\) where 'd' is the diameter of the tin in reality.
What is the measurement of the diameter?Determining the diameter of tin:
Since there is no indication of dimensions, represent the diameter with a variable 'd' and find the diameter of the tin according to the given condition in the problem.
Here we have assumed that the diameter of the tin is 'd' in reality and the diameter of the tin picture can be calculated as given below.
Here we have
A ricoffy tin container with no dimensions indicated
Let d and h be the diameter and height of the tin
Given that the container is 2/5 times smaller than d
then the diameter of the tin in the picture \(= d - 2/5(d)\)
\(= [5d - 2d]/5 = 3d/5\)
Therefore, The diameter of the tin in the picture is \(3d/5\) where 'd' is the diameter of the tin in reality.
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geometry
Thought a given point draw four lines. How many angles are formed? Label and read all the angles.
Angles and lines come in many distinct varieties in geometry.
How many angles are there in lines and angles?Geometry has several different kinds of lines and angles. The six different types of angles include reflex angle, complete angle, straight angle, acute angle, and obtuse angle. The various sorts of lines are transverse, parallel, perpendicular, vertical, horizontal, and vertical lines.
There are three ways to name an angle: by the vertex, by the angle's three points (the middle point must be the vertex), or by a letter or number put inside the angle's aperture.
You can create your address block for letters, envelopes, and other mail merges using Label Lines, a collection of fields. Use Label Lines rather of Acknowledgement, Company, and Address lines to skip blank lines in your labels and address blocks.
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This diagram shows the blue prints a contractor drew for a ramp. In order for the ramp to meet safety regulations, the angle created by the bottom of the ramp and the ground should be no more than 18°.
How many degrees should the contractor lower the ramp by in order to meet safety regulations?
Enter your answer, rounded to the nearest tenth, in the box.
The contractor should lower the ramp by approximately 4.62° to meet safety regulations.
We have,
To determine the angle created by the bottom of the ramp and the ground, we can use the trigonometric function of sine.
In the given triangle, the height is 6 ft and the base is 16 ft.
The angle we want to find is opposite the height (let's call it θ).
The sine of an angle is defined as the ratio of the opposite side to the hypotenuse.
sin(θ) = opposite/hypotenuse
sin(θ) = 6/16
sin(θ) = 0.375
To find the angle θ, we can take the inverse sine (also known as arcsine) of 0.375:
θ = arcsin(0.375)
θ ≈ 22.62°
To meet safety regulations, the angle should be no more than 18°. Therefore, the contractor needs to lower the ramp by:
22.62° - 18° ≈ 4.62°
Thus,
The contractor should lower the ramp by approximately 4.62° to meet safety regulations.
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A florist wants to determine if a new additive helps
extend the life of cut flowers longer than the original
additive does. The florist selects 20 flowers of different
types and puts each flower in its own vase with the
same amount of water. She positions the vases so they
also receive the same exposure to light. She numbers
the flowers 1-20, and places these numbers on equal-
sized slips of paper. The slips are placed in a hat and
mixed thoroughly. A slip is chosen and the corresponding
flower receives the new additive. After the hat is shaken,
another slip is chosen and the corresponding flower also
receives the new additive. This procedure continues until
10 flowers have been assigned to receive the new
additive. The remaining 10 flowers receive the original
additive.
Is this a randomized block design for this experiment?
O Yes, each flower is randomly assigned to the
treatments.
OYes, the flowers were placed in their own vases, and
received the same amount of water and light.
O No, only 20 flowers were used in the experiment.
O No, the flowers were not put into groups first and then
randomly assigned the two additives.
The statement fourth "No, the flowers were not put into groups first and then randomly assigned the two additives would be correct.
What is random experiment?Any well-defined method that yields an observable outcome that cannot be precisely predicted in advance is referred to as a random experiment. To avoid any ambiguity or surprise, a random experiment must be properly defined.
We have:
Total number of flowers selected = 20
And puts in each vase with same amount of water.
10 flowers have been assigned to receive the new additive.
The remaining 10 flowers receive the original additive.
