Answer:
x=−2+2y/5
Step-by-step explanation:
Add 2y to both sides of the equation.5x=−10+2y
Divide each term in 5x=−10+2y by 5 and simplify.
Divide each term in 5x=−10+2y by 55x5=−105+2y5Simplify the left side
. Cancel the common factor of 5
Cancel the common factor.5x5=−105+2y5Divide x by1.x=−105+y5
Simplify the right side.
Divide
−10 by 5
Does the infinite series converge or diverge? If it converges, what is the sum?
b. 1/3 - 1/9 + 1/27 - 1/81 + . . . .
A geometric series exist as the totality of an infinite number of terms that contain a constant ratio between consecutive terms.
The sum of the infinite series is 1/4.
What is an infinite geometric series?The result of an endless geometric sequence exists an infinite geometric series. There would be no conclusion to this series. There would be no conclusion to this series. The infinite geometric series has the general form a1 + a1r + a1r² + a1r³+…, where r is the common ratio and a1 is the first term.
The equation be S = a1/(1-r), where s is the total, a1 is the series first term, and r is the common ratio, is a general formula for calculating the sum of an infinite geometric series. The formula a2/a1, where a2 is the second term in the series and a1 is the first term in the series, can be used to determine the common ratio.
Given: a(first term) = 1/3
r(common ratio) = a2/a1
= (-1/9)/(1/3) = -1/3
Since | r | ∠ 1, the infinite series converges.
The sum of infinite geometric series is:
S∞ = a/(1 - r); -1 ∠ r ∠1
S∞ = (1/3) / (1+(1/3)) = 1/4
The sum of the infinite series is 1/4.
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Amy hiked due east for 2 miles and then hiked due south for 3 miles.
b. How far and in what direction is Amy from her starting position?
The distance between Amy's initial and final position is 1 mile and she is facing South direction
It is given that,
Amy first moves towards East direction in reference to her initial position for 2 miles
The distance covered by Amy in East direction = 2 miles
Then,
Amy moves towards South direction in reference to her initial position(facing East side) for 3 miles
The distance covered by Amy in South direction = 3 miles
We need to find,
The distance between Amy's initial and final position which will be given by the displacement between both points
Let's say that the positive direction is East and the negative direction is south.
The distance covered by Amy in East direction = + 2 miles
The distance covered by Amy in South direction = - 3 miles
Then , +2 +(-3) = -1
Hence, the distance between Amy's initial and final position is 1 mile and she is facing South direction
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Determine the distance between each pair of points. Then determine the coordinates of the midpoint M of the segment joining the pair of points.
P(-2,-5,8) and Q(3,-2,-1)
The midpoint is at (1/2 , -3, 7/2 )
In the given statement is
To find the midpoint of the line segment joining the pair of points
P(-2,-5,8) and Q(3,-2,-1)
Midpoint:
The coordinates of the midpoint of a line segment are the average of the coordinates of the end points.
m = (A +B)/2
If we are given three points and we wish to find the midpoint of those points, we need to use the midpoint formula m =( [tex]\frac{x_{1}+x_{2} }{2}[/tex] ,[tex]\frac{y_{1}+y_{2} }{2}[/tex] , [tex]\frac{z_{1}+z_{2} }{2}[/tex])
where:
(x1 , y1 ,z1) are the coordinates of the first point:
(x2 , y2 , z2) are the coordinates of the second point:
Now, We are given the three points P(-2,-5,8) and Q(3,-2,-1)
Solving for the midpoint , we have,
m = ([tex]\frac{-2 + 3}{2} , \frac{-5+ (-2)}{2} , \frac{8 +(-1)}{2}[/tex])
m = (1/2 , -3, 7/2 )
Therefore, the midpoint is at (1/2 , -3, 7/2 )
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What is the answer to this problem ?
Answer:
2(x + 6) = 38
Step-by-step explanation:
First, we choose a variable to represent the unknown number.
1. Let x = the unknown number.
Then, we translate the sentence into an equation using the variable we chose.
"Twice the sum of six and a number is 38."
We do it piece by piece:
"the sum of six and a number": x + 6
"Twice the sum of six and a number": 2(x + 6)
"Twice the sum of six and a number is 38.": 2(x + 6) = 38
Now we have an equation that represents the sentence.
2(x + 6) = 38
Find the area and perimeter of each shape.
Answer:
perimeter=4l then multiply with how many square are there
then area = l²
multiple with how many square are there
F four out of every nine trick-or-treaters that came to your house last halloween were dressed as snow white, what proportion of trick-or-treaters were not dressed as snow white?
