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Setler79 [48]
3 years ago
15

What is the value of 3ab+5b-6 when a =-1 and b=3

Mathematics
2 answers:
DedPeter [7]3 years ago
5 0

Answer: Answer is 0

Step-by-step explanation:

adelina 88 [10]3 years ago
3 0

Answer:

3ab+5b-6 = 0

Step-by-step explanation:

3ab+5b-6

a =-1 and b=3

Solve :

3ab+5b-6

= 3(-1)(3) + 5(3) - 6

= -9 + 15 - 6

= 0

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elixir [45]
<h2>At the moment when the radius is 24 centimeters, the volume is increasing at a rate of 2171.47 cm³/min.</h2>

Step-by-step explanation:

We have equation for volume of a sphere

             V=\frac{4}{3}\pi r^3

where r is the radius

Differentiating with respect to time,

            \frac{dV}{dt}=\frac{d}{dt}\left (\frac{4}{3}\pi r^3 \right )\\\\\frac{dV}{dt}=\frac{4}{3}\pi \times 3r^2\times \frac{dr}{dt}\\\\\frac{dV}{dt}=4\pi r^2\times \frac{dr}{dt}

Given that

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Substituting

           \frac{dV}{dt}=4\pi r^2\times \frac{dr}{dt}\\\\\frac{dV}{dt}=4\pi \times 24^2\times 0.3\\\\\frac{dV}{dt}=2171.47cm^3/min

At the moment when the radius is 24 centimeters, the volume is increasing at a rate of 2171.47 cm³/min.

4 0
3 years ago
What is y=6x^2+13x-8 in intercept form
Troyanec [42]
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