Answer:
Step-by-step explanation:
i think its the two on the bottom
if I'm wrong I'm so sorry
hope this helps
Answer:
The left one below.
Step-by-step explanation:
Because a function is increasing if as x gets larger.
Which number is less
than -5?
A-8
B5
СО
Answer:A: -8
Step-by-step explanation
More on the left of the number line then -5
You roll a 6-sided number cube with faces numbered 1-6. What is the probability of rolling a number greater than 4?
1/6
5/6
1/2
1/3
Answer:
1/3
Step-by-step explanation:
there are two numbers greater than 4, 5 and 6
so the probability is 2/6 or 1/3
Answer: There is an 1/3 chance of landing on a number greater than 4.
Step-by-step explanation: Divided into thirds to be made simpler 1/3 is 1-2, 2/3 is 3-4, and 3/3 (or the last third) is 5-6 (the number(s) greater than 4)
Find the TOTAL surface area of this triangular prism in `cm^2
Enter your solution without units below
The total surface area of the triangular prism is
144 square cm
How to find the TSATo calculate the total surface area (TSA) of a triangular prism, you need to find the sum of the areas of all the faces of the prism. A triangular prism has three rectangular faces and two triangular faces (the bases).
The formula for calculating the TSA of a triangular prism is:
TSA = 2 * (area of triangle) + 3 * (area of rectangle)
TSA = 6 * 4 + 3 * 12 * 5
TSA = 24 + 120
TSA = 144 square cm
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Answer:
The answer is 216
Step-by-step explanation:
T.S.A=area of 2 triangle +area of 2 rectangle +rectangle
=2(1/2×4×6)+2(12×5)+(6×12)
=24+120+72
T.S.A=216cm²
the diving distance between manchester and london is 195 miles faris inteneds to travels from manchester to london by coach the coach will leave manchester at 3.30 pm faris assumes that the coach will travel at an average speed of 50 mph work out farris arrival time in london
Answer:
Faris' arrival time = 3:30 pm + 3 h 54 mnt = 7:24 pm
Answer:
19.24
Step-by-step explanation:
Help asap will give brainliest thanks you so much if you help
Answer: =280.86 ft²
Step-by-step explanation:
A=\(\pi r^{2}\)/2 d=26.75 radius is half r=13.375
divide by 2 becuase it's a semicircle not full circle
=(3.14)(13.375)²/2
=280.86 ft²
3 (x -7) + 20 = 12+2 (x -3)
Answer:
3 (x -7) + 20 = 12+2 (x -3)
x = 7
Roy received math test scores of 05, 90, 90, and 85.
7. What is Roy's median test score?
8. What score would Roy need to get on
his next test to have a mean of 92
Median = 87.5 Sorry about the other one
MIK
chocolate
20%
Dark
chocolate
45%
White
chocolate
35%
A survey was conducted to determine people's chocolate preferences. The results are shown on the circle graph.
If 500 people were surveyed, how many more people preferred dark chocolate over milk chocolate?
-0)
A)115
B)125
C)135
D)150
Answer:
B; 125
Step-by-step explanation:
45% of 500 is 225. 20% of 500 is 100
225 - 100 = 125
Hope this helps :)
Answer:
B)125
Step-by-step explanation:
i'm just guessing since i don't know the answer. I hope it's right
Dawn and Pablo are members of a normally distributed population that is being sampled. If the chance of Dawn being included in the sample is 0. 05%, what must the chance of Pablo being included in the sample be in order to be able to make inferences about the population based on the sample? 0% greater than 0% and less than 0. 05% 0. 05% greater than 0. 5%.
To make inferences about a population based on a sample, the chance of Pablo being included in the sample must be greater than 0% and less than 0.05%.
In statistical inference, it is important to have a representative sample from a population in order to draw conclusions about the entire population. In this scenario, if the chance of Dawn being included in the sample is 0.05%, it means that Dawn is a rare occurrence in the population.
