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melomori [17]
2 years ago
12

Please help! I will mark as brainliest IF answer is right. <3

Mathematics
2 answers:
EastWind [94]2 years ago
7 0

Answer:

b^2 + 3b - 4 + 4/(b-2)

Step-by-step explanation:

see pic

Phoenix [80]2 years ago
5 0

I think one of these is the answer.

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L
d1i1m1o1n [39]

Whole numbers

Natural numbers

Real nunbers

6 0
3 years ago
Find c and round to the nearest tenth. thank you in advance
PSYCHO15rus [73]

Answer and Step-by-step explanation:

90ft = a

55ft = b

50ft = c

Plug into equation.

50^{2}  = 90^{2}  + 55^{2}  - 2(90)(55)cosC\\\\2500 = 11125 - 9900(cosC)\\\\-8625 = -9900(cosC)\\\\0.8712 = cosC\\\\cos^{-1} (0.8712) = C\\\\29.4

29.4° is the answer.

4 0
3 years ago
I need help with my math!
pantera1 [17]

Answer:

there are a total of 20 boys and 30 girls in the choir of 50 students

Step-by-step explanation:

Scale the ratio 2:3. so that the numbers on either side sum to 50 . 2+3=5 , and 50÷5=10 , so we scale our ratio by a factor of 10 . So there are a total of 20 boys and 30 girls in the choir of 50 students

3 0
3 years ago
the pilgrims sailed aboard the mayflower to America in 1620.in 2040.how many years will have passed since the pilgrims sailed to
Bezzdna [24]

Subtract the year the pilgrims sailed from the year you want to find the distance from:

2040 - 1620 = 420 years.

4 0
3 years ago
Which of the following statements about the distance formula is TRUE?
Licemer1 [7]
B is correct.  The distance formula can be written correctly in several different ways.  Examples:

sqrt( change in x)^2 + (change in y)^2 ) 

sqrt( (x2-x1)^2 + (y2-y1)^2 )
4 0
3 years ago
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