Answer:
\(+, -, \times\)
Step-by-step explanation:
This is one of those questions where trial and error are used.
Trying out different combos until I get the right answer:
\(8-6+4\times2=10\)
\(8+6-4\times2=6\)
Nice! The correct answer is \(+, -, \times\)
Convert 8x - 6y + 12 = 0 into Slope-Intercept Form.
Answer:
y = \(\frac{4}{3}\) x + 2
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Given
8x - 6y + 12 = 0 ( subtract 8x + 12 from both sides )
- 6y = - 8x - 12 ( divide terms by - 6
y = \(\frac{-8}{-6}\) x + 2 , that is
y = \(\frac{4}{3}\) x + 2 ← in slope- intercept form
Find the arc length and s = 12 311 3. A comet with a circular orbit is 3 light years from Earth. An astronomer observed that it moved at an angle of 65 degrees. How many light years did the comet
The arc length of a circle can be calculated using the formula: arc length = radius * central angle. In this case, the comet is 3 light years from Earth, and the astronomer observed it moving at an angle of 65 degrees.
To find the arc length, we need to convert the angle from degrees to radians since the formula requires the angle to be in radians. We know that 180 degrees is equivalent to π radians, so we can use the conversion factor of π/180 to convert degrees to radians. Thus, the angle of 65 degrees is equal to (65 * π)/180 radians.
Now, we can calculate the arc length using the formula:
arc length = radius * central angle
Substituting the given values:
arc length = 3 light years * (65 * π)/180 radians
Simplifying the expression:
arc length = (195π/180) light years
Therefore, the arc length traveled by the comet is approximately (1.083π/180) light years.
Note: The exact numerical value of the arc length will depend on the precise value of π used in the calculations.
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what is 2.1x10 to the 3rd power in standard form?
Answer:
2.1 x 10^3
Step-by-step explanation: To write a linear expression in standard form, rearrange the terms in alphabetical order. It is already in its standard form.
An equilateral triangle is to have a perimeter of at least 27 feet. how many feet must each side be. PLEASE ANSWER WOTHER 50
Answer:
4 th option
Step-by-step explanation:
because 27 feet /3=9 feet
you plan to purchase a plane ticket $299.00and you are going to use a discount code to receive 15% off
Answer: The answer is $254.15
PLEASE I NEED THIS ASAP ITS SO MUCH POINTS
Answer: decimal : 1, fraction: 9/1000, decimal : 0.5, fraction: 17/100, decimal 1
Step-by-step explanation:
The specific heat of brass is 0.38 J/g*K, aluminum is 0.91 J/g*K, lead is 0.13 J/g*K, and water is 4.187 J/g*K.
Required:
Write equation in variable format.
The equation relating specific heat (C), mass (m), temperature change (ΔT), and heat energy (Q) is Q = C * m * ΔT. Using this equation, we can calculate the amount of heat energy transferred when a substance undergoes a temperature change.
The equation Q = C * m * ΔT represents the relationship between heat energy (Q), specific heat (C), mass (m), and temperature change (ΔT). In this equation, Q is the heat energy transferred in joules, C is the specific heat in J/g*K, m is the mass of the substance in grams, and ΔT is the change in temperature in Kelvin.
To calculate the amount of heat energy transferred, we multiply the specific heat by the mass and the temperature change. For example, if we have 100 grams of brass and we want to raise its temperature by 10 degrees Celsius, we can use the specific heat of brass (0.38 J/g*K) in the equation.
Q = (0.38 J/g*K) * (100 g) * (10 K) = 380 J
This means that 380 joules of heat energy would be transferred to the brass to raise its temperature by 10 degrees Celsius.
Similarly, we can use this equation to calculate the heat energy transferred for other substances such as aluminum, lead, or water, by substituting their respective specific heat values, mass, and temperature change into the equation.
