Scalar quantities of these do not include direction distance, Force, Acceleration, or Velocity.
scalar, a physical quantity whose sole description is its magnitude. Scalars include, but are not limited to, time, energy, mass, volume, density, and speed.
A scalar quantity is one that doesn't depend on movement in any direction. Vector quantities can have a magnitude and a direction. Scalar quantities have just a magnitude.
All of the option values are scalar, with the exception of impulse. A force can be an impulse. Similar to force, it has both magnitude and direction.
Additional examples of scalar quantities are mass, velocity, distance traveled, time passed, energy, density, volume, temperature, work, etc.
Since speed has a simple magnitude and no discernible direction, it is a scalar number.
A scalar quantity is something like distance. Any quantity that has both a direction and a magnitude is a vector.
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PLEASE HELP ASAP!!!!!!!!!!!!!!!!!!!!
The function that best models the number of game consoles sold in millions since 2009 is g(x) = (25.5)(0.6)ˣ.
The correct option is B.
What is Exponential Growth?An exponential function's curve is created by a pattern of data called exponential growth, which exhibits higher increases over time.
y = a(1+r)ˣ,
where a is the initial population and r is the rate in decimals and sx is the time period.
Given:
The graph shows the number of game consoles sold in millions since 2009.
Let the function is,
g(x) = abˣ.
And graph passes through two points (0, 25.5) and (1, 15.3).
So,
when x = 0 then g(x) = 25.5.
That means, a = 25.5
And, when x = 1 then g(x) = 15.3.
That means,
15.3 = (25.5)b.
b = 0.6
Therefore, the function is g(x) = (25.5)(0.6)ˣ.
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Use synthetic division to show that x = 5/2 is a zero of the function f(x) = 2x^3 - 5x^2 - 6x + 15
x = 5/2 is a zero of the function f(x) = 2x³ - 5x² - 6x + 15.
What is a function?
A function in mathematics from a set X to a set Y allocates precisely one element of Y to each part of X. The sets X and Y are collectively referred to as the function's domain and codomain, respectively. Initially, functions represented the idealized relationship between two changing quantities.
Here, we have
Given: x = 5/2 is a zero of the function f(x) = 2x³ - 5x² - 6x + 15,
f(x) = 2x³ - 5x² - 6x + 15
When we f(x) = 2x³ - 5x² - 6x + 15 by x-5/2 we get
Remainder = -10
Quotient = 2x² - 6
Divisor = x - 5/2
2x³ - 5x² - 6x + 15 = 2x² - 6 - 10/(x - 5/2)
Hence, x = 5/2 is a zero of the function f(x) = 2x³ - 5x² - 6x + 15.
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What is the slope of the function, represented by the table of values below?
slope = (y2 - y1)/(x2 - x1) = (13 - 5)/(-2-0) = 8/-2 = -4
Answer:
-4
Step-by-step explanation:
if"(x) changes from to-atX-2 , what is happening at x = 2 ? (Check all that apply. There may or may not be multiple correct answers.) A. an inflection point a relative min a change in direction (increasing to decreasing)B. a relative max a critical point a change in concavity
At x = 2, there is an inflection point and a change in trend (from increasing to decreasing).
What is inflection point?The function can change from being "concave up" to "concave down" or vice versa at points known as inflection points. Where the second derivative changes signs can be used to locate them. A point of inflection is defined as the location where the second derivative of a function, f′′, equals zero. To make the geometric significance of this clearer, we must wait a moment. If the curve "bends" upward, a portion of the graph of f has a concave upward slope. For instance, the entire popular parabola y=x2 is concave upward.
Here,
At x = 2, there is an inflection point, a relative minimum, and a direction change (from increasing to decreasing).
