Answer:
arithmetic sequence is a sequence where the difference between a successive terms is constant
Step-by-step explanation: arithmetic series is the sum of the terms of an arithmetic sequence
Find the equation of the line shown.
y
10
98765
4
3
2
1
0 1 2 3 4 5 6 7 8 9 10
32
X
The equation of the line shown is y = x + 1
How to find the equation of the line shown?The graph represents the given parameter
On the graph, we have the following points
(x, y) = (0, 1) and (1, 2)
The equation of the line is then calculated as
y = (y2 - y1)/(x2 - x1) * (x - x1) + y1
This gives
y = (2 - 1)/(1 - 0) * (x -0) + 1
Evaluate the difference
y = 1/1 * (x) + 1
Evaluate the product
y = x + 1
Hence, the equation of the line shown is y = x + 1
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At a tire factory, 12 out of every 3500 are defective. If 80,000 tires are made, using the same rate, how many tires are expected to be defective? Round your answer to the nearest whole number.
A. 213
B. 239
C. 278
D. 274
E. 281
Find the geometric mean between each pair of numbers.
36 and 48.
The Geometric mean of 36 and 48 is [tex]24\sqrt{3}[/tex].
Geometric Mean between two numbers is defined as the Square root of the product of those two numbers .
For Example ; let a and b be two numbers , their geometric mean will be
GM=[tex]\sqrt{a*b}[/tex]
In the given question
a=36 and b=48
Substituting the values in the Geometric mean formula we get .
[tex]GM=\sqrt{36*48} \\ \\ =\sqrt{1728} \\ \\=24\sqrt{3}[/tex]
Therefore , the Geometric mean of 36 and 48 is [tex]24\sqrt{3}[/tex].
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-3c-3y=-9 5c-2y=-27 please help asap
The solution of the equation is (-3, 6).
How to solve system of equation?-3c - 3y = -9
5c - 2y = -27
Therefore, using elimination method, the equation can be solved as follows:
multiply equation(ii) by 1.5(3 /2)
-3c - 3y = -9
7.5c - 3y = - 40.5
subtract equation(i) from equation(ii)
10.5c = - 31.5
divide both sides by 10.5
c = -31.5 / 10.5
c = -3
Therefore,
5c - 2y = -27
5(-3) - 2y = -27
-15 - 2y = -27
-2y = -27 + 15
-2y = - 12
divide both sides by -2
y = -12 / -2
y = 6
Therefore, the solution of the equation is (-3, 6).
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Solve for x and graph the solution on the number line.
As a single inequality, we can write the solution of the given compound inequality as → x ≥ 8.
What are two types of inequalities?There are two types of inequalities -
Strict inequalities : The inequalities that have < or > symbol between the L.H.S and R.H.S.
Slack inequalities : The inequalities that have ≤ or ≥ symbol between the L.H.S and R.H.S.
Given in the question are two inequalities as mentioned below -
-2x - 3 < -1 and -2x - 3 ≤ -11
In this question → -2x - 3 < -1 is a strict inequality and -2x - 3 ≤ -11 is a slack inequality. We will solve them one by one.
Inequality - 1
- 2x - 3 < - 1
Add 3 on both sides -
- 2x - 3 + 3 < - 1 + 3
- 2x < 2
Multiply by -1/2 on both sides -
x > - 1
Inequality - 2
-2x - 3 ≤ -11
Add 3 on both sides -
-2x ≤ -8
Multiply by -1 on both sides -
2x ≥ 8
Divide by 2 on both sides -
x ≥ 8
Now, we have two inequalities -
x > - 1 and x ≥ 8
We can write it as one equality -
x ≥ 8
Therefore, as a single inequality, we can write the solution of the given compound inequality as → x ≥ 8.
[Graph is attached at the end]
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Evaluate the sum of the finite geometric series. Σ⁴ n=1 (1/2)ⁿ⁺¹
Sn = a(1 - rⁿ)/(1 - r) is the formula for the sum of a finite number of terms in a geometric series, where is the number of terms, is the first term, and is the common ratio.
