the length and breadth of the rectangle is L = 4, B =16
Let L and B stand for length and width, respectively.
a rectangle is 4 times a long as it is wide
L=4B …….(1) (1)
L1 and B1 should represent the revised length and width.
L1=(L+4)
B1=(B-1)
Area = L1 + B1 + 60.
=> (L+4)×(B-1)=60 …….(2) (2)
Using (1)-
=> (4B+4)×(B-1) =60
=> 4×(B^2–1) = 60
=> B^2–1 = 15
=> B^2 = 16
=> B = +4 or -4
B=4 inches because breadth is always positive.
L = 4 B = 16 inches.
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In a tsunami, the wave speeds (in meters per second) can be modeled by s(d)=√9.8d, where d is the depth (in meters) of the water. Estimate the depth of the water when the wave speed is 200 meters per second
The depth of the water when the wave speed is 200 meters per second is 4081.63m
What is Speed?Speed is the time rate at which an object is moving along a path, while velocity is the rate and direction of an object's movement.
Given,
In a tsunami, the wave speeds (in meters per second) can be modeled by s(d)=√9.8d,
Where d is the depth
We need to find the depth when speed is 200 meters per second
s(d)=√9.8d,
200=√9.8d,
Square on both sides
40000=9.8d
Now divide both sides by 9.8
d=4081.63m
Hence, the depth of the water when the wave speed is 200 meters per second is 4081.63m
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7. Solve 10x + 8 = 8x - (- 16) for x.
Answer:
Answer is 4.
x = 4
Step-by-step explanation:
Solve for x in the diagram below.
180-(45+15) = 120
4x+120=180
4x=60
x=15
vera claimed the solution set on the number line represents the inequality . which error did vera make?
The error that Vera made is she used the wrong number in her inequality to claimed the solution set on the number line represents the inequality.
What is inequality?In mathematics, "inequality" refers to a connection between two expressions or values that are not equal to one another. The equation-like form of the formula 5x 4 > 2x + 3 has an arrowhead in lieu of the equals sign. It is an illustration of inequity. This shows that the left half, 5x 4, is bigger than the right part, 2x + 3. Finding the x numbers for which the inequality holds true is what we are most interested in. An inequality in mathematics is a relation that compares two numbers or other mathematical expressions in an unequal way. The majority of the time, size comparisons between two numbers on the number line are made.
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Which of the following PivotTable layouts displays all fields in separate columns and subtotal rows at the bottom of each group, similar to a table?
a. Compact
b. Outline
c. Tabular
d. Condense
The correct option is tabular
What is a pivot table and what is it used for?An interactive way to quickly summarize large amounts of data is with a pivot table. A Pivot Table can be used to thoroughly analyze numerical data and provide unexpected answers about your data. Querying vast amounts of data in a variety of user-friendly ways is one task that a pivot table is especially useful.
What is the main advantage of using a pivot table?Data are easily summarized in pivot tables. Pivot tables can be a huge help if you're looking for a quicker and easier way to summarize data. It will help any user create a brief summary from a large amount of disorganized data that is arranged in rows and columns.
From the above information
we can understand that
out of the 4 options
the PivotTable layouts displays all fields in separate columns and subtotal rows at the bottom of each group, similar to a table
is Tabular
hence the solution is Tabular
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The radius of a circular disk is given as 27 cm with a maximum error in measurement of 0.2 cm.
1) Use differentials to estimate the maximum error in the calculated area of the disk. (Round your answer to two decimal places.)
2)What is the relative error? (Round your answer to four decimal places.)
3)What is the percentage error? (Round your answer to two decimal places.)