In summary, the equation Q = C * m * ΔT allows us to determine the amount of heat energy transferred when a substance undergoes a temperature change, based on its specific heat, mass, and temperature difference. By using this equation, we can calculate the heat energy required or released during various heating or cooling processes.
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an activity has an optimistic time of 15 days, a most likely time of 18 days, and a pessimistic time of 27 days. what is the expected time?
The expected time (also known as the expected value or the mean) Is approximately 12.5 days.
The expected time for an activity is the average time it is likely to take, taking into account its optimistic, most likely, and pessimistic estimates. The three-point estimate formula is used to calculate the expected time by weighting the most likely estimate four times as much as the optimistic and pessimistic estimates. In this case, the optimistic time is 15 days, the most likely time is 18 days, and the pessimistic time is 27 days. By plugging these values into the formula, the expected time is calculated to be 12.5 days. This means that, on average, the activity is likely to take 12.5 days to complete.
The expected time (also known as the expected value or the mean) can be calculated using the three-point estimate formula, which is:
Expected time = (Optimistic time + 4 * Most likely time + Pessimistic time) / 6
Plugging in the values, we get:
Expected time = (15 + 4 * 18 + 27) / 6 = (75) / 6 = 12.5
So the expected time for this activity is 12.5 days.
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beth needs to fertilize her flowerbed, which is in the shape of a regular pentagon. a bag of fertilizer states that it can fertilize up to square feet, but beth is not sure how many bags of fertilizer she should buy. beth does know that each side of the pentagon is feet long. copy the diagram of the regular pentagon below onto your paper. find the area of the flowerbed and tell beth how many bags of fertilizer to buy. explain how you found your answer.
Beth should buy about 0.0433 bags of fertilizer, which is equivalent to about 1/23 of a bag. Since she cannot buy a fraction of a bag, she should purchase one bag of fertilizer to ensure she has enough to cover her flowerbed.
To find the area of the pentagon, we can split it into five congruent triangles. To find the area of each triangle, we can use the formula for the area of a triangle:
Area of each triangle = (1/2) * (base) * (height)
where the base of the triangle is "s" and the height can be found by dividing the triangle into two right triangles, each with a base of s/2 and hypotenuse s. Using the Pythagorean theorem, we can find the height of the triangle to be:
\(height = \sqrt{(s^2 - (s/2)^2)} = \sqrt{(3/4)} * s\)
Thus, the area of each triangle is:
Area of each triangle = \((1/2) * s * \sqrt{(3/4)} * s = (\sqrt{(3)/4)} * s^2\)
The total area of the pentagon is therefore:
Area of pentagon = 5 * Area of each triangle
\(= 5 * (\sqrt{(3)}/4) * s^2 = (5/4) * \sqrt{(3)} * s^2\)
To find the number of bags of fertilizer needed, we divide the area of the flowerbed by the area covered by each bag:
Number of bags = (Area of pentagon) / (Area covered by each bag)
We don't know the area covered by each bag, but we do know that each bag can cover up to 500 square feet. So the number of bags needed is:
Number of bags = (Area of pentagon) / 500
Substituting the expression we found for the area of the pentagon, we get:
Number of bags = \([(5/4) * \sqrt{(3)} * s^2] / 500\)
Since we know that each side of the pentagon has a length of "s", we can substitute s = 2 into the expression above to get the number of bags needed for Beth's flowerbed. This gives us:
Number of bags \(= [(5/4) * \sqrt{(3)} * (2)^2] / 500 = 0.0433\)
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34. using a centimeter rule having 1-mm scale divisions, you find the sides of a rectangular piece of plywood to be 3.54 cm and 4.85 cm. the calculated area is 17.1690 cm2. in significant figures the results is correctly expressed as; a) 17.0 cm2, b) 17.2 cm2, c) 17.17 cm2, d) 17.169 cm2.
The calculated area is 17.1690 cm2 in significant figure it is 17.2 cm.