The sum of the finite geometric series Σ⁴ n=1 (1/2)ⁿ⁺¹ is 0.46875.
What is meant by finite geometric series?The equation be Sn = a(1 - rⁿ)/(1 - r), where s exists the total, a1 exists the series first term, and r exists the common ratio, is a general formula for estimating the sum of an finite 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.
Let the sum of the finite geometric series be Σ⁴ n=1 (1/2)ⁿ⁺¹
Σ⁴ n=1 (1/2)ⁿ⁺¹ = (1/2)¹⁺¹ + (1/2)²⁺¹ +(1/2)³⁺¹ + (1/2)⁴⁺¹
simplifying the above equation, we get
= (1/2)² + (1/2)³ + (1/2)⁴ + (1/2)⁴⁺¹
= (1/4) + (1/8) + (1/16) + (1/32)
Where, the first term is a = 1/4
common ratio be r = 1/2
n th term be n = 4
Let the equation be Sn = a(1 - rⁿ)/(1 - r)
substitute the values in the above equation, we get
S4 = (1/4) (1-(1/2)⁴) / (1 - (1/2))
simplifying the above equation, we get
S4 = (1/4) (15/16) × 2 = 15/32 = 0.46875
Therefore, the sum of the finite geometric series Σ⁴ n=1 (1/2)ⁿ⁺¹ is 0.46875.
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Which property is needed to solve this equation? 7 + x = 39
How is diving each side by x>0 by a negative value different from diving each side by a positive value
Yes, the results of dividing X by a negative value and dividing X by a positive value are different. If we divide X by a negative value, the result will be negative, and if we divide X by a positive value, the result will be positive.
For instance:
It is true that 8 > 2 is unequal.
Divide both sides by 2, then:
True inequality also exists when 4 > 1. Due to the fact that we divided by a positive number, the inequality symbol remained.
Let's begin once more with
8 > 2, and apply a -2 to both sides.
-4 > -1 is erroneous. The inequality is no longer valid if the inequality sign changes when both sides are divided by a negative integer. When dividing both sides by a negative integer, the inequality sign must be changed in order to maintain its validity.
8 > 2
Add a -1 to both sides.
True for -4 < -1.
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Identify pair of angles as alternate interior, alternate exterior, corresponding, or consecutive interior angles.
∠1 and ∠ 11
∠1 and ∠11 are corresponding angles.
What are alternate interior angles ?The alternates interior angles are formed when the transversal line intersects the two coplanar lines as the name the angles are interior to the figure and are alternative to each other as well.
What are alternate exterior angles?Alternate exterior angles are at the opposite side of the transversal line and are at external to the figure or we can say that on outside boundaries of the figure.
What are corresponding angles?These angles are the same side of any two of the parallel lines in the figure cut by the transversal line . They show a correspondence behavior with respect to each other.
What are consecutive interior angles?When any of the two lines in figure are cut by a transversal line, then the pair of angles on any of the one side of the transversal line and interior of the two lines are called the consecutive interior angle.
According to given question ∠1 and ∠11 are corresponding angles.
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The complete question :
Identify pair of angles as alternate interior, alternate exterior, corresponding, or consecutive interior angles.
∠1 and ∠ 11
Write an equation of each line in standard form.the line parallel to y=-3 x+4 through (0,-1)
The standard form is y - 1/3x + 1 = 0 for line parallel to y=-3 x+4 through (0,-1)
How to solve an equation?To solve linear equations, utilize the steps that are provided below.
Remove parentheses from each side of the equation and combine similar terms to make it simpler.To separate the variable term on one side of the equation, use addition or subtraction.To find the variable, use division or multiplication.The common denominator can be multiplied by each side of the equation to eliminate fractions.Lets take an example of solve z for 7z – (3z – 4) = 12
Here is no multiplication or division, so this will be easy to solve
⇒ 7z – (3z – 4) = 12
⇒ 7z – 3z + 4 = 12
⇒ 4z = 12 – 4
⇒ 4z = 8
⇒ z = 8/4
⇒ z = 2
See, that was so simple, using the mentioned methods, every linear equation can be solved easily.
