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mafiozo [28]
2 years ago
9

100serihttps://brainly.com/question/23752325#

Mathematics
2 answers:
d1i1m1o1n [39]2 years ago
7 0

Answer:

what?

Step-by-step explanation:

Ghella [55]2 years ago
3 0

wdym what you want me to do

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Can someone plzzz help me with this math practice paper plzzz I need help with all of the questions plzzzz I’ll give brainliest
Olin [163]
What question is it because I can’t see it
5 0
3 years ago
WILL MARK BRAINLIEST IF CORRECT❤️❤️<br> Simplify the expression -5+i/2i<br> Step by step
zhenek [66]

Answer:

For complex numbers,

a + bi and a - bi

they have the interesting property that if you add them you get the real number 2a

and if you multiply them , because of the difference of square pattern, you get a^2 - b^2 i^2

But since i^2 = -1, we end up with a real number as a product.

e.g. 6 - 5i and 6 + 5i are conjugates of each other

sum = 6-5i + 6+5i = 12

product = 36 - 25i^2

= 36 -(-25) = 61

Your question is even easier, since the denominator is a monomial instead of a binomial, so we just have to multiply by i/i

Also I believe, according to the answer, that you have a typo, and you meant

(-5+i)/(2i)

= (-5+i)/(2i) *i/i

= (-5i + i^2)/2i^2)

= (-5i +i^2)/-2

= (-5i - 1)/-2

= (1 + 5i)/2 or they way they have it: 1/2 + 5i/2

5 0
2 years ago
Read 2 more answers
Suppose the average of 15 consectutive numbers is 15. What is the average of the first five numbers of the set?
Marina86 [1]
15x15= 225

15x + 105= 225

15x= 225-105

15x= 120

X=8

X+ (x+1) + (x+2) + (x+3)…etc all the way up too +(x+14)=225

The first five numbers of the set: 8, 9, 10, 11, 12
7 0
1 year ago
in the diagram, the length of S is 2/3 the length of T. If S has an area of 368 cm squared, find the perimeter of the figure.
vivado [14]
920 cm squared. Divide S by 2 then multiply to find the value of T. If S = 368 then T = 552, 368 + 552 = 920.
8 0
3 years ago
Given a circle with the radius of 9.42ft. Find the circumference of this circle.
fredd [130]

Answer:

C≈59.19

Step-by-step explanation:

I hope this helps! ^^

☁️☁️☁️☁️

7 0
2 years ago
Read 2 more answers
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