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myrzilka [38]
3 years ago
15

9+10 please tell me.

Mathematics
2 answers:
Dima020 [189]3 years ago
8 0
The answer would be 19.
natita [175]3 years ago
5 0
9+10 equals 19. Have a wonderful day :)
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___sides of equal length
emmainna [20.7K]

Answer:

__2_sides of equal length

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__0_right angle(s)

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Step-by-step explanation:

if this is the right triangle the longest side will be √162≈ 12.7

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6 0
3 years ago
Pls tell the value of Y pls pls
frosja888 [35]

4 × y - y = 36

4y - y = 36

Combining 4y and -y to get 3y

3y = 36

Dividing both sides by 3

y = 36/3

y = 12.

6 0
3 years ago
Read 2 more answers
If tanA+sinA=m and tanA-sinA=n.prove that m^2-n^2=4√mn
mash [69]

Let a=\tan A and b=\sin A. Then

m^2-n^2=(a+b)^2-(a-b)^2=(a^2+2ab+b^2)-(a^2-2ab+b^2)=4ab

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and

mn=(a+b)(a-b)=a^2-b^2

\implies4\sqrt{mn}=4\sqrt{\tan^2A-\sin^2A}

The expression under the square root can be rewritten as

\tan^2A-\sin^2A=\dfrac{\sin^2A}{\cos^2A}-\sin^2A=\sin^2A\left(\dfrac1{\cos^2A}-1\right)=\sin^2A(\sec^2A-1)

Recall that

\sin^2A+\cos^2A=1\implies\tan^2A+1=\sec^2A

so that

\tan^2A-\sin^2A=\sin^2A\tan^2A

and assuming \sin A>0 and \tan A>0, we end up with

4\sqrt{\tan^2A-\sin^2A}=4\tan A\sin A

so that

m^2-n^2=4\sqrt{mn}

as required.

5 0
3 years ago
V*4x= How do you simify this equation
attashe74 [19]
It's not time to try and simplify it until you HAVE an equation. You won't have an equation until you write down what. V*4x is equal to.
7 0
3 years ago
How many solutions does the equation 4x + 8 = −2 − 2 + 5x have? (5 points) Two One None Infinitely many
djverab [1.8K]

Answer:

just one solution

Step-by-step explanation:

4x + 8 = −2 − 2 + 5x

4x - 5x = -2 - 2 - 8

x = 12

6 0
3 years ago
Read 2 more answers
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