Answer:
Step-by-step explanation:
We can use the slope-intercept form of a linear equation to model the distance traveled by the car:
y = mx + b
where y is the distance traveled in feet (d), x is the time in seconds (t), m is the slope (the rate of change of the distance with respect to time), and b is the y-intercept (the initial distance traveled at t = 0).
We know that the car passed the timing device at t = 0, so the initial distance traveled is 0. We also know that after 7 seconds, the car has traveled 609 feet. We can use this information to find the slope:
m = (change in y) / (change in x) = (609 - 0) / (7 - 0) = 87
Therefore, the linear function rule to model the distance traveled by the car is:
d = 87t
where d is the distance traveled in feet and t is the time in seconds after passing the timing device.
y = f(x) = 5x
find f(x) when x = 3
The value of f(x) when x is 3 is 15
What is function?A Function in mathematics is an expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable (the dependent variable).
For example, if f(x) = x² +2x +5 , the value of f(x) when x is 2 is calculated as;
f(x) = 2² + 2(2) + 5
f(x) = 4 +4+5
= 13
This done by substituting the given value of x into the expression.
Similarly , if f(x) = 5x, the value of f(x) when x is 3 is calculated as;
f(x) = 5(3)
f(x) = 15
therefore the value of f(x) when x is 3 is 15
learn more about function from
https://brainly.com/question/11624077
#SPJ1
An Early Childhood Education student is doing a report on how many children aged 2 know their colors. The student collected a random sample of 50 children of age 2 and found that 42 of them knew their colors. What is the sample statistic? Give your answer in percent form.
The sample statistic is 50.
The sample statistic refers to the individuals collected from the entire population.The sample statistic is gotten from the entire population. In this case, a random sample of 50 children of age 2 was collected from the entire population. Therefore, this is the sample statistic.
In conclusion, the sample statistic is 50.
Read related link on:
https://brainly.com/question/24746817
Allen Siegell has a personal injury protection policy that covers each person in, on, around, or under his car for medical expenses up to $50,000. He is involved in an accident and five people in his car are hurt. One person has $3,000 or medical expenses, three people each have $500 worth of medical expenses, and Allen himself has medical expenses totaling $62,000. How much money must the insurance company pay out for these five people?
The total medical expenses for the five people in the car are $3,000 + $3*$500 + $62,000 = $3,000 + $1,500 + $62,000 = $66,500
What does a math word problem entail?
A math word problem is a question that is written as one or more sentences and asks students to use their mathematical understanding to solve an issue from "real world." In order for kids to understand the word problem, they must be familiar with the terminology that goes along with the mathematical symbols that they are used to.
Since Allen's personal injury protection policy covers each person up to $50,000, the insurance company must pay out $50,000*5 = $250,000 for the five people in the car.
Since the total medical expenses for the five people are $66,500, the insurance company will pay out the total medical expenses for the five people, which is $66,500.
Therefore, the insurance company must pay out $66,500 for these five people.
Learn more about word problem
https://brainly.com/question/21405634
#SPJ1
present ages of two children are 2 and 5 years the rspectively. After how long will the sum of their square ages be 45.
Using the concept of word problems and quadratic equation it will take 1 year until the sum of square of their ages be 45.
Calculating the duration to get the sum to 45Word problems are mathematical problems that are delivered in ordinary words, instead of mathematical symbols.
Part of the problem with dealing with word problems that they first need to be translated into mathematical equations, and then the equations need to be solved.In this problem;
let x represent the number of years from now when the sum of square of their respective age will be
45.(x + 2)² + (x + 5)² = 45
Expanding the brackets;
x² + 4x + 4 + x² + 10x + 25 = 45
2x² + 14x + 29 = 45
2x² + 14x + 29 - 45 = 0
2x² + 14x - 16 = 0
Solving the quadratic equation for x;
x = 1, x = -8
Taking the positive value, the value of x is 1
Learn more on age word problems here;
https://brainly.com/question/17043336
#SPJ1
58 children go into the hall for a concert. There are six seats in a row. How many rows are needed to seat everyone?
