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True [87]
2 years ago
5

If the vertex of a parabola is at the point (-2, 5), then the equation for the axis of symmetry for the parabola is x = -2. True

or false?
Mathematics
1 answer:
balandron [24]2 years ago
6 0

Answer:

true

Step-by-step explanation:

thats really it i believe its true

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I think the answer is true.
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3 years ago
D) The perimeter of room is 28 m. and the height is 3.5 m. Find the area of 4 walls.
mote1985 [20]

Answer: 98

Step-by-step explanation:

Area of four walls = Curved surface area

                             = perimeter × height

                              =    28          ×   3.5

                              = 98 m square  

7 0
1 year ago
Please help me in so confused
jolli1 [7]

Answer:

A

Step-by-step explanation:

Similar figures have sides in the same ratio

169/1.3 = 17/x

x = 17×1.3/169

x = 0.131 m

5 0
2 years ago
Law of sines formula
Gnoma [55]
The formula for the law of sines is:

sin(A)/a = sin(B)/b = sin(C)/c

Big letters denote angle measures while smaller letters denote side lengths.
6 0
3 years ago
The function h(x) = x2 + 14x + 41 represents a parabola.
defon
Part A:

h(x)= x^{2} +14x+41

The first step of completing the square is writing the expression x^{2} +14x as (x+7)^{2} which expands to x^{2} +14x+49.

We have the first two terms exactly the same with the function we start with: x^{2} and 14x but we need to add/subtract from the last term, 49, to obtain 41. 

So the second step is to subtract -8 from the expression x^{2} +14x+49

The function in completing the square form is
h(x)= (x+7)^{2}-8

Part B:

The vertex is obtained by equating the expression in the bracket from part A to zero

x+7=0
x=-7

It means the curve has a turning point at x = -7

This vertex is a minimum since the function will make a U-shape. 
A quadratic function a x^{2} +bx+c can either make U-shape or ∩-shape depends on the value of the constant a that goes with x^{2}. When a is (+), the curve is U-shape. When a (-), the curve is ∩-shape

Part C:

The symmetry line of the curve will pass through the vertex, hence the symmetry line is x=-7

This function is shown in the diagram below




3 0
3 years ago
Read 2 more answers
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