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Mila [183]
3 years ago
5

Write the expression in terms of sine only sin 9x cos 9x

Mathematics
1 answer:
Usimov [2.4K]3 years ago
6 0
\sin 2\alpha= 2\sin \alpha\cos\alpha\quad\Rightarrow\quad\sin 9x\cos 9x=\frac{1}{2}\sin 18x
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5y+30 5 complete the factoring ...?
krek1111 [17]
Well, I don't really understand if it is 30 or 305 because of the spacing but I'll answer both. If it is 5y+305, just divide the whole equation by 5 and it will look like this (<u>5y+305)</u>  then the factor would be 5(y+61)<u>
</u>                   5 
If it is 5y+30 it would be just in the same process, Divide the equation by 5 and the result will be 5(y+6).
8 0
2 years ago
A carrot has 55 grams of sugar per serving. A banana has 15 grams of sugar per serving. Which statement is true?
GREYUIT [131]
For an equal number of servings, the bananas will have three times as much sugar.

To put it in perspective:
When we have one serving of each fruit, the carrot will give you 5 grams of sugar whereas banana will give you 15 grams. 

Hope this helps!
7 0
3 years ago
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borishaifa [10]

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7 0
3 years ago
An older person is 4 years older than 7 times the age of a younger person. The sum of their ages is 44. Find their ages
Fynjy0 [20]

Answer:

5 yr and 39 yr

Step-by-step explanation:

Let x = the age of the younger

then 7x + 4 = the age of the older

Now x + 7x + 4 = 44

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7x + 4 = 7(5) + 4 =  35 + 4 = 39

Check:  5 + 39 = 44

8 0
2 years ago
PROBLEM. 11.1: Rewrite These! Rewrite each quotient as a sum or a difference.
Jet001 [13]

Answer:

1. (4x-10)/2

   4x/2 - 10/2

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2. (1-50x)/-2

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3. 5(x + 10)/25

   (5x + 50)/25

   5x/25 + 50/25

   1/5 x + 2

4.(-0.2x + 5)/2​

   -0.2x/2 + 5/2

   -0.1x + 2.5

3 0
3 years ago
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