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sladkih [1.3K]
3 years ago
14

Question (1)

Mathematics
1 answer:
Free_Kalibri [48]3 years ago
8 0

Answer:

● The pythagorian theorem

The pythagorian theorem is used to find a missing side of a right triangle.

It states that the square of the hypotenus of a right triangle is equal to the sum of the squares of the two other sides.

Let a be the hypotenus, b and c are the othet sides:

☆☆☆☆☆ a^2 = b^2 + c^2☆☆☆☆☆

There are more than 350 way to prove this theorem.

■■■■■■■■■■■■■■■■■■■■■■■■■■

● Hippasus of Croton was a member of the highly-secretive school og Pythagoras in Croton. He is credited in history as the first person to prove the existence of irrational numbers.

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Solve the system of equations by graphing. x+y=-9 4x+y=-19
shutvik [7]

For this case we have the following system of equations:

x + y = -9\\4x + y = -19

We multiply the first equation by -4:

-4x-4y = 36

We have the following equivalent system of equations:

-4x-4y = 36\\4x + y = -19

We add the equations:

-4x + 4x-4y + y = 36-19\\-3y = 17\\y = - \frac {17} {3}

We find the value of the variable "x":

x = -9-yx = -9 - (- \frac {17} {3})\\x = -9 + \frac {17} {3}\\x = \frac {-27 + 17} {3}\\x = - \frac {10} {3}

Thus, the solution of the system is:

(x, y): (- \frac {10} {3}, - \frac {17} {3})

See the graphic in the attached image

ANswer:

(x, y): (- \frac {10} {3}, - \frac {17} {3})

See the graphic in the attached image

4 0
4 years ago
4=2/7x please awnser
n200080 [17]
4=2/7x
(7)4=2/7x(7)
28=2x
— —
2. 2
14=x

x=14
3 0
3 years ago
To check the condition that the sample size is large enough before applying the Central Limit Theorem for Sample​ Proportions, r
skad [1K]

Answer:

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Step-by-step explanation:

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This year I caught 30 fish, which is 6 more than twice the number I caught last year. How many did I catch last year
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30 = 6 + 2x
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(3n)-2=5

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7 0
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