2 years ago

Select the correct difference. -3z^7- (-5z^7)

Mathematics

2 answers:

irina [24]2 years ago

7 0

The first choice will the correct answer

Rom4ik [11]2 years ago

3 0

2z^7 the first choice

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coldgirl [10]

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3 years ago

In a random sample, 3 of 400 computer chips are defective. Based on

Ne4ueva [31]

Answer:

750 of 100,000 chips would be expected to be defective.

Step-by-step explanation:

(3/400) and (?/100,000)

100,000 ÷ 400 = 250.

Multiply 250 by 3 to find the number of defective chips.

250 x 3 = 750.

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2 years ago

At what point on the curve x = 6t2 + 6, y = t3 − 2 does the tangent line have slope 1 /2 ?

Naya [18.7K]

Answer:

Hello,

P=(30,6)

Step-by-step explanation:

$x=6t^2+6\\y=t^3-2\\\\\dfrac{dx}{dt}= 12t\\\dfrac{dy}{dt}= 3t^2\\\\\dfrac{dy}{dx} =\dfrac{\dfrac{dy}{dt} }{\dfrac{dx}{dt} } =\dfrac{3t^2}{12t} =\dfrac{t}{4} \\\\\dfrac{t}{4} =\dfrac{1}{2} \Longrightarrow t=2\\\\\\x=6t^2+6=6*2^2+6=30\\\\y=t^3-2=2^2-2=8-2=6\\\\\\Tangence\ point=(30,6)\\$