3 years ago

Which word could be used to describe 4x in the expression 4x+7

Mathematics

1 answer:

Svetach [21]3 years ago

8 0

The product of 4 and x

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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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4 years ago

A right triangle has a side length of 12 m and a side length of 15 m. Find the length of the missing hypotenuse. Rounded to the

kolezko [41]

Answer:

19.2

Step-by-step explanation:

12 squared + 15 squared= C squared

144 + 225 = C squared

369 = C squared

Do square root of 369, which is

19.2

7 0

3 years ago

elijah eats at his favorite restaurant 4 times a week. He buys a sandwich for $8 and a drink for $2.Write an equation that can b

mario62 [17]

If he goes there 4 times a week then $8 plus $2 equals $10 and times $10 by 4 times a week equals $40

So Elijah spends $40 a week at the restaurant

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3 years ago

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Solve the equation: 2y+4^2=64

JulsSmile [24]

Answer:

$2y + {4}^{2} = 64 \\ 2y + 16 = 64 \\ 2y = 64 - 16 \\ 2y = 48 \\ \\ y = \frac{48}{2} \\ \\ y = 24$

I hope I helped you^_^

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3 years ago

What is the radius of the circle: (x+1)^2+(y-12)^2=25

lidiya [134]

Answer:

radius = 5

Step-by-step explanation:

The equation of a circle in standard form is

(x - h)² + (y - k)² = r²

where (h, k) are the coordinates of the centre and r is the radius

Here r² = 25 ( take the square root of both sides )

r = $\sqrt{25}$ = 5

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3 years ago

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