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Please answer it asap, it's missing
Answer:
Step-by-step explanation:
To find the value of f(g(-2)), we first need to substitute g(-2) for x in the equation for f(x).
g(-2) = (-2) + 7 = 5
So, f(g(-2)) = f(5)
Now we can substitute 5 for x in the equation for f(x) to find the final value:
f(x) = 3x² - 7x + 15
f(5) = 3(5)² - 7(5) + 15
f(5) = 75 - 35 + 15
f(5) = 55
So, f(g(-2)) = 55
Answer:5
Step-by-step explanation:55
facotrs of an expression based on your result from part (a) what are the factors of the polynomial x^3-5x^2-12x 36
The factors of the polynomial x³ - 5x² - 12x + 36 are (x-5) and -12(x+3).
What is the Factorisation of Polynomial?
The factors are the polynomials that are multiplied to produce the original polynomial.
The polynomial x³ - 5x² - 12x + 36 can be factored by grouping. We can factor a common factor of x out of the first two terms and the last two terms.
x³ - 5x² - 12x + 36= x(x² - 5x) -12x(1) +36(1)
= x(x-5)(x+1) -12(x+3)
So, the factors of the polynomial x³ - 5x² - 12x + 36 are (x-5)(x+1) and -12(x+3).
We can also factorize this polynomial by using polynomial division.
we can divide x² - 5x by x, remainder will be -5x and we can divide -12x+36 by x+3, remainder will be 0
x³ - 5x² - 12x + 36 = (x(x-5) -12(x+3))
Hence, the factors of the polynomial x³ - 5x² - 12x + 36 are (x-5) and -12(x+3).
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height and weight are two measurements used to track a childs development an organization measures child development by comparing the weights of children who are the same height and the same gender in a certain year weights for all 80 cm girls in the reference population had a mean
μ = 10.4 kg
and standard deviation
σ = 0.2 kg.
Weights are normally distributed.
X ~ N(10.4, 0.2). Calculate the z-scores that correspond to the following weights and interpret them. (Round your numerical answers to two decimal places.)
The z-score for a weight of 10.7 kg is 1.50, which means that the weight is 1.50 standard deviations above the mean of 10.4 kg.
Height and weight are two measurements used to track a childs development an organization measures child development by comparing the weights of children who are the same height and the same gender in a certain year weights for all 80 cm girls in the reference population had a mean
μ = 10.4 kg
and standard deviation
σ = 0.2 kg.
Weights are normally distributed.
X ~ N(10.4, 0.2). Calculate the z-scores that correspond to the following weights and interpret them. (Round your numerical answers to two decimal places.)
Weight = 10.7 kg
Z-score = 1.50
This means that the weight of 10.7 kg is 1.50 standard deviations above the mean of 10.4 kg.
First, calculate the difference between the weight (10.7 kg) and the mean (10.4 kg):
x - μ = 10.7 - 10.4 = 0.3
Then, divide the difference by the standard deviation:
(x - μ)/σ = 0.3/0.2 = 1.50
The z-score is 1.50, which means that the weight of 10.7 kg is 1.50 standard deviations above the mean of 10.4 kg.
The z-score for a weight of 10.7 kg is 1.50, which means that the weight is 1.50 standard deviations above the mean of 10.4 kg.
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Pls help me with this question, the answer is not 278.63 square units
Answer:
375 square units
Step-by-step explanation:
Area = (1/2) h (a+b)
=1/2 × 10 (49+26)
= 5 × 75
= 375 square units
hope it helps you <3
if x k converges to x, and yk converges to y, does xk/yk converge to x/y math?
Yes, xk/yk converges to x/y. This can be proven mathematically using the definition of a limit.
If xk converges to x and yk converges to y, then the limit of xk/yk as k approaches infinity is equal to the limit of x/y. This can be expressed algebraically as limk→∞xk/yk = limk→∞x/y, which is equal to x/y. Thus, xk/yk converges to x/y.
To calculate this, we can take a sequence of xk an yk values, and divide every xk by its corresponding yk. For example, if xk = {2, 4, 8, 16, 32} and yk = {1, 2, 4, 8, 16}, then the sequence xk/yk = {2/1, 4/2, 8/4, 16/8, 32/16} = {2, 2, 2, 2, 2}. This sequence converges to 2, which is equal to x/y. Therefore, xk/yk converges to x/y.