The ratio of trick-or-treaters who were not dressed as snow white last Halloween is 5/9
Ratio is the relationship between two quantities, normally expressed as the quotient of one divided by the other.
It can be expressed in different ways:
1) Use the ":" to separate the values : a : b
2) Use the word "to" : a to b
3) Write it in fraction: a / b
On the other hand, proportion is the equality of two or more ratios.
example: a : b = c : d
If four out of every nine trick-or-treaters that came to your house last Halloween were dressed as snow white, then the rest were not dressed as snow white.
9 - 4 = 5
If five out every nine trick-or-treaters that came to your house last Halloween were not dressed as snow white, we can express the ratio as
5 out of 9 or 5 : 9 or 5/9
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Determine whether each formula is explicit or recursive. Then find the first five terms of each sequence. a₁ = -121, a n =a n₋₁ +13
This is recursive sequence and -121,-108,-95,-82,-69,-56 these are the first five terms of sequence.
How to find the first five terms of sequence. a₁ = -121, a (n) =a (n-1)+ 13?A recursive formula is one that defines each term in a sequence by reference to the one before it. The following parameters are defined using the recursive formulas:
1. The initial term in the series.
2. The general rule for determining any term from its preceding term.
Recursive Arithmetic Sequence Formula
The following is the recursive formula to determine the nth term in an arithmetic series:
an = an-1 + d for n ≥ 2
where
The common difference is d, and an is the nth term of an A.P.
given that
a₁ = -121
a (n) =a (n-1) +13 so, d = +13
For example, we need to extend the sequence term by term in order to find the first five terms:
a(1) = -121
a(2) = a(1) + d = -121 + 13 = -108
a(3) = a(2) + d = -108 + 13 = -95
a(4) = a(3) + d = -95 + 13 = -82
a(5) = a(4) + d = -82 + 13 = -69
a(6) = a(5) + d = -69 + 13 = -56
a(7) = a(6) + d = -56 + 13 = -43
Hence,this is recursive sequence and -121,-108,-95,-82,-69,-56 these are the first five terms of sequence.
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Write the estimated
thickness of a sheet of
paper using a single digit
and a power of 10.
Round 0.0013 to 0.001.
Write 0.001 as 1 x 10-³.
The estimated thickness of a sheet of paper using a single digit and a power of 10 as required in the task content is; 1 × 10-³.
What is the estimated thickness of a sheet of paper using a single digit and a power of 10 as required?It follows from the task content that the estimated thickness of paper such that it is written using a single digit and a power of 10 as required in the task content is to be determined.
Given;
Thickness of sheet = 0.0013.
By rounding to one significant digit; the digit is considered and rounded down to zero which is added to 1 so that we have;
= 0.001.
On this note, since the number, 0.001 can be written via the laws of indices as;
= (1/1000)
= 1/10³
And ultimately, we have
= 1 × 10-³.
Ultimately, the estimated thickness of a sheet of paper using a single digit and a power of 10 as required in the task content is; 1 × 10-³.
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Factor the expression: 3x² - 7x + 2
Answer:
2 or 1/3
Step-by-step explanation:
by getting the product and sum,then the roots
Determine the truth value of the given conditional statement. If true, explain your reasoning. If false, give a counterexample.
If a number is divisible by 6 , then it is divisible by 3 .
The given conditional statement is true that is If a number is divisible by 6, then it is divisible by 3".
What are conditional statement?A conditional statement involves 2 propositions, p and q. The conditional statement, is a proposition which we write as;
p⇒q, and read "if p then q"
An example of a conditional statement is : p⇒q, that is:
if Triangle ABC is a right triangle with m(C)=90° then The sides of triangle ABC are such that AB^2 = BC^2 + AC^2
"If a number is divisible by 3, then it is divisible by 6." is the inverse of the conditional statement "
Thus If a number is divisible by 6, then it is divisible by 3".
Therefore, the given conditional statement is true that is If a number is divisible by 6, then it is divisible by 3".
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If P Q R S is translated along <3,-2 >, reflected in y=-1, and rotated 90° about the origin, what are the coordinates of P''' Q''' R''' S''' ?
P'''( 1 , -2 ) Q'''( 0 , 1) R'''( -1 , 3 ) S'''( -2 , 0) are the coordinates of P''' Q''' R''' S''' .
What does the term "coordinates" mean?
