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Margarita [4]
3 years ago
5

Simplify: (7a − 9c) − (−12a − 33c) − (−21a + 10c)

Mathematics
2 answers:
CaHeK987 [17]3 years ago
6 0
Distribute all the negatives: 7a-9c+12a+33c+21a-10c

simplify:
40a+14c
balandron [24]3 years ago
5 0
(7a-9c)-(-12a-33c)-(-21a+10c) \\ \\ =7a-9c+12a+33c+21a-10c \\ \\ =40a+14c \\ \\ \boxed {Answer\ is\ 40a+14c }
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-1=5+x/6 step by step
Gnesinka [82]

Answer:

-1=(30+x)÷6

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3 0
3 years ago
In a game, a participant is given three attempts to hit a ball. On each try, she either scores a hit, H, or a miss, M. The game
Sidana [21]

Answer:

chancing for wining is 54%.

Step-by-step explanation:

possible outcomes can be given as

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HHM *

HMH

MHH *

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MHM

MMH

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Out of those, only 3 will have the participant win the game:

HHH, HHM, MHH.

Probability (HHH) + Probability (HHM) + Probability (MHH)

since attempts are independant.

Probability (HHH) = 0.9 *0.4 *0.9 = 0.324

Probability (HHM) = 0.9 *0.4 *0.3 = 0.108

Probability (MHH) = 0.3 *0.4 *0.9 = 0.108

Add them up and get  = (0.324+ 0.108+0.108) = 0.54

hence, chancing for wining is 54%.

3 0
3 years ago
Four times a number added to seven times the number equals 55
VLD [36.1K]
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5 0
3 years ago
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How many flowers spaced every 4 inches are needed to surround a circular garden with a 15-foot radius? Round all circumference a
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Answer:

283 flowers

Step-by-step explanation:

c=2pi*r

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4 0
3 years ago
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Svetlanka [38]
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Second part
12 * 100
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3 0
4 years ago
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