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A (-3,4),(-4,3),(-4,1),(-2,-4)
B
C
D
Answer: Second one (B)
Step-by-step explanation:
We can count every point as 1. As we look at choice A, the point (-4, 3) doesn't exist on the graph, so we can move to the next choice. Choice B contains all points listed on the graph. We know this because coordinates/points are read as (x,y), where x moves either right (positive) or left (negative), and y moves up (positive) or down (negative) depending on what the given point is.
Answer:
The second one:
(-3,4) (3,4) (1,-4) (-2,-4)
Explanation :
The easiest way to find the right answer is to determine the points given on the graph (x, y)
From the first quarter (x, y) : (3,4)
The sec quarter (-x, y) : (-3,4)
The third quarter (-x, -y) :(-2,-4)
And the fourth quarter (x, - y): (1,-4)
Now, all you have to do is find the right answer from the choices
Here is a list of equations. Circle all the equations that are identities. Be prepared to
explain your reasoning.
1. a = -a
2. a² + 2ab + b² = (a + b)²
3. a² - 2ab + b² = (a - b)²
4. a²b² = (a - b)(a - b)
5. (a + b)(a²- ab + b²) = a³ - b³
6. (a - b)³=a³-b³-3ab(a + b)
7.a²(a - b)4-b²(a - b) = (a - b)²(a + b)
Answer:
2356
Step-by-step explanation:
3 ^ (12/5) * root(3 ^ b, a) = 3 ^ 2 * sqrt(3)
The value of the expression: (5 + √3)/(2- √3) = 13 +7√3
How to rationalize the surd?The given surd to be rationalized is (5 + √3)/(2- √3)
Using a²-b² = (a+b)(a-b)
You can rewrite the value 1 in many ways as 2/2, 16/16, or 1 = (5 + √3)/(2-+√3)
Multiplying by 1 but in the form 1 = (2 + √3)/(2- √3) given
(5 + √3)/(2- √3) * (2 + √3)/(2-+√3)
⇒ (5 + √3)(2+√3) / [2² - (3√2)²]
Simplifying the surd to have
(10+ (5 + √3 + 2√3 + 3)/4-1
Therefore this gives 13 + 7√3
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Correct question:
How do you simplify (5 + √3)/(2- √3)?
(4,8) & (2,8)
find the slopee
Answer:
0/-2 or zero slope
Step-by-step explanation:
(4,8), (2,8)
x1 y1 x2 y2
y2- y1
_____
x2 - x1
↓
8-8
___= 0/ -2
2-4
the slope is 0/-2, making it equal 0 slope
if the radius is 10 ft,what will be the area of the circle?
The area of the circle having a radius of 10 ft will be 100π.
What is an area?The space occupied by any two-dimensional figure in a plane is called the area. The space occupied by the circle in a two-dimensional plane is called the area of the circle.
Given that the radius of the circle is 10 ft. The area of the circle is calculated by the formula written as below,
Area of the circle = πr²
Substitute the value of the radius in the formula and calculate the area of the circle.
Area of the circle = πr²
Area of the circle = π x ( 10 ) ²
Area of the circle = 100π square ft
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a clerk is wrapping two cube-shaped packages and wants to know the smallest amount of wrapping paper that can wrap each package. the edge length of the larger package is 3in. the greater than the length of the smaller package. the surface area of the larger package is 384 in^2. what is the surface area of the smaller package?
The surface of the smaller cubic package is 150 squared inches.
What is the surface area of the smaller package?Remember that for a cube of side length S, the surface area is given by:
A = 6*S^2
In this case,w we know that the surface area of the larger cube is 384 in^2, replacing that we will get:
384 in^2 = 6*S^2
S = √(384 in^2/6) = 8in
And the edge of the smaller package is 3 inches shorter, then its sidelength is:
s = 8in - 3in = 5in
Then its surface area is:
A = 6*(5in)^2 = 150 in^2
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Abe can mow a lawn in 3 hours. After he has been working for 1/3 hour, Bob helps, and working together, it takes 1 and 2/3 hours more to finish the job. How long would it take Bob to mow the lawn by himself?
