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Liono4ka [1.6K]
2 years ago
13

Five submarines sink on the same day, and all five go down at the same spot where a sixth had previously sunk. How might they al

l lie at rest so that each submarine touches the other five? To simplify, arrange six wooden matches so that each match touches every other match. No bending or breaking allowed.

Mathematics
1 answer:
hodyreva [135]2 years ago
4 0

Answer:

picture is attached

Step-by-step explanation:

there are many options but this is one

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Plz I need help Plz I need help Plz I need help Plz I need help Plz I need help!!!!!!!!!!!!!!!!!!!!!!
Dafna11 [192]

Answer:

LEAST DIFFICULT: B

MOST DIFFICULT: I

Step-by-step explanation:

LEAST DIFFICULT:

The easiest systems of equations to solve are ones in which x or y is equal to just a number , because in this case, you can just sub in that number in the other equations. Though not the only one, B is an example of this.

MOST DIFFICULT:

More difficult systems of equations to solve are the ones with different amounts of x and y as it requires more computation. Set I is an example of this

8 0
3 years ago
A soccer ball was kicked in the air and follows the path h(x)=−2x2+1x+6, where x is the time in seconds and h is the height of t
madam [21]

The ball will hit the ground at 2 seconds.

Step-by-step explanation:

Given that,

The path of the ball = h(x)=−2x2+1x+6

Here,

x is the time while h is the height of ball.

When the ball will hit the ground, the height will become zero. Therefore,

h(x)=−2x2+1x+6

0 =−2x2+1x+6

or

2x2 -1x - 6 = 0

This is a quadratic equation, hence by applying quadratic equation formula:

x = \frac{-b +- \sqrt{b^{2} - 4ac }   }{2a}

here,

a = 2

b = -1

c = -6

Putting these values in formula, we get

x = \frac{-(-1) +- \sqrt{-1^{2} - 4.2.-6 }   }{2.2}

x = \frac{1 +- \sqrt{1 + 48 }   }{4}

x = \frac{1 +- \sqrt{49 }   }{4}

x = \frac{1 +- 7   }{4}

x = 2, -3/2

As the time cannot be negative. Therefore, the ball will hit the ground at 2 seconds.

6 0
3 years ago
Read 2 more answers
2) If 3/5 of students carry an iPhone, what fraction of students is this using 75 as the denominator
kkurt [141]

Answer:

45/75

Step-by-step explanation:

75/5 = 15

15x3 = 45

8 0
2 years ago
E=mc^2 in terms of m
JulijaS [17]
E/(c^2) = mc^2/(c^2)
m = E/(c^2) 
7 0
3 years ago
12 POINTS!!!<br><br><br> Find x. (Hint. Draw an auxiliary line
padilas [110]

Answer:

30

Step-by-step explanation:

x+50=180(संगत कोन भएकाले )

x=180-50

X=130

अब,

130-100=30

4 0
3 years ago
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