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matrenka [14]
3 years ago
11

Sin230° = _____ -sin50° sin50° sin130°

Mathematics
1 answer:
likoan [24]3 years ago
8 0
Sin230=sin(180+50)=sin180cos50+cos180sin50=-sin50 answer 1
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Triangle E G F is shown. The length of E G is 10 and the length of E F is 12. Angle E F G is 56 degrees.
omeli [17]

Answer:

29

Step-by-step explanation:

Triangle E G F is shown. The length of E G is 10 and the length of E F is 12. Angle E F G is 56 degrees.

Trigonometric area formula: Area = One-half a b sine (C)

The area of triangle EFG is 34.8 square units. What is the perimeter of triangle EFG to the nearest unit?

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3 years ago
During summer vacation, Erin read, on average, 4 pages per night. Once she returned to school, she averaged 3 pages per night. W
alexandr1967 [171]

Answer:

25% decrease.

Step-by-step explanation:

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6 0
3 years ago
Your teacher is selecting class partners by drawing names out of a bag. There are 12 girl's names and 10 boy's names. What is th
sasho [114]
The answer would be A)20/77.
The reason is that without replacement it would go (10/22)*(12/21)=0.2597
You can do the easy route I did then do (20/77) which would also give you 0.2597.
8 0
2 years ago
Read 2 more answers
Solve to find x and y in the diagram. HELP PLEASE!!!
Mashcka [7]

6x = 90

  x = 90/6

  x = 15

4x + 10y = 90

4(15) + 10y = 90

60 + 10y  = 90

10y = 30

y = 3

Answer: Last option

x = 15, y = 3

3 0
3 years ago
Read 2 more answers
I made my own tricky math question. But I don't know if its tricky for you. Amelia has 1 notebook on her desk, she put her noteb
fomenos

Answer:

1 thing, her pouch

Step-by-step explanation:

you sayed that she took her notebook away and the only thing onher desk is her pouch

5 0
3 years ago
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