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Damm [24]
3 years ago
6

Find the axis of symmetry and vertex of the following y= -2x2-3x+2

Mathematics
1 answer:
Mnenie [13.5K]3 years ago
8 0
Y= -2x²-3x+2, (form y = ax² +b .x + c

The parabola opens downward & hence it's Vertex is a MAXIMUM.

We know that the axis of symmetry is -b/2a ==>3/(-4) ==>
x= - 3/4 (axis of symmetry. At x=-3/4 , y = 25/8 = 3.125

Hence the axis of symmetry is x= - 3/4 & the vertex is at (-3/4, 25/8)
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In the figure, angle ABC and angle ADB are each right angles. Additionally, AC = 17.8 units and AD = 5 units. What is the length
Marizza181 [45]

Answer:

DB = 8

Step-by-step explanation:

Δ ADB and Δ BDC are similar so ratios of corresponding sides are equal, that is

\frac{DB}{DC} = \frac{AD}{BD} , substitute values

\frac{DB}{17.8-5} = \frac{5}{BD}

\frac{DB}{12.8} = \frac{5}{BD} ( cross- multiply )

DB² = 64 ( take the square root of both sides )

DB = \sqrt{64} = 8

7 0
3 years ago
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Travka [436]
We Know, distance = speed * time
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In short, Your Answer would be 38.75 miles

Hope this helps!
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It is twelve o'clock (AM) in New York.

Step-by-step explanation:

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8 0
4 years ago
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3 years ago
Simplify please (3^2 x^4)^5
lubasha [3.4K]

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