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SVETLANKA909090 [29]
3 years ago
8

3(3 + 3j) how do you solve this

Mathematics
2 answers:
LekaFEV [45]3 years ago
5 0
Hi! So first thing you need to do is distribute 3 through the parentheses! Then once you solve that, that is your simplified equation!

Please give brainliest!❤️
dem82 [27]3 years ago
5 0

Answer: 9j+9

Step-by-step explanation:

3(3+3j)

(3*3j)+(3*3)

9j+9

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18 = 3 • y helppppppppppppppp
nadya68 [22]

Answer:y=6 3*6=18

Step-by-step explanation:+ 6 IS Correct

4 0
3 years ago
Use the following information to determine cos(2x). <br><br> cos(x)=3/5 and sin(x) is negative
kari74 [83]

Hey !!!

sinx = 3/5 ( given )

We know a formula of cos2x = ( 1 - 2sin²x)

putting the value of sinx on value of cos2x = ( 1 - 2sin²x)

hence,

we get

cos2x = ( 1 - 2sin²x )

=> [1 - 2 × ( 3/5 )² ]

=> [ 1 - 2 × 9 /25 )

=> [ 25 - 18 /25 ]

=> 7/25 Answer ✔

4 0
2 years ago
How do you find the area of a rectangle?
Rama09 [41]
Think of a door in a shape of the rectangle measure the. Length and wide multiply the numbers to get area to paint the door minus doorknobs or window.
Formula
Area=length X Width
5 0
3 years ago
Write the fraction in simplest form <br><br> 7/28
Orlov [11]

Answer:

1/4

Step-by-step explanation:

7 goes into 7 once

7 goes into 28 four times

1/4

5 0
3 years ago
Read 2 more answers
A blimp is flying at a speed of 40mph and going in a direction of 80 degrees. After 3 hours of flying it turns and travels 1 hou
kykrilka [37]

Bearing is a topic that can be used to <u>locate</u> the <em>position</em> of an object at a given time. Therefore, the blimp is <em>80 m</em> far away from its <u>starting</u> point. And in the<em> North-East </em>direction.

The <u>speed</u> of an object relates the <em>distance</em> it covers to the <u>time taken</u> to cover the said distance.

i.e speed = \frac{distance}{time taken}

⇒ distance = speed x time taken

In the given question, the <u>initial</u> distance covered can be determined as;

distance = 40 mph x 3 h

              = 120 m

The<u> final </u>distance covered can be determined as;

distance = 40 mph x 1 h

              = 40 m

Let the <u>distance</u> from its <em>starting</em> point to its <em>fina</em>l location be represented by x.

Thus applying the<em> Cosine rule</em>, we have:

c^{2} = a^{2} + b^{2} - 2abCos C

x^{2} = 120^{2} + 40^{2} - 2(120 x 40) Cos 90

   = 14400 + 1600 - 9600

x^{2} = 16000 - 9600

   = 6400

x = \sqrt{6400}

 = 80

x = 80 m

Therefore, the <u>distance</u> of the blimp from its <em>starting</em> point to its <em>final</em> destination is <u>80 m</u>.

For more clarifications on bearings, visit: brainly.com/question/22979472

#SPJ1

6 0
2 years ago
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