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shutvik [7]
3 years ago
13

Explain 2 ways to evaluate 15(90-3)

Mathematics
2 answers:
Elena L [17]3 years ago
8 0
Distribute the 15 first or subtract inside the parentheses first and then multiply
pychu [463]3 years ago
5 0
First Way:

15(90-3)

=15(10*9-3)

=15*10*9-15*3

=150*9-45

=1,350-45

=1,305

-----------------

Second Way:

15(90-3)

=15(87)

=15(80+7)

=15(10*8+7)

=15*10*8+15*7

=150*8+(10+5)*7

=1,200+70+35

=1,200+105

=1,305
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8 hundred thousands and 1 thousand.
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What is 2,789 divided by 36
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Find the general solution of the given differential equation. cos^2(x)sin(x)dy/dx+(cos^3(x))y=1 g
eimsori [14]

If the given differential equation is

\cos^2(x) \sin(x) \dfrac{dy}{dx} + \cos^3(x) y = 1

then multiply both sides by \frac1{\cos^2(x)} :

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The left side is the derivative of a product,

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Integrate both sides with respect to x, recalling that \frac{d}{dx}\tan(x) = \sec^2(x) :

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7 0
1 year ago
Easy, need help, thanks.
TEA [102]

Answer:

<em>A. 35 deg</em>

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5 0
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Find the measure of angle K.
BabaBlast [244]
Every triangle have three angles that add up to 180°. With this information, we can find out the missing angle.

The sum of three angles should add up to 180°. 

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Where k is the missing angle.

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159° + K = 180°
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K = 21°

So, the missing length is 21°.
7 0
2 years ago
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