The maximum error in the calculated area of the disk is 33.93 square cm. The relative error is 0.0148. The percentage error is 1.48%.
a. The area [tex]$\mathrm{A}$[/tex] of a circle with radius [tex]$\mathrm{r}$[/tex] is given by the following formula from Geometry:
[tex]$A=\pi r^2$[/tex]
The question provides us the following information:
radius [tex]$r=27 \mathrm{~cm}$[/tex], maximum radius measurement error [tex]$\Delta r=0.2 \mathrm{~cm}$[/tex]
Using linear differentials we get the error in the calculation of the area of this disk [tex]$\Delta A$[/tex] from (1) as follows:
[tex]$\Delta A=2 \pi r \Delta r \Longrightarrow|\Delta A|=2 \pi r|\Delta r|$[/tex]
Using the information from (2) in (3) yields
[tex]$|\Delta A|=2 \pi(27)(0.2)=33.93 \mathrm{~cm}^2 \text {. }$$[/tex]
The maximum error in the calculated area of the disk is 33.93 square [tex]$\mathrm{cm}$[/tex].
b. The relative error is calculated using (1) and [tex]$r=27 \mathrm{~cm}$[/tex] as follows:
Relative Error [tex]$=\frac{|\Delta A|}{A}=\frac{33.93}{\pi\left(27^2\right)}=0.0148$[/tex].
The relative error is 0.0148.
c. The percentage error is the relative error in part b. above multiplied by [tex]$100 \%$[/tex] to give us
Percentage Error [tex]$=100 \% \times$[/tex] Relative Error [tex]$=100 \% \times 0.0148=1.48 \%$[/tex].
The percentage error is [tex]$1.48 \%$[/tex].
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please help if you can I’m stuck
Answer:
• Area of parallelogram = 270 in.²
• Area of square = 225 in.²
• Area of composite figure = 495 in.²
Step-by-step explanation:
We are given a composite figure made up of a parallelogram and a square and told to find its area.
To do this, we are told first to find the area of the parallelogram. The formula for the area of a parallelogram is:
[tex]\boxed{\mathrm{Area \ of \ parallelogram = base \times height}}[/tex].
From the figure, we can see that, for the parallelogram, height = 18 in. and base = 15 in. (since opposite sides of a parallelogram are equal).
Using this information, we can calculate the area of the parallelogram:
Area = base × height
= 15 in. × 18 in.
= 270 in.²
Next, we have to find the area of the square using the formula:
[tex]\boxed{\mathrm{Area \ of \ square = side \times side}}[/tex].
From the figure, we can see that the length of a side of the square is 15 in.
Therefore, using the formula above, we can calculate the area of the square:
Area = side × side
= 15 in. × 15 in.
= 225 in.²
Now that we know the respective areas of the two shapes that make up the composite shape, we simply have to add the areas together:
Area of composite figure = 270 in² + 225 in²
= 495 in.²
David pays a flat rate per day to rent his bike. The cost of David's bike rental plan, B(t), can be represented by which of the following functions?
A. B(t) = 5(0,6)^t
B. B(t) = 5(1 + 0.6)^t
C. B(t) = 0.6t + 5
D. B(t) = -0.6t + 5
The function that represents the cost of David's bike rental plan, B(t) is C. B(t) = 0.6t + 5
What is an equation?An equation is the statement that illustrates the variables given. In this case, two or more components are taken into consideration to describe the scenario.
From the information, David pays a flat rate of $5 and and extra $0.6 per day to rent his bike. The cost of David's bike rental plan, B(t). Let the extra day be illustrated by t.
This will be:
B(t) = 5 + (0.6 × t)
B(t) = 5 + 0.6t
The correct option is C.
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Complete question
David pays a flat rate of $5 and and extra $0.6 per day to rent his bike. The cost of David's bike rental plan, B(t), can be represented by which of the following functions?
A. B(t) = 5(0,6)^t
B. B(t) = 5(1 + 0.6)^t
C. B(t) = 0.6t + 5
D. B(t) = -0.6t + 5
write a question of interest for which a two-sided t test for the difference in populations means can be used to answer example
To determine whether the mean weight of two distinct turtle species is equal. It would take too much time and money to weigh each turtle because there are thousands of them in each group.
A two-sample t-test is used to determine whether or not genuine population means are equal.
The accompanying null hypothesis is usually used in a two-sample t-test:
[tex]H_0[/tex]: The two population averages are equivalent when 1 = 2.