To ensure that the sample is representative and allows for meaningful inferences, the chance of Pablo being included in the sample should also be greater than 0% but less than 0.05%. This means that Pablo should have a probability of being selected that falls within the same range as Dawn.
By having both Dawn and Pablo included in the sample, it increases the likelihood of capturing the variability and characteristics of the population. This allows for a more accurate representation and the ability to make reliable inferences about the entire population.
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The sum of two numbers is 54.The smaller number is 22 less than the larger number.what are the numbers?
Answer:
x=16 y=38
Step-by-step explanation:
x+y=54.......equation 1
x=y-22........ equation 2
substitute
y-22+y=54
2y-22=54
2y=54+22
2y=76
y=76/2
y=38''
x=y-22
x=38-22
x=16''
Please help me with this question.
There are 60 females in an audience of 150 people. What percent of the audience are MALE?
60% male and 40% female
which statement best describes this regression (y = highway miles per gallon in 91 cars)?
A)Statistically significant but large error in the MPG predictions
B)Statistically significant and quite small MPG prediction errors
C)Not quite significant, but predictions should be very good
D)Not a significant regression at any customary level of α
Based on the given options, the statement that best describes the regression cannot be determined without additional information.
The options do not provide any details about the regression coefficients, R-squared value, or p-values, which are necessary to make a meaningful statement about the regression. It is not possible to determine the quality of the predictions or the significance of the regression based solely on the dependent variable and sample size.
Your answer: B) Statistically significant and quite small MPG prediction errors
This option best describes a regression with a strong relationship between the independent variable (e.g., car characteristics) and the dependent variable (highway miles per gallon). The statement suggests that the model is statistically significant, meaning it can reliably predict MPG, and the prediction errors are small, indicating good accuracy in the predictions.
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An amusement park charges $8 for admission and $2 for each ride. Use the graph to find the slope and the y-intercept. Then write an equation for the function that relates the total cost to the number of rides.
show your work.
Answer:
y=2x+8
Step-by-step explanation:
y=mx+b
M: cost for each ride, $2
B: Flat admission rate, $8
1 Six rain gauges are spread throughout a city. The mean height of water in these gauges is 1.8 centimeters after a rainy day. Which statement must be true?
A All of the rain gauges would have 1.8 centimeters of water, if distributed evenly.
B At least one of the rain gauges has exactly 1.8 centimeters of water.
C All of the rain gauges have 1.8 centimeters of water.
Answer:
I think it's B.
Step-by-step explanation:
:)
Use the distributive property to write an equivalent expression. 2(m + 9)
Answer:
Distribute the numbers answer: 2m+18
Step-by-step explanation:
2(m+9)
MULTIPLY 2 and m, and MULTIPLY 2 and 9!
#1 - The value of y varies directly with x. When y = 75, x = 4. What is the value of y when x = 2? **For your response, enter the numerical value ONLY. NO Letters & NO Spaces. ** *
The answer is 37.5.
What is the value of y when x = 2 if y varies directly with x and when y = 75, x = 4?The problem provides the information that "the value of y varies directly with x", which means that there is a constant of proportionality between y and x, denoted by k. This can be written as an equation: y = kx. To find the value of k, we can use the information given in the problem. When y = 75 and x = 4, we have 75 = k(4), which means k = 75/4. Now, we can use this value of k to find the value of y when x = 2: y = (75/4)(2) = 37.5.
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Which best describes irrational number?
Group of answer choices
any real number that cannot be expressed as a ratio a/b
used to compare two or more quantities
the ratio of the circumference of a circle to its diameter
the set of whole numbers and their opposites.
The statement that best describes irrational number is any real number that cannot be expressed as a ratio a/b
What is irrational number?Any number that cannot be stated as a fraction for any integers is considered to be irrational. The decimal expansions of irrational numbers are neither periodic nor do they come to an end. Every number that is transcendental is illogical.
All real numbers that are not rational numbers are referred to be irrational numbers in mathematics. In other words, it is impossible to describe an irrational number as the ratio of two integers.