Area is the quantity that expresses the extent of a region on the plane or on a curved surface. The area of a plane region or plane area refers to the area of a shape or planar lamina, while surface area refers to the area of an open surface or the boundary of a three-dimensional object.
This calculation for the area is length times length plus three points
3.54 times 4.85 centimeters
Significant figures of a number in positional notation are digits in the number that are reliable and necessary to indicate the quantity of something
We are going to use the fewest significant figures possible, therefore there is no big role in this.
These are both three significant figures, then.
Therefore, 17.2 square centimeters would be our right answer, which would be three significant figures.
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add and reduce to lowest terms: 5 1/4+4 5/6
Answer:
−6.7 + (−2 1/ 5 )
Step-by-step explanation:
−6.7 + (−2 1/ 5 )
Answer:
The answer is 10 1/12
Step-by-step explanation:
Hope this helps!
What 3-dimensional solid has a circular cross section when cut parallel to the base and a rectangular cross section when cut perpendicular to the base? A) cylinder B) sphere C) Triangular Prism D) Square Pyramid
Answer:
Option A ) Cylinder is correct.
Step-by-step explanation:
The important information need to consider is
1. Circular cross section when cut parallel to the base
2. Rectangular cross section when cut perpendicular to the base.
Let's consider each options.
Cylinder would have circular cross section when parallel to base and rectangle when it cut perpendicular to the base.
Yes! The cylinder works.
which of the following fraction pairs are equivalent? 6/15 and 18/40 8/12 and 12/18 5/11 and 10/16 4/9 and 9/4
Answer:
18/40
Step-by-step explanation:
Her older sister is making similar wall hangings with a diameter that is 134 inches longer than Poppy's. How much more wire did her sister use per wall hanging than Poppy? Use 3.14 for π. Write your answer as a decimal rounded to the nearest hundredth.
Sister uses 420.76 inches more wire per wall than Poppy.
What is a circle?A circle is a two-dimensional figure with a radius and circumference of 2πr.
We have,
Poppy's diameter = d
Older sister diameter.
D = d + 134
Now,
The circumference of the wall hangings.
= 2πr
= πd
Now,
The circumference of the wall hangings by the older sister.
= πD
= π (d + 134)
The circumference of the wall hangings by the Poppy.
= πd
Now,
The difference between the length of the wire.
= π (d + 134) - πd
= πd + π x 134 - πd
= 3.14 x 134
= 420.76 inches.
Thus,
Sister uses 420.76 inches more wire.
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Square E has sides of length e cm Square F has sides of length f cm the area of square E is 69% greater than the area of square F
work out the ratio of e:f
Pa brainliest po thanks
Will give brainliest!!! The MTC Theater holds 250 people, and last night’s performance sold out! Students under the age of 16 paid $2.50 per ticket, while everyone else paid $4.00 per ticket. Last night’s show brought in $910.
Write a system to represent the given equations.
How many adult tickets were sold?
How many under the age of 16 tickets sold
Help please I’m in need of help
Answer:
34
Step-by-step explanation:
You have to break and multiply for this question.
If a population is ____________________, a sample of the population could be ____________________.A.straight-A students; the entire student bodyB.those with window seats; all passengers on a busC.all doctors; doctors randomly selected for a surveyD.baseball players; all athletes
Answer: All doctors; doctors randomly selected for a survey
Population can be all doctor and sample of the population are doctors randomly selected for a survey
Population: This is a total number of people that stay together in the same place
Sample: A small part or quantity intended to show what the whole is like.
ASAP!!! PLEASE
A pair of equations is shown below: y = 2x − 1 y = 4x − 5 Part A: In your own words, explain how you can solve the pair of equations graphically. Write the slope and y-intercept for each equation that you will plot on the graph to solve the equations. (6 points) Part B: What is the solution to the pair of equations? (4 points)
Step-by-step explanation:
526 133 3821
P: 12345
j _o _I _n g _I _r l
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Solve for x:(-771)+x=0
Answer:
x=771
Step-by-step explanation:
−771 + x = 0
x − 771 = 0
x − 771 + 771 = 0 + 771
When bound to CR1, C3b is cleaved by __________, generating pathogen-associated B-cell co-receptor ligands.
