Answer: “The graph of an inequality in two variables is the set of points that represents all solutions to the inequality. A linear inequality divides the coordinate plane into two halves by a boundary line where one half represents the solutions of the inequality. The boundary line is dashed for > and < and solid for ≤ and ≥.”
- https://www.mathplanet.com
Step-by-step explanation:
The number below is not correctly written in scientific notation.
0.0038 × 105
What is the new exponent for the power of 10 after rewriting the number correctly in scientific notation?
3.8 × 10?
Write the new exponent value in the blank below. PLEAZ HELP HUGE assignment
The new exponent for the power of 10 after rewriting the number correctly in scientific notation is 2
What is the new exponent for the power of 10 after rewriting the number correctly in scientific notation?The number written in scientific notation is given as.
0.0038 × 10^5
A number written in scientific notation is represented as.
a x 10^b
Where a is any real number between 1 and 10
So, we have
0.0038 × 10^5
Express 0.0038 as a real number between 1 and 10
This gives
0.0038 × 10^5 = 3.8 × 10^-3 × 10^5
Evaluate the products
0.0038 × 10^5 = 3.8 × 10^2
Hence, the new exponent for the power of 10 after rewriting the number correctly in scientific notation is 2
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The point (-4, 1) is rotated 180 degrees counterclockwise using center (-3, 0). What are the coordinates of the image?
The coordinates of the image is (4,-1) that is option D) is correct.
According to the question we have been given that
the point to be rotated = (-4,1)
center = (-3,0)
Rotation = 180° counterclockwise.
Note that when the point is rotated 180° counterclockwise then the coordinate of the image point will be
(x , y ) = (-x , - y)
For the coordinates of the image first we translate the center to the origin that is
(-3,0) = (-3+3,0) = (0,0)
Now we will do same for the point that is,
(-4 , 1) = (-4+3 , 1) = (-1,1)
Now the points are (-1,1). Thus the image will be
(-1,1) = (-(-1), -1) = (1,-1)
Now undoing the original translation :
(1,-1) = (1+3,-1) = (4,-1)
Hence the coordinates of the image is (4,-1) that is option D) is correct.
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Solve for x: 4 − (x + 2) < −3(x + 4) The graph shows a number line with an open circle at negative nine and shading to the left. The graph shows a number line with an open circle at negative nine and shading to the right. The graph shows a number line with an open circle at negative seven and shading to the left. The graph shows a number line with an open circle at negative seven and shading to the right.
After solving the expression 4 − (x + 2) < −3(x + 4), we get the value of x as x < - 7.
We are given the expression:
4 − (x + 2) < −3(x + 4)
Subtract 4 from both the sides, we get that:
4 - x - 2 - 4 < - 3 x - 12 - 4
- x - 2 < - 3 x - 16
- x + 3 x < - 16 + 2
2 x < - 14
x < - 14 / 2
x < - 7
Therefore, after solving the expression 4 − (x + 2) < −3(x + 4), we get the value of x as x < - 7.
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Find n-formula if a1=1, an+1=(n+3)an
The n-formula is [tex]a_{n} = (n+2) a_{n-1}[/tex].
What is mean by series?
The cumulative sum of a given sequence of terms is called a series.
Given that;
[tex]a_{1} = 1[/tex]
[tex]a_{n + 1} = (n+3) a_{n}[/tex]
Now,
Find the series of numbers as;
[tex]a_{n + 1} = (n+3) a_{n}\\[/tex]
Put n = 1,
[tex]a_{1+1} = (1 + 3)a_{1} \\\\a_{2} = 4a_{1} \\[/tex]
Put n = 2,
[tex]a_{2 + 1} = (2+3) a_{2}\\\\a_{3} = 5 a_{3}[/tex]
Put n = 3,
[tex]a_{3 + 1} = (3+3) a_{2}\\\\a_{4} = 5 a_{6}[/tex]
Put n = 4,
[tex]a_{4 + 1} = (4+3) a_{4}\\\\a_{5} = 7a_{4}[/tex]
Hence, Proceed this pattern we get;
[tex]a_{n} = (n+2) a_{n-1}[/tex]
So, The n-formula is [tex]a_{n} = (n+2) a_{n-1}[/tex].
