The function is f(x) = -2x² + 2 if the function f(x) passes through the following points:(0,2), (1, 0), (-1,0)
What is a function?It is defined as a special type of relationship, and they have a predefined domain and range according to the function every value in the domain is related to exactly one value in the range.
The question is incomplete.
The complete question is in the picture, please refer to the attached picture.
We have:
The graph of a function f(x) passes through the following points: (0,2), (1, 0), (-1,0)
Let
f(x) = ax² + bx + c
Plug x = 0, and y = 2
c = 2 ...(1)
Plug x = 1 and y = 0
a + b + c = 0 ..(2)
Plug x = -1 and y = 0
a - b + c = 0 ...(3)
After solving (1), (2), and (3)
a = -2
b = 0
c = 2
f(x) = -2x² + 2
Thus, the function is f(x) = -2x² + 2 if the function f(x) passes through the following points:(0,2), (1, 0), (-1,0)
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Imagine you want to create a model of Solar system (and beyond) with the Sun
represented by a beach ball of diameter 60 cm = 0.60 m. (i.e. of radius 30 cm = 0.30
m). On that same scale:
What is the diameter of the Milky Way?
And the diameter or Radius of Earth
The diameter of the milky way is given as 4.3 x 10¹¹m while the diameter of the radius of the earth is 0.00276
How to solve for the diameter of the milky wayThe transformed system is given as 23.18 x 10⁸ in real length
Hence the diameter is
10 x 10²⁰ / 23.18 x 10⁸
= 4.3 x 10¹¹ m
How to solve for the diameter of the radius of the earthDistance from the sun to the earth = 1.496 x 10¹¹m
Transformed system = 1.496 x 10¹¹m/23.18 x 10⁸
= 64.5 m
Actual radius = 6.4 x10⁶ / 23.18 x 10⁸
= 0.00276
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A line of a slope 1/4 and passes through the point (0.2,4/5)
Find the value of b, the y-intercept.
The y-intercept of the line is 0.75 or 3/4
How to determine the y-intercept?The given parameters are:
Slope, m = 1/4
Point (x, y) = (0.2, 4/5)
A linear equation is represented as:
y = mx + b
This gives
4/5 = 1/4 * 0.2 + b
Evaluate the product
4/5 = 0.05 + b
Subtract 0.05 from both sides
b = 0.75
Hence, the y-intercept of the line is 0.75 or 3/4
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Explain the different ways you can name an angle how can you determine if two triangles are similar
Answer:
angle angle theorem.
Step-by-step explanation:
If you want to determine whether a few angles are similar you can use formulas such as SAS AAA ASA etc.
this means
side angle side
angle angle anlge
angle side angle
need help finding this C measure
Answer:
<C = 45 degrees.
Step-by-step explanation:
This is a right triangle (indicated by the square representing <A). All angles in a triangle add up to 180 degrees
180 - 90 is 90. Knowing that there are only two angles left, you can divide 90 by 2, resulting in 45.
<C = 45.
Compare the graphs f(x)=(x-10)^2+8 with the graph of f(x)=x^2
Yea
Answer:
b. The graph of g(x) is a translation 10 units right and 8 units up from the graph of f(x).
Step-by-step explanation:
See attached image.
please help i dont get it
Answer:
78.5
Step-by-step explanation:
pi(r^2)
3.14(5^2)
3.14(25)
78.5
pls kindly see the attached picture for the answer and explanation thank you
Triangle MRN is created when an equilateral triangle is folded in half.
Triangle N R M is shown. Angle N R M is a right angle. An altitude is drawn from point R to point S on side M N to form a right angle. The length of N S is 6, the length of S M is 2, the length of R M is x, the length of N R is y, and the length of R S is z.
What is the value of y?
2 StartRoot 3 EndRoot units
4 units
4 StartRoot 3 EndRoot units
8 units
Answer:
4 units
Step-by-step explanation:
You have a total of 16 coins, all quarters and dimes. The total value is $3.10. Which
of the following is the system of linear equations that represent this scenario? Let q =
the number of quarters and let d = the number dimes.
