The value of x = 3
3cm, 4cm, and 5cm are the sides of a right-angled triangle.
What is Pythagoras theorem?
In a right-angled triangle, the hypotenuse is the largest of the three sides, so hypotenuse is (x +2).
As a result of Pythagoras' theorem,
hyp² = base² + alt²
here ,
x² + (x+1)² = (x+2)²
by simplifying the equation,
x² + x² + 2x +1 = x² + 4 + 4x
=> 2x² + 2x + 1 = x² + 4x + 4
=> x² - 2x -3 = 0
=> x² - 3x + x - 3 = 0
=> x(x-3) + 1(x-3) = 0
=> (x+1) (x-3) = 0
so, x+1 = 0 or x-3 = 0
x = -1 or x = 3
since length cannot be negative,
x = -1 is not considered .
so x= 3.
value of x is 3.
So the triangle's three sides are 3cm, 4cm, and 5cm.
to double-check the answer
Pythagoras' theorem substitute values
hyp² = b²+a²
hyp = [tex]\sqrt{3^{2}+4^{2} }[/tex]
= [tex]\sqrt{9+16}[/tex]
= [tex]\sqrt{25}[/tex]
= 5
As a result, the three sides of a right-angled triangle are 3cm, 4cm, and 5cm.
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-9(x-4)=81 i know what im doing im jsur stuck
Solution:
The equation in the question is given below as
[tex]-9(x-4)=81[/tex]Step 1:
Expand the brackets in the qu
ARCHAEOLOGY A farm lane in Ohio crosses two long, straight earthen mounds that may have been built about 2000 years ago. The mounds are about 200 feet apart, and both form a 63° angle with the lane, as shown. Are the mounds parallel? How do you know?
Yes. Because Mound 1 and Mound 2 form a pair of corresponding angles with that red transversal line (lane). Corresponding angles are congruent and parallel to each other.
1) Since both mounds share the same measure of the angle, then we can say that those mounds are yes, parallel to the lane since they both corresponding angles, and corresponding angles are parallel and congruent to each other.
2) So the answer is :
Yes. Because each mound 1 and Mound 2 form a pair of corresponding angles with that red transversal line. Corresponding angles are congruent and parallel to each other.
What is the solution to the equation?
Hello!
Let's solve:
[tex]\dfrac{2}{5}(15x+40)} =6x+10\\\\\\\text{Multiply the '2/5' into the function inside the parentheses}\\\dfrac{2}{5} *15x + \dfrac{2}{5} *40=6x+10\\\\6x + 16 =6x+10\\\\\\\text{Subtract '6x' from both sides}\\6x + 16-6x=6x+10-6x\\16 = 10[/tex]
Since 16 doesn't equal 10 ==> There are no solution
Hope that helps!
Convert 120 inches to feet. There are 12 inches in a foot. O A. 1200 feet B. 1440 feet C. 20 feet O D. 10 feet
There are 12 inches in a foot.
To convert 120 inches to feet we can use the next proportion:
[tex]\frac{12\text{ inches}}{120\text{ inches}}=\frac{1\text{ foot}}{x\text{ feet}}[/tex]Solving for x:
x = 1*120/12
x = 10 feet
Help me! i need this answer now i am so dead. if i get it worng please help pls
Answer:
x = 4.8
Step-by-step explanation:
Area = Length times width
12 = 2.5x Divide both sides by 2.5
4.8 = x
ind the point at which the line f ( x ) = − 4 x − 1 intersects the line g ( x ) = − 2 x + 1
Answer:
(-1,3)
Step-by-step explanation:
Where the two lines intersect, they have equal values
-4x-1 = -2x + 1
-2 = 2x
x = -1
Now, you have 'x' ....use this value in either of the equations to find 'y'
-2 (-1) + 1 = y = 3
(-1,3)
At the craft store, Elena bought a bag of purple and blue marbles. She received 19 purple marbles and 6 blue marbles. What percentage of the marbles were purple? were purple?
