Answer:
general rule
an = 51 - 3 (n - 1)
a20 = -6
Explanation:
Looking at the first four terms of the series we see that each consecutive term is 3 less than the previous term. For example. 51 - 3 = 48, 48 - 3 = 45 and so on.
Therefore the general rule for the nth term is
\(a_n=51-3(n-1)\)note that the use of using n - 1 is that when n = 1 we have
a_1 = 51 - 3(1-1) = 51 - 0 = 51
in other words, n - 1 helps us in setting a1 = 51.
Now once we have the general rule, we now find a20
\(a_{20}=51-3(20-1)\)which simplifies to give
\(a_{20}=51-3\cdot19\)\(\therefore a_{20}=-6\)which is our answer!
what digit 7 sits in this number 714,583
Answer:
Hundred thousands place.
Answer:
In this case the number 7 would be located in the hundreds of thousands.
---
Thank you so much for participate in the community of Brainly.com
I hope help you :)
Kind regards, Antonio.
PLZ DONT LEAVE IN BLANK I WILL DO ANYTHING!!!! PLZ PLZ PLZ PLZ PLZ PLZ PLZ PLZ 20 Xp
The data below shows the scores of some students on a test:
29, 31, 27, 20, 25, 34, 24
Which box-and-whisker plot represents the data?
Answer: The answer is C.
Step-by-step explanation:
It is definitely not B because the average of the numbers compared to what that shows don't make sense.
The biggest number that you gave us is 34 but on option A, it looks like its 30 or 31. So that's not correct.
Finally, it can't be D because the biggest number shown there is 35 when it actually is 34.
I hope I was able to help!
Good luck and have a great day :)
Calculate the range, population variance, and population standard deviation for the following data set. If necessary, round to one more decimal place than the largest number of decimal places given in the data. 16,12,17,8,15,15,10,11,19,18
Answer:
\(Range = 11\)
\(\sigma^2 = 12.1\)
\(\sigma = 3.5\)
Step-by-step explanation:
Given
\(Data: 16,12,17,8,15,15,10,11,19,18\)
Solving (a): Range
This is calculated as:
\(Range = Highest - Least\)
Where:
\(Highest = 19\)
\(Least = 8\)
So:
\(Range = 19 - 8\)
\(Range = 11\)
Solving (b): The population variance
First, calculate the population mean using:
\(\mu = \frac{\sum x}{n}\)
So:
\(\mu = \frac{16+12+17+8+15+15+10+11+19+18}{10}\)
\(\mu = \frac{141}{10}\)
\(\mu = 14.1\)
So, the population variance is:
\(\sigma^2 = \frac{\sum(x - \mu)^2}{n}\)
\(\sigma^2 = \frac{(16 - 14.1)^2 + (12 - 14.1)^2 +............... + (19- 14.1)^2 + (18- 14.1)^2}{10}\)
\(\sigma^2 = \frac{120.9}{10}\)
\(\sigma^2 = 12.09\)
\(\sigma^2 = 12.1\) --- approximated
Solving (c): The population standard deviation.
This is calculated as:
\(\sigma = \sqrt{\sigma^2\)
\(\sigma = \sqrt{12.09\)
\(\sigma = 3.5\)
algebra 2
Can you help me pls
Answer:
ln25 = 3.219
ln50 = 3.912
ln22.3 = 3.105
lne^3 = 3lne = 3
ln0.45 = -0.799
Step-by-step explanation:
Calculator
N
50°
AOMN~ ARPQ
Find 0.
M
Ө
0 = [?]°
<
P
70°
R
Answer:
60°
Step-by-step explanation:
In similar triangles, the corresponding angles are congruent.