The system of linear equations that represents this scenario is: q + d = 16
0.25q + 0.10d = 3.10
To represent the scenario described, we can set up a system of linear equations using the given variables:
Let q represent the number of quarters.
Let d represent the number of dimes.
We are given two conditions:
1) The total number of coins is 16:
q + d = 16
2) The total value of the coins is $3.10:
0.25q + 0.10d = 3.10
Therefore, the system of linear equations that represents this scenario is:
q + d = 16
0.25q + 0.10d = 3.10
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Help please!!!
Determine the domain and range of each function.
31.
32.
How many sides has a regular polygon if it's interior angles are:144 each, 135 each
The measure of each interior angle of a regular polygon is [tex]\frac{180(n-2)}{n}[/tex] degrees, where n is the number of sides.
Question 1
[tex]144=\frac{180(n-2)}{n}\\\\144n=180(n-2)\\\\144n=180n-360\\\\-36n=-360\\\\n=10 \text{ sides}[/tex]
Question 2
[tex]\frac{180(n-2)}{n}=135\\\\180(n-2)=135n\\\\180n-360=135n\\\\-360=-45n\\\\n=8 \text{ sides}[/tex]
What is the probability of obtaining in a row when flipping a coin?.
There are 50-50 chances that you will get a head or a tail
a + c = 405
12a + 5c = $3,590
Answer:
a=223.57
c=181.43
Step-by-step explanation:
a=405-c
substitute for a in the equation :
12a+5c=3590
12(405-c)+5c=3590
4860-12c+5c=3590
-7c=3590-4860
-7c=-1270
c=1270/7=181.43
a=405-1270/7
a=1565/7=223.57
Simplify the following expression.
Answer:
-70x, 26y^3, -3z
Step-by-step explanation:
The way to solve this is by combining like terms. The terms we have given to us include x, y^3, and z. As a result, we will group terms based on these variables.
1. Find all the terms with each variable.
* -35x, -35x
* 23y^3, 3y^3
* -3z
2. Combine like terms.
* -35x + (-35x) = -35x - 35x = -70x
* 23y^3 + 3y^3 = 26y^3
* -3z + 0 = -3z
Answer:
Hello! The answer is: [tex]-70x - 3z + 26y^3[/tex]
Step-by-step explanation:
First, rearrange to combine like terms:
[tex]-35x - 35x - 3z + 23y^3 + 3y^3[/tex]
Now, combine like terms:
[tex]-70x - 3z + 26y^3[/tex]
The roots of the quadratic function describing the relationship between number of products produced and overall profit margin are x=0 and 28. The vertex is a minimum at (14,−40).
the quadratic equation is:
y = 0.2*x*(x - 28)
How to find the quadratic equation?
If we know that the roots are J and K, and the leading coefficient is a, then the quadratic equation is:
y = a*(x - K)*(x - J)
Here we know that the roots are at x = 0 and x =28, then:
y = a*(x - 0)*(x - 28).
We also know that the vertex is a minimum, so a is positive, and we know that the vertex is (14, -40), then we have:
-40 = a*(14)*(14 - 24) = -a*196
a = 40/196 = 0.20
Then the quadratic equation is:
y = 0.2*x*(x - 28)
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A diagonal of a cube measures StartRoot 294 EndRoot cm. The diagonal of a face measures 14 cm. What is the length of an edge of the cube? Round to the nearest tenth of a centimeter.
The side of the edge of the cube is 9. 9cm
How to determine the length
Given that the diagonal of a cube measures the square root of 294cm and the diagonal of a face measures 14cm
To find the edge of the face, we know that the face of the cube is a square
Formula for diagonal of a square = [tex]\sqrt{2a}[/tex]
Where is the side of the square
We then have,
[tex]\sqrt{2a} = 14[/tex]
Make 'a' the subject
a = [tex]\frac{14}{\sqrt{2} }[/tex]
Simplify the surd
a = [tex]\frac{14}{\sqrt{2} }[/tex] × [tex]\frac{14}{\sqrt{2} }[/tex]
a = [tex]\frac{14\sqrt{2} }{2}[/tex]
a = [tex]7\sqrt{2}[/tex]
a = 9. 9cm
Therefore, the side of the edge of the cube is 9. 9cm
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Answer: Its 9.8 cm
Step-by-step explanation: I said so
Which relationship has a zero slope?