In an equation, parallel lines have the opposite reciprocal slope. In other words, if a line's slope is a positive fraction, its reciprocal slope is negative.
Here given that y=-3 x+4
Here -3 is the slope and 4 is the y-intercept
To find a parallel line to the following equation, use the opposite reciprocal slope and point, then solve using the point-slope formula.
y - y₁ = m(x - x₁)
We have, m = 1/3, x₁ = 0 and y₁ = -1
y - (-1) = 1/3(x - 0)
y + 1 = 1/3(x - 0
y = 1/3x -1
y - 1/3x + 1
We have the standard form y - 1/3x + 1 = 0 of a line perpendicular to y = (2/3)x - 1 through (0,6)
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There are 24 baseball teams in a league.
Each team plays two matches against each of the other teams.
Work out the total number of matches played?
(I have already tried writing 552 but it marking it wrong).
There are 534 played games in total.
How to get the total number of matches played?
There are 24 teams, and each team plays 2 matches against each one of the other teams.
So, let's say that each team is called team 1, team 2, team 3, ..., team 24.
If we start with team 1, they will play 2 games with each one of the other 23 teams, so here we will have: 23*2 = 46 games.
Now we go to team 2, we already counted the 2 games that the played with team 1, so we only look at the remaining 22 teams, here we will have:
22*2 = 44 more games.
Now with team 3, there are 21 teams remaining, so here we add another 2*21 = 42 games
And so on, now we do that for all the teams and then add all the numbers of games, the total number of games will be given by:
N = 2*(23 + 22 + 21 + ... + 2 + 1) = 534
There are 534 played games in total.
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What is 2x-3>7 solve for x
Answer:
x>5
Step-by-step explain
+3 to 7
divide 2 from ten
On the grid draw the graph of y=3x+2 for values of x from -2 to 2
Answer:
Graph attached
Step-by-step explanation:
Find algebraically y values for x = -2 and x = 2 and connect the two points by a line
Equation: y = 3x + 2
For x = -2, y = 3(-2) + 2 = -6 + 2 = -4
For x = 2, y = 3(2) + 2 = 6 + 2 = 8
So the two points are (-2, -4) and (2, 8)
Find the distance between the pair of points. N(-3,-10), P(-3,-2)?
Answer:
8
Step-by-step explanation:
Use the Pythagorean theorem:
a^2+b^2=c^2
(You have to count the distance of x and y, then plug those number in the formula)
0^2+8^2=c^2
64=c^2
square root it
8=c
You can also use the distance formula
square root of (x2-x1)^2+(y1-y2)^2
square root of (-3-(-3))^2+(-2-(-10))^2
=8
(I'm pretty sure, if it's wrong I'm sorry)
Determine whether the statement is always, sometimes, or never true. Explain your reasoning.
The geometric mean for two positive integers is another integer.
The statement is sometimes true.
The given statement is ' The geometric mean for two positive integers is another integer.'
Geometric mean of two integers is the square root of their product.
If a and b are two integers, then geometric mean = [tex]\sqrt{ab}[/tex]
Its value need not be an integer always. In some cases the statement fails.
For example, let a = 3 and b = 6
Then geometric mean = [tex]\sqrt{3 \times 6} = \sqrt{18}[/tex] = 4.24, which is not an integer.
Now if a and b are equal numbers, we will get an integer as the geometric mean. Because then their product will be a perfect square and taking square root, we get the same number as the geometric mean.
Also consider a = 9 and b = 4
Then their geometric mean = [tex]\sqrt{36}[/tex] = 6
So sometimes the statement is true but not always.
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Carter wants to ride his bicycle 28.7 miles this week. He has already ridden 17 miles.
If he rides for 3 more days, write and solve an equation which can be used to determine m, the average number of miles he would have to ride each day to meet his goal.
Carter needs to ride 3.9 miles per day on an average to meet his target of riding 28.7 miles in a week.
We are given that:
The total number of miles that needs to be ridden by Carter = 28.7 miles
Now, he has already ridden 17 miles this week
So, the miles left to be ridden = 28.7 miles - 17 miles
Number of miles left = 11.7 miles.
