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IgorLugansk [536]
2 years ago
7

Quickest answer gets BRAINLIEST!!!!

Mathematics
2 answers:
Alenkinab [10]2 years ago
6 0

▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪

let's assume the volume of object be x, now According to given data :

  • x + 20 = 35

  • x = 35 - 20

  • x = 15 \:  \: ml

hence , volume of the object is 15 ml

saw5 [17]2 years ago
3 0

Answer:

I would say about 15 mL/g/wutever the unit of weight is

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Prove the following identity :<br>Sin α . Cos α .<br> Tan α =  (1 – Cos<br> α)  (1 + Cos<br> α)
Umnica [9.8K]
Let's work on the left side first. And remember that
the<u> tangent</u> is the same as <u>sin/cos</u>.

sin(a) cos(a) tan(a)

Substitute for the tangent:

[ sin(a) cos(a) ] [ sin(a)/cos(a) ]

Cancel the cos(a) from the top and bottom, and you're left with

[ sin(a) ] . . . . . [ sin(a) ] which is [ <u>sin²(a)</u> ]  That's the <u>left side</u>.

Now, work on the right side:

[ 1 - cos(a) ] [ 1 + cos(a) ]

Multiply that all out, using FOIL:

[ 1 + cos(a) - cos(a) - cos²(a) ]

= [ <u>1 - cos²(a)</u> ] That's the <u>right side</u>.

Do you remember that for any angle, sin²(b) + cos²(b) = 1  ?
Subtract cos²(b) from each side, and you have sin²(b) = 1 - cos²(b) for any angle.

So, on the <u>right side</u>, you could write [ <u>sin²(a)</u> ] .

Now look back about 9 lines, and compare that to the result we got for the <u>left side</u> .

They look quite similar. In fact, they're identical. And so the identity is proven.

Whew !





4 0
3 years ago
Read 2 more answers
Need help ASAP !!!!!!!!!!!!!!!!
klemol [59]

Answer:

it blury put a better one pls

Step-by-step explanation:

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I have no idea how to do this, can someone please help?
Sveta_85 [38]
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4 0
3 years ago
Brainliest for a math answer
erastovalidia [21]
Question 5- is 9
question 6- is 9
question 7-is 4
question 8-is 21
Question 9-is 2 
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Tell me if your right ;) 


5 0
3 years ago
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