The alternative hypothesis might have two tails, a left or right tail, or none at all:
Two-tailed [tex]H_1[/tex]: μ1 ≠ μ2 Neither of the two population means is equal.
(Left-tailed) [tex]H_1[/tex]: Population 1 mean is lower than population 2 mean by a factor of 1.
[tex]H_1[/tex] (right-tailed): Populations 1 and 2 have mean values that are higher than each other.
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The cost of 6 sandwiches and 4 drinks is $36. The cost of 4 sandwiches and 6 drinks is $34. how much does one sandwich cost?
Answer: $4/sandwich
Apply the distributive property to factor out the greatest common factor. 75+20=75+20=.
Using the distributive property, the greatest common factor of 75+20 is 5(15+4).
What is distributive property?The distributive property of binary operations in mathematics generalizes the distributive law, which states that in elementary algebra, equality is always true.
For instance, in basic mathematics, one has to According to one, addition is distributed more evenly than multiplication.
So, the largest number that will split two values is the greatest common factor. Two values are available: 75 and 20.
Each has a set of numbers that when added together equal the total.
We must identify the most important quality or area where they most agree.
Each possesses the following elements:
75: 1,3,5,15,25, 75
20: 1, 2, 4, 5, 10, 20
Each has 5, making this the GCF.
As a result, we write the expression as 5(_+_).
We calculate the matching factor by multiplying each term by 5.
75/5= 15
20/5=4
5(15+4)
Therefore, using the distributive property, the greatest common factor of 75+20 is 5(15+4).
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Correct question:
Apply the distributive property to factor out the greatest common factor.
75 + 20 =
Sir Ronald Fisher's F-distribution is used in many statistical tests. Which one of the following uses the F-distribution for their test statistic?
a. To compare several population means simultaneously
b. Comparison of samples to see if they came from populations with the same proportions.
c. Test of two samples to see if they are from populations with the same median
The one which uses Sir Ronald Fisher's F-distribution for the test statistic is to compare several population means simultaneously.
What is the F-distribution?The F-distribution was developed by Sir Ronald Fisher to study the behavior of two variances from random samples taken from two independent normal populations. The F-distribution allows us to use a F statistic to compare two populations.
The F-distribution is also known as a right-skewed distribution used commonly in another statistical test called an Analysis of Variance (ANOVA). For ANOVA tests we can use the F-distribution to check whether the variance among the means of two populations significantly differ. The F-distribution can also be used in regression analysis to compare the fit of different models.
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To test the effect of a new exercise routine on muscle growth, a researcher sets up the following experiment: 60 volunteers subjects (40 men and 20 women) of average build are selected to participate in the study. Their body mass and muscle sizes (biceps, thighs, etc.) are measured. The researcher gives all the men a DVD with the new exercise routine, and the women a DVD with a standard routine, but only the researcher knows this.
The results of the experiment are likely to be invalid mostly because .
The treatment group and control group were not the same size.
The subjects were volunteers.
The subjects did not know if they were getting the real treatment.
The gender of the subject is a confounding variable in this situation.
The results most probably be invalid because the subjects were voluntary sample.
What is sample in statistics?
Any quantity from a population sample is referred to as a sample statistic. A sample is a collection of components chosen at random from the population. The parameters are the characteristics of the population, and statistics are the characteristics of the sample data. Both the population and the sample are crucial components of statistics.By utilising sample statistics, inferential statistics provides strategies for generalising population features. Consider the following statistic: "50% of kindergarten students in India watch TV for more than 20 hours a week." Not all kindergarten students in India were polled regarding their TV viewing habits in order to reach this conclusion. Instead, by using sample space to estimate the population parameters, this conclusion would have been reached.To know more about statistics check the below link:
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Oliver is buying equipment for his restaurant. He can buy two blenders for $396 or three blenders for $479. Find which deal has the best unit price per blender, then record the best unit price!
Hence, the deal of $[tex]479[/tex] is best unit price per blender.
What is the equation?
The definition of an equation is a mathematical statement that shows that two mathematical expressions are equal.
