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Olenka [21]
2 years ago
15

Math help please and thanks

Mathematics
1 answer:
Artyom0805 [142]2 years ago
5 0

Answer:

idek and i dont ;like how this is working!

Step-by-step explanation:

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Which two statements contradict each other?
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II. Triangle ABC is obtuse and III. Triangle ABC is acute, because acute is less than 180° and obtuse is between 180° and 270°
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X+y=13 and 1/2x+y=10
photoshop1234 [79]
X=6
y=7

6+7
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4 years ago
What is the probability that 2 randomly selected months have 31 days?
aniked [119]

Answer:

31.8%

Step-by-step explanation:There are 7 months that have 31 days so,

The odds the first selected month has 31 days is 7/12

The next month there are only 6 months left with 31 days of only 11 months to choose from

so the odds for the second are 6/11

To calculate the odds they BOTH  have 31 months you multiply the two odds:

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6 0
3 years ago
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Solve the equation the square root of the quantity x plus 4 minus 3 equals 1 for the variable.
Kruka [31]

Answer:

x = 12

Step-by-step explanation:

sqrt(x+4) - 3 = 1

First get the sqrt all by itself on one side of the equation. Add 3 to both sides of the equation.

sqrt(x+4) = 1 + 3

sqrt(x+4) = 4

To "fix" the sqrt, that is, "undo it" and get rid of it, you have to SQUARE both sides of the equation.

(sqrt(x+4))^2 = 4^2

x + 4 = 16

subtract 4 to finish up.

x = 12

Check:

sqrt(12 + 4) - 3 = 1

sqrt16 - 3 = 1

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1 = 1 Check!

6 0
2 years ago
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\large\underline\red{\sf \implies Solution :- }

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