Coordinates after 270 clockwise rotation is (-6,-2), (-3,-5) and (-8, -5).
What is graph?Graph is a mathematical representation of a network and it describes the relationship between lines and points.
Given coordinates are: (-2,6) , (-5, 3) and (-5, 8)
For 270° clockwise about the origin, we have the following rule:
(x, y)= (-y, x)
So,
coordinates (-2,6) change into (-6,-2)
coordinates (-5, 3) change into (-3,-5)
coordinates (-5, 8) change into (-8, -5).
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A rectangular piece of paper with length 32 cm and width 14 cm has two semicircles cut out of it, as shown below.
Find the area of the paper that remains. Use the value 3.14 for , and do not round your answer. Be sure to include the correct unit in your answer
Answer:
Step-by-step explanation:
Question 4 of 10
What is the result of converting 20 ounces into pounds? Remember that 1
pound = 16 ounces.
Answer:
1 and 1/4 pounds
Step-by-step explanation:
please help please help please help please help please help please help please help please help please help please help please help please help please help please help
3. The table shows the production results for three factories. How many cars are manufactured at the fastest factory in one year?
A. 12,000
B. 13,500
C. 16,200
D. 22,000
A function k whose domain is the set of positive integers is defined as k(1) = 4 and k(n) =
k(n - 1) - 2
Function k was evaluated for several numbers. Which of the following are true?
Select each correct answer.
k(2)=
k(1)-24-22Option C is true
k(3)
k(2)-22-20D is true
k(4)
k(3)-2=0-2=-2k(5)
-2-2-4k(6)
-4-2-6E is not true
k(1)
k(0)-2So
k(0)-2=4k(0)=6B is false
Similarly
k(-1)-2=k(0)=6k(-1)=8-1 is not in domain even though
A is false
Only C and D are trueAnswer:
[tex]k(2) = 2[/tex]
[tex]k(3) = 0[/tex]
Step-by-step explanation:
Given:
[tex]\begin{cases}k(1)=4\\k(n)=k(n-1)-2\end{cases}[/tex]
The function [tex]k(n)[/tex] tells us that each term is 2 less than the preceding term.
Therefore:
[tex]\implies k(1)=4[/tex]
[tex]\implies k(2)=k(1)-2=4-2=2[/tex]
[tex]\implies k(3)=k(2)-2=2-2=0[/tex]
[tex]\implies k(4)=k(3)-2=0-2=-2[/tex]
[tex]\implies k(5)=k(4)-2=-2-2=-4[/tex]
[tex]\implies k(6)=k(5)-2=-4-2=-6[/tex]
Rearranging the formula to make the preceding term the subject:
[tex]\begin{aligned} k(n) & = k(n-1) - 2\\\implies k(n)+2 & = k(n-1)\\k(n-1) & =k(n)+2\end{aligned}[/tex]
Therefore:
[tex]\implies k(1)=4[/tex]
[tex]\implies k(0)=k(1)+2=4+2=6[/tex]
[tex]\implies k(-1)=k(0)+2=6+2=8[/tex]
Conclusion
Therefore, the correct answers from the answer options are:
[tex]k(2) = 2[/tex] and [tex]k(3) = 0[/tex]
Can somebody help me solve this inequality it’s kinda hard for me to solve
Answer:
54 chickens
Step-by-step explanation:
This problem requires you find the area of Thomas's field, then use that area to find the number of chickens he can keep. The irregularly-shaped field can be considered as composed of shapes that you know how to find the area of.
__
field areaThere are many ways the area can be divided. One of them is shown in the attachment. That shows the area to be the sum of the areas of a triangle and a trapezoid.
The triangle has a base of 20 m and a height of 7 m, so an area of ...
A = 1/2bh
A = 1/2(20 m)(7 m) = 70 m²
The trapezoid has bases of 11 m and 18 m, and a height of 14 m. Its area is ...
A = 1/2(b1 +b2)h
A = 1/2(11 m +18 m)(14 m) = 1/2(29 m)(14 m) = 203 m²
The area of the field is the sum of these areas:
field area = triangle area + trapezoid area
field area = 70 m² +203 m² = 273 m²
__
chickensEach chicken requires an area of 5 m², so the total area for n chickens is ...
area for n chickens = 5n . . . . square meters
This area cannot exceed the area of the field, so an inequality can be written:
area for n chickens ≤ field area
5n ≤ 273
n ≤ 54.6 . . . . . . divide by 5
Thomas can keep a maximum of 54 chickens in the field.