Please show work.
Bob would take 5 hours to mow the law by himself.
Let us consider, the area of the lawn to be mowed to be x inch².
It is given that the law can be mowed by Abe alone in 3 hours.
We know that,
Rate of work = Work/Time
⇒ rate of work of Abe = area to be mowed(work)/time taken
= (x/3) inch²/hour
Now,
Abe has been working alone for 1/3 hour
⇒work done by Abe alone = rate of work of Abe x time
= (x/3) inch²/hour x 1/3 hour
= x/9 inch²
Remaining work = x - x/9 = 8x/9 inch²
Let, the rate of work of Bob be y inch²/hour.
It is given that the time taken by Abe and Bob to complete the remaining work together is 1 and 2/3 hours, i.e, 5/3 hours.
Therefore,
The rate of work of Abe and Bob when working together
= work ÷ time
=(8x/9) ÷ (5/3)
=8x/15 inch²/hour
⇒ Rate of work of Abe + Rate of work of Bob = 8x/15
⇒ x/3 + y = 8x/15
⇒ y = (8x/15) - (x/3)
⇒ y = 3x/15 = x/5 inch²/hour
Thus, the time taken by Bob to mow the law by himself
= work ÷ rate of work
= x inch² ÷ (x/5) inch²/hour
= 5 hours
So, it would take 5 hours for Bob to mow the lawn alone.
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Rousey Incorporated, had a cash flow to creditors of $16,830 and a cash flow to shareholders of $7,370 over the past year. The company also had net fixed assets of $49,630 at the beginning of the year and $57,040 at the end of the year. Additionally, the company had a depreciation expense of $12,180 and an operating cash flow of $50,935. What was the change in net working capital during the year?
the change in net working capital during the year will be $6,935.
What are mathematical operations?The term "operation" in mathematics refers to the process of computing a value utilizing operands and a math operator. For the specified operands or integers, the math operator's symbol has predetermined rules that must be followed. In mathematics, there are five basic operations: addition, subtraction, multiplication, division, and modular forms.
Given, Rousey Incorporated, had a cash flow to creditors of $16,830 and a cash flow to shareholders of $7,370 over the past year.
Cash flow from assets:
= Cash flow to creditors + Cash flow to shareholders
= $16,965 + $7,559
= $24,524
Since
Net capital spending = Net fixed assets at the end - Net fixed assets at the beginning + Depreciation expense
Cash flow from financial assets = Operating cash flow - Net capital spending - Change in working capital
$24,524 = $51,136 - ($57,130 - $49,705 + $12,252) - Change in working capital
$24,524 = $51,136 - $19,677 - Change in working capital
$24,524 = $31,459 - Change in working capital
Change in working capital = $31,459 - $24,524
= $6,935
Therefore, the change in net working capital during the year will be $6,935.
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[tex]\frac{c^{2}-d^{2} }{d^{2}+cd-2c^{2} }[/tex]
The value of the expression (c² - d²) / (d² + cd - 2c²) in the simplified form will be negative (c + d) / (d + 2c).
What is the value of the expression?When the relevant components and basic processes of a numerical method are given values, the expression's result is the result of the computation it depicts.
The definition of simplicity is making something simpler to achieve or grasp while also making it a little less difficult.
The expression is given below.
⇒ (c² - d²) / (d² + cd - 2c²)
Factorize the numerator and denominator, then we have
⇒ (c² - d²) / (d² + cd - 2c²)
⇒ (c² + cd - cd - d²) / (d² + 2cd - cd - 2c²)
⇒ [c(c + d) - d(c + d)] / [d(d + 2c) - c(d + 2c)]
⇒ [(c + d)(c - d)] / [(d - c)(d + 2c)]
⇒ - [(c + d)(d - c)] / [(d - c)(d + 2c)]
⇒ - (c + d) / (d + 2c)
The value of the expression (c² - d²) / (d² + cd - 2c²) in the simplified form will be negative (c + d) / (d + 2c).