She received 19 purple and 6 blue marbles, so the total number of marbles is 19 + 6 = 25
Percentage of purple marbles = 100 * 19/25 = 1900/25 = 76%
Percentage of blue marbles = 100 * 6/25 = 600/25 = 24%
Answer:
Percentage of purple marbles = 76%
Percentage of blue marbles = 24%
2. (05.03 MC)In the figure below, AABC 2 ADEF. Point C is the point of intersection between AG and BF, while point E is the point of intersection between DG and BFДАBFProve AABC AGEC. (10 points)
Prove that Tringle ABC is congruent to tringle GEC
How many times larger is (1.008 x 101) than (6 x 10-f)?
0.168
5.95
11.682
16.8
Answer:
11.682 many times larger
Answer:
16.8
Step-by-step explanation:
To find how many times larger (1.008 × 10¹) is than (6 × 10⁻¹), divide the first expression by the second expression:
[tex]\implies \dfrac{1.008 \times 10^1}{6 \times 10^{-1}}[/tex]
[tex]\textsf{Apply the fraction rule} \quad \dfrac{ab}{cd}=\dfrac{a}{c} \times \dfrac{b}{d}:[/tex]
[tex]\implies \dfrac{1.008}{6} \times \dfrac{10^1}{10^{-1}}[/tex]
Divide the numbers 1.008 and 6:
[tex]\implies 0.168 \times \dfrac{10^1}{10^{-1}}[/tex]
[tex]\textsf{Apply the exponent rule} \quad \dfrac{a^b}{a^c}=a^{b-c}:[/tex]
[tex]\implies 0.168 \times 10^{(1-(-1)}[/tex]
Simplify:
[tex]\implies 0.168 \times 10^{2}[/tex]
[tex]\implies 0.168 \times 10 \times 10[/tex]
[tex]\implies 1.68 \times 10[/tex]
[tex]\implies 16.8[/tex]
To solve the equation x/5= 30 you will ...O divide both side by 5. The solution is x=6O multiply both sides by 5. the solution is x=150O Add 5 to both sides. The solution is x=35O Subtract 5 from both sides. The solution is x=25
You have the equation:
[tex]\frac{x}{5}=30[/tex]To solve this equation you have to clear the variable x. You can clear the variable x, as follow:
You multiply both sides of the equation by 5.
[tex](5)\frac{x}{5}=30(5)[/tex]Then the solution is:
[tex]x=150[/tex][First Person To Answer Will Get 5 Stars And Brainlyest] Help Please.
Distance is the total movement of an object without any regard to direction. Total distance jogged by Linsey is 420 yards.
What is distance?
Distance is the total movement of an object without any regard to direction
Given data
vertex 1 is at ( -4, - 1)
vertex 2 is at ( - 4, 5)
vertex 3 is at (2,5)
vertex 4 is at ( 2, -1 )
Lindseys jogs along the edge of the park in order from vertex 1 to the vertex 2 , vertex 2 to vertex 3 and vertex 3 to vertex 4 and then back to vertex 1. One unit in the coordinate grid is 20 yards.
Let us calculate distance vertex 1 and vertex 2of (-4,-1) and (-4,5)
x₁=-4,x₂=-4, y₂=5, y₁=-1
Distance=√(x₂-x₁)²+(y₂-y₁)²
Substitute the values x₁=-4,x₂=-4, y₂=5, y₁=-1 in distance formula
=√(-4+4)²+(5-(-1))²
=√6²
=6
Since 1 one unit on the coordinate gride equal 20 yd.
so 6×20=120 yards.
Now for four vertices we get 4×120=480 yards.
So total distance jogged by Linsey is 420 yards.
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The bank that the Payans would like to borrow from uses the back-end ratio to determine loan qualification, approving applications if the back-end ratio is less than 36%. So, the Payans have collected some information on what the bank will consider to calculate the ratio, including what they estimate their monthly mortgage payment will be.According to the Payans' back-end ratio calculation, the bank will ______(most likely, not) lend the Payans $250,000 to purchase the home because their back-end ratio is_____(equal to, higher than, lower than) 36%
Approved if back-end ratio is less than 36%
Total income: $10,000
Total expenses:
$1,100 + $150 + $500 + $1,000 + $400 = $3,150
Back-end ratio: (Total expenses) / (Total Income) x 100
= (3150/10000)x100 = 31.5%
According to the Payans' back-end ratio calculation, the bank will most likely lend the Payans $250,000 to purchase the home because their back-end ratio is lower than 36%
sixyt students are competing in a video game challenge. if 2 students comete against each other in every round how many different combinations can be made for the first round of the challenge
Answer:
i believe its 30
Step-by-step explanation:
well i think you would divide sixty by 2 which is thirty.
