Answer:
a) 80>3x+38
Step-by-step explanation:
Gigabyte cost + flat cost < $80
Flat cost = $38
x = number of gigabytes
$3 = money charged per gigabyte
Gigabyte cost = 3x
Answer:
3x + 38 < 80 OR 80 > 3x + 38
don't answer this...........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
Answer:
I-
Step-by-step explanation:
v=u + atu= 2a= -5teWork out the value of v.
A parallelogram must have equivalent opposite interior angles.
We know that intern angles are represented by the following expression:
\(\begin{gathered} (n-2)\cdot180 \\ n=\text{vertices} \end{gathered}\)Then, for a parallelogram:
\(\begin{gathered} (4-2)\cdot180=360\text{ degrees} \\ \text{All intern angles must add up 360\degree} \end{gathered}\)We can create the following equation to find the value of ?:
Let ?=x be the missing angle
\(\begin{gathered} 110\cdot2+2x=360 \\ 2x=360-220 \\ x=\frac{140}{2} \\ x=70 \end{gathered}\)The missing angles have a measure of 70°.
Find the value of x if PQRS is a rhombus
Answer:
x = 11
Step-by-step explanation:
The diagonals of a rhombus are perpendicular bisectors of each other, thus
8x + 2 = 90 ( subtract 2 from each side )
8x = 88 ( divide both sides by 8 )
x = 11
Suppose that a researcher wants to know if a new flu drug affects people, either by making them better or worse. Would this be a one-tailed or two-tailed test and why
Whether a one-tailed or two-tailed test is used depends on the specific hypothesis and the expected effect of the new flu drug on people.
Based on the information provided, the type of test to be conducted would depend on the specific research hypothesis and the directionality of the expected effect of the new flu drug.
Whether a one-tailed or two-tailed test is used depends on the specific hypothesis and the expected effect of the new flu drug on people.
A one-tailed test would be appropriate if the researcher has a specific prediction about the direction of the drug's effect on people. For example, if the researcher expects the new flu drug to only make people better or only make people worse, a one-tailed test would be suitable.
On the other hand, a two-tailed test would be more appropriate if the researcher does not have a specific prediction about the direction of the drug's effect. This means that the researcher is open to the possibility that the drug could either make people better or worse.
In conclusion, whether a one-tailed or two-tailed test is used depends on the specific hypothesis and the expected effect of the new flu drug on people.
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f(x)=0 has solution x=
f(x)=4 has solution x=
Answer:
I am not 100 percent sure about the answer but you have to find f and then distribute F to x
Step-by-step explanation:
a website randomly selects 50 of their customers to send a satisfaction survey to what kind of sampling is this?
The given situation demonstrates simple random sampling.
What is a simple random sample?In statistics, a simple random sample is a subset of people chosen at random from a larger group, all of whom were chosen with the same probability. It is a method of choosing a sample at random.A simple random sample might consist of 25 employees' names drawn at random from a pool of 250 employees. Since each employee has an equal chance of being selected, the sample, in this case, is random and the population, in this case, is all 250 employees. Simple random sampling, systematic sampling, stratified sampling, and cluster sampling are the four main random (probability) sampling techniques.Therefore, the given situation demonstrates simple random sampling.
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how to write interval notation for increasing and decreasing functions
Interval notation for increasing and decreasing functions is written as (x, y) where x < y for increasing functions, and (x, y) where x > y for decreasing functions.
To write interval notation for increasing and decreasing functions, you need to analyze the behavior of the function's graph.
For an increasing function, as you move from left to right along the x-axis, the y-values of the function's graph increase. In interval notation, you would write this as:
(x, y) where x < y
For example, if the function is increasing from -3 to 5, the interval notation would be (-3, 5).
On the other hand, for a decreasing function, as you move from left to right along the x-axis, the y-values of the function's graph decrease. In interval notation, you would write this as:
(x, y) where x > y
For example, if the function is decreasing from 7 to -2, the interval notation would be (7, -2).