Based on the data, this is not a randomized block design for the experiment because the flowers were not put into groups first and then randomly assigned the two additives.
Thus, the statement fourth "No, the flowers were not put into groups first and then randomly assigned the two additives would be correct.
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You have a 7-by-5-inch photo of the math club that must be reduced to a size of 4.2 inches by 3 inches for the school yearbook. What percent does the photo need to be reduced to in order for it to fit in the allotted space?
Answer: 64%
Step-by-step explanation:
Given: Size of photo = 7-by-5-inch
Area of photo = 7 x 5 = 35 sq. inches [ Area = Length x width]
Required size = 4.2 inches by 3 inches
Area of required size = 4.2 x 3 =12.6 sq. inches
Area reduced =Area of photo - Area of required size = 35-12.6 =22.4 sq. inches
Percentage of the photo need to be reduced to in order for it to fit in the allotted space
\(=\dfrac{22.4}{35}\times100=64\%\)
Percentage of the photo need to be reduced to in order for it to fit in the allotted space = 64%
H
PLS HELP ASAP !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
half of the difference of nine and e is the same as four less than e
"half of the difference of nine and e" can be written as
\(\frac{1}{2}(9-e)\)and "four less than e" is
\(4-e\)If they are the same, we can write:
\(\begin{gathered} \frac{1}{2}(9-e)=4-e \\ 9-e=2(4-e) \\ 9-e=8-2e \\ -e+2e=8-9 \\ e=-1 \end{gathered}\)The value of e is e=-1.
Two angle measures of this triangle are 60°. Which type of triangle is it? O A. obtuse O B. scalene O C. equilateral O D. right
plz need help now :(
Answer:
equilateral
Step-by-step explanation:
all the sides are equal
Determine the values of x in the equation x2 = 64.
Please help due Friday
Choices for 1. Is , is not a linear function
Choices for 1. Even , odd , none
Brainliest!!
Answer:
It is a linear function because the degree is 1. The function is also neither odd nor even.
Answer:
x = y + 8 is a linear function becuase it can be in the form: y = mx + c
For a function to be even it is said that
f(-x) = f(x) so:
x = y + 8
y = x - 8
so f(-x) is:
y = - x - 8
Function is not even.
For a function to be odd we need f(-x) = - f(x) so:
Get - f(x) :
y = x - 8
- y = - x + 8
Function is not odd.
So the function is neither odd nor even.
Please help. And hurry.
Answer: y=7/4x
Step-by-step explanation:
the slope is 7/4
Step-by-step explanation:
help with what ? what do you need ?
the slope of the line ? the line equation ?
if that is the case :
remember, the slope is the ratio
y coordinate difference / x coordinate difference
when going from one point to another on the line.
for that I always recommend to find points with integer coordinates.
we find e.g.
(0, 0) and (12, 21)
going from (0, 0) to (12, 21)
x changes by 12 (from 0 to 12).
y changes by 21 (from 0 to 21).
so, the slope is
+21/+12 = 21/12 = 7/4
for the line equation remember the general form :
y = ax + b
a being the slope, b being the y-intercept (the y value when x = 0).
and so, the line equation is
y = (7/4)x + 0 = (7/4)x = 7x/4
since the line goes through (0, 0), this gives us the y-value, when x = 0 : also 0.
Using distributive property write 42+63
Answer:
7(6+9)
Step-by-step explanation:
Invent examples of data with
(a) SS(between) = 0 and SS(within) > 0
(b) SS(between) > 0 and SS(within) = 0
For each example, use three samples, each of size 5.
The sample of given data is Sample 1: 1, 2, 3, 4, 5 Sample 2: 6, 7, 8, 9, 10
b)Sample 1: 1, 2, 3, 4, 5 Sample 2: 6, 7, 8, 9, 10
(a) An example of data with SS(between) = 0 and SS(within) > 0 could be the following:
Sample 1: 1, 2, 3, 4, 5
Sample 2: 6, 7, 8, 9, 10
Sample 3: 11, 12, 13, 14, 15
In this example, the means of each sample are all different from each other, but the grand mean (8) is equal to the mean of each sample. Therefore, there is no variability between the means of the samples, resulting in SS(between) = 0. However, there is still variability within each sample, resulting in SS(within) > 0.