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the function b(r) shows the number of baskets of apples per tree an orchard farmer gets if there's r inches of rainfall during the summer then what can be formulated?
In an apple orchard, the density of planting determines how many of apples a single tree will produce. An illustration of this is Y=X².
What is meant by function?There are different kinds of means in mathematics, especially in statistics. Each mean summarises a specific set of data, frequently in order to assess the overall importance of a specific data set.A function is a relationship where each input has one and only one output and where there are many inputs.A rule, law, or mathematical formula that establishes the relationship between the independent variable and the dependent variable (the dependent variable).A function is an example of a rule because it produces one output from one input. Alex Federspiel is who took the photos. Y=X2 provides an example of this.To learn more about function, refer to:
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at the amusement park, janine bought a bottle of water for $2. she also bought game tickets for $0.50 each. janine spent a total of $15. which of the following equations can be used to find the number of $0.50 game tickets, g, janine bought?
1. 2g-0.50=15
2. 2g+0.50=15
3. 0.50g-2=15
4. 0.50g+2=15
Answer:
4. 0.50g+2=15
Step-by-step explanation:
A rule for a histogram that decides into which class intervals subjects are placed if their value is on the boundary between two intervals.
A rule for a histogram that decides into endpoint convention class intervals subjects is placed if their value is on the boundary between two intervals.
Endpoints are defined as physical devices that connect to and exchange information with a computer network.
There are some examples of endpoints:
They are mobile devices, desktop computers, virtual machines, embedded devices, and servers.
Internet-of-Things devices like cameras, lighting, refrigerators, security systems, smart speakers, and thermostats are also examples of endpoints.
When a device connects to a network, the flow of information between, for instance, a laptop and a network, is much like a conversation between two people over the phone.
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Need help ASAP!!! This is due by tomorrow
Answer:
a= 17
Step-by-step explanation:
Since all sides are equal length, all angles must be equal. Since all of the angles of every triangle sum to 180*, 180/3= 60*. Therefore, (4a-8)*=60*
From there, we can solve for a by adding 8 to both sides:
(4a-8)+8=60+8
4a=68
Then we can divide both sides by 4 to get
(4a)/4= 68/4
a=17
Answer:
a = 17
Step-by-step explanation:
This seems to be an equilateral triangle, so the angle is 60 degrees. 68 - 8 is 60. 4a represents 4 × a, and we know 4 × a has to be 68. 68 / 4 is 17, meaning a = 17.
Suppose the standard deviation of the sampling distribution of the sample mean for random samples of size 50 is 0.3 inches. If the mean length of the fish is 8 inches, use the normal distribution to compute the probability that a random sample of 50 fish will have a mean length less than 7.5 inches. Suppose the distribution of fish lengths in this lake was not normal but had the same mean and standard deviation. Would it still be appropriate to use the normal distribution to compute the probability in part (ii)? Justify your answer.
Each sampling distribution becomes more leptokurtic as sample sizes increase due to a reduction in its variety. The sampling distribution's range is smaller than the initial population's range.
Why is standard deviation used?The degree of variation of the data from the mean is referred to as "standard deviation" (or ""). When the standard deviation is low, the data tend to cluster around the mean; when it is large, the data are more spread.Your data set's average level of variability is represented by the standard deviation. It reveals the average distance between each score and the mean.the distribution of data follows a bell curve or is normal. 68% of the scores or data values, or 1 SD, nearly occupy the region of a bell curve starting at position 13 on the y axis.To learn more about standard deviation, refer to:
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assume 85% of people actually show up for thier flight on time. because of this, airlines tend to overbook flights. a random sample of 220 booked passengers is taken and whether or not they showed up on time is recorded for each of them.
