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Ilya [14]
3 years ago
14

What is the answer to this question, 2/5×6/7?

Mathematics
1 answer:
Jobisdone [24]3 years ago
6 0

Answer:

12/35

Step-by-step explanation:


Multiply both numerators and denominators.


2/5 * 6/7


=12/35

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8(s+3)=72 i need help it is due tomorrow
Montano1993 [528]

Answer:

s = 6

Step-by-step explanation:

8(s+3) = 72

Expand the brackets out:

(8 x s) + (8 x 3) = 72

8s + 24 = 72

Now you get rid of 24 on the left, by taking away 24. But you also have to do the same on the right side so that both sides are equal:

8s + 24 = 72

left(-24) = right (-24)

So that leaves you with:

8s = 48

Now divide both sides by 8 to make them equal and to get s on its own:

8s = 72

left(/8) = right (/8)

Therfore:

s = 6


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amm1812
A and D are correct.
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torisob [31]

Answer:

1and 3 are not a function 2 and 4 are a function 6 not enough

Step-by-step explanation:

4 0
3 years ago
Use a double angle or half angle identity to find the exact value of each expression
STatiana [176]

Answer:

Step-by-step explanation:

There are 2 very distinct and important things that we need to know before completing the problem. First is that we are given that the cos of an angle is 1/3 (adjacent/hypotenuse) and it is in the first quadrant. We also need to know that the identity for sin2θ = 2sinθcosθ.

We already know cos θ = 1/3, so we need now find the sin θ. The sin ratio is the side opposite the angle over the hypotenuse, and the side we are missing is the side opposite the angle (we do not need to know the angle; it's irrelevant). Set up a right triangle in the first quadrant and label the base with a 1 (because the base is the side adjacent to the angle), and the hypotenuse with a 3. Find the third side using Pythagorean's Theorem:

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Now we have everything we need to fill in the identity for sin2θ:

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2sin\theta cos\theta=\frac{4\sqrt{2} }{9}

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