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ASHA 777 [7]
3 years ago
11

Use the vertex formula to find the vertex of the quadratic function f(x)=-x^2+6x-10

Mathematics
2 answers:
mixer [17]3 years ago
5 0

Answer:

15

Step-by-step explanation:

meriva3 years ago
5 0

Answer:

I am sorry I can't help

Step-by-step explanation:

please forgive me

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The areas of two similar triangles are 72dm2 and 50dm2. The sum of their perimeters is 226dm. What is the perimeter of each of t
BaLLatris [955]

Answer:

Perimeter of first triangle = 102.73

Perimeter of 2nd triangle = 123.27

Step-by-step explanation:

Dividing the area of two triangle we can find the square of the scale factor:

\frac{72}{50}  = 1.44

Scale factor will become = \sqrt{1.44} = 1.2

Sum of perimeter of triangle = 226dm

perimeter of triangle = x + y + z = p

perimeter of first triangle = 1.2(x + y + z) = 1.2p

perimeter of 2nd triangle = (x + y + z) = p

Permieter of first triangle + Perimeter of second triangle = 226

1.2(p) + p = 226

2.2p = 226

p = 102.73 // This is the perimeter of 2nd triangle

For finding permieter of first triangle, multiply it with 1.2

102.7 * 1.2 = 123.27 // This is the perimeter of 1st triangle

7 0
4 years ago
If a quadratic function has x-intercepts at 2 = -
PolarNik [594]

Complete question is;

If a quadratic function has x-intercepts at x = -3 and x = -1, one possible equation of the function would be y = (x + 3)(x + 1), a graph that first

decreases until it reaches the vertex, (-3, -1), then increases (opening upward U shape).

So then, if a quadratic function has x-intercepts at x = -2 and x = 2

a. What is the equation of this quadratic function? Explain your reasoning

b. What is the vertex of the equation? Show your work and explain your reasoning.

Answer:

Quadratic equation is; y = x² - 4

Vertex: (0, -4)

Step-by-step explanation:

The x-intercepts are at x = -2 and x = 2. Thus, the equation is;

y = (x - (-2))(x - 2)

y = x² + 2x - 2x - 4

y = x² - 4

Now,the coordinates of the vertex will be (h, k)

Where;

h = -b/2a

k is the value of y at x = h

From y = x² - 4, h = 0

Thus, putting x = h = 0 in the quadratic equation, we have;

y = 0² - 4

y = -4

Thus,the coordinates of the vertex are; (0, -4)

3 0
3 years ago
A helicopter is hovering 100 meters above the ocean. Directly below it, a submarine is at a depth of 200 meters
Sati [7]
So whats the question...?
3 0
3 years ago
28 + 8x = 8(x + 3) + 2<br><br>What is x? ​
SVETLANKA909090 [29]

Answer:

Step-by-step explanation:

28 + 8x = 8x + 24 + 2

28 + 8x = 8x + 26

28 ≠ 26

no solution

3 0
3 years ago
Read 2 more answers
A rectangular prism has length of 6.7 in, width of 9.3 in and a height of 10.5 in. What is the volume? how to solve
Lemur [1.5K]

Answer:

V = 654.255 in^3

Step-by-step explanation:

6.7 in x 9.3 in x 10.5 in = 654.255 in^3 (cubic inches)

6 0
2 years ago
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