The ratio of ann's age to bob's age is 3:4
in 7 years time this ratio will be 4:5
0) what are their ages now?
(1) after how many years (from now)
will the ratio be 5:6?
Ann and Bob's age is 21 years and 28 years respectively and after 14 years the ratio will be 5:6.
What is Ratio ?
The comparison of one quantity to other is called a ratio and when two ratios are equal they are said to be in proportion.
It is given in the question that
The ratio of Ann's age to bob's age is 3:4
in 7 years time this ratio will be 4:5
their ages now = ?
Let the age of Ann and Bob is x and y
x:y = 3:4
x =(3/4)y
After seven years
(x+7):(y+7) = 4 :5
(x+7)/(y+7) = 4/5
((3/4)y +7)/(y+7) = 4/5
(3y +28)/(y+7) = 16/5
5*(3y+28)= 16(y+7)
15y +140 = 16y+112
y = 140-112
y =28 years
x = 21 years.
After x years suppose the ratio is 5 :6
(21+x)/(28+x) = 5:6
126 +6x = 140 + 5x
x = 14 years.
Therefore after 14 years the ratio will be 5:6.
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The degree of the polynomial 10x² + 2xy-4y is 3. What is the value of m?
A.1
B.2
C.3
D. 4
If the degree of the polynomial is 3. Then the value of m will be 2. Then the correct option is B.
The complete question is attached below.
What is the degree of the polynomial?Let the polynomial is given below.
axⁿ + bxⁿ⁻¹ + .... + kx¹ + lx⁰
Then the highest power of the polynomial is known as the degree of the polynomial.
The polynomial is given as
[tex]\rm 10x^2 + 2x^my-4y[/tex]
The degree of the polynomial is 3. Then the value of m will be
m + 1 = 3
m = 2
Then the correct option is B.
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What is the area of the triangle below?
On a coordinate plane, a triangle has a base of 6 units and a height of 9 units.
27 square units
45 square units
54 square units
90 square units
Answer:
27 units
Step-by-step explanation:
6 (base) × 9 (height) = 54
54 × 1/2 = 27
how many pattern block trapezoids would create 4 hexagons?
Answer:
8
Step-by-step explanation:
2 pattern block trapezoids makes one hexagon
There are 4 hexagons so you have to multiply 2 by 4
you get 8
8 is your answer
A neutron star has a density of about kg/m3. what would be the approximate mass of a 1-centimeter cube (a cube 1 cm on all sides)? kg (1.3 quadrillion pounds) kg (1.3 trillion pounds) kg (1300 trillion pounds) kg (1.3 billion pounds)
Answer:
Step-by-step explanation:
5.9 1014 kg (1300 trillion pounds)
5.9 108 kg (1.3 billion pounds)
5.9 1017 kg (1.3 quadrillion pounds)
5.9 1011 kg (1.3 trillion pounds)
those are the options
Please how to answer.
Answer:
Blue Rectangle: 135 mm²
Blue Triangle: 45 mm²
Not sure if you need this but the Total Square: 225 mm²
Step-by-step explanation:
Area of a rectangle: length x width
Area of a triangle: [tex]\frac{1}{2}[/tex] x base x height
First find the area of the blue rectangle.
Length = 15 mm
Width = 9 mm
Area = 135 mm²
Now find the area of the blue triangle:
Base = 6 mm (because the bottom is 15 total and you subtract the 9)
Height = 15 mm
Area = 45 mm²
Hope it helps!
which of thse numbers 516090,221640,814550 are divisible byy 4
Find the x-intercept and y-intercept of the equation: 3x-y = -9
The x-intercept and y-intercept of the equation: 3x - y = -9 is -3 and 9 respectively.
What is a straight line?A straight line is a combination of endless points joined on both sides of the point.
The slope 'm' of any straight line is given by:
[tex]\rm m =\dfrac{y_2-y_1}{x_2-x_1}[/tex]
We have equation:
3x - y = -9
The above equation represents a linear equation;
The equation can be written as:
y = 3x + 9
To find the x-intercept plug y = 0
x = -3
To find the y-intercept plug x = 0
y = 9
Thus, the x-intercept and y-intercept of the equation: 3x - y = -9 is -3 and 9 respectively.