X
-3
-1
1
3
O
y
2222
2
X
-3
-1
1
3
O
y
3
1
-1
-3
+
Answer:
The table that has the y-value as 2 for each input
Step-by-step explanation:
The table that has the y-value as 2 for each input. This is because as x increases by 1, the y-value is increasing by 0, so the slope is 0/1 or 0. The vertical line doesn't have a zero slope, since it's undefined, because if you take any two points the "run" is 0, thus you would be dividing by 0, the slope cannot be defined.
this hyperbola is centered at the origin find its equation
foci: (-2,0) and (2,0)
vertices: (-1,0) and (1,0)
The equation of the hyperbola with foci (-2, 0), (2, 0), and vertices, (-1, 0), (1, 0) is [tex] \underline{\frac{ {x}^{2} }{ {1}^{2} } - \frac{ {y}^{2} }{ 3} } = 1[/tex]
Which method is used to find the equation of the parabola?The general form of the equation of an hyperbola is presented as follows;
[tex] \frac{ {x}^{2} }{ {a}^{2} } - \frac{ {y}^{2} }{ {b}^{2} } = 1[/tex]
Where a is obtained from the vertex written as (-a, 0), (a, 0)
The given vertex are (-1, 0), (1, 0), which gives;
a = 1
The general form of the foci of a hyperbola are; (-c, 0), (c, 0)
The given foci of the hyperbola are; (-2, 0), (2, 0)
Where;
c² = a² + b²Therefore;
b² = c² - a²By comparison, we have;
c² = 2²
Which gives;
b² = 2² - 1² = 3The equation of the hyperbola is therefore;
[tex] \underline{\frac{ {x}^{2} }{ {1}^{2} } - \frac{ {y}^{2} }{ 3} } = 1[/tex]
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If the dimensions of the prism below were doubled, by what factor would the of the prism increase?
Answer:
probably c
Step-by-step explanation:
WILL GIVE BRAINLIEST! PLEASE HELP FAST!!
A) The function ƒ(x) has a steeper slope than g(x).
B) The functions ƒ(x) and g(x) have the same slope.
C) The function g(x) has a steeper slope than ƒ(x).
D) There isn't enough information to determine which function has a steeper slope.
[tex]m = \frac{ - 5 - 4}{3 - 0} = \frac{ - 9}{3} = - 3[/tex]
[tex]g(x) = - 3x + 4[/tex]
C)[tex]g(x) \: ha s \: a \: steeper \: slope[/tex]
Dan's Dependable Delivery Given the following information calculate Dan’s Dependable Delivery’s debt ratio for two consecutive years. Show your calculations using Excel formulas. After the calculations, write a short message to Dan explaining what the ratios mean. Is there improvement? Current year Last year Total Assets $3,750,250 $3,590,750 Total liabilities $1,500,250 $1,470,000 Debt Ratio for the current year Debt Ratio for last year Message to Dan below:
Current year's debt ratio is 2.50
Last year's debt ratio is 2.44
Compute Dan's Dependable Delivery debt ratio for two consecutive years?
The debt ratio is the total liabilities divided by the total assets
The debt ratio for the current year = 2.50
The debt ratio for last year =2.44(find attached excel file and formula sheet)
Debt ratio means the portion of the firm's total assets funded using borrowing(external funding), the lower the ratio, the better since having a higher debt means a higher interest would be paid, the higher the debt, the higher the chance of the firm defaulting on paying interest and repaying the principal borrowed.
The fact that the debt ratio has increased in the current year, means that the ratio has worsened because more debt has been taken.
