Answers
Explanation
I will do this for you in two forms: 1) adding each term, and 2) using the general formula for the sum of geometric series.
1) Adding the terms:
4
∑ 3 (3/4)^i = 3 (3/4)^0 + 3 (3/4)^1 + 3 (3/4)^2 + 3 (3/4)^3 + 3 (3/4)^4
i=0
= 3 + 9/4 + 27/16 + 81/64 + 243/256 = [256*3 + 27*16 + 64*9 + 4*81 + 243] / 256 =
= 2343 / 256
2) Using the formula:
n-1
∑ A (r^i) = A [1 - r^(n) ] / [ 1 - r]
i=0
Here n - 1 = 4 => n = 5
r = 3/4
A = 3
Therefore the sum is 3 [ 1 - (3/4)^5 ] / [ 1 - (3/4) ] =
= 3 [ 1 - (3^5) / (4^5) ] / [ 1/4 ] = 3 { [ (4^5) - (3^5) ] / (4^5) } / {1/4} =
= (3 * 781) / (4^5) / (1/4) = 3 * 781 / (4^4) = 2343 / 256
So, no doubt, the answer is 2343 / 256
Related Questions
What statement is true about the polynomial
Answers
WILL MARK AS BRAINLIEST!!
What is the value of x?
Need help fast!
Answers
.. x = 3*8 in = 24 in
A solid is composed of squares and equilateral triangles. Its net is shown below:
The area of each triangle is 1.5 square units. The surface area of the triangular prism is _____ square units. (Input whole number only.)
Answers
2*2=4
4*3= 12
There are 2 triangles so
2*2=4
4/2=2
2*2=4
4+12= 16
Answer:
So I am going one is kind of the same but it says six units and then it says the area of each triangle is 16 square units and I was trying to follow the step-by-step explanation from somebody else and I got 52 but I don’t know if I did that right
Step-by-step explanation:
Look at the table below showing an example of a checkbook ledger. Malcolm has several receipts from recent transactions that he entered in his records. The receipts include an ATM receipt for an $80.00 deposit, a grocery store receipt for $25.50, and a paycheck deposit slip for $650.00. When he finishes entering his transactions, Malcolm realizes that his balance is incorrect. Assuming that Malcolm had no beginning balance, what should his correct balance be? $624.50 $704.50 $755.50 $784.50
Answers
$0.00 + $80.00 = $80.00
After the grocery store:
$80.00 - $25.50 = $54.50
After the paycheck deposit:
$54.50 + $650.00 = $704.50 total balance.
Answer:
I just took this quiz and the answer is B:$704.50
Step-by-step explanation:
Edg 2022
Do 1.5 cm, 3 cm, 1.5 cm make a triangle and what kind
Answers
The lengths 1.5 cm, 3 cm, and 1.5 cm cannot form a triangle because the sum of the lengths of the two shorter sides is equal to the length of the longest side, which does not satisfy the Triangle Inequality Theorem.
The question asks if lengths 1.5 cm, 3 cm, and 1.5 cm can form a triangle, and if so, what kind of triangle it would be. To determine whether these lengths can form a triangle, we use the Triangle Inequality Theorem, which states that the sum of the lengths of any two sides of a triangle must be greater than the length of the third side.
For these lengths:
1.5 cm + 1.5 cm = 3 cm1.5 cm + 3 cm > 1.5 cm1.5 cm + 3 cm > 1.5 cmWe see that when we add the lengths of the two shorter sides (1.5 cm + 1.5 cm), it equals the length of the longest side (3 cm). According to the Triangle Inequality Theorem, the lengths do not meet the condition for forming a triangle because the sum must be greater than, not equal to, the length of the third side. Therefore, these lengths cannot form a triangle.
How to multiply fractions by a number with an exponent?
Answers
Multiplying negative exponents
Multiplying variables with exponents
Multiplying square roots with exponents
Solve the system shown.
Answers
x+12y=68 (i)
x=8y-12 (ii)
2. Let's substitute the equation (ii) into the equation (i):
x+12y=68
(8y-12)+12y=68
3. Then, you have:
8y-12+12y=68
4. When you clear "y", you have:
20y-12=68
20y=68+12
20y=80
y=80/20
y=4
5. You already have the value of "y". Now, you must substitute this value into the equation (ii):
x=8y-12
x=8(4)-12
x=32-12
x=20
6. Therefore, the result is:
x=20
y=4
Why is it most logical to let x represent Dianna’s current age?
Answers
in 3 years, she's going to be " x + 3 " years old.