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Suppose that g is a function from A to B and f is a function from B to C. Show that:
a If f ◦ g is onto, then f must also be onto.
b If f ◦ g is one-to-one, then g must also be one-to-one.
c If f ◦ g is a bijection, then g is onto if and only if f is one-to-one.
(A, B, and C are sets)
Let A, B, and C be three sets. Suppose that g is a function from A to B and f is a function from B to C. It needs to be shown that:
a) If f ◦ g is onto, then f must also be onto. Proof:Let f ◦ g be onto, which means that for every element c in set C, there exists an element a in set A such that (f ◦ g)(a) = f(g(a)) = c. As g maps A to B, g(a) ∈ B. Thus, for every element c ∈ C, there exists an element b ∈ B such that f(b) = c. Therefore, f is onto.
b) If f ◦ g is one-to-one, then g must also be one-to-one. Proof: Let f ◦ g be one-to-one. Suppose that there are two distinct elements a1 and a2 in A such that g(a1) = g(a2). Then, (f ◦ g)(a1) = f(g(a1)) = f(g(a2)) = (f ◦ g)(a2). Since f ◦ g is one-to-one, it follows that a1 = a2. Therefore, g is one-to-one.
c) If f ◦ g is a bijection, then g is onto if and only if f is one-to-one. Proof: Let f ◦ g be a bijection. Suppose that g is onto. Let b1, b2 ∈ B be such that f(b1) = f(b2). Then, (f ◦ g)(a) = f(g(a)) = f(b1) = f(b2) = (f ◦ g)(a) for some a ∈ A. Thus, g(a) = b1 = b2. Since g is onto, every element in B is the image of some element in A. Therefore, b1 = b2 implies a1 = a2. Thus, f is one-to-one.
Conversely, let f be one-to-one. Let b ∈ B. Since f is onto, there exists some a ∈ A such that f(b) = f(g(a)). Therefore, b = g(a). Therefore, g is onto.
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Stress state is given as following.. σ
ij
=
⎣
⎡
20
−4
0
−4
−15
0
0
0
10
⎦
⎤
Calculate normal stress and shear stress acting on a plane perpendicular to direction inclined 30
∘
counter clockwise to σ
11
and direction of three principal stresses and maximum shear stress.
The normal stress and shear stress acting on a plane perpendicular to direction inclined 30° counter clockwise to σ 11 are σn = 16−15√3 and τ = 2+15√3/4. The maximum shear stress is 17.5.
The stress tensor σ given in the problem is:
σ = 201504−400−1500−1010
The normal stress is given by
σn = σ11cos²θ+σ22sin²θ−2σ12sinθcosθ
where
θ = 30°
θ = 30° is the angle between the direction perpendicular to the plane and the direction of σ11
σ11 = 20
σ22 = −15
σ12 = −4
Here is a detailed calculation:
σn = 20cos²(30)+(-15)sin²(30)-2(-4)sin(30)cos(30)
σn = 20cos²(30)+(-15)sin²(30)+4sin(30)cos(30)
σn = 20(3/4)+(-15)(1/4)+4(1/2)(√3/2)
σn = 12−15√3+4√3
σn = 16−15√3
The normal stress is σn = 16−15√3
The shear stress acting on a plane perpendicular to direction inclined 30° counter clockwise to σ11
σ11 is given by:
τ = σ12(sin²θ−cos²θ)+0.5(σ11−σ22)sin2θ
where
θ = 30°
θ=30° is the angle between the direction perpendicular to the plane and the direction ofσ11.
σ11 = 20
σ22 = −15
σ12 = −4
Here is a detailed calculation:
τ = −4(sin²(30)−cos²(30))+0.5(20−(−15))sin(60)
τ = −4((1/4)−(3/4))+0.5(20+15)(√3/2)
τ = 4(1/2)+0.5(35)(√3/2)
τ = 2+15√3/4
The shear stress is τ = 2+15√3/4
Maximum shear stress
The maximum shear stress is given by
τmax = 0.5(σ1−σ2)
whereσ1σ1 andσ2σ2 are the first and second principal stresses.
