3 years ago

5000

Mathematics

1 answer:

melisa1 [442]3 years ago

8 0

Answer:

can u ;ut it in english plzz

Step-by-step explanation:

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X 2 + 6x + 8 = 0 Final answer: x = x = ____

mezya [45]

-1 im not sure if you meant 2x+6x+8=0

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3 years ago

At least 3 units away from negative 1 (plot point)

asambeis [7]

Answer:

Positive 2 or Negative 4

Step-by-step explanation:

If this is on a number line

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Let r(t)=⟨t2,1−t,4t⟩. calculate the derivative of r(t)⋅a(t) at t=5, assuming that a(5)=⟨−4,4,−5⟩ and a′(5)=⟨−5,9,3⟩

erastovalidia [21]

$\mathbf r(t)=\langle t^2,1-t,4t\rangle$
$\implies\mathbf r'(t)=\langle 2t,-1,4\rangle$

$\dfrac{\mathrm d(\mathbf r(t)\cdot\mathbf a(t))}{\mathrm dt}\bigg|_{t=5}=\mathbf r'(5)\cdot\mathbf a(5)+\mathbf r(5)\cdot\mathbf a'(5)$
$=\langle10,-1,4\rangle\cdot\langle-4,4,-5\rangle+\langle25,-4,20\rangle\cdot\langle-5,9,3\rangle$
$=(-40-4-20)+(-125-36+60)$
$=-165$

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3 years ago

X and y=540 when X=10, find y when x=1/2

soldier1979 [14.2K]

Answer:

y = 27

Step-by-step explanation:

if x = 10 when y = 540 , y = 54x

if x = 1/2 y = 54*1/2 = 27

y = 27

4 0

3 years ago

A culture started with 5000 bacteria. after 7 hours, it grew to 6500 bacteria. predict how many bacteria will be present after 1

spin [16.1K]

6500=7x+5000

6500-5000=7x+5000-5000

1500=7x

1500/7≈214

x≈214

y=19·214+5000

y=9066

answer=9066 bacteria

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3 years ago