Here given that,
Oliver is buying equipment for his restaurant. He can buy two blenders for $[tex]396[/tex] or three blenders for $[tex]479[/tex].
So,
Oliver buying two blenders at $[tex]396[/tex] so the cost of one blender is
i.e., [tex]\frac{396}{2}=198[/tex]$
Oliver buying two blenders at $[tex]479[/tex] so the cost of three blenders is
i.e., [tex]\frac{479}{3}=159[/tex]$
Hence, the deal of $[tex]479[/tex] is best unit price per blender.
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Shirley is drawing triangles that have the same area. The base of each triangle varies inversely with the height. What are the possible base and height of a second triangle if the first triangle's base is 12 and its height is 8?.
The possibile base and height of second triangle is option 4: 16 and 6.
We are given the height and base are inversely proportional for the triangle. Based on this, the area of triangle is given by the formula -
Area = 1/2 × base × height
Keep the values in formula to find the area of first triangle -
Area = 1/2 × 12 × 8
Area = 6 × 8
Area = 48
Now, option a in the choices is incorrect, because there is no variation seen in the two values. Trying the other three options to find the dimensions of same area.
Option 2: 60 and 36
Area = 1/2 × 60 × 36
Area = 30 × 36
Area = 1080
Option 3: 120 and 80
Area = 1/2 × 120 × 80
Area = 60 × 80
Area = 4800
Options 4: 16 and 6
Area = 1/2 × 16 × 6
Area = 8 × 6
Area = 48
Hence, option 4 16 and 6 are correct base and height.
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The complete question is attached in the figure.
if the angle bisector of each angle of a triangle lies on the same line as the perpendicular bisector of the opposite side, what kind of triangle is it?
The triangle is an Equilateral triangle.
What is an equilateral triangle?
In geometry, an equilateral triangle is a triangle in which all three sides are equal. In an equilateral triangle, all three angles are 60 degrees.
Angle bisector means a bisector which divides an angle into two equal parts. A perpendicular bisector is a line which makes 90 degrees with the base and divides it into two equal parts.
In the case of an equilateral triangle, the angle bisector of each angle of a triangle and the perpendicular bisector of the opposite side is the same.
Hence the answer is an equilateral triangle.
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this is not a test so stop taking it down
someone pls answer this
Answer:
Below
Step-by-step explanation:
Expand the parentheses to get
1/5 b - 2a + 1/2 b + 4a gather like terms to get
2a + 7/10 b
those who obtained the correct umbrella leave, while everyone else picks again randomly. this process continues until everyone has gotten his or her umbrella. what is the expected number of rounds needed?
The intercountry differences in participation rates in organ-donation programs is due to STATUS QUO BIAS.
Status quo bias can be defined as the emotional prejudice to the way things are and any change is considered a loss.
This status quo bias phenomenon often affect decision making in an individual. In some countries, organ donation is widely accepted by the people while it is not accepted in some other countries. The only reason for this is because of just the way things are done usually in those countries.
Another example of status quo bias will be saving money towards retirement. Everyone sees this as a The intercountry differences in participation rates in organ-donation programs is due to STATUS QUO BIAS.
Status quo bias can be defined as the emotional prejudice to the way things are and any change is considered a loss.
This status quo bias phenomenon often affect decision making in an individual. In some countries, organ donation is widely accepted by the people while it is not accepted in some other countries. The only reason for this is because of just the way things are done usually in those countries.
Another example of status quo bias will be saving money towards retirement. Everyone sees this as a norm.
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Luna Brennan's is depositing $320 in currency,
$1.55 In coins, a check for $213.40, and a check for
$400.25 What is the total deposit?
the Total deposit will be $935.2.
What is the arithmetic operation?
The four fundamental operations of arithmetic are addition, subtraction, multiplication, and division of two or more quantities. Included in them is the study of numbers, especially the order of operations, which is important for all other areas of mathematics, including algebra, data management, and geometry. The rules of arithmetic operations are required in order to answer the problem.
Luna Brennan's is depositing $320 in currency, currency, $1.55 In coins, a check for $213.40, and a check for $400.25.