IM SO SORRY IF IM WRONG- THIS IS JUST WHAT I THINK!
Many delivery trucks feature a "How Am I Driving?” sticker on the rear bumper, along with a phone number. This sticker allows drivers to report erratic driving by the truck driver or offer a compliment if they like. A dispatcher at the trucking station accepts calls and records information from those who call the phone number. The dispatcher reports that in the past month, 218 calls were received. Of those calls, 178 reported negative driving behaviors by the truck drivers. How might this data-collection method produce bias in obtaining an estimate of all drivers who are satisfied with the company’s truck drivers?
This sample may lead to nonresponse bias because many drivers may not call the phone number.
This sample may lead to undercoverage bias because some drivers will be more likely to be included in the sample.
The sample may lead to response bias because some who call the phone number may not provide a truthful opinion.
This sample may lead to voluntary response bias because drivers can choose to call the phone number and register an opinion.
The way in which this data-collection method produce bias in obtaining an estimate of all drivers who are satisfied with the company’s truck drivers is that: D. This sample may lead to voluntary response bias because drivers can choose to call the phone number and register an opinion.
What is sampling bias?A sampling bias can be defined as a type of bias in which members of an intended population are selected in such a way that some members have a higher or lower sampling probability (chances) than the other members.
This ultimately implies that, a sampling bias would occur when members of an intended population are selected incorrectly and as such resulting in a sample that is not representative of the entire population.
Generally speaking, a voluntary response sample is a data-collection technique (method) that is always biased because it only include individuals who choose to volunteer, unlike a simple random sample.
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Given the function defined in the table below, find the average rate of change, in
simplest form, of the function over the interval 1 < x < 5.
2
f(x)
1
77
2
68
3
59
4
50
5
5
41
-
Given:
Function interval
[tex]1\leq x\leq5[/tex][tex]\begin{gathered} x\rightarrow f(x) \\ \\ 1\rightarrow77 \\ \\ 2\rightarrow68 \\ \\ 3\rightarrow59 \\ \\ 4\rightarrow50 \\ \\ 5\rightarrow41 \end{gathered}[/tex]Find-: Average rate of change.
Sol:
The average rate of change is:
[tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]Choose any two-point.
[tex]\begin{gathered} (x_1,y_1)=(1,77) \\ \\ (x_2,y_2)=(2,68) \end{gathered}[/tex]So average rate of change is:
[tex]\begin{gathered} m=\frac{y_2-y_1}{x_2-x_1} \\ \\ m=\frac{68-77}{2-1} \\ \\ m=\frac{-9}{1} \\ \\ m=-9 \end{gathered}[/tex]The average rate of change is -9.
Three vertices of a parallelogram are shown in the figure below. Give the coordinates of the fourth vertex. (7,2) (-4,0) (-6, -7)
ANSWER:
STEP-BY-STEP EXPLANATION:
[tex]undefined[/tex]Find the distance between the two points in simplest radical form.
(6,9) (9,6)
Answer:
3√2
Step-by-step explanation:
[tex] \sqrt{ {(6 - 9)}^{2} + {(9 - 6)}^{2} } [/tex]
[tex] \sqrt{ {( - 3)}^{2} + {3}^{2} } [/tex]
[tex] \sqrt{9 + 9} = \sqrt{2 \times 9} = \sqrt{2} \sqrt{9} = 3 \sqrt{2} [/tex]
Find θ where θ = sin-1(-.5) where 0 < θ < 2π. Select all the correct choices. Select one or more: a. 11pi/6 b. pi/6 c. 5pi/6 d. 210 degrees e. 30 degrees
The value of inverse trigonometric function θ = sin-1(-.5) is 30°
What is an inverse trigonometric function?
The inverse trigonometric functions perform the opposite operation of the trigonometric functions such as sine, cosine, tangent, cosecant, secant, and cotangent. We know that trigonometric functions are especially applicable to the right angle triangle.
