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anygoal [31]
3 years ago
8

These are all my points I'm desperate please help I've posted this 4 other times

Mathematics
2 answers:
Juliette [100K]3 years ago
8 0

Answer:

y = (x+3)^2 -1

Step-by-step explanation:

The vertex form of the equation is

y = a(x-h)^2 +k  where (h,k) is the vertex

The vertex is (-3,-1)

y = a(x- -3)^2 -1

y = a(x+3)^2 -1

Pick another point  (-2,0) and substitute it into the equation

0 = a(-2+3)^2 -1  to find a

0 =a(1)^2 -1

0 = a-1

1 = a

y = (x+3)^2 -1

laiz [17]3 years ago
6 0

Answer:

y = (x + 3)² - 1

y = x² + 6x + 8

Step-by-step explanation:

Vertex: (-3,-1)

y-intercept: (0,8)

y = a(x - -3)² - 1

y = a(x + 3)² - 1

8 = a(0 + 3)² - 1

9a = 9

a = 1

y = (x + 3)² - 1

y = x² + 6x + 8

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gregori [183]
Pstepstep by step ok
5 0
2 years ago
Measurement of angle 1
OLEGan [10]

Answer:

55 degrees

Step-by-step explanation:

Given that a circle and inside two chords with same arc length.

We are to find the angle between the two chords.

Given that two arcs subtend angle 125 degrees at the centre.

Let us join the two ends of chords to make the figure as a triangle inside a circle.

The triangle is isosceles as two arcs and hence chords are equal.

By central angle theorem we have the two equal angles as 1/2 (125) = 62.5

Hence we have a triangle with two equal angles 62.5 and another angle 1.

By triangle sum of angles theorem

angle 1+62.5+62.5 = 180

Hence angle A = 180-62.5-62.5 = 55 degrees.

5 0
3 years ago
Chloe biked the same distance each day for 9 days. If she traveled 513 kilometers altogether, how many kilometers did she travel
kow [346]

Answer:

57 kilometers a day.

Step-by-step explanation:

I just divided 513 by 9 and got that.

5 0
2 years ago
Help me to choose the right answer
irga5000 [103]

Answer:

its B

Step-by-step explanation:

8 0
2 years ago
The Quadratic Equation c² + 6c+ 8 = 0<br><br> Show work please
Bad White [126]
The formula for the quadratic formula is x (c in this case) = (-b(+/-)√(b²-4ac))/2a
This is used for an equation in standard quadratic form: ax² + bx + c = 0
1.) Put it in the correct form, if not already in it.
Ex. c² + 6c + 8 = 0
2.) Identify each part of the equation:
a = 1 (the leading coefficient), b = 6 (the coefficient in front of the second variable), c = 8
3.) Plug in each variable answer
c = (-6(+/-)√(6²-4(1)(8))/2(1)
4.) Simplify
c = (-6(+/-)√(36-(4*8))/2
c = (-6(+/-)√(36-32))/2
c = (-6(+/-)√(4))/2
c = (-6(+/-)2)/2
*Here, the equation splits in two. It becomes:
c = (-6+2)/2 AND c = (-6-2)/2
*Simplify again:
c = -4/2 AND c = -8/2
c = -2 AND c = -4
The answers c = -2 and c = -4 would solve the given equation.
Hope this helps! :)
6 0
3 years ago
Read 2 more answers
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