∠O = R
O = 70°
In ΔOMN,
∠O + ∠M + ∠N = 180 {Angle sum property of triangle}
70 + 50 + Ф = 180
120 + Ф = 180
Subtract 120 from both sides,
Ф = 180 - 120
Ф = 60°
NEED ANWSER ASAP PLS
a horizontal translation only
a horizontal translation and a 180° rotation
a horizontal translation and a glide reflection
a horizontal translation and a reflection across a vertical line
The transformations that map the strip pattern onto itself is a horizontal translation, a reflection across a vertical line, a reflection across a horizontal line, a glide reflection, and a 180°. Option A is the correct option.
Here, we have,
the conditions for mapping the strip transformation pattern onto itself:
The strip pattern can be mapped onto itself in two different ways.
The first way is to translate the strip pattern horizontally and then rotate it by 180° degrees.
The second way is to reflect the strip pattern across a vertical line.
Hence, the transformations that map the strip pattern onto itself can be achieved through a horizontal translation, a reflection across a vertical line, a reflection across a horizontal line, a glide reflection, and a 180°.
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complete question:
Which transformations map the strip pattern onto itself?
a horizontal translation, a reflection across a vertical line, a reflection across a horizontal line, a glide reflection, and a 180°
a horizontal translation only
a horizontal translation, a reflection across a horizontal line, and a glide reflection only
a horizontal translation and a 180° rotation only
THIS IS DUE IN 5 MINUTES I WILL GIVE BRAINLIST ASAP! The table below shows the cost of downloading songs from a website.
Number of songs 6 the total cost of it is 3.78 If c represents the total cost in dollars and cents for any number of songs downloaded, s, write a proportional equation for c in terms of s that matches the context.
Answer:
c = 0.63(s)
Step-by-step explanation:
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If l 1m, then <1 is a right angle
Right angle is an angle of 90 degrees while complementary angles add up to 90 degrees.
What are complementary angles and right angles?When the sum of two angles is 90°, then the angles are known as complementary angles.
A right angle is an angle of 90°.
Perpendicular lines are lines that intersect at a 90° angle. Perpendicular lines forms a right angle.
The complementary angle theorem states, "If two angles are complementary to the same angle, then they are congruent to each other".
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One aircraft has a capacity of 64 more seats than a second
aircraft. A third aircraft has 152 seats less than twice the seating
capacity of the second aircraft. If their total number of seats is
1900, find the number of seats for each aircraft.
Using the provided conditions and values, This is solved with the concept of word problem, The answer is first, second and third aircrafts have 576,512 and 864 seats.
What is word problem?A word problem in mathematics is a problem that is written in natural language (i.e., words) rather than in mathematical notation. It presents a real-world scenario that requires the use of mathematical concepts and skills to solve. Word problems often involve finding unknown quantities based on given information, and they can be challenging because they require students to understand the problem and translate it into mathematical equations or formulas. They are often used in primary and secondary education to help students apply their math skills to real-world situations and develop critical thinking skills.
What do you mean by mathematical expression?A mathematical expression is a combination of numbers, variables, and mathematical operations (such as addition, subtraction, multiplication, and division) that represents a mathematical statement or equation. Mathematical expressions can be evaluated to find a numerical value. They can also be simplified by applying the order of operations (PEMDAS) to combine like terms or to remove unnecessary parentheses. Additionally, mathematical expressions can also be used to represent the relationship between different variables.
Let x be the number of seats on the second aircraft. Then, the first aircraft has x+64 seats and the third aircraft has 2x-152 seats.
We know that the total number of seats for all three aircraft is 1900, so we can set up the following equation:
x + (x+64) + (2x-152) = 1900
Solving this equation gives us x = 512, which means the second aircraft has 512 seats. We can then use this information to find the number of seats for the other two aircraft:
First aircraft: 512 + 64 = 576 seats
Third aircraft: 2(512) - 152 = 864 seats.
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A large company releases summary statistics about the annual salaries for its employees. Based on the information, are there any outliers in the data? Explain your reasoning
Based on the information given; there are outliers in the data and this can be attributed to the relatively large standard deviation relative to the mean.