Here, the given inverse trigonometric function is θ = sin⁻¹(0.5)
Now solving the given inverse trigonometric function by consider 0.5 value in terms of sine that is :
0.5 = sine (30°)
Now, substituting back this value in place of 0.5 and solve for θ :
θ = sin⁻¹(0.5)
θ = sin⁻¹(sin(30°))
Now the inverse of sinθ is θ itself
θ = 30°
Therefore, The value of inverse trigonometric function θ = sin-1(-.5) is 30°.
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Jumping makes a frog so tired, each successive jump is 1/3 the distance of the previous hump. If a frog jumps 24 cm on its first jump, how far will the frog travel after four jumps?
Answer:
35 5/9 cm total
Step-by-step explanation:
24 + 8 + 8/3 + 8 / 9 = 35 5/9 cm
2xy + 4 = -2y - x, solve for x
Answer:
x = -2/y -1
Step-by-step explanation:
2xy + 4 = -2y -----> x = -2y -y
Step 1: Divide 2y to all sides. 2xy÷2y + 4÷2y= -2y÷2y. Since we are divinding y with y it cancels out, so it will be -2÷ 2 = -1
Step 2: x + 2y = -1
Step 3: Then subtract 2y and move it to the other side.
x = -2/y -1
Another way of explaining it:
2xy + 4 = -2y
Step 1: Divide 2 to all sides. 2xy÷2 +4÷2 = -2y÷2
Step 2: xy + 2 = -y
Step 3: Subtract the 2 and move it to the other side.
xy + 2 = -y
-2. -2
Step 4: xy = -2 -y
Step 5: Then we divide the y to all sides. xy÷y = -2÷y - y÷y
Step 6: xy÷y = -2 ÷ y -2 ÷y. We're trying to get x by itself.
Step 7: x = -2/y -1. Since we are divinding y with y it cancels out, so it will be
Answer: x = -2/y -1
(Any Further Questions or Confusion Please Let Me Know)
Mason was creating a sundae masterpiece by adding the following chips to his ice cream. He added 1/3 cup of dark chocolate chips, 1/4 cup of milk chocolate chips, 3/4 cup of peanut butter chips, and 1/2 cup of butterscotch chips. At the last minute, he removed all of the milk chocolate chips to save to eat later. Determine how many chips he put on his sundae. Express your answer as a fraction.
Mason added 19/12 cups of chips to his sundae.
How many chips he put on his sundae?We know that Mason has a sundae and he put:
1/3 cup of dark chocolate chips.1/4 cup of milk chocolate chips (latter are removed)3/4 cup of peanut butter chips 1/2 cup of butterscotch chipsTo get the total number of chips, we just need to add these fractions (except the one for the milk chocolate chips, as these are removed).
Then we will get:
Total = 1/3 + 3/4 + 1/2 = 4/12 + 9/12 + 6/12 = 19/12
Where we used the common denominator 12 to add the fractions.
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4x-3
x=2
4(2)-3
The ____ property is used here.
According to the commutative property, the numbers we use can be moved around or swapped around without changing the solution. For addition and multiplication, the principle is true, but not for division or subtraction.
4x-3
Is x=2
4(2)-3
This uses the ___ attribute?
Answer:
(5,-5) commutative property of subtraction property is used.
Example:
It can be commutative if you retain the negative with the 2 and the positive with the 5. Edited: Subtraction is not a commutative operation; for example, 5-2=3 and 2-5=-3. The order of addition or subtraction does not important, though, if you maintain the sign of the integer, as in +5-2=3 and -2+5=3, for example.
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What is the equation, in slope-intercept form, of the line that passes throughthe point (8, -6) and is perpendicular to y = 4x+7?
