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GuDViN [60]
3 years ago
11

Simplify the following(5+4i)+(3-2i)​

Mathematics
2 answers:
garik1379 [7]3 years ago
6 0
5+4i+3-2i= 8+2i
the answer to the question
otez555 [7]3 years ago
6 0

Simplify : ( 5 + 4i ) + ( 3 - 2i ) = ?

Simplify by combining the real and imaginary parts of each expression.

= 8 + 2i

Hope this helps,

Davinia.

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Howard is designing a chair swing ride. The swing ropes are 4 44 meters long, and in full swing they tilt in an angle of 2 3 ∘ 2
qaws [65]

Question:

Howard is designing a chair swing ride. The swing ropes are 4 meters long, and in full swing they tilt in an angle of 23°. Howard wants the chairs to be 3.5 meters above the ground in full swing. How tall should the pole of the swing ride be? Round your final answer to the nearest hundredth.

Answer:

7.18 meters

Step-by-step explanation:

Given:

Length of rope, L = 4 m

Angle = 23°

Height of chair, H= 3.5 m

In this question, we are to asked to find the height of the pole of the swing ride.

Let X represent the height of the pole of the swing ride.

Let's first find the length of pole from the top of the swing ride. Thus, we have:

cos \theta = \frac{h}{L}

Substituting figures, we have:

cos(23) = \frac{h}{4}

Let's make h subject of the formula.

h = 4cos(23) = 3.68

The length of pole from the top of the swing ride is 3.68 meters

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X = h + H

X = 3.68 + 3.5

X = 7.18

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3 0
3 years ago
These are samples of student work. Both students got the same answer, but did the work differently. Which student did the work c
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Read 2 more answers
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Scilla [17]

The answer is B.

Hope this helps!

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