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murzikaleks [220]
3 years ago
8

10 121518Are my choices​

Mathematics
2 answers:
Crazy boy [7]3 years ago
6 0

Answer:

y=10 x=30

Step-by-step explanation:

3x=90

x=30

2(30)+3y=90

60+3y=90

3y=30

y=10

omeli [17]3 years ago
3 0

Answer:

y= 10

Step-by-step explanation:

we have to find x first

∠ABD= 90° because its a right angle

3x°=90°

divide by on both sides

x= 30°

∠CBD must equal 90° degrees as well because a line is 180°

60+3y= 90

-60

3y=30

/3

y= 10

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4 years ago
& A bowl made in the shape of a hemisphere has diameter of 12 centimeters. When the bowl is
son4ous [18]

Answer:

3

Step-by-step explanation:

volume of a hemisphere = (2/3) x (n) x (r^3)

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6 0
3 years ago
Helppppp plz people!!!
vesna_86 [32]

Answer:

20

Step-by-step explanation:

x^2/y

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3 0
3 years ago
When Jonas does his math homework, he spends an average of 2 minutes on each problem. Last night he spent 1.6 hours on his non-m
alexgriva [62]

Answer:

C.  

1.8 hours

Step-by-step explanation:

total homework time = math homework time + non math homework time

math homework time = 5 problems * 2 minutes/problem

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total homework time = math homework time + non math homework time

total homework time = .167 + 1.6

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5 0
3 years ago
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zepelin [54]

Answer:

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Step-by-step explanation:

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9 = w

7 0
3 years ago
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