It's important to note that for both increasing and decreasing functions, the parentheses indicate that the endpoints are not included in the interval.
Remember, when using interval notation, always write the x-value first and then the y-value. This notation helps us understand the direction and range of a function.
In conclusion, interval notation for increasing and decreasing functions is written as (x, y) where x < y for increasing functions, and (x, y) where x > y for decreasing functions.
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find the following measures of dispersion for the data below: 17 14 1 10 0 9 1 14 11 5 7 12 3 6 15 8 13 6 19 12 18 12 20 12 0 sorted data (list data with commas separating values)
Dispersion is a measure of how spread out a set of data values is. For the given data, I'll calculate three common measures of dispersion: range, variance, and standard deviation.
Sorted data: 0, 0, 1, 1, 3, 5, 6, 6, 7, 8, 9, 10, 11, 12, 12, 12, 12, 13, 14, 14, 15, 17, 18, 19, 20
1. Range: The range is the difference between the highest and lowest values in the dataset. In this case, the range is 20 (highest value) - 0 (lowest value) = 20.
2. Variance: Variance is the average of the squared differences between each data point and the mean of the dataset. First, calculate the mean (sum of values / number of values) which is 233/25 = 9.32. Next, find the squared differences between each data point and the mean, and then average these squared differences. The variance for this dataset is approximately 34.93.
3. Standard Deviation: The standard deviation is the square root of the variance. In this case, the standard deviation is approximately √34.93 ≈ 5.91.
In summary, the range for the given data is 20, the variance is approximately 34.93, and the standard deviation is approximately 5.91. These measures of dispersion provide insights into the variability of the data.
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Please explain this question and
explanation.
QUESTION 3 Scenario: Pizza Supply and Demand. Qº The demand for pizza is represented by PD = 10- and the supply of pizza is represented by PS = 4 dollars. The market for pizza is perfectly competitiv
The equilibrium price of pizza in this scenario is 2.5 dollars. At this price, the quantity demanded and supplied of pizza are both equal to 7.5
In the context of this scenario, PD represents the demand for pizza, and it is determined by a few factors, including price.
The formula PD = 10- indicates an inverse relationship between the price of pizza and the quantity demanded.
This means that as the price of pizza increases, the quantity demanded will decrease.
On the other hand, as the price of pizza decreases, the quantity demanded will increase.
PS represents the supply of pizza, and it is also determined by a few factors, including price.
The formula PS = 4 indicates that the quantity supplied of pizza is fixed at 4.
This means that the quantity of pizza supplied will not change regardless of the price of pizza.
The market for pizza is perfectly competitive, meaning that there are a large number of buyers and sellers, all of whom have equal access to the market information.
In such a market, the price of pizza is determined by the interaction of the demand and supply forces.
At the equilibrium price, the quantity demanded and supplied are equal.
In other words, the quantity demanded of pizza at the given price equals the quantity supplied.
The equilibrium price can be found by setting the demand and supply equations equal to each other and solving for price: PD = PS10- = 4P 10- = 4P P = 2.5
Thus, the equilibrium price of pizza in this scenario is 2.5 dollars.
At this price, the quantity demanded and supplied of pizza are both equal to 7.5
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Solve the simultaneous equations.
You must show all your working.
x-y=7
x² + y = 149
Answer
x = 12, y = 5
x = -13, y = -20
Step by step explanation:
You have two equations, and you have to find a way to merge them.
x - y = 7 —— {1}
From {1}, y = x - 7 —— {2}
x² + y = 149 —— {3}
Rep {2} in {3}
x² + y = 149
x² + (x-7) = 149
x² + x - 156 = 0
(x-12) (x+13) = 0
x = 12 and x = - 13
When x = 12, y = 12 - 7 = 5
(12, 5)
When x = - 13, y = - 13 - 7 = - 20
(-13, - 20)
The figure(Figure 1) is a graph of Ex. The potential at the origin is -140 V . What is the potential at x=3.0m? Expert Answer. Who are the experts?