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the lines y= 2x+4 and y=x-3 intersect. find the coordinates of the point of intersection
Answer:
(-7, -10)
Step-by-step explanation:
Solve for x and y in double variable equation
y = 2x + 4
y = x - 3
y = x - 3, plug in to first equation
x - 3 = 2x + 4
x = -7
y = -7 - 3
y = -10
(-7, -10)
It is the middle of the heatwave, and you AC unit has broken. You have 2 companies that come highly qualified. Company A charges $200 to come out plus $50 per hour to look at your AC and determine what is wrong. Company B charges $125 plus $75 an hour for the same exact service.
After how many hours (x) will both companies charge you the same amount(y)?
By solving a linear equation, we will see that after 3 hours, both companies will charge the same amount.
After how many hours will both companies charge you the same amount?
We know that company A charges $200 plus $50 per hour. So if they work for x hours, they charge:
A(x) = $200 + $50*x
And company B charges $125 plus $75 per hour, so if they work for x hours, they charge:
B(x) = $125 + $75*x
We want to find the value of x such that A(x) = B(x), then we want to solve the linear equation:
$200 + $50*x = $125 + $75*x
$200 - $125 = $75*x - $50*x
$75 = $25*x
$75/$25 = x = 3
This means that after 3 hours, both companies will charge the same amount.
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Find the value of y in the solution to the system of equations shown.
y = 4x - 28
y = 1.5x - 18
Answer: y = -12
Equation's:
y = 4x - 28y = 1.5x - 18Solve them simultaneously:
4x - 28 = 1.5x - 18
4x - 1.5x = -18 + 28
2.5x = 10
x = 10/2.5 = 4
Now find the value of y:
y = 4x - 28
insert x = 4
y = 4(4) - 28
y = 16 - 28 = -12
Answer:
[tex]y=-12[/tex]
Step-by-step explanation:
Given system of equations:
[tex]\begin{cases}y = 4x - 28\\y = 1.5x - 18\end{cases}[/tex]
Use the method of substitution to solve for x:
[tex]\begin{aligned}y & = y\\\implies 4x-28 & = 1.5x - 18\\4x-1.5x & = -18+28\\2.5x & = 10\\x & = 10 \div 2.5\\x & = 4\end{aligned}[/tex]
Substitute the found value of x into one of the equations and solve for y:
[tex]\begin{aligned} y & = 4x-28\\\implies y & =4(4)-28\\y & = 16-28\\y & = -12\end{aligned}[/tex]
Graph the inequality y ≤-3x - 3.
Answer: [tex]y\leq -3x-3[/tex] [tex]< --Graph[/tex]
In order to graph the equation "y ≤-3x - 3", we need to graph the inequality by finding the boundary line, then shading the appropriate area.
Need the anwser asap
Answer:
The third option.
Step-by-step explanation:
It is the third option because it is subtracting by 2 each time.
Hope this helps!
If not, I am sorry.
Answer:
388848y2
Step-by-step explanation:
yup yup
Using the graph, determine the coordinates of the y-intercept of the parabola.
Answer:
(0, -5)
Step-by-step explanation:
the y-intercept of the parabola is when x = 0 (crossing the y axis)
Help me please
calculate the value of x in the polygon
Answer:
122.5 degrees
Step-by-step explanation:
A six sided polygon's interior angles sum to
(n-2)(180) = (6-2) (180) = 720 degrees
then x + x + x + x+10 + 130 + 90 = 720
4x = 490 so x = 122.5 degrees
A circle is divided into 9 equal parts what is the angle measure of one of those parts?
Answer: 40°
40 * 9 =360° Each part has 40° angle
Determine, which is the shorter path from A to B is: Around the two small semi circles or around the large semi-circle? Verify your answer by calculating the length of the path in each case.
The casino game, roulette, allows the gambler to bet on the probability of a ball, which spins in the roulette wheel, landing on a particular color, number, or range of numbers. the table used to place bets contains 38 numbers, and each number is assigned to a color and a range. what is the probability of winning when betting on two lines that touch each other on the table as in 1-2-3-4-5-6?
The probability of winning when betting on two lines that touch each other on the table is 6/38
How to determine the probability?The sample size is given as:
n = 38
The numbers on the range 1-2-3-4-5-6 is:
Range = 6
So, the probability is calculated as:
P = Range/n
This gives
P = 6/38
Hence, the probability of winning is 6/38
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Which is the graph of a logarithmic function?
