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Agata [3.3K]
2 years ago
12

2-2(x-25) what is the answer?

Mathematics
2 answers:
BartSMP [9]2 years ago
5 0

Answer:

F= 2

F=-2

F=x-25

Step-by-step explanation:

DerKrebs [107]2 years ago
4 0
-271 thank me later dude
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2 years ago
What should step 3 say?
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Step-by-step explanation:

step 2

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2 years ago
If cos x= 5/13 and sin x <0 find cos (x/2) and sin (2x)
taurus [48]
We know that

if cos x is positive
and
sin x is negative
so
the angle x belong to the IV quadrant

cos x=5/13
we know that
sin²x+cos²x=1-------> sin²x=1-cos²x------> 1-(5/13)²---> 144/169
sin x=√(144/169)-------> sin x=12/13
but remember that x is on the IV quadrant
so
sin x=-12/13

Part A) <span>cos (x/2)
cos (x/2)=(+/-)</span>√[(1+cos x)/2]
cos (x/2)=(+/-)√[(1+5/13)/2]
cos (x/2)=(+/-)√[(18/13)/2]
cos (x/2)=(+/-)√[36/13]
cos (x/2)=(+/-)6/√13-------> cos (x/2)=(+/-)6√13/13
the angle (x/2) belong to the II quadrant
so
cos (x/2)=-6√√13/13

the answer Part A) is 
cos (x/2)=-6√√13/13

Part B) sin (2x)
sin (2x)=2*sin x* cos x------> 2*[-12/13]*[5/13]----> -120/169

the answer Part B) is 
sin(2x)=-120/169
4 0
3 years ago
8 classmates share 4 pizzas equally
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Answer:

each classmate gets half of a pizza

4 0
2 years ago
(40 points + Brainliest)
statuscvo [17]
Answer is A.

rate = 10/1 = 10ft and passing origin (0,0)
7 0
3 years ago
Read 2 more answers
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