To seat all 58 children in the hall for the concert, 10 rows are needed.
1. Determine the number of children per row: Since there are 6 seats in a row, each row can accommodate 6 children.
2. Divide the total number of children by the number of children per row: Divide 58 (the total number of children) by 6 (the number of children per row).
58 ÷ 6 = 9 with a remainder of 4
This means that 9 full rows can be formed, and there will be 4 children left after the last full row.
3. Check if there are any remaining children: Since there are 4 children remaining, they cannot form a complete row by themselves.
4. Calculate the number of rows needed: Add 1 to the number of full rows to account for the remaining children.
9 full rows + 1 row for the remaining children = 10 rows in total.
Therefore, to seat all 58 children in the hall for the concert, 10 rows are needed.
For more such questions on rows, click on:
https://brainly.com/question/15063510
#SPJ8
A manufacturer has 576 square inches of material available to construct the 6 faces of a carton, which will be in the shape of a rectangular prism. To maximize the volume, the carton will have dimensions such that the length and width are each twice the height.
To maximize the volume, of the rectangular prism, the carton should have dimensions of approximately 10.74 inches (length), 10.74 inches (width), and 5.37 inches (height).
What is the dimension required to maximize the volume of the box?Assuming the height of the rectangular prism is h inches.
According to the given information, the length and width of the prism will be twice the height, which means the length is 2h inches and the width is also 2h inches.
The total surface area of the rectangular prism is given by the formula:
Surface Area = 2lw + 2lh + 2wh
Substituting the values, we have:
576 = 2(2h)(2h) + 2(2h)(h) + 2(2h)(h)
576 = 8h² + 4h² + 4h²
576 = 16h² + 4h²
576 = 20²
h² = 576/20
h² = 28.8
h = √28.8
h = 5.37
The height of the prism is approximately 5.37 inches.
The length and width will be twice the height, so the length is approximately 2 * 5.37 = 10.74 inches, and the width is also approximately 2 * 5.37 = 10.74 inches.
Learn more on maximizing volume here;
https://brainly.com/question/10373132
#SPJ4
hey guys i need help plz will give brainlist
Step-by-step explanation:
Effective resistance in the 30Ω and 40Ω parallel circuit = 1 / (1/30 + 1/40) = 120/7 Ω.
20Ω + 10Ω = 30Ω
Effective resistance in the 50Ω and (20Ω + 10Ω) parallel circuit = 1 / (1/50 + 1/30) = 75/4 Ω.
Now we can add the resistances up:
Effective resistance for circuit
= 120/7 Ω + 75/4 Ω = 1005/28 Ω.
Hence I = V / R
= 9.0V / (1005/28 Ω) = 0.25A. (2s.f.)
Ruth wants to find the decimal equivalent of 226
, so she divides. Study Ruth’s work shown here, and then answer the questions below.
The digits after the decimal point repeat in a pattern of 6's. This is because 22/6 is a rational number,
What is a rational number?A rational number is a number that can be expressed as a ratio or fraction of two integers (a numerator and a non-zero denominator).
We can see that the next three digits in the decimal points are 6, 6 and 6, respectively. Therefore, the decimal equivalent of 22/6 is:
22/6 = 3.666666...
We notice that the digits after the decimal point repeat in a pattern of 6's. This is because 22/6 is a rational number, which means that its decimal representation either terminates (ends) or repeats in a pattern. In this case, it repeats in a pattern of 6's.
Each of the digits after the decimal point will be 6 because this number is a rational number and repeating decimal with a repeating digit of 6.
The difference between 40 and the product of these digits and 6 is always 4.
To know more about rational number, visit:
https://brainly.com/question/22221295
#SPJ1
A recipe calls for 5 5/6 cups of flour. Terell wants to make 6/7 of the recipe.
How much flour should he use?