(b) An example of data with SS(between) > 0 and SS(within) = 0 could be the following:
Sample 1: 1, 2, 3, 4, 5
Sample 2: 6, 7, 8, 9, 10
Sample 3: 11, 12, 13, 14, 15
In this example, the means of each sample are all the same (8), but the values within each sample are all different from each other. Therefore, there is variability between the means of the samples, resulting in SS(between) > 0. However, there is no variability within each sample, resulting in SS(within) = 0.
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If the cost per person to rent a van varies inversely with the number people sharing the cost, what table could represent a situation
Answer:
You can make a table that starts with the cost for one person then add below the cost for 2,3,4 etc
Step-by-step explanation:
2.1. Provide a general rule to describe the relationship between the dates of spread and number of people infected infected.
The relationship between the dates of spread and the number of people infected can vary depending on various factors such as the infectiousness of the disease, the effectiveness of containment measures, population density, and individual behaviors.
However, there is a general rule that can describe the relationship:As the dates of spread progress, the number of infected individuals tends to increase initially, reaching a peak, and then gradually decreasing over time.
This pattern is often referred to as the epidemic curve or the epidemiological curve. In the early stages of an outbreak, the number of cases may grow rapidly as the disease spreads through a susceptible population. This rapid increase is often influenced by factors such as the contagiousness of the disease, population density, and social interactions.
As containment measures, such as vaccination campaigns, public health interventions, and behavioral changes, are implemented, the rate of new infections may start to decline. This can lead to a peak in the number of cases, after which the curve gradually decreases as the disease is brought under control and fewer susceptible individuals remain.
It's important to note that the specific shape, duration, and magnitude of the epidemic curve can vary significantly depending on the disease and the effectiveness of the response measures implemented. Additionally, emerging variants, changes in behavior, and other factors can impact the trajectory of the epidemic curve.
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Match each polynomial on the left with its two factors on the right.
x³-27
x² +27
x+3
x-3
x² + 3x +9
x² + 3x-9
x²-3x+9
x²-3x-9
Answer:
hi
Step-by-step explanation:
\(x {}^{3} - 27 = {x}^{3} - {3}^{3} \\ = (x - 3)( {x}^{2} + 3x + 9) \\ {x}^{3} + 27 = {x}^{3} + {3}^{3} \\ = (x + 3)( {x}^{2} - 3x + 9)\)
This may be hard to put together, but I need help with an angle equation. I'm looking for example equations and how to do these types of equations. *please note that this equation is completely random and probably ends with an ugly number. it's just an example of a type of problem*
Example: (2x - 4) x=7 so (2x (x=7) - 4) =18
Steph curry makes 90.3% of his free throws
If he attempts 3 free throws, what is the probability he makes the first one and misses the second and third?
Answer:
The probability is roughly 0.85%.
Step-by-step explanation:
This situation requires the combination of the probabilities in question.
The probability that Steph will make a throw is 90.3%, and from this we can conclude that the amount missed, or the probability of missing will be the remaining, or \(100\%-90.3\%=9.7\%\).
Let's combine the probabilities, remembering a percentage simply means a number over 100:
\(P=\frac{90.3}{100} *\frac{9.7}{100}*\frac{9.7}{100}=\frac{90.3*9.7*9.7}{100*100*100}\\\\P=\frac{8496.327}{1 000 000}=0.008496327\\\\P(\%)=0.008496327*100=0.8496327\%\)
THANKS! Everyone if you answer this
Answer:
Down Below .
Step-by-step explanation:
A. Nickel and Copper.
B. The average temp is 1034.8575. I got that by adding all the temps then dividing it by 4
Given: A = {(0, 0), (2, 1), (3, 1.5),(4,2),...) Is A a function and why?