Coordinates are numerical lengths or angles that uniquely identify locations on two-dimensional (2D) surfaces or in three-dimensional (3D) space ( 3D ). Mathematicses, scientists, and engineers frequently employ a variety of coordinate systems.( x , y) → ( x + 3 , y - 2 )
p' ( -2, -1 ) Q' ( 1 , 0) R'( 3, -3 ) S'(0, -4 )
( x , y ) → ( x , -2 - y)
p''(-2 , - 1 ) Q''( 1 , 0 ) R''( 3 , 1 ) S''( 0,2 )
( X , Y ) → ( -Y , X )
P'''( 1 , -2 ) Q'''( 0 , 1) R'''( -1 , 3 ) S'''( -2 , 0)
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Determine whether each infinite geometric series diverges or converges.
If the series converges, state the sum. 1-1+1- . . . .
Determine whether each infinite geometric series diverges or converges.The series converges.
If the series converges, state the sum. 1-1+1- . . . .
The sum of the infinite series is 1/2
What is the sum of the infinite series?
Given:
[tex]a(\text{ the first term})=1\\\\r(\text{ the common ratio})= \frac{a_2}{a_1} = \frac{-1}{1}=-1[/tex]
Since [tex]\vert r\vert < 1[/tex] , the infinite series converges.
The sum of infinite geometric series is:
[tex]S_\infty=\frac{a}{1-r} ; -1 < r < 1\\\\S_\infty=\frac{1}{1+1} =\frac{1}{2}[/tex]
The sum of the infinite series is 1/2
What is an infinite geometric series?
The result of an endless geometric sequence is an infinite geometric series.There would be no conclusion to this series.The total of all finite geometric series can be determined.However, if the common ratio of an infinite geometric series is bigger than one, the terms in the sequence will grow steadily larger, and adding the larger numbers together will not yield a solution.To learn more about infinite geometric series, refer:
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The measure of the supplement of an angle is four times the measure of the angle. Find the measures of the angle and it's supplement.
The measures of the angle and it's supplement are144° and 36° respectively.
supplementary angles are those angles that sum up to 180°. The supplement of an angle is calculated by subtracting the value of the angle from 180°.The measure of the supplement of an angle is four times the measure of the angle. (given)
Let us consider the value of the supplement be X°.
Therefore the value of the angle is 4X°
180 - X = 4X
X = 36° (The value of supplement)
180°-X = 144°( The value of angle)
Hence the angles are 36° and 144° .
The measures of the angle and it's supplement are144° and 36° respectively.
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Are 1 divided by 3/4 and 1/3 divided by 4 equivalent fractions?
Answer:
No Because 1/1 : 3/4 = 4/3 and 1/3 : 4/1 = 1/12
What is the common ratio in the geometric sequence 4,10,25,62.5, . . . . . ?
(A) 0.4 (B) 2.5 (C) 15 (D) 25
The common ratio of the geometric sequence 4, 10, 25, 62.5, . . . is 2.5. The answer is B.
A geometric sequence refers to a sequence of numbers, which the next term is obtained by multiplying the previous term with a constant, called a common ratio.
a(n) = a r^(n-1)
Where:
a(n) = nth term
a = first term
r = common ratio
The common ratio must be the same for all pairs of succeeding term to be called a geometric sequence.
To find the common ratio, use the formula
a(n) = a r^(n-1)
let n = 2, a = 4, a(2) = 10
10 = 4(r^(2 - 1)
10 = 4(r)
r = 2.5
Or just simply divide each succeeding pairs of the sequence.
r = 10/4 = 2.5
r = 25/10 = 2.5
r = 62.5/25 = 2.5
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Determine whether the events are independent or dependent. Then find the probability. In a game, you roll an even number on a die and then spin a spinner numbered 1 through 5 and get an odd number.
Given events are independent events and the probability that getting an even number on die and getting odd number on a spinner numbered 1 to 5
In this question,
we have been given two events.
Let event A: rolling an even number on a die
event B: spin a spinner numbered 1 through 5 and get an odd number.
We can clearly observe that the occurrence of event A is not dependent on the other event B.
So, event A and event B are independent events.
The probability of event A is,
P(A) = n(A) / n(S)
here, sample space, n(S) = 6
n(A) = 3
So, P(A) = 3/6
P(A) = 1/2
The probability of event B is,
P(B) = n(B) / n(S)
here, sample space, n(S) = 5
n(B) = 3
So, P(B) = 3/5
Now we find the joint probability of these independent events.