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Verify csc^2t-cos t sect= cot^2 t
Rewriting the left hand side,
csc²t - cost sec t
= (1/sin²t)-(cost)(1/cost)
= 1/sin²t - 1
= 1/sin²t - sin²t/sin²t
= (1-sin²t)/sin²t
= cos²t/sin²t
= cot²t
5 Quick algebra 1 questions for 50 points!
Only answer if you know all 5, Tysm! :)
The equations of the perpendicular lines are: y = 1/2x + 6, y = 15, y = -x - 2, y = 6x + 3 and y = 1/3x - 4
How to determine the equations?When a linear equation is represented as:
Ax + By = C
The slope (m) is:
m = -A/B
When the linear equation is represented as:
y = mx + c
The slope is m
A line perpendicular to a linear equation that has a slope of m would have a slope of -1/m
Using the above highlights, the equations of the lines are:
6. y = -2x + 5; (2, 7)
The slope is:
m = -2
The perpendicular slope is:
n = 1/2
The equation of the perpendicular line is:
y = n(x - x1) + y1
This gives
y = 1/2(x - 2) + 7
Evaluate
y = 1/2x - 1 + 7
This gives
y = 1/2x + 6
7. y = -5; (11, 15)
The slope is:
m = 0
The perpendicular slope is:
n = 1/0 = undefined
The equation of the perpendicular line is:
y = n(x - x1) + y1
This gives
y = 15
8. Graph ; (-12, 10)
The slope is:
m = (y2 - y1)/(x2 - x1)
Using the points on the graph, we have:
m = (2 - 3)/(3 - 4)
m = 1
The perpendicular slope is:
n = -1
The equation of the perpendicular line is:
y = n(x - x1) + y1
This gives
y = -1(x + 12) + 10
y = -x - 12 + 10
Evaluate
y = -x - 2
9. y = -1/6x + 1; (-2, -9)
The slope is:
m = -1/6
The perpendicular slope is:
n = 6
The equation of the perpendicular line is:
y = n(x - x1) + y1
This gives
y = 6(x + 2) - 9
Evaluate
y = 6x + 12 - 9
This gives
y = 6x + 3
10. 6x + 2y = 14; (12, 0)
The slope is:
m = -6/2
m = -3
The perpendicular slope is:
n = 1/3
The equation of the perpendicular line is:
y = n(x - x1) + y1
This gives
y = 1/3(x - 12) + 0
Evaluate
y = 1/3x - 4
Hence, the equations of the perpendicular lines are: y = 1/2x + 6, y = 15, y = -x - 2, y = 6x + 3 and y = 1/3x - 4
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State the type of model that best fits the data shown and write the regression
equation. Round any decimals to 3 places.
The regression equation is y = 3.231x + 10.138
How to determine the regression equation?The regression model that fits the data is a linear model.
This is so because as x increases by 1, the y value increases by an almost constant rate
To determine the regression equation, we make use of a graphing calculator
From the graphing calculator, we have the following summary:
Sum of X = 15Sum of Y = 109.3Mean X = 2.5Mean Y = 18.2167Sum of squares (SSX) = 17.5Sum of products (SP) = 56.55The regression equation is then calculated as;
y = bx + a
Where
b = SP/SSX = 56.55/17.5 = 3.23143
a = MY - bMX = 18.22 - (3.23*2.5) = 10.1381
So, we have:
y = 3.23143x + 10.1381
Approximate
y = 3.231x + 10.138
Hence, the regression equation is y = 3.231x + 10.138
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There were three parts to Rita's race. She ran the first part, which was 4/9
of the total distance, in 20 minutes. She ran the second part, which was 2/5
of the remaining distance, in 12 minutes. She finally ran the third part in 15 minutes at a speed of 300 meter per minute.
How long was the second part of the race? What was Rita's speed in that section of the race?
Hello!
d₁ = distance covered in Part 1
d₂ = distance covered in Part 2
d₃ = distance covered in Part 3
Distance in Part 2 :
⇒ d₃ = 15 x 300 = 4500 m
⇒ d₂ = 2/5d₃
⇒ d₂ = 2/5 x 4500
⇒ d₂ = 1800 meters
Speed in Part 2 :
⇒ v₂ = 1800 m / 12 min
⇒ v₂ = 150 meters per minute
In this figure, AB || CD & m<6 =75 degrees
What is m<3?
Answer:
∠ 3 = 105°
Step-by-step explanation:
∠ 3 and ∠ 6 are same- side interior angles and sum to 180° , that is
∠ 3 + ∠ 6 = 180°
∠ 3 + 75° = 180° ( subtract 75° from both sides )
∠ 3 = 105°
Work out 2 1 2 − 1 2 7 Give your answer as a mixed number where appropriate.