Now, he has 3 more days to finish his target.
So, on an average, he should ride:
Average = 11.7 miles / 3 days = 3.8 miles per day
Therefore, Carter needs to ride 3.9 miles per day on an average to meet his target of riding 28.7 miles in a week.
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The angle measurements in the diagram are represented by the following expressions.
B = 3x + 53°
A= 6x - 35°
Solve for x and then find the measure of A:
The value of x is 18° and the value of the angles A and B are 73° and 107° respectively.
We are given the angle measurements as:
A = (6x - 35)°
B = (3x + 53)°
We need to solve for x and find the values of A and B
We know that co- interior angles are supplementary.
So, we get that:
A + B = 180°
Substituting the values of A and B in the above equation, we get that:
6 x - 35 + 3 x + 53 = 180
9 x + 18 = 180
9 x = 180 - 18
9 x = 162
x = 162 / 9
x = 18
So, we now get that:
A = (6x - 35)°
A = (6(18) - 35)°
A =(108 - 35)°
A = 73°
B = (3 x + 53)°
B = (3 (18) + 53)°
B = ( 54 + 53 )°
B = 107°
Therefore, we get that the value of x is 18° and the value of the angles A and B are 73° and 107° respectively.
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Find the volume of a cube with a side of 6 cm. It has a mass of 457 g. Find its density and label with correct units.
Answer: 8.1 g/cm
Step-by-step explanation:
Density is equal to mass divided by volume. You are given a mass of
64.7
grams. You can find the volume of the cube by doing height multiplied by width multiplied by the depth.
Because all of the sides of a cube are the same length, the volume just ends up being
(2 cm) = 8 cm
Now plug both of those numbers into your density equation
p= m/v = 64.7 g/8 cm = 8.1 g/cm
~Hope this helps ;0~
Answer:
[tex]2.11 \: \: gram \: per \: cm {}^{3}[/tex]
The density is 2.11 g/cm^3
Step-by-step explanation:
Density is the ratio of the mass of a body per volume. To find density we need mass and volume.
side given (l) =6 cm
Volume of the cube = l^3
= 6^3
= 6 * 6 * 6
= 216 cm^3
we have mass = 457 g
Now,
density= mass/volume
= 457/216
=2.11
Soo, the density is 2.11 g/cm^3
Tonya works 3.5 hours in 1 day. Which equation best represents y, the total number of hours Tonya works in x days if she continues at this rate?
y = 3.5x is the equation that represents y, the total number of hours Tonya works in x days if she continues at the given rate.
Unitary method is a concept in which the value of a single unit is first found out and then multiplied by the necessary value to get the required answer.
Here, we are given that Tonya works 3.5 hours in 1 day.
The total number of days = x
and the total number of hours Tonya works in x days = y
If she works for 3.5 hours in 1 day, in x days she will work-
x x 3.5
= 3.5x hours
Thus, y = 3.5x hours
Hence, y = 3.5x is the equation that represents Tonya's situation.
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A bag contains one tile for each letter of the word TRAINS. If you selected a permutation of these letters at random, what is the probability that they would spell TRAINS?
The probability that they would spell TRAINS is 1/720.
Probability:
Probability refers the fraction of favorable event by the total number of event.
Given,
A bag contains one tile for each letter of the word TRAINS.
Here we need to find If we selected a permutation of these letters at random, what is the probability that they would spell TRAINS.
We know that,
There are 6 letters in the word and the number of arrangements is the permutation of 6 taken 6 at a time.
So, it is written in permutations as,
=> 6! = 720.
The total number of possible outcomes is 720 and there is only one favorable outcome which is TRAINS.
Therefore, the probability is written based on the formula as,
=> 1/720.
