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4 years ago

7

What is 5x = 2x + 6 tell me the answer please

1 answer:

andrew11 [14]4 years ago

6 0

Answer:

Two.

Step-by-step explanation:

You have to combine like terms. When doing this, you subtract 2x from both sides, getting 3x = 6. Now, you have to divide by 3 on both sides, getting x = 2. Ask me if you need further help!

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The base of a pyramid is a square whose perimeter is 936936 m. what is the length of each side of this square?

djverab [1.8K]

936936 is the perimeter and perimeter of a square is 4 times the length of one of the sides. therefore, you divide 936936 by 4 and get your answer, which is 234234.

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4 years ago

Prove :<br>sin²θ + cos²θ = 1<br><br><br>thankyou ~

Gnom [1K]

Answer:

See below

Step-by-step explanation:

Here we need to prove that ,

$\sf\longrightarrow sin^2\theta + cos^2\theta = 1$

Imagine a right angled triangle with one of its acute angle as $\theta$ .

The side opposite to this angle will be perpendicular .
Also we know that ,

$\sf\longrightarrow sin\theta =\dfrac{p}{h} \\$

$\sf\longrightarrow cos\theta =\dfrac{b}{h}$

And by Pythagoras theorem ,

$\sf\longrightarrow h^2 = p^2+b^2 \dots (i)$

Where the symbols have their usual meaning.

Now , taking LHS ,

$\sf\longrightarrow sin^2\theta +cos^2\theta$

Substituting the respective values,

$\sf\longrightarrow \bigg(\dfrac{p}{h}\bigg)^2+\bigg(\dfrac{b}{h}\bigg)^2\\$

$\sf\longrightarrow \dfrac{p^2}{h^2}+\dfrac{b^2}{h^2}\\$

$\sf\longrightarrow \dfrac{p^2+b^2}{h^2}$

From equation (i) ,

$\sf\longrightarrow\cancel{ \dfrac{h^2}{h^2}}\\$

$\sf\longrightarrow \bf 1 = RHS$

Since LHS = RHS ,

Hence Proved !

I hope this helps.

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2 years ago

A fair coin is flipped four times. Use a tree diagram to find the probability of observing exactly two heads.

Svetllana [295]

Answer:

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Step-by-step explanation:

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4 years ago

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astra-53 [7]

6v-5/8=7/8
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v=12/8÷6
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3 years ago

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Alexus [3.1K]

Answer:

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Step-by-step explanation:

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3 years ago