Answer:
185 when we subtract 212-127 it gives 185 thanks for the seeing image
A princess has two pet dragons. The dragons can eat 300kg of chocolate in 12 days. How many days will the same 300kg last if got 4 more dragons for her birthday?
The chocolate will last for 1 day, if she gets 4 more dragons
How to determine the number of days?The expression can be represented using the following ratio:
Ratio = Dragons : Days : Chocolate
For the 2 dragons she has, we have:
Ratio = 2 : 12 : 300
When she gets 4 more dragons, we have:
Ratio = 6 : days : 300
Equate both ratios
6 : days = 12 : 2
Express as fraction
days/6 = 2/12
Multiply both sides by 6
days = 6 * 2/12
Evaluate
days = 1
Hence, the chocolate will last for 1 day
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In music theory, a musical chord is named according to its roots, or its first root. by knowing the root of a chord, a musician can find the rest of the notes in a chord. how are the roots of chords similar to roots of polynomial functions?
The roots of a polynomial function tells us about the position of the equation on a graph and the roots also tells us about the complex and imaginary roots. So, Roots of chords are similar to the roots of polynomial functions.
A real root of a polynomial function is the point where the graph crosses the x-axis (also known as a zero or solution). For example, the root of y=x^2 is at x=0.
Roots can also be complex in the form a + bi (where a and b are real numbers and i is the square root of -1) and not cross the x-axis. Imaginary roots of a quadratic function can be found using the quadratic formula.
A root can tell you multiply things about a graph. For example, if a root is (3,0), then the graph crosses the x-axis at x=3. The complex conjugate root theorem states that if there is one complex root a + bi, then a - bi is also a complex root of the polynomial. So if you are given a quadratic function (must have 2 roots), and one of them is given as complex, then you know the other is also complex and therefore the graph does not cross the x-axis.
So, The roots of a polynomial function tells us about the position of the equation on a graph and the roots also tells us about the complex and imaginary roots. So, Roots of chords are similar to the roots of polynomial functions.
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For the following exercises, find the average rate of change of the functions from x = 1 to x =2.
24. f(x) = 4x − 3
Answer:
For the function [tex]$f(x)=4 x-3$[/tex] the average rate change from x is equal 1 to x is equal 2 is 4 .
Step-by-step explanation:
A function is given f(x)=4x-3.
It is required to find the average rate change of the function from x is 1 to x is 2 . simplify.
Step 1 of 2
A function f(x)=4 x-3 is given.
Determine the function [tex]$f\left(x_{1}\right)$[/tex] by putting the value of x=1 in the given function.
[tex]$$\begin{aligned}&f(1)=4(1)-3 \\&f(1)=1\end{aligned}$$$$f(1)=1$$[/tex]
Determine the function [tex]$f\left(x_{1}\right)$[/tex] by putting the value of x is 2 in the given function.
[tex]$$\begin{aligned}&f(2)=4(2)-3 \\&f(2)=5\end{aligned}$$[/tex]
Step 2 of 2
According to the formula of average rate change of the equation [tex]$\frac{\Delta y}{\Delta x}=\frac{f\left(x_{2}\right)-f\left(x_{2}\right)}{x_{2}-x_{1}}$[/tex]
Substitute the value of [tex]$f\left(x_{1}\right)$[/tex] with, [tex]$f\left(x_{1}\right)$[/tex] with [tex]$3, x_{2}$[/tex] with 2 and [tex]$x_{1}$[/tex] with 1 .
[tex]$$\begin{aligned}&\frac{\Delta y}{\Delta x}=\frac{5-1}{1} \\&\frac{\Delta y}{\Delta x}=4\end{aligned}$$[/tex]
Lori wants to design a computer simulation to study how many spins it takes to land on each color once there are 4 colors on the wheel using the digits 0 through 9 she will assign a digit to each section of the wheel which option describes how the digits can be assigned
Answer:
The number of ways in which the digits can be assigned in the color wheel can be determined by the permutation of 8 taken 4 since it is in circular formation and whichever comes first is not important.
number of ways = 9P4 = 3024 ways