What are Outliers?Outliers as the name implies are data values which significantly deviate from the measures of central tendency such as mean and median.
On this note, the major outliers in the scenario are; the minimum and maximum whose values are $18,000 and $350,000 respectively.
It is noteworthy to also know that the relatively large standard deviation with respect to the mean is an indicator of the presence of outliers in the data.
Ultimately, there are outliers in the data given and this follows from the fact that the mean, Q1, Q3 all range between 50,000 - 58,000 while the outliers can register for them LAS
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What does 1/4+2/3 equal
Answer:
\(\frac{11}{12}\)
Step-by-step explanation:
\(Rule: \frac{x}{y} \pm \frac{a}{b} = \frac{x \pm y}{z}\\\frac{1}{4}+\frac{2}{3} = \frac{3}{12}+\frac{8}{12} (LCM)\\=\frac{3+8}{12}\\=\frac{11}{12}\\\)
What else would need to be congruent to show that ABC=AXYZ by SAS?
A
B
OA. ZB=LY
B. BC = YZ
OC. C= LZ
OD. AC = XZ
с
X
Z
Given:
AB XY
BC=YZ
What is needed to be congruent to show that ABC=AXYZ is AC ≅ XZ. option D
How to determine the statementGiven that in ΔABC and ΔXYZ, ∠X ≅ ∠A and ∠Z ≅ ∠C.
We are to select the correct condition that we will need to show that the triangles ABC and XYZ are congruent to each other by ASA rule..
ASA Congruence Theorem: Two triangles are said to be congruent if two angles and the side lying between them of one triangle are congruent to the corresponding two angles and the side between them of the second triangle.
In ΔABC, side between ∠A and ∠C is AC,
in ΔXYZ, side between ∠X and ∠Z is XZ.
Therefore, for the triangles to be congruent by ASA rule, we must have AC ≅ XZ.
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A side of the triangle below has been extended to form an exterior angle of 74°. Find the value of x.
Answer:
Step-by-step explanation:
The adjacent angle to the missing angle must sum to 180 degrees. So a=180-74=106 degrees. The sum of the three angles of the triangle must also sum to 180.
x+49+106=180
x+155=180
x=25
Answer:
106
Step-by-step explanation:
x+49=74
x=74-49=25
y=74=180
y=180-74=106
im sorry im late if u see this yw!
Make and equation using the numbers 1, 7, 2, and 2. You can merge the numbers like turning 1 and 7 to 17 in your equation. It has to have an equal sign. You cannot have exponents but you can make another be an exponent example: 6 squared or 1 to the 6th power. It has to be in the order of 1, 7, 2, and 2. For instance, yesterday’s was 1 = 6/2 - 2. By tomorrow plzz
Answer:
1^7 = 2/2
Step-by-step explanation:
Find the derivative of g(x)=√9-x
The derivative of g(x)=√9-x is mathematically given as
\(\frac{d}{d x}\left[x^n\right]$\)is \($n x^{n-1}$\)
This is further explained below.
What is the derivative of g(x)=√9-x?\(g(x)=\sqrt{9}-x\)
Rewrite 9 as 3^2.
\(\frac{d}{d x}\left[\sqrt{3^2}-x\right]\)
Pull terms out from under the radical, assuming positive real numbers. \(\frac{d}{d x}[3-x]\)
Differentiate.
By the Sum Rule, the derivative of 3-x with respect to x is
\($\frac{d}{d x}[3]+\frac{d}{d x}[-x]$.\)
\($\frac{d}{d x}[3]+\frac{d}{d x}[-x]$\)
Since 3 is constant with respect to x, the derivative of 3 with respect to x is 0 .
\($0+\frac{d}{d x}[-x]$\)
Evaluate
\(\frac{d}{d x}[-x]$.\)
Since -1 is constant with respect to x, the derivative of -x with respect to x is -\frac{d}{d x}[x].
