Answer:
19 terms
Step-by-step explanation:
the sum to n terms of an AP is
[tex]S_{n}[/tex] = [tex]\frac{n}{2}[/tex] [ 2a₁ + (n - 1)d ]
where a₁ is the first term and d the common difference
here a₁ = 18 and d = a₂ - a₁ = 16 - 18 = - 2, then solving for n
[tex]\frac{n}{2}[/tex] [ (2 × 18) - 2(n - 1) ] = 0 ( multiply both sides by 2 to clear the fraction )
n(36 - 2n + 2) = 0
n(38 - 2n) = 0 ← distribute parenthesis on left side by n
38n - 2n² = 0 ← factor out 2n from each term on the left
2n(19 - n) = 0
equate each factor to zero and solve for n
2n = 0 ⇒ n = 0
19 - n = 0 ⇒ n = 19
n > 0 , then number of terms is 19
please help, this is due tomorrow
True or false. justify your answer.
if horse A is twice as far as horse B from the center of a merry-go-round, then horse A travels twice as fast as horse B
Answer:
TrueStep-by-step explanation:
Horse A travels twice the distance horse B travels.
It is because the distance, the circumference of circle, is the function of the radius. The circumference is directly proportional with the radius.
Since r₁ = 2r₂, the distance is:
C₁ = 2πr₁ = 4πr₂C₂ = 2πr₂The time of travel is same so the difference is reflected in the speed.
The horse A has twice the speed of horse B.
Help ASAP I’ll give brainliest don’t answer of u do not know thank u Sm:)
combine like terms 4(p+3)-8
man i don't know
Step-by-step explanation:
i hope it's like 20 ? i guess it's 20
Answer:
4(p+1)
Step-by-step explanation:
For the same data, two differ models are graphed. Which model more closely matches the data?
Answer: A.
I would say that it would have to be A. because it seems like B has all of the dots a little higher than the line while on A they seem closer packed into the line.
Step-by-step explanation:
Please help people!!! :D
Answer:
The answer is C
Step-by-step explanation:
Since the line above the letters is an arrow that means the two points have to create a line like that. Therefore, the answer is DB.
Answer:
DB
Step-by-step explanation:
Why others rejected?
E C
E and C are in cent res or at midpoint near area s .The correct name should be A FE B is rejected as points are not on one line
Write −x^2+2xy−y^2 as the opposite of the square of a binomial.
PLEASE HELP ME PLEASE I WILL GIVE BRAINLYEST
Answer:
[tex]-(x-y)^2[/tex]
Step-by-step explanation:
Original expression:
[tex]-x^2+2xy-y^2[/tex]
Factor out -1:
[tex]\implies -(x^2-2xy+y^2)[/tex]
Factor [tex]x^2-2xy+y^2[/tex]:
[tex]\implies -(x-y)(x-y)[/tex]
Apply exponent rule [tex]aa=a^2[/tex]:
[tex]\implies -(x-y)^2[/tex]
Students are making the scenery for a school play. They use a large piece of plywood
to represent the front of a house, with a semicircular window cut out. Now they need
to paint the plywood. Find the area that will be painted.
1. List the shapes that make up the front of the house. (2 points)
2. Describe your strategy for finding the area that needs to be painted. (2 points)
3. Find the area for f each shape. Use 3.14 for n (4 points)
4. What is the total area to be painted? (2 points)
Please help me find the answers and shiw your work step by srep for eac question to get to the answer please and ill guve brainlist and some points please answer quickly!!!
Answer:
57.72 in^2
Step-by-step explanation:
Question 1. Shapes are triangle, semi-circle, and rectangle.
Question 2.Find area of rectangle first. Then area of triangle and circle. Subtract area of triangle and circle. Then add the difference with the rectangles area.
Question 3.
Rectangle's area:48 in^2
Triangles area:8*4/2= 16 in^2
Circle Area: pi*r^2/2(since its a semi-circle)
3.14*2^2=3.14*4=12.56/2=6.28 in^2
Question 4.
16-6.28=9.72
9.72+48=57.72 in^2
The sum of three consecutive even numbers is 144. Find the highest even number.( Take the lowest even number as 4x-2)
[tex]\bold{\huge{\underline{ Solution }}}[/tex]
Given :-The sum of 3 consecutive even number is 144The lowest even number as 4x - 2 To Find :-We have to find the highest consecutive number. Let's Begin :-Here ,we have
The sum of three consecutive even numbers is 144[ Consecutive even numbers are the sequence of numbers that differ by 2 or that are divisible by 2 ]The lowest even number is 4x - 2Let the three consecutive number be
(4x - 2) , 4x , ( 4x + 2)
According to the question,
[tex]\sf{ (4x - 2) + 4x + ( 4x + 2) = 144}[/tex]
[tex]\sf{ 4x - 2 + 4x + 4x + 2 = 144}[/tex]
[tex]\sf{ 8x - 2 + 4x + 2 = 144}[/tex]
[tex]\sf{ 12x = 144}[/tex]
[tex]\sf{ x = }{\sf{\dfrac{ 144}{12}}}[/tex]
[tex]\sf{ x = }{\sf{\cancel{\dfrac{ 144}{12}}}}[/tex]
[tex]\sf{ x = 12 }[/tex]
Thus, The value of x is 12
Therefore,
The three consecutive even numbers are
[tex]\sf{ 4x - 2 = 48 - 2 = 46 }[/tex][tex]\sf{ 4x = 48 }[/tex][tex]\sf{ 4x + 2 = 48 + 2 = 50 }[/tex]Hence, The highest consecutive even number is 50 .