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What is the solution for the system of equations {6x+3y=15 8x+4y=20? 50pts
Answer:
Infinite many solutions.
Explanation:
Equation's:
6x+3y=15 __eq 18x+4y=20 __eq 2make y the subject:
eq 1
6x + 3y = 153y = 15 - 6xy = 5 - 2xeq 2
8x + 4y = 204y = 20 - 8xy = 5 - 2xSolve:
y = y
5 - 2x = 5 - 2x
As both sides are equal, the system of equations have infinite solutions.
How much time does it take for an
object moving at 5m/s to move 20 m?
Answer:
4 seconds
Step-by-step explanation:
In all movement problems, the time is given by finding the ratio between the distance the object moved and the speed the object moved at.
Therefore, [tex]t = \frac{20}5 = 4\text{s}[/tex]
Answer:
The answer should be 4 seconds :)
simone wants to babysit this weekend to make some extra money she changes a flat fee then changes per hour of part thereof that she babysits saturday afternoon she will babysit for 6 hours
The offer that will make her more money and how much more will she make is
The first offer$15 dollars moreThis is further explained below.
Which offer will make her more money and how much more will she make?Generally, the equation for the total made is mathematically given as
T= flat rate +(hours worked*hourly pay)
Therefore, for the first family
T= 40 + (6+5)
T=$51
For the 2nd family
T'= 20 + (6+10)
T'=$36
In conclusion, the offer that will make her more money and how much more will she make is
T'=51-36
T'=$15
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CQ
Simone wants to babysit this weekend to make some extra money she changes a flat fee then changes per hour or part thereof that she babysits Saturday afternoon she will babysit for 6 hours she had to choose between two families to babysit for. the first family offers her 40 plus $5 per hour. The second family offers her $20 and $10 per hour. Which offer will make her more money and how much more will she make
3(x - 2) + 6 = 3x - 6 please show all steps im trying to finish so i can go to bed
I don't see a solution to the given expression.
Expand [tex]3(x-2)+6: 3x[/tex]
[tex]3x=3x-6[/tex]
Subtract 3x from both sides.
[tex]3x-3x=3x-6-3x[/tex]
Simplify.
[tex]0=-6[/tex]
Considering the sides are not equal, there is no solution to the given expression.
A car's engine provides a forward force of 2000 N while the force of air resistance is 800 N in the opposite direction. With what
(1 point)
force will the car move, and in which direction?
O 16000 N forward
O 2800 N forward
O 1200 N backward
O 1200 N forward
The car will move with a force of 1200 N in forward direction .
The correct option is D .
Data obtained from the question
Forward force = 2000 N
Force of air resistance = 800 N
Net force the car will use to move as illustrated below:
Net force = forward force - force of air resistance
Net force = 2000N - 800N
Net force = 1200 N forward
The net force represents the overall force acting on the car. In this case, the net force is 1200 N forward. This means that the car will experience a force of 1200 N pushing it in the forward direction.
Thus, the car will move with a force of 1200 N in forward direction .
The correct option is D .
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an triangle has a angle of 75 degrees, x and y are the missing angles but x is twice y, what are the possibilities of x and y?
Answer:
x = 70°
y = 35°
Step-by-step explanation:
Given one angle of a triangle is 75° and the other two are 'x' and 'y', you want to find the possible values of 'x' and 'y' when x = 2y.
SetupThe angle sum theorem and the given relation give rise to two equations:
75 +x +y = 180
x = 2y
SolutionUsing the second equation to substitute for x in the first equation, we have ...
75 +(2y) +y = 180
3y = 105 . . . . . . . . . subtract 75 and simplify
y = 105/3 = 35
x = 2y = 2(35) = 70
The measures of angles x and y are 70° and 35°, respectively.
Two quantities,
x
and
y
, are directly proportional. If you take a third of
x
, what happens to
y
?
CLEAR CHECK
It is tripled.
It is cubed.
It depends on the starting value of
x
.
It is multiplied by 13
1
3
.
If x and y are directly proportional and we take a third of x we also have to take a third of y, which means we have to multiply y by 1/3.