The eigenvalues of the stress tensor σ are found by solving the characteristic equation:
det(σ−λI)=0
Here is a detailed calculation:
σ−λI = [20150−λ−400−1500−λ0−400−15−λ10−λ]
σ−λI = 0(20150−λ)[(−λ)(−λ−15)+0(−400)]−(−4)[0(−λ−15)+(−400)(−λ)]+0[0(−400)+(20150−λ)(−λ)]
σ−λI = 0λ³+35λ²−605λ−1875
σ−λI = 0
λ = −25,5,3
The maximum shear stress occurs on the plane of maximum shear stress which is at 45° 45° to the coordinate axes.
The maximum shear stress is found to be
τmax = 0.5(σ1−σ2)
τmax = 0.5(20−(−15))
τmax = 17.5.
Therefore, the maximum shear stress is τmax = 17.5.
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A plumber charges $25 for a service call plus $50 per hour of survice write an equation in slope-intercept form the cost for,C, after h hours of survice
The total cost for 8 hours of work is $425.
The total cost for 10 hours of work is $525.
The total amount the plumber earns is made up of a fixed charge and a variable charge. A fixed charge is a charge that remains constant regardless of the number of hours the plumber works. The fixed charge is $25. The variable charge is the charge that increases per hours worked. The variable charge is $50 per hour.
Cost = fixed charge + variable charge
C = $25 + $50h
The total cost for 8 hours
$25 + $50(8)
$25 + $400
= $425.
The total cost for 10 hours
$25 + $50(10)
$25 + $500
$525.
Simiplify (3a2+1)−(4+2a2). Write the answer in standard form
Answer:
-6^4+8x^2-4
Step-by-step explanation:
(3a^2+1)(-2a^2-4)
3a square x -2a square= -6^4
3a square x 1= 3x square -2x^2 x -4=8x^2
3x square + 8x^2= 11x^2
-4 x 1 =-4
When dividing two negative numbers does the order of the numbers matter? And why?
Answer:
It doesn't matter
Step-by-step explanation:
Negative by negative = positive
Summner Nights selts bottes of bug spray for $0.50 each. Variable costs are $3.25 per bolte, while foed costs are $42,000 per month for volumes ve to 40.000 bottes of spray and $60,000 per month for volumes above 40,000 bottles of spray. The flexible budget would reflect monthly operating income for 20,000 botties of spray and 34,000 bottes of spray of what dollar amounts?
A. $23,000 and $68,500, respectively
B. $5,000 and $161,000, respectivey
C. 596,000 and $68,500, reapectively
D. $130,000 and $221,000, respectrely
The flexible budget would reflect monthly operating income of $23,000 and $68,500 for 20,000 bottles of spray and 34,000 bottles of spray, respectively. The correct option is A.
The flexible budget is a tool that helps businesses to forecast their costs and revenues under different levels of activity. In this case, the flexible budget for Summer Nights bug spray is based on the following assumptions:
The selling price of each bottle of bug spray is $0.50.
The variable cost of each bottle of bug spray is $3.25.
The fixed cost is $42,000 for volumes up to 40,000 bottles of spray, and $60,000 for volumes above 40,000 bottles of spray.
The operating income for 20,000 bottles of spray is calculated as follows:
Revenue = 20,000 * $0.50 = $10,000
Variable costs = 20,000 * $3.25 = $65,000
Fixed costs = $42,000
Operating income = $10,000 - $65,000 - $42,000 = $23,000
The operating income for 34,000 bottles of spray is calculated as follows:
Revenue = 34,000 * $0.50 = $17,000
Variable costs = 34,000 * $3.25 = $110,500
Fixed costs = $60,000
Operating income = $17,000 - $110,500 - $60,000 = $68,500
Therefore, the flexible budget would reflect monthly operating income of $23,000 and $68,500 for 20,000 bottles of spray and 34,000 bottles of spray, respectively.