So Total deposite will be $320+$1.55+ $213.40+$400.25 = $935.2
Hence the Total deposit will be $935.2
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PLEASE HELP ASAP
Part A: A 30-kilogram mass is moving across a horizontal surface at 5.0 m/s. The mass comes to
a stop over 6 seconds. What is the acceleration?
Part B: What is the magnitude of the force required to bring the object to a stop?
Answer:
Below
Step-by-step explanation:
acceleration = Δv / Δt = - 5/6 m/s^2
( negative sign shows it to be a deceleration)
F = ma
= 30 ( -5/6) = -25 N or 25 N in the direction opposite of the velocity ( like a frictional force)
What is -2x+2 (1-4x) = 52?
Answer:x=-5
Step-by-step explanation:
f two balls are drawn from a bag containing 2 white, 4 red and 5 black balls. what isthe chance thata. both the balls are redb. one is red and the other black ?
a) The probability of both balls drawn from the bag be red is 6/55
b) The probability of one ball red and other ball black is 4/11
Given,
Number of white balls in the bag = 2
Number of red balls in the bag = 4
Number of black balls in the bag = 5
Two balls are drawn from the bag.
Here,
a) Find the probability of both balls be red.
(²C₀ x ⁴C₂ x ⁵C₀) / ¹¹C₂
= (1 x 6 x 1)/ 55
= 6/55
That is,
The probability of both balls be red is 6/55
b) Find the probability of one ball red and other ball black
(²C₀ x ⁴C₁ x ⁵C₁) / ¹¹C₂
= (1 x 4 x 5) / 55
= 20/55
= 4/11
That is,
The probability of one ball red and other ball black is 4/11
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Please help! Just Simplify the expression!
1. Simplified Solution: [tex]a^9[/tex]
2. Simplified Solution: [tex]x^1^0[/tex]
3. Simplified Solution: [tex]1024a^1^0b^1^5[/tex]
4. Simplified Solution: [tex]x^2[/tex]
5. Simplified Solution: [tex]\frac{1}{x^3}[/tex]
6. Simplified Solution: [tex]1[/tex]
7. Simplified Solution: [tex]\frac{4a^6}{b^8}[/tex]
8. Simplified Solution: [tex]32768x^1^0[/tex]
9. Simplified Solution: [tex]\frac{1}{x^1^2y^2^1}[/tex]
10. Simplified Solution: [tex]x^1^4y^1^1[/tex]
11. Simplified Solution: [tex]-\frac{3}{x^4}[/tex]
12. Simplified Solution: [tex]\frac{xy^1^1}{4}[/tex]
13. Simplified Solution: [tex]x^7[/tex]
14. Simplified Solution: [tex]xy^2[/tex]
15. Simplified Solution: [tex]1[/tex]
16. Simplified Solution: [tex]\frac{1}{1000x^1^5y^9}[/tex]
17. Simplified Solution: [tex]\frac{y^3}{x^2}[/tex]
18. Simplified Solution: [tex]\frac{1}{16x^4y^1^0}[/tex]
19. Simplified Solution: [tex]\frac{xy^2}{3}[/tex]
20. Simplified Solution: [tex]-\frac{y^1^2}{9x^4}[/tex]
21.Simplified Solution: [tex]3x^2y^2[/tex]
____________________________________________________
Hope this helps! And good luck! :D
I NEED HELP!! 100 points!!!!
Domain and range of G?
G = {( -8, 7 ), ( -9, 0 ), ( 3, 7 )}
Write answers as set notation
Answer:
domain {-9,-8,3}, range{0,7}
Step-by-step explanation:
domain is the set of all x values
range is the set of all y values
What is the value of x? Enter your answer as a decimal.
Triangle M N P with segment A B parallel to segment N P and A is between M and N and B is between M and P. M N equals 46.2 centimeters, A N equals 14 centimeters, M P equals 72.6 centimeters, and M B equals x.
The value of MB equal x which is equal to 50.6 as the two triangles are similar triangles.
