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3 years ago

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Mathematics

2 answers:

xz_007 [3.2K]3 years ago

7 0

Answer:

b. cosx + 6 sinx

Step-by-step explanation:

$\frac{d}{dx} ( sinx - 6 cos \: x) \\ \\ = \frac{d}{dx} sinx - 6\frac{d}{dx} cos \: x \\ \\ = cos \: x - 6( - sin \: x) \\ \\ = cos \: x + 6 \: sin \: x$

pochemuha3 years ago

4 0

The answer is B cosx + 6 sinx

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A/2.8 x 2.8 "A over 2.8 times 2.8"

Jobisdone [24]

A/2.8 • 2.8
Division and multiplication are opposite of each other, meaning they cancel out.
This means that a/2.8 • 2.8 is a.
No matter what a is equal to, the answer is a itself.
Once a is divided by 2.8, it is then multiplied by 2.8, bringing us back to the original value of a.

Answer:
a/2.8 • 2.8 = a

Hope this helps!

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3 years ago

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3 years ago

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Tresset [83]

Answer:

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Step-by-step explanation:

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3 years ago

If a = 12 and 120% of a is equal to 80\% of bthen what is a + b ?

Novosadov [1.4K]

Answer:

The answer is 30

Step-by-step explanation:

First you have to find 120% of a (12).

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$14.4 \times 100\% = 80\% \times x$

This is the same as saying;

$14.4 \times 1 = x \times \frac{4}{5}$

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2 years ago

Please and thank you!

PIT_PIT [208]

Answer:

Step-by-step explanation:

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3 years ago