When bound to CR1 (complement receptor 1), C3b is cleaved by Factor I, resulting in the generation of pathogen-associated B-cell co-receptor ligands.
The complement system is a part of the immune system that plays a crucial role in recognizing and eliminating pathogens. C3b is a component of the complement system that can opsonize pathogens, marking them for phagocytosis by immune cells. When C3b binds to CR1, which is present on B cells, the cleavage of C3b occurs. This cleavage is performed by an enzyme called Factor I, which is regulated by co-factors such as membrane cofactor protein (MCP). Factor I acts by proteolytically cleaving C3b into smaller fragments, resulting in the generation of pathogen-associated B-cell co-receptor ligands.
These pathogen-associated B-cell co-receptor ligands play a role in the activation of B cells, promoting their immune response against the pathogen. By cleaving C3b, Factor I helps regulate and fine-tune the complement system, ensuring an appropriate immune response while preventing excessive inflammation or damage to host tissues.
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If a=[3 5 7 9], then a(4, end) is: * 9 07 5 3 This is a required question To create a matrix that has multiple rows, separate the rows with semicolons. Semicolons space Comma Other: 2 points 2 points
The correct expression to access the last element would be a(1, 4), which is equal to 9.
If a = [3 5 7 9], the expression a(4, end) refers to the element in the fourth row and last column of matrix a.
In this case, matrix a has only one row, so a(4, end) is not a valid expression since there are no rows beyond the first row. Therefore, it doesn't correspond to any specific value in the matrix.
The correct way to access elements in matrix a would be a(1, 4), which represents the value in the first row and fourth column, resulting in the value 9.
To summarize, a(4, end) is not a valid expression for the given matrix a=[3 5 7 9].
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I'm a bit Confused on this math problem could someone help me please? thanks if you do! :D
Answer:
Step-by-step explanation:
Alright so let me try and explain this as best as I can:
So the graph isn't linear because the graph shows a parabola (a boomerang kind of shape that happens if you use an exponent somewhere in a y=mx+b formula if I remember correctly) and not a straight line. Linear graphs cannot curve, and this one does. Not sure why it it would be a function though. Assuming the answer chosen is correct, my best guess as to why it might be a function is because it continues to go in the same direction forever, there is a predictable amount of change between each point and you can follow a formula to find every point on the graph.
I really hope this helps a little!
Please please please help asapp
question: in the movie lincoln lincoln says "euclid's first common notion is this: things which are equal to the same things are equal to each other. that's a rule of mathematical reasoning and it's true because it works - has done
and always will do. in his book euclid says this is self-evident. you see there it is even in that 2000 year old book of mechanical law it is the self-evident truth that things which are equal to the same things are equal to each other."
explain how this common notion is an example of a postulate or a theorem
The statement made by Lincoln in the movie "Lincoln" refers to a mathematical principle known as Euclid's first common notion. This notion can be seen as an example of both a postulate and a theorem.
In the statement, Lincoln says, "Things which are equal to the same things are equal to each other." This is a fundamental idea in mathematics that is often referred to as the transitive property of equality. The transitive property states that if a = b and b = c, then a = c. In other words, if two things are both equal to a third thing, then they must be equal to each other.
In terms of Euclid's first common notion being a postulate, a postulate is a statement that is accepted without proof. It is a basic assumption or starting point from which other mathematical truths can be derived. Euclid's first common notion is considered a postulate because it is not proven or derived from any other statements or principles. It is simply accepted as true. So, in summary, Euclid's first common notion, as stated by Lincoln in the movie, can be seen as both a postulate and a theorem. It serves as a fundamental assumption in mathematics, and it can also be proven using other accepted principles.