A. No, each set of ordered pairs in this list has the same range element.
B. Yes, there is more than one ordered pair in this list.
C. Yes, no two ordered pairs in this list has a repeat of the domain element.
D. No, there is a limited number of ordered pairs in this list.
Answer:
C. Yes, no two ordered pairs in this list has a repeat of the domain element.
Step-by-step explanation:
An equation that produces a set of ordered pairs defines a function, but it needs to be a proper function!
A function is a set of ordered pairs in which no two different ordered pairs have the same x -coordinate. Which means that answer C is correct.
Answer:
C. Yes, no two ordered pairs in this list has a repeat of the domain element.
Step-by-step explanation:
ODY 2022
The equation 2x + 3 = 5 is modeled below
+
+
A
Х
+
(+
(+
What is the first step in finding the value of x?
Add 3 to each side of the model
Subtract 3 from each side of the model
Add 5 to each side of the model
Subtract 5 from each side of the model
The first step will be subtract 3 from each side of the model.
Explanation:By subtracting 3 from each side of the model, the 3 in the Right Hand Side will be cancelled, and the model will be:
2x = 5 - 3 = 2
Then the next step will be dividing 2 from each side of the model.
Solution:2x + 3 = 5
By subtracting 3 to both the sides, we get
2x + 3 - 3 = 5 - 3
or, 2x = 2
By dividing 2 to both the sides, we get
2x/2 = 2/2
or, x = 1
Answer:The value of x is 1.
Identify the three triangle theorems explain what the theorem states
The three triangle theorems include the following:
The Pythagorean TheoremThe Law of CosinesThe Law of Sines What do the triangular theorems state?The positions of the theorems are as follows:
The Pythagorean Theorem states that in a right triangle, the sum of the squares of the lengths of the two shorter sides (the legs) is equal to the square of the length of the longest side (the hypotenuse). This can be written as a^2 + b^2 = c^2, where c is the length of the hypotenuse and a and b are the lengths of the legs.
The Law of Cosines states that in any triangle, the square of the length of a side is equal to the sum of the squares of the lengths of the other two sides, minus twice the product of the length of one side times the cosine of the angle between the other two sides. This can be written as c^2 = a^2 + b^2 - 2ab * cos(C)
The Law of Sines states that the ratio of the length of a side of a triangle to the sine of the angle opposite that side is the same for all three sides of the triangle. This can be written as a/sin(A) = b/sin(B) = c/sin(C)
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equations with variables on both sides, evaluate each equation W - 20 = 6w 2n -5 = 7n 3 (f + 5)= 13+5f2(6c + 1 ) = 4 (c - 5) - 27 (a - 2) = 5( a + 2 )
(1). The given expression :
\(w-20=6w\)Simplify :
\(\begin{gathered} w-20=6w \\ subtract\text{ w on both side of equation} \\ w-w-20=6w-w \\ 5w=-20 \\ \text{divide both side by 5} \\ \frac{5w}{5}=\frac{-20}{5} \\ w=(-4) \end{gathered}\)Answer : w = (-4)
(2). the given expression :
\(\begin{gathered} 2n-5=7n \\ subtract\text{ 2n from both side of the equation} \\ 2n-2n-5=7n-2n \\ -5=5n \\ \text{Divide both side by 5,} \\ \frac{-5}{5}=\frac{5n}{5} \\ n=-1 \end{gathered}\)Answer : n = -1
(3). The given expression :
\(\begin{gathered} 3\text{ (f+5)=13+5f} \\ \text{simplify the brackets} \\ 3f+15=13+5f \\ \text{subtract 3f from both side} \\ 3f-3f+15=13+5f-3f \\ 15=13+2f \\ \text{subtract 13 from both side} \\ 15-13=13-13+2f \\ 2f=2 \\ f=1 \end{gathered}\)Answer : f=1
(4). The given expression is :
\(\begin{gathered} 2(6c+1)=4(c-5)-2_{} \\ \text{Simplify the brackets} \\ 12c+2=4c-20-2 \\ \text{subtract 4c from both side and simplify} \\ 12c-4c+2=4c-4c-22 \\ 8c+2=-22 \\ \text{subtract 2 f rom both side} \\ 8c+2-2=-22-2 \\ 8c=-24 \\ \text{Divide both side by 8} \\ \frac{8c}{8}=\frac{-24}{8} \\ c=(-3) \end{gathered}\)Answer : c = -3
(5). The given expression :
\(\begin{gathered} 7(a-2)=5(a+2) \\ \text{simplify the brackets} \\ 7a-14=5a+10 \\ \text{Subtract 5a on both side} \\ 7a-14-5a=5a-5a+10 \\ 2a-14=10 \\ \text{add 14 on both side} \\ 2a-14+14=10+14 \\ 2a=24 \\ Divide\text{ both side by 2,} \\ \frac{2a}{2}=\frac{24}{2} \\ a=12 \end{gathered}\)Answer : a=12
Find the missing number in this proportion. 24/36= 8/?
