Answer:
3 in
Step-by-step explanation:
Helppp pleasee ........
Answer:
y=3
Step-by-step explanation:
y = - x +7
x=4
so y = -4 +7
y = 3
Simplify (evaluate):
3-3
Answer:
Its 0
Step-by-step explanation:
Hope this helps!
Y is directly proportional to X squared if Y equals 108 when X equals three find Y when X equals 7
The main answer to the question is:Y = 588 ,Given that Y is directly proportional to X squared, we can write the equation as Y = kX², where k is the constant of proportionality.
To find k, we use the given values of Y and X:
108 = k * 3²
k = 108/9
k = 12
Now that we know the value of k, we can use it to find Y when X equals 7:
Y = 12 * 7²
Y = 12 * 49
Y = 588
To find Y when X equals 7, given that Y is directly proportional to X squared and Y equals 108 when X equals 3, follow these steps:
1. Set up the proportionality equation: Y = k * X², where k is the constant of proportionality.
2. Plug in the values given in the problem (Y = 108 and X = 3) and solve for k: 108 = k * 3².
3. Simplify and solve for k: 108 = k * 9, so k = 108 / 9 = 12.
4. Now that you have the constant of proportionality (k = 12), plug in the new value for X (7) and solve for Y: Y = 12 * 7².
5. Simplify and find Y: Y = 12 * 49 = 588.
Y is 588 when X equals 7.
Y is directly proportional to X squared, so we used the given values to find the constant of proportionality (k) and then used it to calculate Y when X equals 7.
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what is the radius of the n = 80 state of the bohr hydrogen atom?
The radius of the n = 80 state of the Bohr hydrogen atom is 3.52 × 10² Å.
The formula to find the radius of an atom in the nth state of the Bohr model is:
r = n² × (0.529 Å) / Z
Where:
r = radius
n = state number
Z = atomic number (for hydrogen, Z = 1)
0.529 Å = Bohr radius
For n = 80,
the radius of the Bohr hydrogen atom can be calculated as:
r = (80)² × (0.529 Å) / 1r = 3.52 × 10² Å (rounded to three significant figures)
Therefore, the radius of the n = 80 state of the Bohr hydrogen atom is 3.52 × 10² Å.
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I'm doing my missing assignments, help me solve this please, and don't report me because it's not a test
Answer:
14.4 solved by doing 24(3/5)
Step-by-step explanation:
a ratio can be seen as division
3:5 = 3/5
Answer:
14.4
Step-by-step explanation:
As mentioned in the comments (24/5)*3 =
4.8 * 3 = 12 + 2.4 = 14.4
Another way:
24/5 = x/3
72 = 5x
x = 14 2/5 = 14.4
If my answer is incorrect, pls correct me!
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meridians of identify degrees east and west of the . these lines are / are not (circle) scientifically based. why/why not?
The meridians of longitude identify the degrees east and west of the Prime Meridian. These lines are scientifically based because they are determined by the Earth's rotation and provide a consistent and accurate system for navigation, mapping, and timekeeping.
1. The meridians of longitude are imaginary lines that run vertically from the North Pole to the South Pole on the Earth's surface.
2. The Prime Meridian, located at 0 degrees longitude, serves as the starting point for measuring degrees east and west.
3. The degrees of longitude are divided into 360 equal parts, with each degree representing one hour of the Earth's rotation.
4. The meridians of longitude allow us to determine specific locations on the Earth's surface and measure the angular distance from the Prime Meridian.
5. The scientific basis of meridians of longitude enables global coordination and facilitates activities such as international travel, communication, and scientific research.
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In four basketball games, Kevin averaged 15.5 points per game. How many total points did Kevin score in the four games?
Answer:
3.875 points
Step-by-step explanation:
15.5/4=3.875
Miranda brought a square frame that has an area of 30 inches.what is the approximate side length of the frame?
Answer:In this question , the area of square frame is given which is 30 square inches .
And we have to find the length of the square frame .
Here we use the area of square, which is
Substituting the value of given area and solving for length, we will get
TO get rid of square , we have to take square root to both sides.
THerefore the length of the square frame is approximately 5.48 inches .
Step-by-step explanation:
Which one describes the algebraic expression for the phrase, "twice a number decreased by 5 is greater than 12"? 2n - 5 = 12
2n - 5 < 12
12 + 5n > 2
2n - 5 > 12
Answer:
2n - 5 > 12\(\tt{ \green{P} \orange{s} \red{y} \blue{x} \pink{c} \purple{h} \green{i} e}\)
what are the foci of the ellipse given by the equation 225x^2 144y^2=32400
The foci of the ellipse given by the equation 225x^2 + 144y^2 = 32400 can be found by identifying the major and minor axes of the ellipse and using the formula for the foci coordinates. The foci of the ellipse are located at (±c, 0). Therefore, the foci are approximately (±15.87, 0).