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Use the data set and line plot below. How many feathers are
2
1
4
inches or shorter?
A data set titled
A line plot named
A.
8
B.
12
C.
15
D.
5
Answer:
The answer is B
I hope help you
Answer:
the correct answer for this equaction is B i think hope this helps!..
Step-by-step explanation:
Maura spends $5.50 in materials to make a scarf. She sells each scarf for 600% of the cost of materials.
Complete the sentence by selecting the correct word from the drop down choices.
Maria sells each scarf for Choose... ✓ or
The price that Maura sell each scarf would be =$33. Maura sells each scarf for $33. That is option A.
How to calculate the selling price of each scarf?To calculate the amount of money that Maura spends on each scarf the following is carried out.
The amount of money that she spends on the scarf material = $5.50
The percentage selling price of each scarf = 600% of $5.50
That is ;
= 600/100 × 5.50/1
= 3300/100
= $33.
Therefore, each price that is sold by Maura would probably cost a total of $33.
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there are 300 employees in a certain company. the human resources department wants to draw a sample of 20 employees to fill out a questionnaire about their attitudes toward their jobs. they make a list of all 300 employees, and number them from 1 to 300. then a random number generator on a computer or a calculator was used to generate 20 random numbers between 1 and 300. the employees who correspond to these numbers comprise the sample. what kind of sample was generated?
A random sample variance is when a subset of individuals from a population is chosen using a random selection method, such as a random number generator, to ensure that each individual has an equal chance of being chosen.
A random sample is a type of sampling method used to select individuals from a population to form a sample. To generate a random sample, a list of all the individuals in the population must first be created. Each individual should be numbered consecutively. A random number generator, such as a computer or calculator, can then be used to generate a list of random numbers between 1 and the total number of individuals in the population. The individuals who correspond to the numbers generated by the random number generator form the sample. This ensures that each individual in the population has an equal chance of being chosen for the sample.
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find the value riven by the problem
Answer:
SM = 13
Step-by-step explanation:
M is the midpoint of ST, then
SM = MT , that is
2x + 3 = 4x - 7 ( subtract 4x from both sides )
- 2x + 3 = - 7 ( subtract 3 from both sides )
- 2x = - 10 ( divide both sides by - 2 )
x = 5
Then
SM = 2x + 3 = 2(5) + 3 = 10 + 3 = 13
However, does these questions will be marked as brantliest !!!!
Answer:
i don't see questions but I'll go download the app on your picture:))
4.79 × 10^-6
0.0000000734
Hope this helps! :)
suppose that 70% of ucf students will vote in the presidential election. in a random sample of 1250 ucf students, let represent the proportion who will vote in the presidential election. what is the probability that more than 72% of the sampled students will vote in the presidential election? give your answer as a decimal with 4 decimal places as needed.
The probability that more than 72% of the sampled UCF students will vote in the presidential election is approximately 0.0475 or 4.75%.
To calculate the probability that more than 72% of the sampled UCF students will vote in the presidential election, we need to use the normal distribution approximation since the sample size is large.
First, we find the mean (μ) and standard deviation (σ) of the sampling distribution using the given population proportion (p) of 0.70 and the sample size (n) of 1250:
μ = p = 0.70
σ = √(p(1-p)/n) = √(0.70 * 0.30 / 1250) ≈ 0.012
Next, we need to standardize the desired proportion of more than 72% (0.72) using the z-score formula:
z = (x - μ) / σ
z = (0.72 - 0.70) / 0.012 ≈ 1.67
Now, we can find the probability using the standard normal distribution table or calculator. The probability that more than 72% of the sampled students will vote in the presidential election is the area under the curve to the right of the z-score of 1.67.
Using the standard normal distribution table or calculator, we find that the probability is approximately 0.0475.
Therefore, the probability that more than 72% of the sampled UCF students will vote in the presidential election is approximately 0.0475 or 4.75%.
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