6. Which formula is 8 less than twice a number? q=2w-8

Mathematics

1 answer:

hammer [34]3 years ago

7 0

Answer:

Yes that is correct

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If a certain coin is flipped, the probability that the coin will land heads up is \small \frac{1}{2}. If the coin is flipped 5 t

Fittoniya [83]

Answer:

The probability of the heads up on the first three flips and not on the last two flips will be 1/32.

Step-by-step explanation:

As, the probability of head up when one time coin is flipped is 1/2. And it is said in the question that you must get heads in the first three flips.

So, for the first three flips the probability is = (1/2)^3 = 1/8

And for the last two flips you want to get not heads up.

Then, the probability is = (1/2)^2 = 1/4

Hence, your overall probability will be = 1/8 × 1/4 = 1/32 .

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3 years ago

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shepuryov [24]

Answer:c is your answer

Step-by-step explanation:90+90+38=218 then 360-218= 142

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4 years ago

What is 52divided by 8

scoray [572]

The answer to 52\8 is 6.5.

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3 years ago

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There are 5 pink marbles and 4 orange marbles in a bag. Madison will randomly pick two marbles out of the bag without replacing

scZoUnD [109]

In order to find the probability of both marbles being drawn being the same colour, the probability of each marble being drawn has to first be found and then multiply both probability to find the probability of two orange marble being drawn consecutively.

Now, the probability of drawing an orange marble = ⁴/₉

since a marble has been removed and wasn't replaced then there are now 5 pink + 3 orange marbles (8 marbles in total) in the bag.

∴ the probability of the second marble drawn being orange = ³/₈
⇒ the probability of two orange marbles in a row without the first being replaced = ⁴/₉ × ³/₈ = ¹/₆

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3 years ago

Sin(x+2y)=cos(2x -y)

patriot [66]

$~~~~~~~\sin (x+2y) = \cos (2x-y)\\\\\\\implies \dfrac{d}{dx} \sin(x+2y) = \dfrac{d}{dx} \cos (2x-y)\\\\\\\implies \cos(x+2y)\dfrac{d}{dx}(x+2y) = -\sin(2x-y) \dfrac{d}{dx}(2x-y)~~~~~~~~~~~;[\text{Chain rule}]\\\\\\\implies \cos(x+2y) \left(1+2 \dfrac{dy}{dx}\right) = -\sin(2x-y)\left(2-\dfrac{dy}{dx} \right)\\\\\\\implies \cos(x+2y) + 2\cos(x+2y)\dfrac{dy}{dx} = -2\sin(2x-y)+\sin(2x-y) \dfrac{dy}{dx}\\ \\\\$

$\implies \sin(2x-y) \dfrac{dy}{dx} - 2\cos(x+2y) \dfrac{dy}{dx} = \cos(x+2y) + 2\sin (2x-y)\\\\\\\implies \left[\sin(2x-y) -2\cos(x+2y) \right] \dfrac{dy}{dx} = \cos(x+2y) + 2\sin (2x-y)\\\\\\\implies \dfrac{dy}{dx} = \dfrac{\cos(x+2y) + 2\sin (2x-y)}{\sin(2x-y) -2\cos(x+2y) }$

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2 years ago

6. Which formula is 8 less than twice a number? q=2w-8​

6. Which formula is 8 less than twice a number? q=2w-8