2 years ago

ASTU~ASGF Find the missing length.

Mathematics

1 answer:

Galina-37 [17]2 years ago

7 0

Answer: 105 i think

Step-by-step explanation:

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Solve using the elimination method 0.3x-0.2y=4 0.2x+0.5y=-21/23

Aneli [31]

Do this and then simplify the result

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3 years ago

6 + 12 = 25 - Which value makes the number sentence true? A. 6 B. 7 C. 12 D. 18

max2010maxim [7]

Answer:

Step-by-step explanation:

6+12=18

25-7=18

7 makes the sentance true.

4 0

2 years ago

A girl weighs 5/8 as much as her brother does. If the girl weighs 110 lb, how much does her brother weigh?

mamaluj [8]

176 is the brothers weight.

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3 years ago

Read 2 more answers

Prove that if sin (2 + y) = 3 sin (x - y), then tan x = 2 tany.

nignag [31]

Answer:

The proof is given below.

Step-by-step explanation:

Given: ( the correct question and ans is as follow )

sin (x + y) = 3sin ( x - y)

To Prove

tan x = 2 tan y

Proof:

$\sin (x+y) = 3\sin (x-y)$

Using the identities

$\sin (A+B) = \sin A.\cos B + \cos A.\sin B\\and\\\sin (A-B) = \sin A.\cos B - \cos A.\sin B\\$

we get

$\sin x.\cos y + \cos x.\sin y = 3(\sin x.\cos y - \cos x.\sin y)\\\sin x.\cos y + \cos x.\sin y = 3\sin x.\cos y - 3\cos x.\sin y$

Now we will take sin x . cos y to the left hand side and cos x . sin y to the right hand side,we get

$3\sin x.\cos y - \sin x.\cos y = 3\cos x.\sin y +\cos x.\sin y\\2\sin x.\cos y =4\cos x.\sin y\\\sin x.\cos y =2\cos x.\sin y \ \textrm{4 divide by 2}\\ \frac{\sin x}{\cos x} =2\times \frac{\sin y}{\cos y} \\\textrm{we know identity }\\\frac{\sin x}{\cos x} = \tan x\\\frac{\sin y}{\cos y} = \tan y\\\therefore \tan x = 2\tan y\ ...............{PROVED}$

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3 years ago

How are the graphs of f(x)=square foot 16^x and g(x)=3 square root 64^x related

FinnZ [79.3K]

Both functions can be expressed in the form of √2ˣ

f(x)=√(2ˣ)⁴ = √16ˣ

g(x)= √(2ˣ)⁶ = √64ˣ <-- these can be further broken down if required

Hope I helped :)

5 0

3 years ago