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Vlada [557]
3 years ago
14

How to graph y = - x2 - 4x-3​

Mathematics
2 answers:
Crazy boy [7]3 years ago
8 0

Answer:

graph is in the attachment

Step-by-step explanation:

y=-x²-4x-3=-x²-4x-4+1=-(x+2)²+1

dimaraw [331]3 years ago
4 0
Is the x2 supposed to be squared?
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Suppose Borman earned $148,000 last year. She calculates her self-employment tax by multiplying
Semenov [28]

Answer:

Yes Borman is correct.

Step-by-step explanation:

Borman moved the decimal point 2 spaces to the left which gave her 0.153

Then she multiplied that by $148,000 to get 15.3% of it which would give her $22,644 so therefore, she is correct.

6 0
3 years ago
A pigpen is to be enclosed using 640 m of fencing along three of its sides, the fourth side being a barn. Determine the dimensio
Basile [38]

Answer:

W_{max}=480m\\ L_{max}=160m

Step-by-step explanation:

Since we know we only have 640 feet of fence available, we know that L + W + L = 640, \implies 2L + W = 640. This allows us to represent the width, W, in terms of L: W = 640 – 2L

Remember, the area of a rectangle is equal to the product of its width and length, therefore,

A_{\rm pigpen}=L(640-2L)\implies 640L-2L^2

Notice that, quadratic has been vertically reflected, since the coefficient on the squared term is negative, so the graph will open downwards, and the vertex will be a maximum value for the area.

recall,

  • x_{max}=-b/2a
  • f(x)_{max}=f(x_{max})

Since our function is A(L)=640L-2L², we get

  • a=-2
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plug in the value of a and b into the first formula:

L_{max}=-(640)/2(-2)\implies 160

A(L)_{max}=640(160)-2(160)^2\implies 76800

hence,the dimensions of the pen that will maximize the area are<u> </u><u>L=</u><u>1</u><u>6</u><u>0</u><u>m</u><u> </u>and<u> </u><u>W=</u><u>7</u><u>6</u><u>8</u><u>0</u><u>0</u><u>/</u><u>1</u><u>6</u><u>0</u><u>=</u><u>4</u><u>8</u><u>0</u><u>m</u>

and we're done!

3 0
3 years ago
Write 2.0093 in expanded form
tensa zangetsu [6.8K]

Answer:

2+0.0+0.00+0.009+0.0003

Step-by-step explanation:

6 0
4 years ago
Simplify 2p - 10 - 4p - 7 <br><br> A -19p<br><br> B -8p - 11 <br><br> C -2p - 17<br><br> D -2p2 - 17
kifflom [539]
2p - 10 - 4p - 7....combine like terms
-2p - 17 <===
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4 years ago
Read 2 more answers
Cuanto es <br> (99+24)-47*(920+41)
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Answer:

-45044

Step-by-step explanation:

8 0
3 years ago
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