5
4
3-
2
1
-2-1₁
1 2 3 4 5 6 7 8 x
-2
-3
-4
fin
5
For this exercise, the graph of a logarithmic function is shown in the image attached below.
What is a logarithmic function?A logarithmic function is a type of function that graphically represents the inverse of an exponential function. Mathematically, a standard logarithmic function is written as [tex]y = log_nx[/tex].
In Mathematics, the domain of any logarithmic function is from (x > 0) to infinity (+∞). Thus, its graph moves to the right on the vertical axis and it increases to infinity (+∞) as the value of x increases.
In this scenario, an image of all the graphs wasn't provided, so, I would proceed to add an attachment to illustrate the graph of a logarithmic function.
Note: The graph (u-shaped) shown in the image attached above is that of a parabolic function.
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what is the slope of 2/7x +5y=15
Answer:
-2/35
Step-by-step explanation:
Slope y-intercept form : y = mx + b
Here m is the slope and b is the y-intercept
Write the given equation in slope y-intercept form.
[tex]\sf \dfrac{2}{7}x + 5y = 15\\\\[/tex]
[tex]\sf 5y = \dfrac{-2}{7}x + 15\\\\ y =\dfrac{-2}{7*5}x + \dfrac{15}{5}\\\\ y = \dfrac{-2}{35}x + 3\\\\ \boxed{\bf Slope = \dfrac{-2}{35}}[/tex]
Select the correct answer.
Simplify the expression.
1³/32r5y3
214/2ry³ 3
2x4 √4xy³
2rty 4ry³
413/21²y3
The simplification of the indices can be seen in the explanation below.
[tex]\mathbf{= \dfrac{1^3}{32r^5y^3}}[/tex]
What is the simplification of indices?The simplification of indices entails simplifying the indices to the simplest form possible by using the laws of indices.
From the information given, we have:
1.
[tex]\mathbf{= \dfrac{1^3}{32r^5y^3}}[/tex]
2.
[tex]\mathbf{= \dfrac{214}{2ry^3}}\\[/tex]
[tex]\mathbf{=\dfrac{ 107}{ry^3}}[/tex]
3.
= 2×4 √4xy³
= 8 √4xy³
= 8 × 2√xy³
= 16√xy³
4.
= 2rty 4ry³
= 2tr²y⁴
5
= 413/21²y³
= 413/441 y³
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Answer:
1.
2.
3.
= 2×4 √4xy³
= 8 √4xy³
= 8 × 2√xy³
= 16√xy³
4.
= 2rty 4ry³
= 2tr²y⁴
5
= 413/21²y³
= 413/441 y³
Step-by-step explanation:
A metronome is a device that ticks at adjustable intervals to help keep time when playing music. the metronome on ryan’s piano has the basic shape below. a square pyramid. the base is 9 centimeters by 9 centimeters. the triangular sides have a base of 9 centimeters and height of 20.5 centimeters. the pyramid has a height of 20 centimeters. if the metronome was created out of a piece of solid wood, what is the minimum amount of solid wood that was used? 369 centimeters cubed 450 centimeters cubed 540 centimeters cubed 810 centimeters cubed
When the metronome was created out of a piece of solid wood, the minimum amount of solid wood that was used from the pyramid will be C. 540 centimeters cubed.
How to calculate the pyramid?From the information given, the metronome ticks at adjustable intervals to help keep time when playing music.
In rhis case, when the metronome was created out of a piece of solid wood, the minimum amount of solid wood that was used from the pyramid will be:
= 20 × 9 × ✓9
= 20 × 9 × 3
= 540
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Answer:
540
Step-by-step explanation:
C
Adam riese developed the signs + and - as mathematical operations what is the title of the work that introduced them?
The title of the work introduced is Rechnung nach der lenge/auff den Linien und Feder.
What are mathematical operations?In mathematics, an operation is a function that takes zero or more input values to a well-defined output value.
Adam Riese developed the signs + and - as mathematical operations and the title of the work introduced is Rechnung nach der lenge/auff den Linien und Feder.
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use the information given to answer the question. write your answer as a decimal rounded to the nearest tenth
Answer: The value of x is 3.5
Explanation:
Equation:
y = 2x - 7
When the equation's Line intersects the x-axis, the value of y shall be always 0
Insert y = 0, to find x intercept
⇒ 0 = 2x - 7
⇒ 2x - 7 = 0
⇒ 2x = 7
⇒ x = 3.5
So coordinates: (x, y) → (3.5, 0)