Terell should use_____ cup(s) of flour,
Answer: It might be -4/42 But Im not really sure I subtracted the 5 5/6 from 6/7 and got -4/42
Step-by-step explanation:
1/2(10x-6)=4x+10 what is the value of x that makes the equation true?
Answer:
x=13
Step-by-step explanation:
Find the equation of the parabola with focus (-3,2) and directrix x-y + 1 = 0.?
Step-by-step explanation:
To find the equation of the parabola with focus (-3,2) and directrix x-y+1=0, we can use the definition of a parabola: the set of all points that are equidistant to the focus and directrix.
Let P(x, y) be an arbitrary point on the parabola, and let d(P, directrix) be the distance from P to the directrix. The distance from P to the focus is given by the distance formula:
d(P, focus) = √[(x - (-3))^2 + (y - 2)^2] = √[(x + 3)^2 + (y - 2)^2]
Since P is equidistant from the focus and directrix, we have:
d(P, directrix) = |x - y + 1| / √(1^2 + (-1)^2) = |x - y + 1| / √2
Therefore, the equation of the parabola is given by:
d(P, focus) = d(P, directrix)
√[(x + 3)^2 + (y - 2)^2] = |x - y + 1| / √2
Squaring both sides and simplifying, we get:
(x + 3)^2 + (y - 2)^2 = (x - y + 1)^2 / 2
Expanding the right-hand side and simplifying, we get:
2(x + 3)^2 + 2(y - 2)^2 = (x - y + 1)^2
Expanding the right-hand side again and simplifying, we get:
2x^2 + 8xy + 2y^2 - 8x - 12y + 20 = 0
Therefore, the equation of the parabola is:
2x^2 + 8xy + 2y^2 - 8x - 12y + 20 = 0
which is in general form.
1.2 Generate a three-column table where you evaluate how learning takes place according to: • Piaget • Vygotsky • Bruner (15)
While Piaget, Vygotsky, and Bruner have different perspectives on how learning occurs, they all emphasize the active role of the learner in constructing knowledge and the importance of social interaction and cultural influences in the learning process.
Here's a three-column table evaluating how learning takes place according to Piaget, Vygotsky, and Bruner:
Theorist Approach to Learning Key Concepts
Piaget Constructivism 1. Schema: Individuals actively construct their knowledge through assimilation and accommodation, organizing information into mental structures called schemas. 2. Stages of Development: Learning occurs through cognitive development stages, from sensorimotor to formal operational, where individuals progressively acquire more complex mental abilities. 3. Active Exploration: Children learn best through hands-on exploration and interactions with the physical world.
Vygotsky Sociocultural Theory 1. Zone of Proximal Development (ZPD): Learning takes place within the gap between a learner's actual developmental level and their potential level with guidance from a more knowledgeable other. 2. Social Interaction: Learning is facilitated through social interactions with peers and adults, such as cooperative learning and scaffolding. 3. Cultural Tools: The use of language, symbols, and cultural artifacts plays a central role in cognitive development and learning.
Bruner Constructivism 1. Scaffolding: Instruction should provide support and guidance tailored to the learner's current abilities to help them progress to higher levels of understanding. 2. Discovery Learning: Learners construct knowledge by actively exploring and discovering concepts and relationships on their own. 3. Spiral Curriculum: Learning is organized in a spiral manner, revisiting key concepts and building upon previous knowledge in a progressive and interconnected way.
While Piaget, Vygotsky, and Bruner have different perspectives on how learning occurs, they all emphasize the active role of the learner in constructing knowledge and the importance of social interaction and cultural influences in the learning process.
For more questions on perspectives
https://brainly.com/question/6993294
#SPJ8
The quotient of a number a and a number b
Answer:
a÷b
Step-by-step explanation:
quotient means divide
Determine the value of x. Round to 2 decimal places.
Answer:
I think it would have to be 17 and if it's not it's -17 and if it's not that give up on math this is not going to help in the real world sorry have a good day
Which equation describes the function shown on the graph?
