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dolphi86 [110]
3 years ago
7

Sinxcosy = 1/2 (sin(x+y)+cos (x-y))

Mathematics
1 answer:
sasho [114]3 years ago
8 0
<span>(1/2) [SIN(X-Y)-SIN(X+Y)]= COS(X)SIN(Y)</span>
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Find the Greatest Common Factor of Two or More Expressions
-Dominant- [34]

Answer:

The GCF is 2.

Step-by-step explanation:

In my opinion, one of the easier ways to find the greatest common factor of two numbers is to get the prime factors of both and multiply the common ones. The prime factorization of 8 is 2*2*2, and the prime factorization of 162 is 2*3*3 (you can make a factor tree for both of these numbers to verify this). The only common prime factor for both of these numbers is 2, which means the greatest common factor of 8 and 18 is 2.

8 0
2 years ago
In the diagram below, x is a whole number. what is the smallest possible value for x?
lesya692 [45]

Answer:

The smallest possible value for x is 9\ units

Step-by-step explanation:

we know that

The <u>Triangle Inequality Theorem</u>. states that the sum of the lengths of any two sides of a triangle is greater than the length of the third side

so

x+x>17\\2x>17\\x>8.5\ units

The value of x must be greater than  8.5\ units

so

If x must be a whole number

therefore

The smallest possible value for x is 9\ units

3 0
3 years ago
1,000.00 at 4.5% interest for 2 years
siniylev [52]
Each year we add 4.5% interest.
4.5% as a decimal is 0.045.
We multiply by 1.045 to add this interest.
(not 0.045, this would just be the interest and wouldn't keep the whole)

To start: $1,000
Multiply by 1.045 for the first year.
Now we have $1,045.
Multiply by 1.045 again for the second year.
Now we're at 1092.025.
We need to round up to the nearest cent...$1,092.03
4 0
3 years ago
Light travels at about 3000 000 000 meter per second what is this speed in kilometers per hour
faltersainse [42]
3000000 Kilometers i believe
6 0
3 years ago
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2y+3=-2x written in slope intercept form
Alex777 [14]
Y=-x-3/2
That's it written in slope intercept form
3 0
3 years ago
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