From the problem, we are given a point (8, -6) and an equation y = 4x + 7
The equation we are to obtain is perpendicular to y = 4x + 7
In Mathematical terms, it means the slope of the given equation and the one we are to find follow the relation:
[tex]\begin{gathered} m_1\text{ = }\frac{-1}{m_2_{}_{}} \\ \text{where m}_{1\text{ }}\text{represents the slope of the first equation and }m_2\text{ represents the slope of the second equation} \end{gathered}[/tex]slope of the given equation = 4
[tex]\text{Slope of the required equation = }\frac{-1}{4}\text{ = -0.25}[/tex]The required equation passes through a point (8,-6)
The formula for obtaining the equation with a given slope that passes through a point is given as :
[tex]\text{ (y - y}_1)=m(x-x_1)[/tex]By substituting;
[tex]\begin{gathered} (y\text{ - (-6)) = -0.25(x - 8)} \\ y\text{ + 6 = -0.25x + 2} \\ y\text{ = -0.25x -4} \end{gathered}[/tex]The equation in slope-intercept form is y = -0.25x - 4
If f (x) = 4x2 + 3x − 5, then the quantity f of the quantity x plus h end quantity minus f of x end quantity all over h is equal to which of the following? a 4 times the quantity x plus h end quantity squared plus 3 times the quantity x plus h end quantity minus 5 minus 4 times x squared plus 3 times x minus 5 all over h b 4 times the quantity x squared plus 2 times x times h plus h squared end quantity plus 3 times the quantity x plus h end quantity minus 5 minus the quantity 4 times x squared plus 3 times x minus 5 end quantity all over h c the quantity 4 times x plus 4 times h end quantity squared plus the quantity 3 times x plus 3 times h end quantity minus 5 minus the quantity 4 times x squared plus 3 times x minus 5 end quantity all over h d 4 times the quantity x plus h end quantity squared plus 3 times x minus 5 minus 4 times x squared minus 3 times x plus 5 all over h
The difference quotient of the function f(x) = 4x² + 3x - 5 is [f(x + h) - f(x)]/h = 8x + 4h + 3
How to evaluate the difference quotient?The function is given as
f(x) = 4x² + 3x - 5
Start by calculating the function f(x + h)
So, we have the following
f(x + h) = 4(x + h)² + 3(x + h) - 5
Expand
f(x + h) = 4(x² + 2xh + h²) + 3(x + h) - 5
Open the brackets
f(x + h) = 4x² + 8xh + 4h² + 3x + 3h - 5
The difference quotient is then calculated as
[f(x + h) - f(x)]/h
This gives
[f(x + h) - f(x)]/h = (4x² + 8xh + 4h² + 3x + 3h - 5 - 4x² - 3x + 5)/h
Evaluate the like terms
[f(x + h) - f(x)]/h = (8xh + 4h² + 3h)/h
Evaluate the quotients
[f(x + h) - f(x)]/h = 8x + 4h + 3
Hence, the value of [f(x + h) - f(x)]/h is 8x + 4h + 3
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Complete question
If f(x) = 4x² + 3x - 5, then [f(x + h) - f(x)]/h is equal to which of the following?
a=1.9 in, A=46.5°, C=90°Solve the right triangle. Round side lengths one decimal place.
SOLUTION
Given the following
[tex]a=1.9in,A=46.5^0,C=90^0[/tex]Consider the image below
To solve the right triangle, we need to find the following:
[tex]b=\text{?,c}=\text{?and B=?}[/tex]To find B, we use the sum of angles in a triangle
hence
[tex]\begin{gathered} A^0+B^0+C^0=180^0^{} \\ \text{where A=46.5}^0,C=90^0 \end{gathered}[/tex]Substituting into the equation we have,
[tex]\begin{gathered} 46.5^0+B+90^0=180^0 \\ 136.5+B=180^0 \end{gathered}[/tex]Subtract 136.5 from both sides
[tex]\begin{gathered} 136.5+B-136.5^0=180^0-136.5^0 \\ \text{Then} \\ B=180^0-136.5 \\ B=43.5^0 \end{gathered}[/tex]hence
B = 43.5°
To find b, we use the trigonometry ratio for tangent
From the triangle above
[tex]\begin{gathered} \tan A=\frac{a}{b} \\ \text{Where A=46.5in, a=1.9in, b=?} \end{gathered}[/tex]Substituting into the equation
[tex]\begin{gathered} \tan 46.5=\frac{1.9}{b} \\ \text{Then } \\ b=\frac{1.9}{\tan46.5} \\ \text{Where tan46.5=1.0538} \end{gathered}[/tex]Then
[tex]b=1.8030[/tex]hence
b = 1.8in to 1 decima place
To find c, we also apply trigonometry ratio for sine of an angle
[tex]\begin{gathered} \text{sinA}=\frac{opposite}{\text{hypotenuse}} \\ \text{Where } \\ A=46.5^0,\text{ opposite =1.9in},\text{ hypotenuse =c} \end{gathered}[/tex]Substituting the values into the equation we have,
[tex]\begin{gathered} \sin 46.5=\frac{1.9}{c} \\ Multiply\text{ both sides by c, we have } \\ c\times\sin 46.5=\frac{1.9}{c}\times c \\ \text{Then } \\ c\times\sin 46.5=1.9 \end{gathered}[/tex]Divide both sides by 1.9, we have
[tex]\begin{gathered} c=\frac{1.9}{\sin 46.5}=\frac{1.9}{0.7254} \\ \text{Then} \\ c=2.6193 \end{gathered}[/tex]hence
c = 2.6 in
Therefore, to solve the right triangle, we have
Answer; B = 43.5°, b = 1.8in, c = 2.6 in
The graphs below have the same shape. What is the equation of the blue graph? Gox= ?