33 years ago, she was " x - 33 " old.
how much is 4 times that anyway? well 4(x-33), that's 4 times as 33 years ago her age.
now, we know in 3 years, x+3, she'll be "4 times as old as she was 33 years ago", 4(x-33), therefore, those amounts are equal then,
[tex]\bf \stackrel{\textit{3 years from now}}{x+3}~~=~~\stackrel{\textit{4 times as old as she was 33 years ago}}{4(x-33)} \\\\\\ x+3=4x-132\implies 135=3x\implies \cfrac{135}{3}=x\implies 45=x[/tex]
why is it most logical to use "x" for her age today?
well, because 3 years from now is just x + 3
and
33 years ago is x - 33, 4 times that is 4( x - 33 ).
works very well as a point of reference.
Diannas current age is what your being asked to find
Diannas age is the unknown in the problem
The given relatioships can be written in terms of diannas current age
Elijah played in a golf tournament. For the first three days he averaged a score of -2. On the fourth day he shot a +2. What was his average for all four days?
Answers
-2 + -2 + -2 + 2
-2 -2 -2 + 2
-6 + 2
-4
-4/ 4 = -1
His average is -1
the fourth is 2
add together is -4
divide by 4(number of days)
-1
his average score is -1
each blade on a windmill is in the shape of a triangle with a base of 7 feet and a height of 4 ft if there are four blades on the windmill what is the total area of the blades
Answers
The total area of the blades is the area of a triangle multiplied by 4.
We have then:
[tex] A = (4) * (1/2) * (b) * (h)
[/tex]
Where,
b: base of the blades
h: height of the blades
Substituting values we have:
[tex] A = (4) * (1/2) * (7) * (4)
[/tex]
Doing the calculation we have that the area of the blades is given by:
[tex] A = 56 feet ^ 2
[/tex]
Answer:
The total area of the blades is:
[tex] A = 56 feet ^ 2 [/tex]
Each blade on a windmill is in the shape of a triangle with a base of 7 feet and a height of 4 ft if there are four blades on the windmill what is the total area of the blades
Total area of blades= Sum of areas of all blades
=Sum of areas of four blades
As, all blades have same dimension
SO, Total area of blades=4*Area of one blade
As, shape of blade is triangle, Area of triangle=[tex] \frac{1}{2} [/tex]*base*height
Total Area of blades =4* [tex] \frac{1}{2} [/tex] * base * height
Total Area of blades =4* [tex] \frac{1}{2} [/tex] * 7 * 4
Total Area of blades =4* [tex] \frac{1}{2} [/tex] * 28
Total Area of blades =4* 14
Total Area of blades =56 square feet
please helm me
A circular piece of metal has a radius of 3.5 meters.
The metal sells for $3.25 per square meter.
What is the total cost of the circular piece of metal?
A.
$11.38
B.
$38.47
C.
$71.44
D.
$125.01,
Answers
Answer:
The answer would be $125.01
Step-by-step explanation:
I took the test.
Answers...........................?
Answers
Your calculator can help with this if you don't happen to know already that 1/5 of 5/4 = 1/4.
solve for x in the equation x^2+10x+12=36
Answers
x^2 +10x + 12 = 36
x^2 + 10x + 12 - 36 = 0
x^2 +12x - 2x - 24 = 0
x(x + 12) - 2(x +12) = 0
(x + 12) x (x - 2) = 0
x + 12 = 0
x - 2 = 0
x = -12
x = 2
your answer for the first x is x = -12, and your answer for the second x will be
x = 2
let me know if you have any further questions
:)
Answer: The required value of x is 2 or -12.
Step-by-step explanation: We are given to solve for x in the following equation :
[tex]x^2+10x+12=36~~~~~~~~~~~~~~~~~~~~~~~(i)[/tex]
We will be solving the given equation by the method of factorization.
From equation (i), we have
[tex]x^2+10x+12=36\\\\\Rightarrow x^2+10x+12-36=0\\\\\Rightarrow x^2+10x-24=0\\\\\Rightarrow x^2+12x-2x-24=0\\\\\Rightarrow x(x+12)-2(x+12)=0\\\\\Rightarrow (x-2)(x+12)=0\\\\\Rightarrow x-2=0,~~~~~~x+12=0\\\\\Rightarrow x=2,~-12.[/tex]
Thus, the required value of x is 2 or -12.
Students on the CARE Team are selling puppies, yes, puppies! They earn $0.40 on each puppy they sell. Their goal is to earn more than $327. Choose the inequality to find the fewest number of puppies they can sell and still reach their goal. Also indicate what that number would be.
Answers
x >= 327/0.4 which is not going to be an even number.
x >= 817. 5 puppies. So they need to sell 0.5 more puppies. Better round this quickly before someone decides to do something stupid to get the extra 1/2 puppy. For us it's simple. Just add a 1/2 puppy more.
x >= 818 puppies <<<<==== answer.