A.
y = -3x + 4
B.
y = 3x – 4
C.
y = 1
3 x – 4
D.
y = - 1
3 x – 4
A patient has been instructed to drink a gallon of water each day. How many cups does the patient
need to drink?
Thank
Answer:
16 cups a day
Step-by-step explanation:
the table shows the total cost of bowling any number games and renting bowling shoes. write a two step equation to represent the total cost of c for bowling g games.
Thus, an equation to show the overall price y of renting shoes and bowling x equipment is: y=4x+b.
Explain about the slope intercept form:The task is to create an equation that use the total expense (y) and the total number of bowled games (x). Hence, the way that we will begin is by entering the knowing into the formula of slope intercept form: y=mx+b.
The cost of a game is $4, while the cost of renting shoes is set and unknowable. Since each game costs $4, we already have. Hence, y=4x+b. Yet b is still unknown to us. The constant b in the equation y=mx+b usually refers to the fixed price in linear math equations.We are aware of the a y, overall game cost, and the x, overall game number. These figures are, respectively, $14 and 3.Thus, we include them in the formula: y=4x+b.
14 = 4(3)+b
Find b
14 = 12+b
14 - 12=b
b = 2
Thus, an equation to show the overall price y of renting shoes and bowling x equipment is: y=4x+b.
Know more about the slope intercept form
https://brainly.com/question/1884491
#SPJ1
Complete question:
The total cost for bowling includes the fee for shoe rental plus a fee per game. The cost of the game increases the price by $4. After 3 games, the total cost with shoe rental is $14.
a.write an equation to represent the total cost y to rent shoes and bowl x games.
expand and simplify (4+√2)(6-√2)
Answer:
\(22+2\sqrt{2}\)
Step-by-step explanation:
\((4+\sqrt{2} )(6-\sqrt{2} )\)
\(4(6)-4\sqrt{2} +6\sqrt{2} -2\)
\(24+2\sqrt{2} -2\)
\(22+2\sqrt{2}\)
How many miles did Jayne travel in 4 hours
Answer:
20
Step-by-step explanation:
if f(x)=x+2/x^2-9 and g(x)=11/x^2+3x
A. find f(x)+g(x)
B. list all of the excluded values
C. classify each type of discontinuty
To receive credit, this must be done by Algebraic methods, not graphing
The types of discontinuities are: removable discontinuity at x = -3 and vertical asymptotes at x = 0 and x = 3.
A. To find f(x) + g(x), we add the two functions together:
f(x) + g(x) = (x + 2)/(x^2 - 9) + 11/(x^2 + 3x)
To add these fractions, we need a common denominator. The common denominator in this case is (x^2 - 9)(x^2 + 3x). So, we rewrite the fractions with the common denominator:
f(x) + g(x) = [(x + 2)(x^2 + 3x) + 11(x^2 - 9)] / [(x^2 - 9)(x^2 + 3x)]
Simplifying the numerator:
f(x) + g(x) = (x^3 + 3x^2 + 2x^2 + 6x + 11x^2 - 99) / [(x^2 - 9)(x^2 + 3x)]
Combining like terms:
f(x) + g(x) = (x^3 + 16x^2 + 6x - 99) / [(x^2 - 9)(x^2 + 3x)]
B. To find the excluded values, we look for values of x that would make the denominators zero, as division by zero is undefined. In this case, the excluded values occur when:
(x^2 - 9) = 0 --> x = -3, 3
(x^2 + 3x) = 0 --> x = 0, -3
So, the excluded values are x = -3, 0, and 3.
C. To classify each type of discontinuity, we examine the excluded values and the behavior of the function around these points.
At x = -3, we have a removable discontinuity or hole since the denominator approaches zero but the numerator doesn't. The function can be simplified and defined at this point.
At x = 0 and x = 3, we have vertical asymptotes. The function approaches positive or negative infinity as x approaches these points, indicating a vertical asymptote.
Therefore, the types of discontinuities are: removable discontinuity at x = -3 and vertical asymptotes at x = 0 and x = 3.