Here, we want to deduce the equation of the blue graph
From what we have, we can see that the image of the f(x) was moved 2 units to the right and 1 unit upwards
What this mean is that, we have 1 added to the y value and 2 added to the x value
So, the equation of the blue graph is
[tex]G(x)=(x+2)^2+1[/tex]A space shuttle 275 miles above the earth is orbiting the earth once every 4 hours. How far does the shuttle travel in 1 hour? (Assume the radius of the earth is 4,000 miles.) Answer exactly or round to the nearest mile
The space shuttle travels about 6713 miles per hour. Rounded to the nearest mile, this is approximately 6713 miles per hour.
What is a radius ?
In mathematics, the radius is a term used to describe the distance from the center of a circle or a sphere to any point on its surface. It is denoted by the letter "r".
The orbit of the space shuttle is circular, so the distance it travels in one orbit is equal to the circumference of the circle with a radius of 275 + 4000 = 4275 miles (275 miles above the Earth's 4000 mile radius).
The circumference of a circle is given by the formula C = 2πr, where r is the radius of the circle and π is the mathematical constant pi (approximately 3.14). Therefore, the distance traveled by the shuttle in one orbit is:
C = 2π(4275) ≈ 26851 miles
Since the shuttle orbits once every 4 hours, its average speed is:
distance/time = 26851/4 ≈ 6713 miles per hour
Therefore, the space shuttle travels about 6713 miles per hour. Rounded to the nearest mile, this is approximately 6713 miles per hour.
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Question 23 Differentiate. f(x) = (5x - 5)(6x + 1) O f'(x) = 60x - 25 O f'(x) = 30x - 25 O f'(x) = 60x - 35 f'(x) = 60x - 12.5
We have to differentiate f(x).
We can do this as:
[tex]\begin{gathered} f(x)=(5x-5)(6x+1)=30x^2-30x+5x-5=30x^2-25x-5 \\ f\text{'}(x)=30\cdot(2x)-25\cdot(1)-0 \\ f\text{'}(x)=60x-25 \end{gathered}[/tex]The answer is f'(x)=60x-25.
1. Solve for xWxk=for x
Answer:
x=W/k
Explanation:
Given the equation
[tex]W=xk[/tex]To solve for x, we divide both sides of the equation by k.
[tex]\begin{gathered} \frac{W}{k}=\frac{xk}{k} \\ x=\frac{W}{k} \end{gathered}[/tex]Function ggg can be thought of as a translated (shifted) version of f(x)=x^2f(x)=x
2
f, left parenthesis, x, right parenthesis, equals, x, squared.
A parabola labeled f has a vertex at the point 0, 0. A parabola labeled g has a vertex at the point negative 4, negative 5.
Write the equation for g(x)g(x
The equation for g(x) is g(x) = x²-3
When x=0, f(x)= 0 and so has a vertex at (0,0)
Given that g(x) is a shifter version of f(x) and has a vertex at (0,-3), g(x) must be shifted down the y axis such that g(x)= x2+c when x=0 and g(x)= -3 -3=0+c c=-3 when x=3.
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