As per the given origin, the potential at x = 3.0m is 143.0V
The term origin in math is referred as the initial point or the starting point from where we begin our calculations or measurements.
Here we have given that the potential at the origin is -140 V.
And we need to find the potential at x = 3.0m.
While we looking into the given question, we have identified that the region of space has a non-uniform electric field that points in the +x-direction and has magnitude and as the reference point, it take the potential at the origin to be -140 V .
Then the electric potential at x=3.0m is calculated as,
=> V(3) - 140 = 3.0
=> V(3) = 143.0
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Peter rode her bike 1 km
before topping. Lauren
rode 602 m before
topping. A) How many
metre farther did Peter ride
than Lauren?
The distance that Peter rode more than Lauren is 398 m .
In the question ,
it is given that ,
before stopping the distance that Peter rode is = 1km = 1000 m .
the distance that Lauren rode is = 602 m .
the difference in the distance can be calculated using the formula ,
So , the difference in the distance is = (distance rode by Peter) - (distance rode by Lauren) .
Substituting the values from above ,
we get ,
= 1000 - 602
on further simplification,
we get ,
= 398 m
Therefore , Peter rode 398m farther than Lauren .
The given question is incomplete , the complete question is
Peter rode her bike 1 km before stopping. Lauren rode 602 m before stopping. How many meter farther did Peter ride than Lauren ?
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Small boxes contain DVDs, and large boxes contain one gaming machine. Three boxes of gaming machines and a box of DVDs weigh 48 pounds. Three boxes of gaming machines and five boxes of DVDs weigh 72 pounds. How much does each box weigh?
Answer:
The weight of each gaming machine be 14 pounds and that of DVD is 6 pounds.
Step-by-step explanation:
Let the weight of the gaming machine be x and that of DVD be y. ATQ,
3x+y = 48 .....(1)
3x+5y = 72 .....(2)
Subtract equation (2) from (1)
3x+y-(3x+5y) = 48 -72
y-5y = -24
-4y = -24
y = 6
Put the value of y in equation (1).
3x+6 = 48
3x = 42
x = 14
So, the weight of each gaming machine be 14 pounds and that of DVD is 6 pounds.
Answer:
DVD box weighs 6 pounds and gaming machine box weighs 14 pounds
Step-by-step explanation:
i got the answer correct on my assignment
Oliver drew the figure below to show light traveling from the sun to earth. Name the figure he drew.
The name of the figure that he drew is a ray SE.
Given that,
Oliver drew the figure shown to show light traveling from the sun to earth.
In the figure, there is a fixed starting point S from one side.
Then it goes on a direction to E and is going to infinity, that is it never ends.
Here S represents the sun and E represents the Earth.
A line is a straight figure which goes to infinity in both directions.
A ray is a straight figure which goes to infinity in one direction and the other end is fixed.
Here one direction is going to infinity and the other if fixed.
Hence the figure is a ray.
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What is the solution of the equation?
-6x+5= 3-5x
Answer:
I think the answer is x = 2
Answer: 2
Step-by-step explanation:
-6x+5=3-5x
+5x +5x
-x +5=3
-5 -5
-x = -2
-2 -2
X=2
7) What does a multiplier of \( 1.2 \) mean?
A multiplier of 1.2 means the value is multiplied or increased by a factor of 1.2.
A multiplier is a term used to represent a factor by which a value is multiplied or increased. It is a numeric value that indicates the extent of the increase or expansion of a given quantity. Multiplication by a multiplier results in scaling or changing the magnitude of the original value.
A multiplier of 1.2 indicates that a value will be increased by 20% or multiplied by a factor of 1.2. This means that when the multiplier is applied to the original value, the resulting value will be 1.2 times the original.
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Convert each geometric sequence into an exponential function.3, 12, 48, 192,….
