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3 years ago

Can someone please help me with this

Mathematics

1 answer:

IRISSAK [1]3 years ago

5 0

Answer:

Step-by-step explanation:

times 15 and 6 maybe

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Give the degree and classify the polynomial by the number of terms- 3

Alexxx [7]

The degree<span> of the </span>polynomial<span> is found by looking at the </span>term<span> with the highest exponent on its variable(s). Examples: 5x</span>2-2x+1<span> The highest exponent is the 2 so this is a 2</span>nd degree<span> trinomial. 3x</span>4+4x2The highest exponent is the 4 so this is a 4thdegree binomial<span>.</span>

4 0

3 years ago

Read 2 more answers

In a fish tank , 8/11 of the fish have a red stripe on them. If 16 of the fish have red stripes, how man total fish are in the t

Basile [38]

Answer:

Step-by-step explanation:

8/11 is equal to x/20

Cross multiply

8 times 16 and 11 times x

128=11x

Divide

Then you get 11/128

Divide and simplify!!

6 0

3 years ago

Find dy/dx for y= x^3 ln (cot x)

ICE Princess25 [194]

<h3>Answer</h3>

$\dfrac{dy}{dx} = 3x^2 \ln(\cot x)-x^3 \csc(x)\sec(x)$

<h3>Explanation</h3>

By the product rule $(d/dx)(f(x)g(x)) = f(x)g'(x) + g(x)f'(x)$ , we have

$\begin{aligned}\frac{dy}{dx} &= \left(x^3 \ln (\cot x) \right)' \\&= x^3\big(\ln (\cot x)\big)' + \ln (\cot x) \cdot \left(x^3\right)' \end{aligned}$

By the chain rule:

$\begin{aligned}\big(\ln (\cot x)\big)' &= \dfrac{1}{\cot x} \cdot (\cot x)' \\ &= \dfrac{1}{\cot x} \cdot -\csc^2 x\\&= -\tan (x) \csc^2(x) \\&= - \frac{\sin x}{\cos x} \cdot \frac{1}{\sin^2 x} = - \frac{1}{\cos x} \cdot \frac{1}{\sin x} \\&= -\csc(x)\sec(x)\end{aligned}$

By the power rule:

$(x^3)' = 3x^2$

thus

$\begin{aligned}\frac{dy}{dx} &= x^3\big(\ln (\cot x)\big)' + \ln (\cot x) \cdot \left(x^3\right)' \\&= x^3\big( -\csc(x)\sec(x) \big) + \ln(\cot x) \cdot (3x^2) \\&= -x^3 \csc(x)\sec(x) + 3x^2 \ln(\cot x) \\&= 3x^2 \ln(\cot x)-x^3 \csc(x)\sec(x)\end{aligned}$

Nothing to do to simplify any further, other than factoring out $x^2$ .

4 0

4 years ago

F(x) = x^2 What is g(x)?

neonofarm [45]

graph becomes slimmer, so definitely be multipled 1/2

7 0

3 years ago

Decide if the situation involves a permutation... anyone?

ehidna [41]

Each medal is different and is handed out depending on the outcome of the race/order of the racers, so we're counting the number of permutations. 4 medals are given to 4 runners, so there are

$4!=4\cdot3\cdot2\cdot1=24$

possible ways to do it.

4 0

3 years ago