The equation of the ellipse can be rewritten in standard form:
(225x^2)/32400 + (144y^2)/32400 = 1
We can identify the major and minor axes of the ellipse by comparing the coefficients of x^2 and y^2. The square root of the denominator gives the lengths of the semi-major axis (a) and semi-minor axis (b) of the ellipse.
a = sqrt(32400/225) = 24
b = sqrt(32400/144) = 18
The foci of the ellipse can be calculated using the formula:
c = sqrt(a^2 - b^2)
c = sqrt(24^2 - 18^2)
c = sqrt(576 - 324)
c = sqrt(252)
c ≈ 15.87
The foci of the ellipse are located at (±c, 0). Therefore, the foci are approximately (±15.87, 0).
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christa started her math homework at school after school she spent 4 more minutes on it altogether she spent 12 minutes on her homework how long did she work on the homework during class
10. If ACDE - AWXY with a scale factor of 4:3,
find the perimeter of AWXY.
13 + 29 + 22 = 64
64/x = 4/3
4x = 64 * 3
x = 192/4 = 48
answer = 48
Picnic:
A school is organizing a picnic for all its students. There is a
total of N students labeled from 1 to N in the school. Each student
i has a compatibility factor of Xi
It is time for the pi
A picnic is a fun way to get outside, spend time with family and friends, and enjoy a meal in the great outdoors. Picnics can be as simple or elaborate as you want them to be, and they can take place in a variety of locations, from your backyard to a local park or beach.
A school is organizing a picnic for all of its students, and there are a total of N students labeled from 1 to N in the school. Each student i has a compatibility factor of Xi. It is time for the picnic, and the school needs to decide how to group the students so that they can all have a good time together.
One way to approach this problem is to use a clustering algorithm to group the students based on their compatibility factors. There are many different clustering algorithms available, but one popular approach is k-means clustering.
K-means clustering works by dividing the data into k clusters, where k is a user-specified parameter. The algorithm iteratively updates the centroids of each cluster until the clusters converge.In the case of the picnic, we could use k-means clustering to group the students into k clusters based on their compatibility factors.
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Find the slope of a line through points (-7,-4) and (0,9)
PLEASE SHOW WORK
Answer:
-7/13
Step-by-step explanation:
-7 - 0 = -7
-4 - 9 = -13
Slope is - 7/13
Negative seven thirteenths
At the football game, 3 hamburgers and 6 soft drinks cost $24, and 4 hamburgers and 3 soft drinks cost $22. Which two equations can be used to determine the price of a hamburger and the price of a soft drink?
Let x represent the cost of a hamburger and y represent the cost of a soft drink.
Answer: it would be A
Step-by-step explanation:
x the cost in dollars of a hamburger and y the cost in dollars of a soft drink.
The cost of 4 hamburguers can be represented with this expression:
4x
And the cost of 6 soft drinks can be represented with this expression:
6y
The total cost for 4 hamburgers and 6 soft drinks is $34, you can write the following equation
3x+6y=24
The following expression represents the the cost of 3 soft drinks:
3y
According to the information given in the exercise, the total cost for 4 hamburgers and 3 soft drinks is $25. Then, the equation that represents this is:
4x+3y=22
1.Solve the following problems.
Wooden rod
Azeyah wants to buy a wooden rod to install curtains on the window of his room. The area of the window is (4x² + 2x - 12) cm². If the window's height is (2x + 4) cm, what is the length, in cm, of the wooden rod required?
The length of the wooden rod required is (2x - 4) cm. The length of the wooden rod required will be the same as the width of the window since the rod should span the entire width.
We need to use the formula for the area of a rectangle, which is length times width. In this case, the width is the height of the window, which is (2x + 4) cm. To find the length, we need to divide the area by the width: Length = Area / Width
Length = (4x² + 2x - 12) cm² / (2x + 4) cm
To simplify this expression, we can factor the numerator:
Length = [(2x - 2)(2x + 3)] cm² / (2x + 4) cm
Now we can cancel out the (2x + 4) in the numerator and denominator:
Length = (2x - 2)(2x + 3) / 1 cm
Length = 2x² - x - 6 cm
Therefore, the length of the wooden rod required is 2x² - x - 6 cm.
To find the length of the wooden rod required, we first need to determine the width of the window. Since the area of the window is given by the expression (4x² + 2x - 12) cm² and its height is (2x + 4) cm, we can find the width by dividing the area by the height.