Is 67.714813 rational or irrational?
Answers
Answer is:
Irrational. Why?
Rational numbers are like 2:3 (Example) that is a Decimal.
Hope this helps!! Can you please mark Brainliest? Good Luck on your School assignment, and God Bless!
Force exerted by the ball on the kickers foot.
Answers
F = (42*0.65)/(0.018) = 1516.7 N
To the correct number of sig figs it is 1500 N
What is 5/15 written as a decimal???
What is 4/15 written as a decimal???
What is 3/15 written as a decimal???
Answers
There are a couple ways we can use to convert a fraction to a decimal, but let's stick with the easiest one.
To convert a fraction to a decimal, simply divide the numerator (top part of the fraction) by the denominator (bottom part).
The first fraction is 5/15. Its numerator is 5, and its denominator is 15. Divide the top by the bottom.
5 ÷ 15 = 0.3333333333
Because this decimal keeps repeating, it is called a "repeating fraction."
We don't want to write all those 3's over and over again, so to indicate that it is a repeating decimal, simply put a bar above the 3.
Convert the other two fractions using the same method:
4 ÷ 15 = 0.266666667
Remember to put a bar above the repeating number.
3 ÷ 15 = 0.2
Since this decimal does not repeat, it is called a "terminating decimal". You do not have to put a bar above the 2.
Don't forget this method!
Quadrilateral ABCD is inscribed in this circle. what is the measure of angle C?
Answers
angle c = 180 - 2x - 38
angle c = 142 - 2x
Which concept can be used to prove that the diagonals of a parallelogram bisect each other?
a)congruent triangles
b)similar triangles
c)congruent rectangles
d)similar rectangles
Answer: Jiren is too strong. (congruent triangles)
Answers
Hope I helped you :D
Answer:
Option: A is correct (congruent triangles)
Step-by-step explanation:
To prove that he diagonals of a parallelogram bisect each other we have to go through the following steps:
Angle DBA is congruent to angle BDC. Angle CMD is congruent to angle AMB. Triangle CMD is congruent to triangle AMB. Segment AM is congruent to segment MC. M is the midpoint of segment AC. Segment BD bisects segment AC. Segment BM is congruent to segment MD. M is the midpoint of segment BD. Segment AC bisects segment BD.Hence we have to use the concept of congruent triangles in order to prove that the diagonals of a parallelogram bisect each other.
Hence, option A is correct
What is the solution to the proportion? Start Fraction 3 y minus 8 over 12 End fraction equals start fraction y over 5 End Fraction?
Answers
(3y-8)/12=(y/5)---------> 5*(3y-8)=12*(y)
15y-40=12y-------------> 15y-12y=40
3y=40--------------> y=40/3
y=(40/3)----------> 13.33
the answer is y=40/3 (13.33)
Answer:
1.78
Step-by-step explanation:
To solve for x we need to cross multiply it
We have = sign in between the fractions so we cross multiply it
9*x = 2* 8
9x = 16
Now we divide by 9 on both sides
so x= 1.7777777778
When we round to two decimal places then
x= 1.78
insert <,>,or = or make the sentence true.sqrt(3)__sqrt(7)
Answers
___________________________________________
" sqrt(3) < sqrt(7) " .
___________________________________________
Need quick help please?! Using the Angle Bisector Theorem solve for x.
Show all work.
Answers
15/3 = (4x+1)/5
5 = (4x+1)/5
4x+1 = 25
4x = 24
x = 6
Answer:
[tex]x=6[/tex]
Step-by-step explanation:
We have been given a triangle and we are asked to solve for x using angle bisector theorem.
Angle bisector theorem states that if a ray bisects an angle of a triangle, then it divides the opposite side of triangle into segments that are proportional to the other two sides.
Using angle bisector theorem we can set an equation as:
[tex]\frac{4x+1}{5}=\frac{15}{3}[/tex]
Let us solve for x by multiplying both sides of our equation by 5.
[tex]\frac{4x+1}{5}*5=\frac{15}{3}*5[/tex]
[tex]4x+1=5*5[/tex]
[tex]4x+1=25[/tex]
Let us subtract 1 form both sides of our equation.
[tex]4x+1-1=25-1[/tex]
[tex]4x=24[/tex]
Upon dividing both sides of our equation by 4 we will get,
[tex]\frac{4x}{4}=\frac{24}{4}[/tex]
[tex]x=6[/tex]
Therefore, the value of x is 6 units.
help me please asap ill mark brainliest nd plz be correct
Answers
7 = 2x-11
18 = 2x
x = 18/2 = 9
AI = 3(9) +7 = 27 +7 = 34
5x - 11 = 3x + 7
2x = 18
x = 9
so
AI= 3(9) + 7 = 27 + 7 = 34 = BI = CI
answer
34
I WILL GIVE BRAINLIEST, PLS HELP-A farmer has 300 ft of fencing with which to enclose a rectangular pen next to a barn. The barn itself will be used as one of the sides of the enclosed area.