Resolva a expressão: 6÷3+2•7
Step-by-step explanation:
What is the molar mass of an element?
the total number of particles in one gram of the element
the mass of 6.02 x 1023 representative particles of the element
the number of amus (atomic mass units) in 6.02 x 1023 moles of the element
1.0 gram divided by the atomic weight of the element
Explain how to describe the data on a histogram.
Answer:
visual interpretation. of numerical data
Step-by-step explanation:
A histogram is a graphical representation of discrete or continuous data. To put it another way, it gives a visual representation of numerical data by displaying the number of data points that fall within a given range of values.
Complete the ratio table
Answer:
110
Step-by-step explanation:
101-86=15
95+15=110
110-15=95
Answer:
110
Step-by-step explanation:
In this problem, you are adding 15 to each Input to get the Output. That is why I added 15 to 95 in order to get 110.
A point at (54, -27) is rotated 720° clockwise about the
origin. What are the new coordinates for the point?
a. (54,-27)
b. (-27, -54)
c. (-54, 27)
d. (27,54)
Factor completely 6x2 − 11x − 10. (6x 2)(x − 5) (6x − 2)(x 5) (3x 2)(2x − 5) (3x − 2)(2x 5).
Factors of the given expression are [tex](2x-5) ,(3x+2)[/tex]
The given expression is:
[tex]6x^2-11x-10[/tex]
What is a factor?A factor is a number that divides another number leaving no remainder.
we can split the middle term as,
[tex]6x^2-15x +4x-10\\[/tex]
[tex]3x(2x-5)+2(2x-5)\\\\(2x-5) (3x+2)[/tex]
Therefore factors of the given expression are [tex](2x-5) ,(3x+2)[/tex]
To get more about factors visit:
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Jon Deposits $7,050 into an account paying 5% annual interest compounded quarterly and Sara deposits $4,867 into an account paying 10% annual interest compounded daily who will have more money after 1 year? How much more will that person have? Show and explain all work.
The person that would have more money at the end of the year is Sara.
Who would have more money?The formula that would be used to determine the future value of an amount is:
FV = P (1 + r/m)^nm
FV = Future value P = Present value R = interest rate m = number of compoundingN = number of yearsJon = $7050 x (1 + 0.05/4)^4 = $7409.16
Sara = $4867 x (1 + 0.1 / 365)^365 = $5378.79
To learn more about future value, please check: https://brainly.com/question/18760477
Determine if the sequence below is arithmetic or geometric and determine the
common difference / ratio in simplest form.
2, 5, 8, ...
A circle is represented by the equation x2 + 8x + y2 – 12y = –29. Describe the algebraic technique(s) needed to rewrite the equation in standard form. Identify the center and radius of the circle. Show your work
The equation of the circle can be written in standard form and in a general form
The center of the circle is (-4,6) and the radius is [tex]\sqrt{23[/tex]
How to identify the radius and the center of the circleThe equation of the circle is given as:
[tex]x^2 + 8x + y^2 - 12y = -29[/tex]
Rewrite as:
[tex]x^2 + 8x + k - k + y^2 - 12y + k - k= -29[/tex]
Express k as the square of the half of the coefficients of x and y.
So, we have:
[tex]x^2 + 8x + (4)^2 - (4)^2 + y^2 - 12y + (6)^2 - (6)^2= -29[/tex]
Evaluate the exponents
[tex]x^2 + 8x + 16 - 16 + y^2 - 12y + 36 - 36 = -29[/tex]
Collect like terms
[tex]x^2 + 8x + 16 + y^2 - 12y + 36 = -29 + 16 + 36[/tex]
Express as perfect squares
[tex](x + 4)^2 + (y - 6)^2 = -29 + 16 + 36[/tex]
[tex](x + 4)^2 + (y - 6)^2 = 23[/tex]
The standard equation of a circle is:
[tex](x - a)^2 + (y - b)^2 + r^2[/tex]
Where:
Center = (a,b)
Radius = r
So, we have:
Center = (-4,6)
Radius = [tex]\sqrt{23[/tex]
Hence, the center of the circle is (-4,6) and the radius is [tex]\sqrt{23[/tex]
Read more about circle equation at:
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Somebody please help me with this please
Answer:
x = 52.2
Step-by-step explanation:
we have adjacent (56) and opposite (x) so we use tan (Toa = opposite/adjacent).