Based on the given information, MNP has a segment AB which is parallel to NP. As AB and NP are parallel and MN is transverse. Therefore, ∠MAB ≅ ∠MNP. According to Angle – Angle property of similarity, triangle MNP and triangle MAB are similar triangle. If two pairs of corresponding angles are congruent in two triangles, then the triangles are similar. The corresponding sides of similar triangles will be in the same ratio. Hence,
MA/MN = MB/MP
MA = MN – AN = 46.2 – 14 = 32.2
Hence,
32.2/46.2 = x/72.6
x = 50.6
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Which phrase describes the algebraic expression 3 x minus 4?
the sum of three times a number and four
four less than three times a number
the quotient of three times a number less four
the difference between four and three
Answer: four less than three times a number
Step-by-step explanation:
4 - 3x
x beside a number is times a number so example 4 - ( 3 multiply X)
sorry if it doesnt make sense
Answer:
yo
Step-by-step explanation:
the person above is right
um did it on edge
help i give brainless its not that hard I just need help pls
Answer:
A. Linear
B. Non-linear
C. Linear
Step-by-step explanation:
A linear line has a consistent slope either going down (negative) or going up (positive.)
A. The x values are increasing by a constant rate of 1, and the y values are decreasing at a constant rate of 1. Therefore it is a linear relation.
B. The x values are increasing by a constant rate of 1, but the y-value repeats itself twice in the second and third column. Therefore it does not have a consistent slope and is not a linear relation.
C. The x values are increasing by a constant rate of 1, and the y- values increase by a constant rate of 2 except in column 4 making it a non-linear relation.
a statistician believes that the percent population growth rate of major cities has decreased compared to the last decade. to test his claim, he randomly selects major cities and compares the percent population growth between the years 2007 and 2017 to the percent population growth between the years 1997 and 2007. let d
Statisticians want to know if the hypothesized mean of the differences is less than zero for paired data. So, the null hypothesis is H0:μd=0, and the alternative hypothesis is Ha:μd<0.Option(b)
What is a null hypothesis?A null hypothesis proposes that certain characteristics of a population or development process are the same regardless of whether they differ or not. There is a difference, according to the alternative hypothesis. A null hypothesis can be rejected with a certain degree of confidence through hypothesis testing.
The alternative hypothesis can be supported if the null hypothesis is rejected. A null hypothesis test is a basis for science's falsification principle.
Question:A statistician believes that the percent population growth rate of major cities has decreased compared to last decade. To test his claim, he randomly selects major cities and compares the percent population growth between the years 2007 and 2017 to the percent population growth between the years 1997 and 2007. Let d=percent growth rate from 2007 to 2017−percent growth rate from 1997 to 2007. Identify the correct null and alternative hypothesis for a hypothesis test.
H0:μd≠0
Ha:μd=0
H0:μd=0
Ha:μd<0
H0:μd=0
Ha:μd>0
H0:μd=0
Ha:μd≠0
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Solve the system of linear equations by elimination.
4x + 3y = -5
-x+3y=-10
solution:
Answer:
x=1, y=-3
Step-by-step explanation:
We first see there is a 3y in both equations. We can completely eliminate the y term by subtracting the equations.[tex](4x+3y=-5)-(-x+3y=-10)[/tex]. This gives us (4x--x)=(-5--10), which is 5x = 5. So, x = 1.
Now we can plug this value in to solve for y. Let's plug it in to [tex]-x+3y=-10[/tex]. We get [tex]-1 + 3y=-10[/tex], so 3y = -9 and y = -3. Hope this helps!
How do I find this? I am sturggling lol
The table is completed below
Distance (cm) weight (newtons)
20 28
55 77
100 140
1 1.4
The maximum data in the y axis is 140
The maximum data in the x axis is 100
How to find fill the blankThe blank is filled by finding proportional relationship, this is calcualted by
let the constant of proportionality be k
20k = 28
k = 20/28
k = 1.4
55k = 55 * 1.4 = 77
? * k = 140
? = 140/k = 140/1.4 = 100
1 * k = 1 * 1.4 = 1.4
How high each value can go is the highest value in each axis and the is 100 for x axis and 140 for y axis
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