What is direct and inverse proportion?Two quantities when they are in direct proportion increase or decrease by the same constant and when they are inversely proportional if one quantity increases the other quantity decreases.
We know when two quantities are directly proportional we can relate them by proportionality as x ∝ y or x = ky.
∴ if we take 1/3 of x to maintain the equality we have to multiply y also by 1/3.
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Tess and Alice are both on the swim team. Last practice, they each swam laps for the same amount of time, but Tess finished more laps. This weekend, they're swimming the same number of laps at a swim meet. Who will likely finish first? It's Tess
If Tess and Alice are both on the swim team. Last practice, they each swam laps for the same amount of time, but Tess finished more laps. This weekend, they're swimming the same number of laps at a swim meet. The person that will likely finish first is: Tess.
SpeedSince Tess finished more laps first when she and Alice both swam laps at the same number of time, which in turn means that there is likelihood or tendency that Tess will finish first.
Based on this we can conclude that Tess swab faster that Alice and may likely finish the swam lap before Alice if the both swim the same number of laps.
Therefore if this weekend, they're swimming the same number of laps at a swim meet. The person that will likely finish first is: Tess.
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. a closet contains n pairs of shoes. if 2r shoes are chosen at random (with 2r < n), what is the probability that there will be (a) no complete pair, (b) exactly one complete pair, (c) exactly two complete pairs among them?
Answer:
Step-by-step explanation:
Solve for X and Y. Show all work!!
The value of x is 13° and the value of y is 131°
Calculating anglesFrom the question, we are to determine the values of x and y
From the given diagram, we can write that
(3x + 10)° + 90° + (2x + 15)° = 180° (Sum of angles on a line segment)
Solve for x in the equation
(3x + 10)° + 90° + (2x + 15)° = 180°
3x° + 10° + 90° + 2x° + 15° = 180°
Collect like terms
3x° + 2x° = 180° - 10° - 90° - 15°
5x° = 65°
x = 65/5
x = 13°
Also
y + (3x + 10)° = 180° (Sum of angles on a line segment)
Put the value of x into the equation
y + (3(13) + 10)° = 180°
y + (39 + 10)° = 180°
y + 49° = 180°
y = 180° - 49°
y = 131°
Hence,
x = 13° and y = 131°
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Create a
number line and plot the decimal
numbers.
0. 75, 0. 279, 1. 008, 0. 44, 0. 705
In mathematical terms, Number Line is defined:
A visual representation of numbers(whole, natural, decimal, integers, fraction) using a horizontal line drawn straight with equal spacing divisions that represent each number.
Numbers are marked at equal intervals ans it is used to illustrate basic numeric operators. There is no limit to a number line, which means that it expands to positive and negative infinity. The middle of the number line is represented by zero, and on the right side are all the positive values up to the positive infinity. The same for the left side where are all the negative values are listed up to the negative infinity.
Now what is given to us in the question statement are a bunch of decimals. We know decimal numbers are considered real numbers and thus can easily be plotted on the number line. In order to plot the decimal numbers, we need to mark the intervals with decimals values.
The image attached below gives a clear representation of how the numbers will be plotted.
Values closer to 0, like 0.75, and 0.705, will be plotted more towards the right, and those away from zero, like 0.44, 0.279 will be plotted more towards the left of zero.
1.008 will be plotted after 0 and 1 on the number line (towards the right of the zero).
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twenty-three less than 4 times a number is 21. what is the number? equation and answer please!
The number is 11 and the equation is 4M - 23 = 21 where M is the number.
What is an equation?It is a mathematical statement that shows that two mathematical expressions are equal.
Example:
3x – 5 = 16
We have,
Let the number be M.
Twenty-three less than 4 times a number is 21.
Times = multiplication
less than = subtraction
We can write this as:
4M - 23 = 21
4M = 21 + 23
4M = 44
M = 44/4 = 11
Thus the number is 11 and the equation is 4M - 23 = 21 where M is the number.
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help im too slow for this.
Charlotte can obtain that which website generated more revenue by (A) revenue divided by the number of posts.
What is revenue?Revenue is the total amount generated without the expenses to run a business.
From the given data we can conclude that content is what the website posted.