\(0-\frac{d}{d x}[x]\)
Differentiate using the Power Rule which states that
t\(\frac{d}{d x}\left[x^n\right]$\)is \($n x^{n-1}$\)
In conclusion,
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help much appreciated ):
Answer
Step-by-step explanation:
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Guys i really need help, i will give brainliest to the right answers
2. Angela deposited $600 into an account paying a simple interest rate of 3.6% for 4.5 years. How
much interest did she earn? What was the balance of her account after the 4.5 years (assuming she made no deposits of withdrawals during the time)
Answer:
Step-by-step explanation:
to find out how much Angela she would have in the bank,
(600*3.6*1)100=21.60 she gains in one year
6 months 21.60/2=10.80
in 4.5 years
(21.60*4)+10.80=86.40+10.80=97.20 interest
the balance=600+97.20=697.20
A box of colored crayons contains 11 distinct colors. In how many ways can 2 colors be chosen, assuming that the order of the colors chosen doesn’t matter? (If necessary consult a list of formulas.)
Answer:
55
Step-by-step explanation:
The first crayon is chosen out of 11,so there are 11 choices
11
The second crayon is chosen out of 10 crayons left so there are 10 choices
10
11*10 = 110
But we do not care about the order, so we divide by 2 since there are 2 places
110/2 =55
Answer:
55
Step-by-step explanation:
Equation is a = n * (n-1)
11 * 10 = 110
Order doesn't matter, and two colors, so divide by 2.
110/2 = 55
if a coin is flipped 35 times and lands on heads 21 times what is the relative frequency of Landing on heads
Work Shown:
21/35 = (7*3)/(7*5) = 3/5
DEFG is a parallelogram. Segment DH = 2y + 6, segment HF = 4x + 1, segment HE = 3x + 2 and segment GH = 20. Find the value of GE and DF.
Answer:
\(DF = 38\)
\(GE = 40\)
Step-by-step explanation:
Given
\(DH = 2y + 6,\)
\(HF = 4x + 1,\)
\(HE = 3x + 2\)
\(GH = 20.\)
See attachment for parallelogram.
Required
Find GE and DF
From the attachment:
\(GH= HE\)
Substitute values for GH and HE
\(20 = 3x + 2\)
Subtract 2 from both sides
\(20-2 = 3x + 2-2\)
\(20-2 = 3x\)
\(18= 3x\)
\(3x = 18\)
Divide both sides by 3
\(x = \frac{18}{3}\)
\(x=6\)
\(GE = GH + HE\)
\(GH= HE\)
So:
\(GE = GH + GH\)
\(GE = 20 + 20\)
\(GE = 40\)
To find DF, we find y first:
\(DH = HF\)
\(2y + 6 = 4x + 1\)
Subtract 6 from both sides
\(2y +6- 6 = 4x + 1-6\)
\(2y = 4x + 1-6\)
Substitute 6 for x
\(2y = 4*6 + 1-6\)
\(2y = 19\)
Divide both sides by 2
\(y = \frac{19}{2}\)
\(y = 9.5\)
DF is then calculated as"
\(DF = DH + HF\)
\(DF = 2y+6 + 4x+1\)
Substitute values for x and y
\(DF = 2*9.5+6 + 4*3+1\)
\(DF = 38\)
Multiply the fractions and reduce to lowest terms. Use cancellation whenever possible. 5/6 x 1/7 x 3/5
Answer:
\(\frac{1}{14}\)
Step-by-step explanation:
\(\frac{5}{6}*\frac{1}{7}*\frac{3}{5}=\frac{5*3}{2*3*7*5} =\frac{1}{14}\)
in a popular shopping Centre waiting time for an ABC bank ATM machine is found to be uniformly distributed between 1 and 5 minutes what is the probability of waiting between 2 and 4 minutes to use the ATM
so here we get two outcomes one is 2 and other is 4.
so there is total 2 outcomes.
total no. of possibility is 5
so the probability of waiting between 2 and 4 minutes to use the ATM is 2/5.
can someone please help me with this problem
Answer:
Its between option 3 and 4
what is 8653 × 8975??????????????????????????????