⇒ P = P(A) × P(B)
⇒ P = 1/2 × 3/5
⇒ P = 3/10
Therefore, given events are independent events and the probability that getting an even number on die and getting odd number on a spinner numbered 1 to 5
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What is the solution of the system? x - 2y = 4 3x + y = 4
The given equations are
[tex]x-2y=4[/tex] …(1)
[tex]3x+y=4[/tex] …(2)
Using Substitution method,
From the equation (1) [tex]x-2y=4[/tex] , the value of x is
= [tex]x=4+2y[/tex]
Putting the value of x in equation (2), we get
= [tex]3(4+2y)+y=4[/tex]
= [tex]12+6y+y=4[/tex]
= [tex]12+7y=4[/tex]
= [tex]7y=-8[/tex]
= [tex]y=-\frac{8}{7}[/tex]
Now, putting the value of y in equation (1), we get
= [tex]x-2(-\frac{8}{7}) =4[/tex]
= [tex]x+(\frac{16}{7}) =4[/tex]
= [tex]x =4-(\frac{16}{7})[/tex]
= [tex]x =(\frac{28-16}{7})[/tex]
= [tex]x =(\frac{12}{7})[/tex]
∴ The value of x is [tex]\frac{12}{7}[/tex] and the value of y is [tex]-\frac{8}{7}[/tex]
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The value of x is (12/7) and the value of y is (-8/7) for the given equation.
The given equations are
x - 2y = 4 equation (1)
3x + y = 4 equation (2)
Using Substitution method,
From the equation (1) i.e., x - 2y = 4 , the value of x is
x = 4 + 2y
Putting the value of x in equation (2), we get
3 ( 4 + 2y ) + y = 4
⇒ 12 + 6y + y = 4
⇒ 12 + 7y = 4
⇒ 7y = (-8)
⇒ y = (-8/7)
Now, putting the value of y in equation (1), we get
x - 2 ( -8/7 ) = 4
⇒ x + ( 16/7 ) = 4
⇒ x = 4 - ( 16/7 )
⇒ x = ( 28 - 16 )/ 7
⇒ x = 12/7
∴ The value of x is (12/7) and the value of y is (-8/7).
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The mean income of households in the US is $75,000 per year. The median household income in the US is $42,000 per year. Describe the shape of income in the US. skewed left, mean > median skewed left, mean < median skewed right, mean > median skewed right, mean < median
Answer:
skewed right, mean > median
Step-by-step explanation:
just did it
Answer:
skewed right, mean>median
Step-by-step explanation:
edge 2023
Find the midpoint of the line segment with the given
endpoints.
(-4, 5) and (2, 5).
Answer:
Midpoint = (-1, 5)
Step-by-step explanation:
x₁ + x₂ y₁ + y₂
Midpoint = (--------------- , -----------------)
2 2
-4 + 2 5 + 5
Midpoint = (--------------- , -----------------)
2 2
-2 10
Midpoint = (--------------- , -----------------)
2 2
Midpoint = (-1, 5)
I hope this helps!
prove (1+cot55) (1+cot80) (1+cot77) (1+cot58)=4
cot(55°) = 0.70021 ... cot(58°) = 0.62487 ... cot(77°) = 0.23087 ... cot(80°) = 0.17633
(1+cot55)(1+cot80)(1+cot77)(1+cot58).
In trigonometry, the cot or cotangent is one of the six trigonometric ratios. In a right triangle, the lattice of angles is equal to the ratio of the adjacent and opposite sides of the angle. Cot x is also equal to the reciprocal of tan x.
Therefore, the cotangent of the angle α of a right triangle is equal to the length of the adjacent side b divided by the opposite side a. To remove the crib, simply enter the length of the adjacent and opposite sides, then remove it. This formula can be very similar to the formula used to calculate the tangent.
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I need help with the answer for Geometry, could someone help?
Answer:
48
Step-by-step explanation:
ABC is a right triangle so the masure of ∠A = 90°
The sum of interior angles in a triangle is equal to 180 so we will write an equation accordingly to find the
missing angle:
90 + 2x + 14 + 4x - 26 = 180 add like terms
78 + 6x = 180 subtract 78 from both sides
6x = 102 divide both sides by 6
x = 17
Now replace x with 17 to calculate the measure of m∠B
2*17 + 14 = 48
Read the problem. Identify what you need to know. Then organize the data to solve the problem.
Alana has the letter tiles A, H, M , and T in a bag. If she selects a permutation of the tiles at random, what is the probability she will spell the word MATH?
A. 1/4
B. 1/12
C. 3/50
D. 1/24
The probability she will spell the word MATH P(MATH) is 1/12
What is the probability?Probability refers to a possibility that deals with the occurrence of random events.