For more questions on vertical .
https://brainly.com/question/30195815
#SPJ8
Urgenteee
Un tronco de madera de 3,080 kg de 1m de diametro
y 10m de largo, flota en el agua ¿Cuanto es el volumen de tronco
por arriba de la superficie del agua?
The volume of the log will be 30,70,760 m³.
What is Archimedes principle?Mathematically, we can write Archimedes principle as -
F{buoyant} = - fluid density {ρ} x acceleration due to gravity {g} x volume {v}
Given is that a 3080 kg log of wood with a diameter of 1 m and 10 m long, it floats in the water.
Since the log floats on water, the density of both the log and water is same.
So, we can write volume as -
Volume = 3080 x 997 Volume = 30,70,760 m³
Therefore, the volume of the log will be 30,70,760 m³.
To solve more questions on Archimedes principle, visit the link below
https://brainly.com/question/787619
#SPJ9
{QUESTION IN ENGLISH -urgent A 3,080 kg log of wood with a diameter of 1 m and 10 m long, it floats in the water. What is the volume of the trunk above the surface of the water?}
How many roots do the functions have in common f(x)=x^2+x-6
To find the common roots between two functions, we need to find the roots (or solutions) of each function individually and then identify the shared solutions.
For the function f(x) = x^2 + x - 6, we can find the roots by setting the function equal to zero and solving for x:
x^2 + x - 6 = 0
To factorize this quadratic equation, we need to find two numbers that multiply to -6 and add up to 1 (the coefficient of x). The numbers that satisfy these conditions are 3 and -2:
(x + 3)(x - 2) = 0
Setting each factor equal to zero:
x + 3 = 0 or x - 2 = 0
Solving for x in each equation:
x = -3 or x = 2
Therefore, the function f(x) = x^2 + x - 6 has two roots: x = -3 and x = 2.
To find the common roots between this function and another function, we would need to know the second function. If you provide the second function, I can help determine if there are any shared roots.
Anyone need help? :D
Answer:
yeah why? are you going to help?me
Answer:
Yes i actually do.
Step-by-step explanation:
Bert and Ernie are looking at their paper clip collections. Bert has 5 paper clips for every 3 paper clips that Ernie has. If Bert gives Ernie 12 paper clips, they will have the same number of paper clips. How many paper clips does Bert have?
Answer:
bert had 60 paper clips, while ernie had 36 paper clips, when bert gives ernie 12 paper clips they both have 48 paper clips.
Step-by-step explanation:
b=bert clips; e=ernie clips;
5/3b=e; b-12=e+12; therefore there would have to be a difference of 24 between them, since at the lowest bert has 2 more paper clips than ernie to get a difference of 24 you multiply both sides by 12
Bert has 60 paper clips while Ernie has 36 paper clips.
EquationEquation is used to show the relationship between two or more numbers and variables.
Let x represent the number of Bert paper clips and y represent the number of Ernie paper clip.
Bert has 5 paper clips for every 3 paper clips that Ernie has. Hence:
x = (5/3)y3x - 5y = 0 (1)Also, If Bert gives Ernie 12 paper clips, they will have the same number of paper clips. Hence:
x - 12 = y + 12x - y = 24 (2)From solving equation 1 and 2 simultaneously:
x = 60, y = 36
Bert has 60 paper clips while Ernie has 36 paper clips.
Find out more on equation at: https://brainly.com/question/13763238
When the scale factor is 1, what is the ratio of the side length of the side opposite ∠A and the length of the hypotenuse?
when the scale factor is 1, we have:
(side length of side opposite ∠A) / (length of hypotenuse) = sin A
When the scale factor is 1, the ratio of the side length of the side opposite ∠A to the length of the hypotenuse remains the same as in the original triangle. In a right triangle, the side opposite ∠A is referred to as the "opposite" side, and the hypotenuse is the longest side.
