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ValentinkaMS [17]
3 years ago
14

What is the vertex, y intercept, and a value of this equation? "y=-x^2-4x-1"?

Mathematics
1 answer:
cluponka [151]3 years ago
8 0
Hello : 
y= -x²-4x-1
y = - (x²+4x+1)
y = - ((x²+4x+4)-4+1)
y = - ((x+2)²-3)
y = -(x+2)²+3     the vertex is A(-2 ; 3)
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Help please ASAP thank you!! your awesome if you help
12345 [234]

Answer:

Perimeter=56 units

Area =196 square unites

Step-by-step explanation:

The diagonal would be 14√2.

The formula for area using the diagonal is 1/2d².

1/2x(14√2)²=1/2x196x2=196

For perimeter, s²+s²=392

2s²=392

s²=196

s=√196

s=14

14x4=56

6 0
3 years ago
For the arthritic sequence 5,9,13,17,21,... how many terms would you need to get to 129
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Answer:

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Step-by-step explanation:

The first term is 5 and the common difference is 9-5=4, so the n-th term is ...

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Then the term number for the term 129 is ...

  129 = 4n +1 . . . . . put the given value in the formula

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8 0
3 years ago
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aleksandrvk [35]

Answer:

The correct choice is the third answer.

Step-by-step explanation:

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jenyasd209 [6]

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Step-by-step explanation:

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Answer:

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3 years ago
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