How do u do this? HELPPPPPPPPPPPP

Mathematics

2 answers:

qaws [65]3 years ago

8 0

You would multiply the like (or similar) terms together.

2*4= 8

-5i*7i= -35i

The correct answer is "A".

I hope this helped you.

Brainliest answer is always appreciated.

adell [148]3 years ago

6 0

Your answer is a; since one set of numbers have an "i" next to them, you multiply those terms together. The normal terms multiply together, since they are "like terms," meaning that they don't have variables (or they have the same variable). therefore, you end up with 8-35i

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After the first term in a sequence, the ratio of each term to the preceding term is r. If the first term is a, what is the third

irinina [24]

Answer:

The 3rd term is

$ar^2$

Step-by-step explanation:

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$a_1=a$

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$a_n=a_1(r^{n-1})$

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7 0

3 years ago

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const2013 [10]

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8 0

4 years ago

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lisov135 [29]

<h2>Answer:</h2>

$\boxed{\frac{25}{2}(\sqrt{6}+\sqrt{2})+65}$

<h2>Explanation:</h2>

<em>The height of the rider from the ground after the Ferris wheel</em> equals <em>the starting point is 15 feet off the ground </em><em>plus </em><em>the radius of the Ferris wheel </em><em>plus </em><em>the opposite side of the triangle ΔABC </em>(See figure below).<em> </em>Hence our goal is to find this side. We have the angle $11\pi /2=165^{\circ}$ , therefore the angle ∠BAC = 165° - 90° = 75°. So this side can be found using trigonometry: