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3 years ago

What is the 15th term of the sequence an = -2n(n 3)?

Mathematics

1 answer:

Hoochie [10]3 years ago

5 0

An = -2n(n + 3)
a(15) = -2(15)(15 + 3) = -30(18) = -540

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What is the derivative of the following function? f(x) = 4x^6/cos^5(x)

KIM [24]

Answer:

$f'(x) = \frac{24x^{5} \cos x + 20x^{6}\sin x}{\cos^{6}x }$

Step-by-step explanation:

We have to find the derivative of the following function:

$f(x) = \frac{4x^{6} }{\cos^{5} x }$

Now, differentiating both sides with respect to x we get,

$f'(x) = \frac{\cos^{5}x (24x^{5}) - 4x^{6}(5\cos^{4}x )(- \sin x)}{(\cos^{5}x )^{2}}$

⇒ $f'(x) = \frac{ 24x^{5} \cos x + 20 x^{6}\sin x}{\cos^{6}x }$ (Answer)

{Since, we know that, $\frac{d(mx^{n} )}{dx} = m \times n x^{(n - 1)}$ and $\frac{d(\cos^{n} x)}{dx} = n \cos^{(n - 1)} x(- \sin x)$ }

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3 years ago

What number is 80% of 80?

gtnhenbr [62]

Answer:

64 IS THE ANSWER........

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3 years ago

The winner of a gymnastics competition scored a total of 22.1 points. She won by 0.676 points.

weqwewe [10]

Answer:

21.424

Step-by-step explanation:

22.1 - 0.676 = 21.424

im not sure if it is correct but i think its like this

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3 years ago

Simplify Will mark brainliest, please show work if possible

Reil [10]

The answer for this question is 8/1

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3 years ago

Read 2 more answers

PLS HELP ME ASAP FOR 1 and 2 (SHOW WORK!) LOTS OF POINTS

netineya [11]

Well, number 1 is A, or p = 6t. This is because the number of points is equal to the number of touchdowns times six. *6 = (6)(1) *12 = (6)(2) *18 = (6)(3), etc

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3 years ago