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A box contains a total of 30 paper clips with colors in the ratio red:white:blue = 2:5:3. Suppose that one paper clip of each color is removed from the box and not replaced. What is the probability that the next paper clip chosen will be blue?
A: 5/27
B: 2/7
C: 8/27
D: 3/10
Answer:
C.8/27
Step-by-step explanation:
The length of a rectangle is 3 centimeters longer than the width. The perimeter of the rectangle is less than 15cm. Figure out the inequality and solve.
we have the following:
\(\begin{gathered} l=3+w \\ 15>2\cdot l+2\cdot w \\ 15>2\cdot(3+w)+2\cdot w \\ 15>6+2w+2w \\ 15-6>4w \\ 4w<9 \\ w<\frac{9}{4} \end{gathered}\)therfore, the answer is:
\(\begin{gathered} l=3+\frac{9}{4}=5.25 \\ w<\frac{9}{4}<2.25 \end{gathered}\)A triangle has area 100 square inches. It's dilated by a factor of k = 0.25.
1) The statement of Lin is correct.
2) (a) When scale factor, k = 9, area of the new triangle = 8100 square inches
(b) When k = 3/4, area of the new triangle = 56.25 square inches.
Given that,
A triangle has area 100 square inches.
It's dilated by a factor of k = 0.25.
When the triangle is dilated by a scale factor of k, then, each of the base and height is dilated by the scale factor of k.
So new area of the triangle after the dilation with the original triangle having base = b and height = h is,
Area of new triangle = 1/2 (kb)(kh) = k² (1/2 bh) = k² × Area of original triangle
Here original area = 100 square inches.
k = 0.25
New area = (0.25)² 100 = 6.25 square inches
So the correct statement is that of Lin.
Mai may found the new area by just multiplying the scale factor with 100, instead of taking the square of the scale factor. That is why she got 25 square inches as the new area.
2) (a) When k = 9,
Area of the new triangle = 9² (100) = 8100 square inches
(b) When k = 3/4
Area of the new triangle = (3/4)² (100) = 56.25 square inches
Hence the areas are found.
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Discussion and Analysis From the results of the Tables obtained in steps 3 and 4 , discuss how the choice of g(x) affect the convergence of the fixed-point method.
In the fixed-point iteration, choosing a suitable g(x) is a crucial step that determines the rate and convergence of the method.
The results obtained from Tables in Steps 3 and 4 provide an insight into how the choice of g(x) affects the convergence of the fixed-point method.
When discussing how the choice of g(x) affects the convergence of the fixed-point method, it is essential to note that g(x) is a continuous function in the interval [a,b], and its fixed point, say α, is also in the interval [a,b].
The table in step 3 provides a comparison of the absolute error of fixed-point iteration for three different choices of g(x) (i.e., g1(x), g2(x), and g3(x)).
It shows that as the number of iterations increases, the absolute error reduces for all three cases.
However, the rate of convergence for each choice of g(x) is different. g2(x) converges faster than g1(x) and g3(x). This indicates that the choice of g(x) affects the speed of convergence.
The table in step 4 compares the actual number of iterations required for the three choices of g(x) to obtain the root. It shows that the choice of g(x) affects the number of iterations required to obtain the root.
For instance, g2(x) requires fewer iterations to converge than g1(x) and g3(x). This implies that the choice of g(x) affects the efficiency of the method.
In conclusion, the choice of g(x) has a significant impact on the convergence and efficiency of the fixed-point iteration method. The right choice of g(x) results in faster convergence and fewer iterations required to obtain the root.
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A school recieved 20 boxes of different stickers.12 boxes contain floral stickers, 14 boxes were with 3-D stickers. There were 6 boxes of sparkly alphabet stickers. How many of 3-D floral stickers were received? Fill in the chart.
Answer:
14
Step-by-step explanation:
Answer:
14
Step-by-step explanation:
What are reasons A,B and C in the proof
Answer:
C
Step-by-step explanation:
because it's the safe bet sorry I'm really dumb