Answer: i think the answer is 9
Step-by-step explanation:
What is the perimeter of the shape below, given a = 8.16, b = 234, C = 461,0 =
2.56, e = 8.00, f = 2.51, g = 9.81
Answer: It’s unfinded
Step-by-step explanation:
A bag of pennies weighs 5.1 kilogram. Each penny weighs 2.5 grams. About how many
pennies are in the bag?
20
200
2.000
20,000
Answer: would be about 2000
56 x 48 =
29x31=
73 x 25 =
95 x 43 =
67 x 83 =
29 x 56 =
40 x81=
74 x 69 =
Someone needs to solve this !!
Find the measure of the arc. mAC=
Answer:
90°
Step-by-step explanation:
There is a little symbol at the origin showing it to be a right angle creating that arc
You are interested in finding a 95% confidence interval for the mean number of visits for physical therapy patients. The data below show the number of visits for 11 randomly selected physical therapy patients. Round answers to 3 decimal places where possible.
13 5 10 11 26 20 18 18 24 23 5
a. To compute the confidence interval use a
t
Correct distribution.
b. With 95% confidence the population mean number of visits per physical therapy patient is between
and
visits.
c. If many groups of 11 randomly selected physical therapy patients are studied, then a different confidence interval would be produced from each group. About
percent of these confidence intervals will contain the true population mean number of visits per patient and about
percent will not contain the true population mean number of visits per patient.
For finding a 95% confidence interval:
a. To compute the confidence interval, use a t distribution with 10 degrees of freedom.b. With 95% confidence, the population mean number of visits per physical therapy patient is between 13.011 and 19.249 visits.c. About 95% of these confidence intervals will contain the true population mean number of visits per patient and about 5% will not contain the true population mean number of visits per patient.How to solve confidence interval?a) The sample mean is x = 16.13.
The sample standard deviation is s = 6.948.
The degrees of freedom are df = 10.
The critical value of t for a 95% confidence interval is t = 2.228.
The margin of error is ME = t × s/√n = 2.228(6.948)/√11 = 4.263.
The 95% confidence interval is x ± ME = 16.13 ± 4.263 = (11.867, 20.393).
b) The 95% confidence interval is (11.867, 20.393).
This means that we are 95% confident that the true population mean number of visits per physical therapy patient is between 11.867 and 20.393 visits.
c) This is because the confidence interval is a range of values that is likely to contain the true population mean. If many samples of the same size are taken from the same population, then about 95% of the confidence intervals from these samples will contain the true population mean.
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Sally is selling strawberries at the farmer’s market. She sells 5 boxes in the morning, and then sells half of the remaining boxes of strawberries by the end of the day. If Sally ended up with 9 boxes of strawberries left at the end of the day, how many boxes did she start with
Answer:
23 boxes
Step-by-step explanation:
x=5+9*2
Answer:
23
Step-by-step explanation:
I did this backwards.
Since we know that Sally ended up with 9 boxes of strawberries, and sold half of the remaining strawberries, she must've had 18 boxes. Adding the 5 boxes from the beginning gets us 18+5=23
You also could've wrote an equation.
x=boxes of strawberries
x the total amount of boxes in the beginning of the day
x-5 the 5 boxes she sold
(x-5)/2 half of the remaining boxes sold
(x-5)/2=9 the amount left