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3 years ago

What are the solutions of the quadratic equation (x + 3)2 = 49

Mathematics

2 answers:

Korvikt [17]3 years ago

8 0

the right answer is

x = 4 and x = –10

I just take the test and I got it right I hope yall get it right to

Svetlanka [38]3 years ago

6 0

Answer:

x=4 and x=10 (c on edge)

Step-by-step explanation:

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3 years ago

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Label the equations in number 5-7 as True or False:

kkurt [141]

Answer:

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3 years ago

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I need a A in math can you help me with this answer

loris [4]

Answer: 13

Step-by-step explanation:

12^2+5^2=13^2

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3 years ago

Two possible plans for a new bathroom are shown. Is there a value of x for which the perimeters are equal? Show your work. Expla

Dominik [7]

Answer:

There is no value of x to fit this requirement.

Step-by-step explanation:

The 2 perimeters in terms of x are:

4(x + 3) for the square and

2(x+1) + 2(x +4) for the rectangle

and these need to be equal so

we equate these 2 and solve for x:

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4x + 12 = 2x + 2 + 2x + 8

4x + 12 = 4x + 10

4x - 4x = 10 - 12

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3 years ago

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Define the axis of symmetry, vertex, focus and directrix for

Papessa [141]

Answer:

see attached

Step-by-step explanation:

The equation is in the form ...

4p(y -k) = (x -h)^2 . . . . . (h, k) is the vertex; p is the focus-vertex distance

Comparing this to your equation, we see ...

p = 4, (h, k) = (3, 4)

p > 0, so the parabola opens upward. The vertex is on the axis of symmetry. That axis has the equation x=x-coordinate of vertex. This tells you ...

vertex: (3, 4)

axis of symmetry: x = 3

focus: (3, 8) . . . . . 4 units up from vertex

directrix: y = 0 . . . horizontal line 4 units down from vertex

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2 years ago