∴ To obtain which website generated more revenue per amount of content we have to divide revenue by the number of posts.
Website A posted 110 contents and generated $30,000,
∴ Revenue per content is,
= (30000/110) dollars.
= 272.72 dollars.
Website B posted 200 contents and genarated $75,000 dollars.
∴ Revenue per content is,
= (75000/200) dollars.
= 375 dollars.
So, Website B generated more revenue per content.
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6x² (-5x+16) what is the answer
Answer: [tex]-30x^{3} + 96x^{2}[/tex]
Step-by-step explanation:
Answer:
-30x³ + 96x²
Step-by-step explanation:
Algebraic expressions:To simplify the algebraic expression, multiply each term of (-5x + 16) by 6x².
When we multiply 6x² * (-5x), multiply the coefficient 6 & -5 and add the powers of the variables.
6x²*(-5x + 16) = 6x² *(-5x) +6x²*16
= -30x³ + 96x²
Helena has the same number of 1$, $5, and $10 bills. The total value of these bills is $128. How many of each bill does she have
Answer: 8 bills of each.
Step-by-step explanation:
10x 8=80
5x8=40
1x8=8
=128
Write an expression that represents the maximum number of attendees at Jets, Dolphins, and Patriots home games during the season. Let j be the number of Jets home games, d be the number of Dolphins home games, and p be the number of Patriots home games.
The expression that represents the maximum number of attendees at Jets, Dolphins, and Patriots home games during the season is 82,500 j + 65,326 d + 66829 p.
We are given that:
Team Number of seats
Jets 82,500
Dolphins 65,326
Patriots 66,829
The number of attendees at the jets home games = j
The number of attendees at the Dolphins home games = d
The number of attendees at the Patriots home games = p
So, the maximum number of attendees can be written by the expression:
82,500 j + 65,326 d + 66829 p.
Therefore, we get that, the expression that represents the maximum number of attendees at Jets, Dolphins, and Patriots home games during the season is 82,500 j + 65,326 d + 66829 p.
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Your question was incomplete. Please refer the content below:
We are given the data as:
Team Number of seats
Jets 82,500
Dolphins 65,326
Patriots 66,829
Write an expression that represents the maximum number of attendees at Jets, Dolphins, and Patriots home games during the season. Let j be the number of Jets home games, d be the number of Dolphins home games, and p be the number of Patriots home games.
Solve the following by FACTORING and using the ZERO PROduct PROPERTY
3x^2-9x=30
The solution to the equation is x = -2 or x = 5
How to solve by FACTORING and using the ZERO product PROPERTY?The equation is given as
3x^2-9x=30
Rewrite properly as
3x^2 - 9x = 30
Divide through by 3
So, the equation becomes
x^2 - 3x = 10
Rewrite the equation
So, the equation becomes
x^2 - 3x - 10 = 0
Expand the equation
So, the equation becomes
x^2 + 2x - 5x - 10 = 0
Factorize the equation
So, the equation becomes
x(x + 2) - 5(x + 2) = 0
This gives
(x + 2)(x - 5) = 0
Evaluate
x = -2 or x = 5
Hence, the solution to the equation is x = -2 or x = 5
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20-5.6
Multiply 5 and 6.
Subtract 30 from 20.
Consider the compound inequality x < 4 and x > a . For what value(s) of a would the compound inequality have infinite solutions? Justify your answer.
a would the compound inequality have infinite solutions if a = 4
x < 4 AND x > a.
if a = 4 and we use an "or" instead of the "and" we have:
x < 4 or x > 4.
This is:
"x is larger than 4 or smaller than 4."
Then the solution of this is all the real numbers except the value x = 4.
The set of solutions can be written as:
{xI x ∈ R \ [4]}
Where this reads:
"x belongs to the set of the reals minus the number 4".
Or we also could write it as:
x ∈ (-∞, 4) ∪ (4, ∞)
Where we have two open ends in the "4" side, so the value x = 4 does not belong to that set.
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What is better when buying a $75 shirt?
a) A one time discount of 38%
b) A 14% discount followed by a 24% discount.
Which scenario gives the better buy?
How much will the shirt cost when given scenario (a) that gives a one time discount of 38%?