Use the next formula to write a geometric sequence as a exponential function:
\(f(n)=f(1)\cdot r^{n-1}\)f(1) is the first term
r is the common ratio
1. Find the common ratio: Divide each term into the previous term
\(\begin{gathered} \frac{12}{3}=4 \\ \\ \frac{48}{12}=4 \\ \\ \frac{192}{48}=4 \end{gathered}\)Common ratio: 4
2. Use the first term (3) and the common ratio (4) in the formula above:
\(f(n)=3\cdot4^{n-1}\)Then, the given sequece written in form of a exponential function is:\(f(n)=3\cdot4^{n-1}\)what is 5.951 to the hundred
Answer:
5.95
Step-by-step explanation:
The circle below shows the grades scored by students in Mr Halls first period class on a math test.
Based on the information in the hraph if 20 students in me halls third period class take the same test. Which of the following in the best prediction of how many more students will score c on test than. B in his third period class
Answer:
4 more students
Step-by-step explanation:
50 percent of 20 is 10 and 30 percent of 20 is 6 so 10-6=4
Answer:
4 more studentsStep-by-step explanation:
C grade is 50% and B grade is 30%.
The difference is:
50% - 30% = 20%If the number of students is 20, then the difference is:
20% of 20 = 20*20/100 = 4PLEASE HELP ASAP A bucket contains 48 fluid ounces of water. How many quarts of water does the bucket contain? Enter your answer as a decimal in the box. BLANK quarts
Answer:
1.5 Quarts
Step-by-step explanation:
A quart contains 32 fluid ounces. So divide 48 by 32. You get 1.5.
So the bucket contains 1.5 Quarts.
What is the first step to solving quadratic equations in factored form?
Transform the equation using standard form in which one side is zero is the first step to solving quadratic equations in factored form.
What is quadratic equations in factored form?Form factored (of a quadratic expression) A quadratic expression is said to be in factored form if it can be represented as the sum of a constant and two linear factors. If and only if its discriminant is a perfect square, a quadratic equation with integer coefficients can be factored over integers. To begin factorising an expression, "take away" any shared factors that the terms have. As x appears in both terms, if you were asked to factor x2 + x, you would write x(x + 1). It is common to refer to a polynomial as "irreducible" if it cannot be factored. It might not be factorable if the coefficients lack common components or are not reasonable.Use standard form to transform the equation so that one side is zero.Factor the non-zero side, step 2.3. Reset each component to zero (Remember: a product of factors is zero if and only if one or more of the factors is zero).Solve each of the ensuing equations.To learn more about quadratic equations refer to:
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The volume of a cube is given by V = x3 , where x is the length of an edge of the cube. The area of a square is given by A = x2 , where x is the length of a side of the square. A given cube has a volume of 1728 cubic inches.
**Explain how the information given can be used to calculate the surface area of the cube. Use specific details and domain specific vocabulary to construct a coherent response.**
Answer:
65
Step-by-step explanation:
3(4x - 1) = 5(2x -1)
2(3x - 4) = 3(x - 3) + 4
5(2x - 3) - 2(x + 1) = 7
bilinmeyen değerlerini bulun lütfen acil!
ANSWER
x = -1
x= 1
x = 3
Step-by-step explanation:
the answer is this
Janelle subtracts -4 from a number the result is 2 what is the number
Answer:
6
Step-by-step explanation:
Unknown number = x
So,
x - 4 = 2 (add 4 to both sides)
x - 4 + 4 = 2 + 4
x = 6
Cody has 1/ 2 of a cup of powdered sugar. He sprinkles 2/ 5 of the sugar onto a plate of brownies and sprinkles the rest onto a plate of lemon cookies. How much sugar does Cody sprinkle on the brownies? Simplify.
Answer:
0.2 units
Step-by-step explanation:
It is given that,
Cody has 1/ 2 of a cup of powdered sugar. He sprinkles 2/ 5 of the sugar onto a plate of brownies and sprinkles the rest onto a plate of lemon cookies.
We need to find the sugar content on the brownies.
ATQ,
\(B=\dfrac{1}{2}\times \dfrac{2}{5}\\\\B=\dfrac{1}{5}\\\\B=0.2\ \text{units}\)
So, Cody sprinkles 0.2 units of sugar on the brownies.
