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BabaBlast [244]
4 years ago
8

If you flip three fair coins what is the probability that you’ll get at least two heads?

Mathematics
2 answers:
prisoha [69]4 years ago
7 0
If u flip three fair coins the possibility that two coins will have heads is two over three
ElenaW [278]3 years ago
5 0

2/4 That the answer to this question

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Write a function in any form that would match the graph shown below
ella [17]

Answers:

  • Vertex form:  y = -2(x-1)^2 + 8
  • Standard form: y = -2x^2 + 4x + 6

Pick whichever form you prefer.

=============================================================

Explanation:

The vertex is the highest point in this case, which is located at (1,8).

In general, the vertex is (h,k). So we have h = 1 and k = 8.

One root of this parabola is (-1,0). So we'll plug x = -1 and y = 0 in as well. As an alternative, you can go for (x,y) = (3,0) instead.

Plug those four values mentioned into the equation below. Solve for 'a'.

y = a(x-h)^2 + k

0 = a(-1-1)^2+8

0 = a(-2)^2+8

0 = 4a+8

4a+8 = 0

4a = -8

a = -8/4

a = -2

The vertex form of this parabola is   y = -2(x-1)^2+8

Expanding that out gets us the following

y = -2(x-1)^2+8

y = -2(x^2-2x+1)+8

y = -2x^2+4x-2+8

y = -2x^2+4x+6 .... equation in standard form

7 0
3 years ago
Can someone help me please? the last point of the first graph ends on 6 ​
just olya [345]

Answer:

a) Yes

b) for reference, draw the line y = x, and reflect it over that, this reflection will be your inverse. Or switch the x and y values of each point of the function.

Here is a photo of the original function in black, it's inverse in red, and the line of reflection y = x in blue:

c) No, because it fails the vertical line test, when you draw a vertical line across the inverse function, it hits it more than once.

d) Domain of the original function: -6 ≤ x ≤ 6 ; x(the domain) is greater than or equal to -6 and less than or equal to 6.

e) Domain of inverse function: 0 ≤ x ≤ 4 ; x(the domain) is greater than or equal to 0 and less than or equal to 4.

f) Range of the original function: 0 ≤ y ≤ 4 ; y(the range) is greater than or equal to 0 and less than or equal to 4.

e2) Range of the inverse function: -6 ≤ y ≤ 6 ; y(the range) is greater than or equal to -6 and less than or equal to 6.

f2) x-intercept of original function: -6

g) y-intercept of the inverse function: -6

h) x-intercept of the inverse function: 4

i) y-intercept of the original function: 4

j) (2,2) or any point where the x, and y are the same within the function, or the point where the function intersects y = x.

5 0
3 years ago
What are TWO different ways you know when you are finished dividing?
vfiekz [6]
You know you are finished dividing when you can no longer simply & when you plug it back in to check the answer
7 0
3 years ago
What equation gets you -3 , 0 , 3 , 6 , 9 ?
Sedbober [7]

Answer:

y=3x

Step-by-step explanation:

So our y has the values -3, 0, 3, 6, 9

The equation could be : y= 3x,

because (x= -1, y= -3), (x=0, y=0), (x=1, y=3), (x=2, y=6), (x=3, y=9)…

8 0
3 years ago
The discriminant of a quadratic equation is negative. One solution is 3+4i . What is the other solution?
Natali [406]
I hope this helps you



3-4i
6 0
4 years ago
Read 2 more answers
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