The ratio of the side length of the side opposite ∠A to the length of the hypotenuse is commonly known as the sine of angle A (sin A). So, when the scale factor is 1, the ratio of the side length of the side opposite ∠A to the length of the hypotenuse is equal to sin A.
In mathematical terms, when the scale factor is 1, we have:
(side length of side opposite ∠A) / (length of hypotenuse) = sin A
It's important to note that this ratio holds true for any right triangle, regardless of its size or dimensions, as long as the angle A remains the same.
For more questions on side
https://brainly.com/question/30452445
#SPJ8
The Wind Up Corp computed their monthly expense equation as E=3.2q+56,000. Its products will be sold to retailers at a wholesale price of 3.56 each. What is the revenue equation? r=?
The revenue equation of the item is r = 3.56q
How to determine what is the revenue equation?The given parameters are:
Expense equation, E = 3.2q + 56000
Selling price = 3.56 per item
This means that the selling price equation is
S = Selling price per item * Number of items
So, we have
S = 3.56 * q
This gives
S = 3.56q
The total selling price of the item is the same as the revenue equation
So, we have
r = 3.56q
Note that the revenue equation is also a linear equation
Where linear equations are equations that have constant average rates of change. Note that the constant average rates of change can also be regarded as the slope or the gradient
Hence, the revenue equation of the item is r = 3.56q
Read more about revenue equation at
https://brainly.com/question/25623677
#SPJ1
A teacher wants to know students post-graduation plans. He surveys his homeroom class and learns that most students plan to become soldiers. The inference is valid or not valid
Based on the information provided, the inference that a significant number of students in the homeroom class plan to become soldiers is valid.
The teacher surveyed his homeroom class about their post-graduation plans. He found out that most of his students plan to become soldiers.
An inference is a conclusion that can be drawn from a given set of data. In this case, the inference that can be made is that a significant number of students in the homeroom class plan to become soldiers.Therefore, the inference is valid based on the data provided.
However, it is essential to keep in mind that the sample size in the homeroom class is relatively small and may not be representative of the entire population. If the teacher had surveyed a more extensive and diverse population, the results might have been different.
In conclusion, based on the information provided, the inference that a significant number of students in the homeroom class plan to become soldiers is valid. However, this may not apply to the entire population, and it is crucial to consider the sample size when drawing inferences.
For more such questions on inference, click on:
https://brainly.com/question/25913650
#SPJ8
What’s the length of kL?
Applying the intersecting secants theorem, the length of segment KL is approximately, 45.8.
What is the Intersecting Secants Theorem?According to the intersecting secants theorem, if two lines from a point outside a circle intersect the circle, then the product of the length of one line segment and its portion outside the circle is equal to the product of the length of the other line segment and its portion outside the circle.
Using the theorem, we have:
MN * MO = ML * MK
Substitute:
21 * 48 = 22 * KL
1,008 = 22KL
1,008/22 = KL
KL = 45.8 (nearest tenth)
Learn more about the intersecting secants theorem on:
https://brainly.com/question/15392507
#SPJ1
what is 8 miles into yards
Answer:
your anser is 14080 yards
Step-by-step explanation:
u convert
PLEASE HELP 10 points
The statement -
"If there is {b} ounces of water in a bottle, than (b + 5) would represent the amount of water left in the bottle after you drink 5 ounces" in option 2, cannot be represented with the help of the function given.
What is a function?An function in mathematics defines a relationship between one variable (the independent variable, {x}) and another variable (the dependent variable, {y}). Example -
y = f{x} = ax + b
Given is a function as -
y{b} = b + 5
The statement that cannot be represented with the help of this function is given below -
"If there is {b} ounces of water in a bottle, than (b + 5) would represent the amount of water left in the bottle after you drink 5 ounces".This amount of water left is represented by the expression (b - 5).Therefore, the statement "If there is {b} ounces of water in a bottle, than (b + 5) would represent the amount of water left in the bottle after you drink 5 ounces" cannot be represented with the help of the function given.
To solve more questions on functions, visit the link below -
brainly.com/question/26182329
#SPJ1