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Ymorist [56]
3 years ago
8

Write a quadratic equation for a parabola with roots at (-2, 0) & (4,0) and a y-intercept at ( 0, -16) Write your answer in

factored form
Mathematics
1 answer:
meriva3 years ago
8 0

9514 1404 393

Answer:

  y = 2(x +2)(x -4)

Step-by-step explanation:

The y-intercept will be a constant times the product of the roots. Here, the product of the roots is (-2)(4) = -8, so the constant of interest is -16/-8 = 2. That constant is the coefficient of the leading term of the quadratic, so is a multiplier of the factored form.

  y = 2(x +2)(x -4)

__

For root p, (x-p) is a factor in the factored form.

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Which is the best estimate for the product of 104.143 * 10,021.4
Lilit [14]

1,000,000

Explain: 100 x 10,000 = 1,000,000 just round then multiply

4 0
3 years ago
Geometry !!! <br><br> A. 56 degrees<br> B. 57 degrees <br> C. 58 degrees<br> D. 59 degrees
monitta
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answer is 

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6 0
3 years ago
The pilot of a Coast Guard patrol aircraft on a search mission had just spotted a disabled fishing trawler and decided to go in
Svetllana [295]

Answer:

\frac{dD}{dt}= 181\frac{168}{1600}

Step-by-step explanation:

h= 1000 ft

dx/dt= 232 ft/sec

D= 1600 ft

First, we have to find a distance x ( shown in the figure)

applying pythagorus theorem

D^2= h^2+x^2................1

x^2= D^2-h^2

= 1600^2-1000^2

x^2= 1560000

x=1248.99 m

Now we can find out how fast the aircraft is receding from the trawler

( notice that the height is not changing)

so differentiating equation 1 w.r.t t we get

\frac{d}{dt} (D^2)= \frac{d}{dt}(h^2+x^2)

2DD'= 2hh'+2xx'

D\frac{dD}{dt}= h\frac{dh}{dt}+x\frac{dx}{dt}

now putting values we get

1600\frac{dD}{dt}= 1000\times0+232\times1249

\frac{dD}{dt}= 181\frac{168}{1600}

6 0
3 years ago
A
blagie [28]

hope it helps.I was reading the same chapter

5 0
3 years ago
Match the reason with the statements in the proof if the last line of the proof would be 6.&lt;3 and &lt;5 are supplementary bec
shusha [124]

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