(4x² + 2x - 12) cm² / (2x + 4) cm = width
We can factor the numerator to simplify the expression:
(2x - 4)(2x + 3) cm² / (2x + 4) cm = width
Now, we can cancel out the common factor (2x + 4) from the numerator and denominator:
(2x - 4) cm = width
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what is recommended as a way to ensure that you have included all possible answer choices in a survey?
One of the ways that are recommended to ensure that you have included all possible answer choices in a survey is to pilot test the survey.
This can be done by using a small sample of the target population before the actual survey is conducted.
The pilot test is done to help in identifying any errors in the survey questions, answer choices, or instructions.
The pilot test also helps to check the length and format of the survey to ensure that it is not too long and confusing.
To ensure that all possible answer choices are included, the researcher should ensure that the questions are comprehensive and cover all the areas that the survey intends to measure.
This requires a clear definition of the research problem and objectives.
The researcher should also have a clear understanding of the target population to ensure that the survey is appropriately designed and administered.
Additionally, the researcher should avoid biased questions and answer choices that may influence the response of the participants.
The answer choices should be exhaustive and exclusive to avoid ambiguity.
The use of open-ended questions may also be used to gather more detailed responses from the participants.
The survey should be structured in a logical manner to ensure that it is easy to complete by the participants.
In conclusion, pilot testing the survey, comprehensive question design, and avoiding biased questions are some of the ways to ensure that all possible answer choices are included in a survey.
Additionally, the survey should be structured logically and avoid ambiguity.
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A plane flies between two cities 1836KM apart it travels at an average speed of 850 km/h calculate how long the flight takes give your answer in hours
ILL BRAINLIST 5 times do this for me pllsss I'll make u expert I'm rlly confused on this don't get it
Answer:
a) Maria has d+f
b) Ivan has 3d+ (f-7)
c) 5d+20f
Step-by-step explanation:
can you make two triangles that are not congruent that have three pairs of congruent angles?
if two triangles have three pairs of congruent angles, then they must be congruent to each other by the Angle-Angle-Angle (AAA) congruence theorem, and thus cannot be non-congruent.
No, it is not possible to make two triangles that are not congruent and have three pairs of congruent angles. This is because if two angles of a triangle are congruent, then the third angle must also be congruent by the Angle Sum Theorem, which states that the sum of the angles in a triangle is always 180 degrees. If two triangles have three pairs of congruent angles, then all three angles in each triangle are congruent, meaning they have the same measure. However, this does not guarantee that the sides of the triangles are congruent. In order for two triangles to be congruent, they must have the same angle measures as well as the same side lengths. Therefore, if two triangles have three pairs of congruent angles, then they must be congruent to each other by the Angle-Angle-Angle (AAA) congruence theorem, and thus cannot be non-congruent.
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Help!!!
The actual diameter of Uranus is 31,250 miles. In a scale drawing of the solar system, the diameter of Uranus is
125 centimeters.
What scale was used to make the model?
1 centimeter = 500 miles
1 centimeter = 250 miles
1 centimeter = 125 miles
1 centimeter = 175 miles
\(31250 \div 500 = 62.5\)
\(31250 \div 250 = 125\)
\(31250 \div 125 = 250\)
\(31250 \div 175 = 178.5\)
The model should be scaled so that 1 centimeter equals 250 miles.
The scale that need to be used to make the model is 1 centimeter equals 250 miles.
Calculation of the scale:Since The actual diameter of Uranus is 31,250 miles. In a scale drawing of the solar system, the diameter of Uranus is 125 centimeters.
So, the scale should be
\(= 31250 \div 125\)
= 250 miles
Hence, The scale that need to be used to make the model is 1 centimeter equals 250 miles.
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{10, 11, 12, ..., 55}
How many numbers in the above set are divisible by 2 but not by 10?
(A) 17
(B) 18
(C) 19
(D) 21
Considering concepts of divisibility, the amount of numbers in the set that are divisible by 2 but not by 10 is:
(C) 19.
What are the rules for division by 2 and by 10?Numbers that finish in 0, 2, 4, 6, and 8 are divisible by 2, that is, even numbers are divisible by 2.Numbers that finish in 0 are divisible by 10. Hence, every number that is divisible by 10 is also divisible by 2.The data-set has (55 - 10) + 1 = 46 numbers, hence 23 are divisible by 2. 20, 30, 40 and 50 are also divisible by 10, that is, 4 numbers have to be removed, hence the amount is:
23 - 4 = 19.
Which means that option C is correct.
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Part 1: What is the rate of rice to quarts of water for this recipe that uses 4 pounds of rice and 5 quarts of boiling water?