PLEASE HELP I NEED THIS SOON! The monthly revenue of a digital magazine from each user is represented by the function f(x) = 4x + 1. The monthly cost to provide the digital magazine to each user per month is represented by the function g(x) = x2. Which of the following evaluates the profit function for each user of the digital magazine after 2 months?
A (f • g)(2) = (4(2) + 1)(22) = (9)(4) = $36
B (f + g)(2) = (4(2) + 1) + 22 = 9 + 4 = $13
C (g − f)(2) = 22 − (4(2) + 1) = 4 − 9 = −$5
D (f − g)(2) = (4(2) + 1) − 22 = 9 − 4 = $5
Answer:
The answer is D(f-g)
Step-by-step explanation:
Profit minus expenses
Answer:
D
Step-by-step explanation:
The profit can be defined as (cost of production) - (revenue) and since the cost is defined as g(x) = x^2 and the revenue is f(x) = 4x+1. The profit can be defined as \((f-g) = (4x+1)-x^2 = -x^2+4x+1\). After 2 months you can calculate the profit by simply plugging in 2 as x. This gives you the equation: \((f-g) = (4(2) + 1) - 2^2 = 9-4 = 5\$\)
Represent Real-World Problems: Rob is making the kite shown in the figure.
a. Can Rob conclude that △ABD≅△ACD? Why or why not?
b. Rob says AB = AC and BD = CD. Do you agree? Explain.
c. Given that BD = x + 15cm and AB = x cm, write an expression for the distance around the kite in centimeters.
A) Yes, we can conclude that △ABD≅△ACD .
B) Rob says AB = AC and BD = CD. I agree.
C) The expression for the distance around the kite (perimeter) in centimeters is 4x + 30.
How is this so?A) According to the principles of geometry, when two angles are marked alike, it means that they are equal.
Thus, ∠BAD ≅ ∠CAD; and
∠BDA ≅∠ADC
Since ∠BDA ≅∠ADC and
AD = DA (Based on the Reflexive postulate,
Then on the basis of the Angle - Side - Angle theorem, △ABD≅△ACD.
B) AB = AC and BD = CD
This is because we have already proven that △ABD≅△ACD on the basis of A-S-A theorem.
C) Since both triangles are equal, the expression for their perimeter =
x + 15 + x + x + 15 + x
= 4x + 30
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If the error bars overlap, but do not contain the mean of the other group, which of the following is true: There is no significant difference between means. There is a significant difference between means. We do not know if there is a significant difference between means. None of the statements is true.
The correct statement is: There is no significant difference between means.
There are several kinds of mean in mathematics, especially in statistics. Each mean serves to summarize a given group of data, often to better understand the overall value of a given data set. Pythagorean means consist of arithmetic mean, geometric mean, and harmonic mean
If the error bars overlap, but do not contain the mean of the other group, it means that there is no significant difference between the means. Overlapping error bars indicate that the means are within the range of uncertainty, and there is not enough evidence to conclude that the means are significantly different from each other.
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The graph of f(x) = 3 . 2*-3 is shown below. g(x) is a transformation of f(x).
How would you write the equation for the function g(x)?
Answer: (c)
Step-by-step explanation:
Given
Function \(f(x)\) is \(3\times 2^x-3\)
Also, \(g(x)\) is the transformation of \(f(x)\)
From the graph, it is clear that \(g(x)\) passes through the point \((0,5)\)
Now check the option which satisfies the condition
option (c) seems to obey it
\(g(x)=3\cdot 2^x+2\\g(0)=3\cdot 2^0+2\\g(0)=3\cdot 1+2\\g(0)=3+2\\g(0)=5\)
Therefore, option (c) is correct.
Which square root is a rational number ? Square root 50, square root 70, square root 81, square root 96
Answer:
square root of 81
Step-by-step explanation:
\( \sqrt{81} = 9\)
so 9 is rational number.
the rest are irrational number