The probability of all the events occurring need to be 1.
The formula of probability is defined as the ratio of a number of favorable outcomes to the total number of outcomes.
Given ; Alana has the letter tiles A, H, M , and T in a bag. If she selects a permutation of the tiles at random.
The different arrangements which can be made out of a given number of objects by taking out some or all at a time are called permutations.
Permutations of "MATH"
4P4 = 4! = 24
Two of the 'MATH" s we can get as a result
Then the probability she will spell the word MATH
P(MATH) = 2/24 = 1/12
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Four friends are sitting at a table together at the prom. What is the probability that a particular one of them will sit in the chair closest to the dance floor?
The probability that a particular one of them will sit in the chair closest to the dance floor is 1/4.
Linear Permutation:
Linear permutation defines the number of ordered arrangement of objects in a line while circular permutations is an ordered arrangement of objects in a circular manner.
Given,
Four friends are sitting at a table together at the prom.
Here we need to find the probability that a particular one of them will sit in the chair closest to the dance floor.
Since the samples are arranged with a fixed reference point, this is a linear permutation.
So there are 4! or 24 ways in which the samples can be arranged.
The number of favorable outcomes is the number of permutations of the other 3 people given that a particular one of them will sit in the chair closest to the dance floor, 3! or 6.
Therefore, the probability is
=> 6/24
=> 1/4.
Therefore, the probability that a particular one of them will sit in the chair closest to the dance floor 1/4.
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okay can someone help me with this question please! it says look at the given exponents 7 and 4 how can we easily combine them to get our result?
Choices are
[7] [4]
7/4
7-4
7+4
Answer:
7+4 (11)
Step-by-step explanation:
I think you are asking about an equation that looks like this
x^7*x^4
When multiply exponents they are added together and the sum is what the new exponent is.
7+4=11
11 is the new exponent
x^11
So I believe the answer would be 7+4? But I don't fully understand what your question is.
HELP WITH THIS PROBLEM PLS PLS
Answer:
Here,
MP=MN+NP=17+3y
or, 5y+9=17+3y
Now do equation and find the value of y.
Answer:
MP = 29
mp = mn + np
17 + 3y = 5y + 9
2y = 8
y= 4, NP = 3(4) = 12
so, MP = mn + np.... 12 + 17
MP = 29
360 kilometers/ hour= m/s
Answer:
100 m/s
Step-by-step explanation:
divide by 3.6 to get km/h to m/s, multiply by 3.6 to get m/s to km/h!
Is 7√56 rational or irrational? Explain.
What is Irrational Number?
An Irrational number is areal number that cannot be expressed as a ratio of integers; for example [tex]\sqrt{2}[/tex] is an irrational number. We cannot express any irrational number in the form of ratio, such as p/q, where p and q are integers, q[tex]\neq[/tex] 0. Again, the decimal expansion of an irrational number in neither terminating nor recurring.
Let us assume [tex]7\sqrt{56}[/tex] is rational.
So, we can write this number as
[tex]7\sqrt{56}[/tex] = a/b __(1)
Here, a and b are two co-prime numbers and b is not equal to zero.
Simplify the equation (1) divide by 7 both sides, we get
[tex]\sqrt{56}=\frac{a}{7b}[/tex]
Here, a and b are integers, so a/7b is a rational number, so [tex]\sqrt{56}[/tex] should be a rational number.
But [tex]\sqrt{56}[/tex] is a irrational number, so it is Contradictory.
Therefore, [tex]7\sqrt{56}[/tex] is irrational number.
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Simplify by combining like terms. 7 b-(3 a-8 b)
By combining the like terms, the simplified form of the expression 7b-(3a-8b) is -3a+15b
Given,
The algebraic expression = 7b-(3a-8b)
Expand the expression
7b-(3a-8b)= 7b-3a+8b
Rearrange the terms and combine like terms
7b-3a+8b= -3a+7b+8b
=-3a+(7+8)b
=-3a+15b
Hence, By combining the like terms, the simplified form of the expression 7b-(3a-8b) is -3a+15b
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Evaluate the equation: 6w = 180
w =
Answer: Evaluate
6w=180
Divide both sides
6
6w = 6
180
Simplify
6
6w =30
Solution
w=30
Step-by-step explanation: hope this helps
PLEASEEE HELP!!!!!!!!
Answer:
108°
Step-by-step explanation:
Since angle WYT and angle UYW lie on the same line, we can use linear pair fidn the answer.
That is: 180-72= angle UYW
Therefore angle UYW=108°
-Hence proved:)