What is the maximum area that can be enclosed by the fencing?
Enter your answer in the box.
ft²
Answers
Given that (7,-4) is on the graph of f(x), find the corresponding point for the function f(x+4)
Answers
Final answer:
To find the corresponding point of a function after transformation, substitute the given point into the transformed function.
Explanation:
Given: (7, -4) is on the graph of f(x).
To find: The corresponding point for the function f(x+4).
Solution:
Substitute x+4 into the function f(x) to get the new function f(x+4).
Substitute x=3 into f(x+4) to find the corresponding point.
Therefore, the corresponding point for f(x+4) is (3, -4).
one face of a cube an area of 49 square centimeters. what is the volume of the cube
Answers
Roderick wants to draw a circle for which the numerical value of the circumference is greater than the value of the area. Which lengths could he use for the radius? Check all that apply.
Answers
Answer:
The length of the radius must be less than [tex]2[/tex]
[tex]\frac{1}{2},1,1.5[/tex]
Step-by-step explanation:
we know that
The circumference of a circle is equal to
[tex]C=2\pi r[/tex]
The area of a circle is equal to
[tex]A=\pi r^{2}[/tex]
where r is the radius of the circle
In this problem we have that
[tex]C > A[/tex]
Substitute
[tex]2\pi r > \pi r^{2}[/tex]
Simplify
[tex]2r > r^{2}[/tex]
[tex]2> r[/tex] ------> rewrite
[tex] r< 2\ units [/tex]
The length of the radius must be less than [tex]2[/tex]
the answer is
[tex]\frac{1}{2},1,1.5[/tex]
Roderick select the length of radius, for keeping the value of circumference of the circle greater than the value of its area, should be 1/2,1 and 1.5. Thus the option A, B and C is the correct option.
What is circumference and area of the circle?Circumference of the circle is the length of its boundary. It can given as,
[tex]P=2\pi r[/tex]
The area of the circle is the space occupied by it. It can be given as,
[tex]A=\pi r^2[/tex]
Given information-
Roderick wants to draw a circle.
The circumference of the circle must be greater than the area of the circle.
The circumference of the circle having radius equal to [tex]r[/tex] units can be given as,
[tex]P=2\pi r[/tex]
The area of the circle having radius equal to [tex]r[/tex] units can be given as,
[tex]A=\pi r^2[/tex]
Now as Roderick wants to draw a circle in which, the circumference of the circle must be greater than the area of the circle. Thus,
[tex]P>A[/tex]
Put the values as,
[tex]2\pi r>\pi r^2\\2r>r^2\\2>r[/tex]
Thus the value of the radius of Roderick circle must be less than the number 2.
Number 1/2 , 1, and 1.5 is less than the number two.
Thus, Roderick select the length of radius, for keeping the value of circumference of the circle greater than the value of its area, should be 1/2,1 and 1.5. Thus the option A, B and C is the correct option.
Learn more about the circumference and area of the circle here;
https://brainly.com/question/402655
(50 points)
What is the product of -2x^3+x-5 and x^3-3x-4?
Is the product of -2x^3+x-5 and x^3-3x-4 equal to the product of x^3-3x-4 and -2x^3+x-5 explain your answer.
Answers
Answer:Yes, the products are equal because of commutativity. To find the product, use distributive law. Just simplify the below:
-2x^3(x^3-3x-4) + x(x^3-3x-4) - 5(x^3-3x-4)
Step-by-step explanation:
A $6,000.00 principal earns 8% annual interest, compounded semiannually (twice per year). After 35 years, what is the balance in the account?
A. $22,800.00
B. $39,600.00
C. $88,712.07
D. $93,429.71
Answers
Answer:
After 35 years balance in the account = $93429.71
Explanation:
We will applying the compound interest formula.
A = [tex] P(1 +\frac{r}{n})^{nt} [/tex]
Where,
A = the future value of the investment/loan, including interest
P = the principal investment amount (the initial deposit or loan amount)
r = the annual interest rate (decimal)
n = the number of times that interest is compounded per year
t = the number of years
Given that,
P = $6000
r = 8% = [tex] \frac{8}{100} [/tex] = 0.08
n = 2 (because of twice in a year)
t = 35 years
[tex] A= 6000(1 + \frac{0.08}{2}) ^{2*35} [/tex]
A = 6000[tex] (1.04)^{70} [/tex]
A= $93429.71 (Option D)
Over what interval is the growth rate of the function decreasing?
Answers
(-infinity, ln9/3)