Answer:
8653 × 8975= 77660675.
So the answer is 77660675
Hope I helped you
Answer:
the answer is 77660675
Step-by-step explanation:
Find the tan of angle T....
The exterior angles of a pentagon have measures of 65 degree 86degree 104 degree 2x and 3x find the value of x
Answer:
21
Step-by-step explanation:
65+86+104+2x+3x = 360
5x = 360-65-86-104
= 105
x =21
ladd is rearranging his living room furniture. he wants his couch to sit along the 20-ft wall, labeled ac
on the diagram. he would like the left side of his couch to sit at a point b so that the ratio of ab to bc is 1: 4.
Answer:
AB = 4 ft
BC = 16 ft
Step-by-step explanation:
To find the length of AB and BC you need to relate them using equations.
AB + BC = 20 ft (from the diagram)
4AB = BC (from your ratio)
Substituting BC = 4AB into AB + BC = 20:
AB + 4AB = 20 ft
5AB = 20 ft
AB = 4 ft
Plugging AB = 4 ft into AB + BC = 20 ft:
4 ft + BC = 20 ft
BC = 20 ft - 4 ft
BC = 16 ft
To check this, test both values against the ratio:
AB:BC = 1:4
4:16 = 1:4
1:4 = 1:4
So AB = 4 ft and BC = 16 ft
The value of distance , AB = 4 ft and BC = 16 ft.
It is given in the question, that Ladd is rearranging his living room furniture. He wants his couch to sit along the 20-ft wall.
How to arrange the furniture that the ratio of AB to BC is 1: 4 ?
In a business, 60 of the employees are men and 30 of the employees are women. What is ratio of women to men?
The ratio of women to men will be ; 30 : 60 = 1 : 2.
To find the length of AB and BC we need to relate them using the equations.
AB + BC = 20 ft (from the diagram) ----------- (Equation 1)
∵ AB : BC = 1 : 4
⇒ 4AB = BC
Substituting, BC = 4AB into equation 1.
AB + 4AB = 20 ft
5AB = 20 ft
AB = 4 ft
Plugging AB = 4 ft into equation 1.
4 + BC = 20
BC = 20 ft - 4 ft
BC = 16 ft
Thus, the value of sides AB = 4 ft and BC = 16 ft , and here AB and BC are in ratio 1:4.
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(CLASSKICK) HELP ASAP!!!
Answer:
94.3
Step-by-step explanation:
You want to know how to fill in the proportion associated with the question, "What is 115% of 82?"
ProportionThe diagram is intended to help you match parts of the question to parts of the proportion. The attachment shows the intended relation.
The solution is found by multiplying both sides by 82:
(x/82)·82 = (115/100)·82
x = 94.3
EquationThe question can also be written as a statement:
"what" is 115% of 82
When written as an equation, "is" means "equals", and "of" means "times":
what = 115% × 82
Of course, you can use any variable name of your choosing in place of "what". In your diagram, that is "x". And, you know how to write a percentage as a fraction or decimal, so this becomes ...
x = 115/100 × 82 = 1.15 × 82
All that remains is to evaluate this expression.
x = 1.15 × 82 = 94.3
So, the answer to the question is ...
94.3 is 115% of 82.
The radius of a circle is 7ft. Find it's circumference in terms of π.
C= ft
Step-by-step explanation:
The circumference of a circle can be calculated using the formula: C = 2πr
where C is the circumference, π is the mathematical constant pi (approximately equal to 3.14159), and r is the radius of the circle.
Given that the radius of the circle is 7ft, we can substitute this value into the formula and get: C = 2π(7ft) C = 14πft
So the circumference of the circle in terms of π is 14πft.