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5a= -1 a=
[tex]\frac{b}{-3} = -15 b=
-14+c = -12.5 c=
5a= -1 a=
[tex]\frac{b}{-3} = -15 b=
-14+c = -12.5 c=
Find the area of the figure
Answer: S=93 m²
Step-by-step explanation:
Divide the figure into two rectangles:
1)
S=(3)(11+4)+(12)(4)
S=(3)(15)+48
S=45+48
S=93 m²
2)
S=(3)(11)+(4)(12+3)
S=33+(4)(15)
S=33+60
S=93 m²
8. What is the relationship between the two horizontatalnes?
the two horizontal lines are parallel and intersected by the same third line at the same angle
The length of an animal's stride is the distance between two consecutive tracks. The average stride length of a turkey is about 11 inches. Write a glide reflection that can be used to predict the location of the next track for the following animal tracks.
turkey
The glide reflection ( x + 5.5 , y ) is that is reflected in the line that separates the left prints from the right prints.
A glide translation is what?
A glide reflection is made up of a translation and a reflection in which the translation and the reflection are parallel to each other or the direction of the translation. A gliding reflection has opposite isometry and is -commutative.Now, let's assume that the initial position is (x , y) .
Since, the average stride length of a turkey is about 11 inches; also since the turkey has two legs, therefore, the average stride length between the two legs is as shown below:
average = 11/2 = 5.5
Thus, the glide reflection is ( x + 5.5 , y )
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de los doce estudiantes que tocan el violin dos son mujeres. Que fraccion de violinistas son mujeres?
Answer: 1/6
Step-by-step explanation:
[tex]\displaystyle\\\frac{2}{12} =\\\\\frac{2}{2*6}=\\\\\frac{1}{6}[/tex]
Please help me please help me please
Answer:
you got this question right
# follow me please
Simplify. 2/9 . 4/8
The final answer is 1/9
What is Simplify?
Simplify simply means to make it simple. In mathematics, simply or simplification is reducing the expression/ fraction / problem in a simpler form. It makes the problem easy with calculations and solving.
Given the question:
2/9 . 4/8
Let's start the calculation:
2/9 x 4/8
2/9 x 1/2
=1/9
So, The final answer is 1/9
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A car manufacturer is reducing the number of incidents with the transmission by issuing a voluntary recall. During week 10 of the recall, the manufacturer fixed 200 cars. In week 15, the manufacturer fixed 175 cars. Assume that the reduction in the number of cars each week is linear. Write an equation in function form to show the number of cars seen each week by the mechanic.
f(x) = 5x + 250
f(x) = −5x + 250
f(x) = 10x + 200
f(x) = −10x + 200
Answer :f(x) = -5x + 250
Step-by-step explanation:
* Lets explain how to solve the problem
- In week 10 the manufacturer fixed 200 cars
- In week 15, the manufacturer fixed 175 cars
- the reduction in the number of cars each week is linear
- The form of the linear equation is y = mx + c, where m is the slope of
the line which represent the equation and c is the y-intercept
- The slope of the line m =
where (x1 , y1) and (x2 , y2) are two points on the line
* Lets solve the problem
- Assume that the weeks' number is x and the cars' number is y
∴ (10 , 200) and (15 , 175) are two points on the line which represent
the linear equation between the cars' numbers and the weeks
numbers
∵ Point (x1 , y1) is (10 , 200) and point (x2 , y2) is (15 , 175)
∴ x1 = 10 , x2 = 15 and y1 = 200 and y2 = 175
- Use the rule of the slope above to find m
∴
- Substitute the value of x in the form of the linear equation above
∴ y = -5x + c
- To find c substitute x and y by one the coordinates of one of the
two points
∵ x = 10 when y = 200
∴ 200 = -5(10) + c
∴ 200 = -50 + c
- Add 50 to both sides
∴ 250 = c
- Substitute the value of c by 250
∴ y = -5x + 250, where the number of cars seen each week is y and
x is the number of the week
∵ f(x) = y
∴ f(x) = -5x + 250
Step-by-step explanation:
Answer:
its B
Step-by-step explanation:
the same brand of olive oil is available in 3 sizes
small - 375mL, cost $5
medium -750mL, cost $8
large - 1L, cost $13
calculate the cost per 100mL in each size
Answer:
hu7
h
Step-by-step explanation:
jjjuuuuyyytfgggggggg
PLS HELP ASAP ON TEST WILL GIVE BRAINLI EST IF CORRECT
This is the explanation