3 years ago

Which is another way to write 7 × 10 = 70? A. 70 = 2 × 7 × 5 B. 70 = 2 × 7 × 10 C. 70 = 3 × 5 × 5 D. 70 = 3 × 4 × 10

Mathematics

2 answers:

Vesna [10]3 years ago

8 0

The answer is a.
Hope this helped :)

Art [367]3 years ago

6 0

The answer is A it is right

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2 years ago

Find the x-coordinates where f ' (x)=0 for f(x)=2x+sin(4x) in the interval [0, pi]

MAVERICK [17]

Answer:

The x-coordinate is \dfrac{\pi}{6}[/tex].

Step-by-step explanation:

We are given a function f(x) as:

$f(x)=2x+\sin (4x)$

Now on differentiating both side with respect to x we get that:

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When $f'(x)=0$

this means that $2+4\cos (4x)=0\\\\4\cos (4x)=-2\\\\\cos(4x)=\dfrac{-1}{2}$

Hence, cosine function takes the negative value in second and third quadrant but we have to only find the value in the interval $[0,\pi]$ .

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so on comparing our equation with equation (1) we obtain:

$4x=\dfrac{2\pi}{3}\\\\x=\dfrac{\pi}{6}$

Hence, the x-coordinates where $f'(x)=0$ for $f(x)=2x+\sin(4x)$ is $\dfrac{\pi}{6}$ .

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3 years ago

Does the following infinite series converge or diverge? 1/3+2/9+4/27+8/81

Norma-Jean [14]

Answer:

converge

Step-by-step explanation:

The ratio that you multiply by to get the next term is 2/3, which is less than 1, so the geometric series converges by the Geometric Series Test.

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2 years ago

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$C=\sqrt{E/M}$

enjoy the rest of your day!

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3 years ago

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