Set up like so:
tan 43 = x/56
x = 52.2208
x = 52.2
what is the difference between 35.032 and 20.1
Answer:
35 is different from 20
Step-by-step explanation:
too easy for explanation
Answer:
The difference is 14.932
Step-by-step explanation:
In other words, it's asking you to subtract 20.1 from 35.032.
Hope that helps!
Barry and his sister went to lunch at Applebee's. The total bill was $21.60 and they left a $3.40 tip. Approximately what percent of the total bill did they leave as a tip?
Answer:
25.20
Step-by-step explanation:
Answer:
The answer is 0.7344
I'm not sure tho
what is the measure of
Answer: B
Step-by-step explanation:
how many holes does a t shirt have?
Answer:
This shirt has 8 holes :)
Please mark as brainliest
An antique vase is worth £300 when I buy it, its value increases by 2% each year. How much will it be worth in 8 years time?
Which graph represents the solution set of the compound inequality?
−5
please help!!!
Answer:
the first
Step-by-step explanation:
it just is. Be smarter.
Determine the values of the requested variables
Answer:
y = 24
angle V = 67
as a 4 sided shape, the angles all have to add up to 360 degrees.
we already have the answers for R, 120, and B, 53. We have 187 degrees left to work with.
Based of the information the tics on the sides of the figure gives us, we know that angle P and R are the same! First (just for fun, this isn't needed) we'll find X.
(x+95) = 120
-95 -95
x = 25
We know 3/4 angles now, so by subtracting their sum from 360, we'll find angle V!
360 - 53 -120 - 120 = 67
Angle V is 67
Now to find y!
(2y+19)=67
-19 -19
2y = 48
/2 /2
y = 24
The outside service area of a cereal box and printed with texts and pictures what is the surface area in square inches of a box that is 2 inches wide 7 inches long and 10 inches tall
The prices of consumer goods do not always exactly follow the CPI. The following chart shows several consumer items, along with their respective prices in 1983 and today. Item Price in 1983 ($) Current Price ($) Shower curtain 8. 85 15. 66 Floor rug 71. 25 119. 75 T-shirt 13. 95 23. 99 Oscillating fan 22. 75 37. 50 Using the prices shown on this chart, which of the following is a reasonable estimate of the current CPI? a. 164 b. 170 c. 185 d. 199.
The reasonable estimate of the current customer price index is 195. The option B is the correct option.
Customer price indexCustomer price index is the price index which measures the weight average of price of basket of customers goods or services.
It can be given as,
[tex]\rm CPI_t=\dfrac{C_t}{C_0}\times 100[/tex]
Here [tex]\rm C_t[/tex] is the cost of market basket in current period and [tex]\rm C_0[/tex] is the cost of market basket in the base period.
Cost of market basket in current period is
[tex]\rm C_t=15.66+119.75+23.99+37.50\\\\C_t=196.9[/tex]
Cost of market basket in 1983 is,
[tex]\rm C_0=8.85+71.25+13.95+22.7\\\\C_0=116.8[/tex]
Substitute all the values in the formula
[tex]\rm CPI_t=\dfrac{C_t}{C_0}\times 100\\\\\rm CPI_t=\dfrac{196.9}{116.8}\times 100\\\\\rm CPI_t=1.685\times 100 \\\\ CPI_t=168.5\\\\\rm CPI_t= 170 \ \rm approx[/tex]
Thus the value of current CPI is 168.5 which is near about the 170.
Hence, the reasonable estimate of the current customer price index is 195. The option B is the correct option.
Learn more about the customer price index here;
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please help me with that question
Answer:
Step-by-step explanation:
at the end of; Karabo John
1st hour 80km 0km(bcause he hasn't started)
2nd hour 160 km 100km
3rd hour 240 km 200km
4th hour 300 km 300km
now I'm not sure whether we should consider the time period after the starting time of karabo, or that of John (they have a gap of one hour u know..)
so, from the starting time of karabo, it takes 4 hours, and from the starting time of John it's 3hours. (Because John started 1 hour later)
5. Find the area.
What do I do
Answer:
508.68cm^2
Step-by-step explanation:
this is a semicircle, so first get the whole circle by s=
[tex]\pi \: r {}^{2} [/tex]
so it said you should plug in 3.14 for pi,
3.14×18^2=1017.36
and semicircle should be the half of it, which is 508.68 cm^2
Answer:
127.17 cm²
Step-by-step explanation:
The area of a circle of radius r is given the the formula below.
A = πr²
Since you have a semicircle, divide the area of a circle by 2.
A[semicircle] = πr²/2
A[semicircle] = 3.14 × (9 cm)² / 2 = 127.17 cm²
Answer: 127.17 cm²
You are correct. Remember to include the units. In this case, it is cm².
Eduardo is making a friendship bracelet with 6 different colors of thread. He uses 22 inches of each color. How many feet of thread does he use in all?
Please help me Asap thanks if you do!
Answer:
(A) 9
Step-by-step explanation:
Substitute 2 for X
[tex]7-(-2)=9[/tex]