The sample proportion based on the question that we have here is 0.85
What is sample proportion?
The sample proportion (p) indicates the percentage of people in a sample who exhibit a particular quality or attribute. Divide the number of individuals (or items) who have the desired attribute by the overall sample size to obtain the sample proportion.
P=X/N, where X represents the number of successes and N represents the sample size, yields the sample proportion.
Hence from the question, we see that 85% of the passengers booked for flights actually show up. hence the proportion is 0.85.
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ou run an experiment in which you flip 3 coins, and each one lands heads or tails. your sample space can be written: {hhh, hht, hth, htt, thh, tht, tth, ttt}. assume all outcomes have equal probability.
The sample space can be written as {HHH, HHT, HTH, HTT, THH, THT, TTH, TTT}. Each outcome has a probability of 1/8, since there are 8 equally likely outcomes in total.
What is probability?
Probability is a measure of the likelihood of an event occurring. It is a value between 0 and 1, where 0 represents an impossible event and 1 represents a certain event. The probability of an event A, denoted as P(A), is given by the ratio of the number of favorable outcomes to the total number of possible outcomes.
In this experiment, the sample space is the set of all possible outcomes of flipping 3 coins. Each coin can land either heads (H) or tails (T), so there are 2^3 = 8 possible outcomes of flipping all three coins.
The sample space can be written as {HHH, HHT, HTH, HTT, THH, THT, TTH, TTT}. Each outcome has a probability of 1/8, since there are 8 equally likely outcomes in total.
Hence, The sample space can be written as {HHH, HHT, HTH, HTT, THH, THT, TTH, TTT}. Each outcome has a probability of 1/8, since there are 8 equally likely outcomes in total.
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The bullseye on an archery target has a radius of 3 inches. The entire target has a radius of 9 inches. To the nearest hundredth, find the area of the target outside of the bullseye. Use 3.14 for π.
Answer:
226.1 [tex]in^{2}[/tex]
Step-by-step explanation:
Write an algebraic expression as indicated.
Two numbers total 123. Let x represent one of the numbers. Write an algebraic expression for the other number.
The other number can be represented as 123-x.
The perimeter of the TCL 3-Series Roku Smart TV is 112 inches. The width of the TV is 16 inches greater than its height. Find the width and the height of the TV.
Answer: Height = 20 inches, Width = 36 inches
Step-by-step explanation:
Let the height be [tex]h[/tex] and the width be [tex]h+16[/tex].
Using the formula for the perimeter of a triangle,
[tex]2(h+h+16)=112\\\\2(2h+16)=112\\\\2h+16=56\\\\2h=40\\\\h=20 \implies h+16=36[/tex]
Tommy's four dogs, Fido, Jack, Sam, and Lilly, went to the vet to be weighed. Fido weighed 27 pounds, Jack weighed 37.5 pounds, Sam weighed 53 pounds, and Lilly weighed 16 pounds.
What is the total weight of the four dogs?
A.103 pounds
B. 147.9 pounds
C.112.9 pounds
D.122.9 pounds
Answer: 133.5
Step-by-step explanation:
Add the weights together and, for some reason, you get 133.5
Answer:
133.5 pounds------------------------------------
Add the four numbers together to get the total weight:
27 + 37.5 + 53 + 16 = 133.5 poundsIt doesn't match any options, please double check if they are (or given weights) correct.
True or False: An Obtuse angle is between 91 and 179 degrees
Answer:
True
Step-by-step explanation:
An obtuse angle is an angle that is greater than 90 degrees but less than 180 degrees. An obtuse angle is also called a reflex angle. A reflex angle is formed when the arms of an angle point in opposite directions. The degree of an obtuse angle is between 91 and 179 degrees. Therefore, it's true.
Hope it helps! :)
Answer:
True
Step-by-step explanation:
An obtuse angle measures more than 90 degrees and 180 degrees. So 179 is greater than 90 degrees and less than 180 degrees.
