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Wewaii [24]
3 years ago
8

Helpppp Plsssss Asap!! Show your work!! Thank you!! ​

Mathematics
1 answer:
tia_tia [17]3 years ago
8 0
<h2>Hello!</h2>

The answer is: B) (x-4)^{2}+1

<h2>Why?</h2>

Since from the graph we can only see the position of the vertex (4,1), let's find the vertex of the chosen option (B).

g(x)=(x-4)^{2}+1=x^{2}-8x+16+1=x^{2}-8x+17

Where:

a=1\\b=-8\\c=17

Finding the vertex:

x=\frac{-b}{2a}=\frac{-(-8)}{2*1}=\frac{8}{2}=4

So, x-coordinate of the vertex is 4,

Susbtituting x into the function, we can find the y-coordinate

g(4)=y=4^{2}-8(4)+17=1

So, y-coordinate of the vertex is 1

Hence,

The Vertex is located at (4,1)

If the vertex is located at (4,1), then the chosen option is correct.

Have a nice day!

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The area of a rectangle varies jointly as its length and width. Find the equation of joint variation if A = 60ft², l = 15ft, and
MaRussiya [10]

Answer: The length is 6 feet and the width is 10 feet.

Step-by-step explanation: The question has specified the area as 60 (square feet) and the length and width are yet unknown. However we know that the length is 4 feet less than the width. What this means is that, if the width is W, then the length is W - 4.

We can now write an equation for the area of the rectangle as follows;

Area = L x W

60 = (W - 4) x W

60 = W^2 - 4W

If we rearrange all terms on one side of the equation, we now have

W^2 - 4W - 60 = 0

This is a quadratic equation and by factorizing, we now have

(W + 6) (W - 10) = 0

Hence,

Either W + 6 = 0 and then W = -6

Or W - 10 = 0 and then W = 10

We know that the side of the rectangle cannot be a negative value, so we go with W = 10.

Having calculated W as 10, the length now becomes

L = W - 4

L = 10 - 4

L = 6

Therefore, length = 6 feet and width = 10 feet

5 0
2 years ago
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A graph shows the relationship between the height of a plant and the number of days. On which axis should the height of the plan
liraira [26]

Answer:

y-axis

Step-by-step explanation:

y-axis

7 0
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Find the area of the parallelogram whose vertices are given below. ​A(negative 2​,2​) ​B(2​,0​) ​C(10​,3​) ​D(6​,5​)
swat32

Answer: Area of Parallelogram is 28 units squared.

Step-by-step explanation:

Knowing, any two vector sides of a parallelogram sharing the same initial point, we can find the area of parallelogram that two vectors are shaping, using the cross product of these two vectors a×b, where the area is given by

Area= |a×b| ___ (1)

From the given points,we may choose any three of them such and find a two vector and expresses the sides of parallelogram " or one side and a diagonal of parallelogram" ,we may choose for example B ,C and D.

Moreover, we may choose point B, to be common point for the two sides " the initial point of two vector" thus we need to find vector BD and vector BC .

Calculations are given in picture.

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3 years ago
Which function has real zeros at x = 3 and x = 7
iren2701 [21]

Answer:

7

Step-by-step explanation:

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