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Mathematics

1 answer:

Natasha_Volkova [10]3 years ago

7 0

I think you’re correct. It’s B. But the answer D is literally the same as B, so is there a “both B and D” option?

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Given: f(x) = x^2 + 4 and g(x) = 5x-2<br> Evaluate: f(g(3))

gogolik [260]

Answer:maybe try using google

Step-by-step explanation:

5 0

3 years ago

Given the relationship x2 + 3y2 =12, with y > 0 and dx, dt = 2 units/min., find the value of dy, dt at the instant y = 1 unit

matrenka [14]

$\bf x^2+3y^2=12\implies \stackrel{chain~rule}{2x\cfrac{dx}{dt}}+3 \stackrel{chain~rule}{\left(2y\cfrac{dy}{dt}\right)}=0
\\\\\\
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\implies 
6y\cfrac{dy}{dt}=-2x\cfrac{dx}{dt}\implies \cfrac{dy}{dt}=\cfrac{-2x\frac{dx}{dt}}{
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\\\\\\
\boxed{\cfrac{dy}{dt}=-\cfrac{x\frac{dx}{dt}}{3y}}\\\\
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\\\\\\
x^2=9\implies x=\sqrt{9}\implies x=3\\\\
-------------------------------\\\\
\begin{cases}
y=1\\
x=3\\
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7 0

3 years ago

Write an equivalent expression for 4(3a+7)+3 (2a+5) if a=5, is the the solution to both expressions the same

artcher [175]

No because thefirst one is equal to 91 and the other is equal to 15

3 0

4 years ago

Help me please thanks

Svetach [21]

Answer:

Step-by-step explanation:

To the nearest 10 is 300 - 298

To the nearest 100 is 500 - 549

To the nearest 100 is 700 - 698

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3 years ago

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3 years ago