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olya-2409 [2.1K]
3 years ago
7

Which of the following is an example of the additive identity? a +(-a) = 0 a+0=0 a+0= a

Mathematics
1 answer:
UNO [17]3 years ago
4 0

Answer:

a+0= a

Step-by-step explanation:

we know that

The <u>additive identity</u> property says that if you add a real number to zero or add zero to a real number, then you get the same real number back

so

Let

a -----> a real number

a+0=0+a=a

therefore

a+0= a

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A hobby store marks up remote-controlled cars 25%. The original
aksik [14]
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Explanation:
1. Turn 25% into a decimal by removing the “%” and placing a “0.” in front of it. (0.25)
2. Multiply the decimal (0.25) by the original price of the car (30). (0.25x30=7.5)
3. Add 7.5 to 30 to get the answer. (7.5+30=37.5=$37.50)
7 0
3 years ago
WILL GIVE BRAINLIEST 6x-8y=-16 write in slope-intercept form. . . pls step by step or no brainliest
geniusboy [140]

Answer:

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Step-by-step explanation:

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8 0
3 years ago
What is the ratio for sin B?
Y_Kistochka [10]

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3 0
3 years ago
2<br> (<br> 3<br> r<br> +<br> 4<br> )<br> −<br> 3<br> (<br> r<br> +<br> 1<br> )<br> =<br> 11
Slav-nsk [51]

Answer:

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8 0
3 years ago
Prove the identity sin4x=2sin2xcos2x
Musya8 [376]
There is a trig identity called the sum of 2 angles for sin its<span>
sin(a+b)=sin(a)cos(b)+cos(a)(sin(b)
</span>
You will need to use it. So in your question split the 4x in 2 equal parts 2x and 2x
 <span>
</span><span>sin(4x)=sin(2x+2x)

</span>Now using the expansion above you will get

<span>sin(2x+2x)=sin(2x)×cos(2x)+cos(2x)×sin(2x)

</span>And it will simplify to 

<span><span>2sin(2x)cos(2x)

I hope this helps you! Good luck :)</span></span>
5 0
3 years ago
Read 2 more answers
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