How much will the Shirt cost when giving scenario (b) that gives a discount of 14% followed by a 24% discount?
Answer: A. A one time discount of 38%.
How much will the shirt cost when given scenario (a) that gives a one time discount of 38%? : $46.50
How much will the Shirt cost when giving scenario (b) that gives a discount of 14% followed by a 24% discount? $49.02
Which expression below models this real world scenario the best? A company puts the same type of battery in each of its clocks. Machine Alpha uses 3000 batteries a day in the clocks it makes. Machine Delta uses 2500 batteries a day in the clocks it makes. If each battery costs b dollars, what is an expression the company can use to determine how much money they spend on batteries in a given day?
Question 7 options:
3000b+2500b
b+5500
500b
5000b
The expression the company can use to determine the money they spend on batteries in a given day would be 3000b + 2500b.
What is an expression?Expression in maths is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division. The Numbers constants, variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbol.
We have been given that Machine Alpha uses 3000 batteries a day in the clocks it makes and Machine Delta uses 2500 batteries a day in the clocks it makes.
Machine Alpha = 3000b
Machine Delta = 2500b
Let b dollars represents costs of each battery.
Then the expression the company that can use to determine the money they spend on batteries in a day as;
3000b + 2500b
Hence, the expression the company can use to determine the money they spend on batteries in a given day would be 3000b + 2500b.
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Find each real root. ∛0.064
Real root of ∛0.064 is 0.02133.
By considering the given expression
∛0.064
=(0.064)^1/3
= (0.021)^1/3
= 0.02133
If a mathematical equation has real roots, then its solutions or roots are real numbers. If an equation has distinct roots, we contend that all of its solutions or roots are not equal. A quadratic equation has real and distinct roots if the discriminant is greater than 0.
If there are no stationary points on the curve, then f has a single real root. If stationary points are found, you could demonstrate using the geometry of the curve that the curve can only intersect the x axis once due to the configuration of the stationary points.
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HELP HELP!! There are 27 cats and dogs at an animal shelter. The ratio of cats to dogs is 4:5. Write the ratio of the number of dogs to the total number of cats and dogs at an animal shelter . Dogs: total _______
Answer:
[tex]\frac{\text{dogs}}{\text{total}} = \frac59[/tex]
Step-by-step explanation:
We can say that the amount of cats is [tex]4x[/tex] and the amount of dogs is [tex]5x[/tex], as we know that [tex]\frac{\text{cats}}{\text{dogs}} = \frac45[/tex]
Therefore, the total amount of animals (cats and dogs) is [tex]9x[/tex].
[tex]\frac{\text{dogs}}{\text{total}} = \frac{5x}{9x} = \frac59[/tex]
Write an equation of a line that is (a) parallel to the given line and (b) perpendicular to the given line. Where the given line is x= -4 ;
I got An equation of a line parallel to the x axis is y=-4x+3, and An equation of a line perpendicular to the x axis is x=4 is this right? If not what would be a better answer?
Answer:
(a) x = 10
(b) y = 4
Step-by-step explanation:
For a line of the form y = mx + b, the slope is m, b is the y-intercept
A parallel line will have the same slope and a different y intercept
A perpendicular line has a slope = -1/m
But x = -4 is a line parallel to the y axis intercepting the x-axis at -4. So slope = ∞
Therefore here are equations for a parallel line and a perpendicular line
A parallel line will have the form x = k where k is a constant(positive or negative). So x = 10 is a line parallel to x = -4
A perpendicular line will be of the form y = 4 or y = -10 or whatever, i.e. without the x component. Such a line will be parallel to the x-axis so both lines are perpendicular
Regarding your questions
y = 4x + 3 has a slope of 4 and a y intersect of 3 so it will be a sloping line
x = 4 will be parallel, not perpendicular to x = -4
I have provided a graph which makes this explanation clearer. The dotted line is x = 4 and you can see it is parallel to x = -4
What could be the value of x in the following equation? Select all that apply. x2=49
Answer:
24.5
Step-by-step explanation:
24.5*2 is 49
(2x^(4)y^(-3))
please solve
Answer:
Step-by-step explanation:
(2x^(4)y^(-3))
= 2x^4/ y^3.