Given:
A recipe uses 4 pounds of rice and 5 quarts of boiling water.
To find:
The rate of rice to quarts of water for this recipe.
Solution:
We need to divide the amount of rice by amount of water to get the rate of rice to quarts of water for this recipe.
\(\text{Required rate}=\dfrac{\text{Rice in pounds}}{\text{Water in quarts}}\)
\(\text{Required rate}=\dfrac{4}{5}\)
\(\text{Required rate}=0.8\)
Therefore, the rate of rice to quarts of water for this recipe is 0.8.
What is the solution to this equation?
9 ^x- 1 = 2
O A. 1
O B. 2
O C.
1/2
OD. -1/2
 7a) Determine the measure of the missing angle.
The measure of the missing angles are
x = 135°
y = 45°
What is a octagon?An Octagon is a polygon that has eight sides
To calculate the measure of the missing angle in the octagon, we use the formula below
Formula:
x = (n-2)180/8..............................Equation 1Where:
x = Interior angle of the octagonn = Number of sidesFrom the diagram,
n = 8 sidesSubstitute these values into equation 1
x = (8-2)180/8x = 135°Also,
x+y = 180y = 180-x.................... Equation 2Substitute the value sof x into equation 2
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Which of the following is an example of quantitative data?A. North America is moving across Earth's surface several centimeters per yearB. the river has flooded a low-lying areaC. the volcano is releasing much steamD. volcanoes are dangerousE. when held, one rock feels heavier than another rock
The example of quantitative data among the given options is option A. North America is moving across Earth's surface several centimeters per year
Quantitative data refers to numerical or measurable information. In option A, the statement provides specific numerical measurements by stating that North America is moving across Earth's surface several centimeters per year. This information can be quantified and measured, making it an example of quantitative data.
Options B, C, D, and E do not provide numerical or measurable information. They describe qualitative characteristics or observations that cannot be easily quantified or measured.
B. The river has flooded a low-lying area describes a qualitative observation of a flood occurrence.
C. The volcano is releasing much steam describes a qualitative observation of steam release.
D. Volcanoes are dangerous makes a general statement without providing specific numerical information.
E. When held, one rock feels heavier than another rock is a subjective comparison and does not provide specific quantitative measurements.
Therefore, option A is the example of quantitative data as it provides numerical information that can be measured and quantified.
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Sean is conducting an experiment with an isotope of a particular element that has a half-life of 4 hours. He begins with a sample of the isotope with a mass of 92 grams. He then measures the mass of the object every hour. What is the approximate mass of the sample after 20 hours?
As per the given half life the approximate mass of the sample after 20 hours is 0.03125
The term half life is defined as the interval of time required for one-half of the atomic nuclei of a radioactive sample to decay.
Here we have know that Sean is conducting an experiment with an isotope of a particular element that has a half-life of 4 hours.
And here we also know that he begins with a sample of the isotope with a mass of 92 grams and then measures the mass of the object every hour.
Then the approximate mass of the sample after 20 hours is calculated as,
=> 20/4 = 5
Then the value after 5 hours of time is calculated as,
=> 1/2⁵
=> 0.03125
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unit rate 232 miles in 4 hours
Answer:
58 miles per hour
Step-by-step explanation:
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Ten six graders will each eat 1/4 of a pizza. How many whole pizza pies need to be
ordered for the ten students? Show your work
Answer:
3 whole pizzas
Step-by-step explanation:
\(10 \times \frac{1}{4} = \frac{10}{4} = \frac{5}{2} = 2 \frac{1}{2} \)
So 3 whole pizzas will need to be ordered.
Answer:
2 and a half pies
Step-by-step explanation:
ten sixth graders eat 1/4 each, therefore 4 kids eat 1 whole pie. similarly, 8 kids eat two whole pies, since two kids are remaining they eat 2/4 of a pie.
which can also be put in as 1/2. this means they eat half a pie. and that is how altogether it is 2 and a half pies.
hope this helps!
Determine whether the graph of the equation is symmetric with respect to the x-axis, the y-axis, and/or the origin.
y = 4x² +3
If rotating a graph around a point leaves the graph intact, the graph is said to be symmetric with respect to that point.
How to find graph is symmetric?Since anything that is mirrored around a horizontal line will fail the Vertical Line Test, no function can by definition be symmetric about the x-axis (or any other horizontal line).
If rotating a graph around a point leaves the graph intact, the graph is said to be symmetric with respect to that point. When two points are always present on a graph, the graph is symmetric with respect to the origin.
If there is a point (a, b) on the graph for every (a, b) on the graph, then the graph is said to be symmetric with respect to the x axis, and f(x, y) = f(x, y).
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