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IRISSAK [1]
3 years ago
5

Explain why there must be at least two lines on any given plane.

Mathematics
2 answers:
Ghella [55]3 years ago
6 0
There must be 2 lines on every plane because you need a y-axis and an x-axis.
3241004551 [841]3 years ago
5 0

There exists one plane through any three noncollinear points. Since the points cannot be on the same line, at least two lines would have to pass through any of the three points

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Using the triangle theorem solve this triangle.​
Blizzard [7]

Answer:

8 and 8√3

Step-by-step explanation:

Sin90 = b/8

1 x 8 =b

b=8

Tan 30 = 8/a

1/√3 = 8/a

a=8√3

3 0
3 years ago
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Question 57 need help
prisoha [69]
Okay so first we need to find the height ofn one hay barrel. To do this we must use the equations v= h×w×l

We already know 3 out of the 4 variables in the equations, in this case we are given the volume so we must work backwards.

The equation will look like this:
10 \frac{2}{3}    = h \times (1  \frac{1}{3} ) \times 4
First we must mulitpy 4 and 1 1/3 to get 16/3. The equation will now look like:
10 \frac{2}{3}  = h \times  \frac{16}{3}
Next divide 16/3 from h then from 10 2/3 to get :
2 = h
The height is 2ft. Finally multiply 2 by the number of hay barrels (8) placed upon each other becuase we're finding the height and you will get your answer of 16 ft in height.
8 0
3 years ago
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for every girl taking classes at the martial arts schools there are 3 boys who are taking classes at the school. if there are 23
Yuliya22 [10]

You have to be very careful how you set this up. For every girl (who counts as 1) there are 3 boys (who count as 3). The total number in the proportion is 3 + 1 =4. You are given a total, but that is both boys and girls. That's why you need the 4.

3/4 = x / 236 Cross multiply

4x = 3 * 236

4x = 708 Divide by 4

x = 708/4

x = 177

There are 177 boys at the school and 236 - 177 = 59 girls.

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3 years ago
A team of 10 players is to be selected from a class
AveGali [126]

Answer:

ok.......what do you want me to answer

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Step-by-step explanation:

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I will mark you as most Brillance if you help me get this right!
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5=10x-3-6x=4x-3
8/4=x
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