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wel
3 years ago
14

How was this answered? i don't know how, pls. help​

Mathematics
1 answer:
ratelena [41]3 years ago
3 0

Answer:

see explanation

Step-by-step explanation:

Using \sqrt{-1} = i, then i² = (\sqrt{-1} )² = - 1

and i³ = i² × i = - 1 × i = - i

also

i^{4} = i² × i² = - 1 × - 1 = 1

We can surmise that i raised to any multiple of 4 will equal 1

Given

i^{35} ( note 35 = 32 + 3 and 32 is a multiple of 4 ), thus

= i^{32+3}

= 1 × i³ = - i

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Hong made $105 for 5 hours of work. At the same rate, how much would he make for 11 hours of work? I need help plz thank you​
cupoosta [38]
105/5 = $21 per hour
21 * 11 = $231 for 11 hours
7 0
3 years ago
Factorize<br> ху<br> + 3x +3y<br> + 18
noname [10]

Answer:

(x+6)(y+3)

Step-by-step explanation:

  1. xy + 3x + 6y + 18
  2. x(y + 3) + 6(y+3)
  3. <u>(</u><u>x</u><u>+</u><u>6</u><u>)</u><u>(</u><u>y</u><u>+</u><u>3</u><u>)</u>
3 0
2 years ago
Brainly plz help only three questions and don't answer for point kinda rude
Ivan

Answer:

Step-by-step explanation:

7 0
2 years ago
A museum curator is hanging 7 paintings in a row for an exhibit. There are 4 Renaissance paintings and 3 Baroque paintings. From
Marina CMI [18]

Answer:

144 ways

Step-by-step explanation:

Number of paintings = 7

Renaissance = 4

Baroque = 3

We are hanging from left to right and we will first hang Renaissance painting before baroque painting.

For Renaissance we have 4! Ways of doing so. 4 x3x2x1 = 24

For baroque we have 3! Ways of doing so. 3x2x1 = 6

We have 4!ways x 3!ways

= (4x3x2x1) * (3x2x1) ways

= 144 ways

Therefore we have 144 ways to hang the painting.

6 0
3 years ago
2 ALGEBRA 1 QUESTIONS HELP!!!
nikklg [1K]
4)
3x-2y=10
5x+y=4

We solve this system of equation by elimination method.
   3x-2y=10
2(5x+y=4)
------------------------
13x=18

Answer: A)  13x=18

5)
slope-intercept form:
y=mx+b
y=f(x)

m=slope
b=y-intercept

1) we calculate the slope:
we choose any two points of this table:
For example: (2,2) and (3,4)

Given two points (x₁,y₁) and (x₂,y₂) the slope of the line that passes through these points will be:
m=(y₂-y₁)/(x₂-x₁)
In this case:
m=(4-2)/(3-2)=2

2) we compute "b";
we choose an any point of this talbe:
For example: (4,6), and we substitute "x" for "4" and "y" for "6" in the next equation:
y=2x+b  
6=2(4)+b
b=6-8
b=-2

3) we build the function that it belong this table:
m=2
b=-2
f(x)=mx+b
f(x)=2x-2

Answer: B) f(x)=2x-2

3 0
3 years ago
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