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Andrew [12]
3 years ago
10

Pls help i rlly help pls

Mathematics
2 answers:
Anna71 [15]3 years ago
8 0

Answer:

2 + 5i

Step-by-step explanation:

Setler [38]3 years ago
3 0
P-q= 5-2i-(-3+7i) = 5-2i+3-7i = 8-9i
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In response to very high demand, a new bike has been marked up by 25% and is now selling for 210.00. how much was the bike befor
harina [27]
Call the price of the bike before mark up 'x', then we have:

x + 0.25x = 210
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Therefore, the bike cost $168 before 25% price increase.


3 0
3 years ago
Read 2 more answers
Graph this function:<br> y= 5x - 18
lutik1710 [3]
The graph is shown below. 

5 0
3 years ago
What is the exact value of cos (67.5° )?
Brilliant_brown [7]

Answer:

0.38268343

Step-by-step explanation:

cos( 67.5 )

Rewrite  

67.5

as an angle where the values of the six trigonometric functions are known divided by  2 . cos ( 135\ 2)

Apply the cosine half-angle identity.

±

√

1

+

cos

(

135

)

2

 

Change the  

±

to  

+

because cosine is positive in the first quadrant.

√

1

+

cos

(

135

)

2

Simplify  

√

1

+

cos

(

135

)

2

√

2

−

√

2

2

The result can be shown in multiple forms.

Exact Form:

√

2

−

√

2

2

Decimal Form:

0.38268343

…

6 0
3 years ago
Graph f(x) = 2 x + 3 + 2.
Tasya [4]
Hi this is the graph from desmos!

3 0
2 years ago
Help me on this please
vaieri [72.5K]
The secound one is 1.125
4 0
3 years ago
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