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nevsk [136]
3 years ago
8

I have no clue what I'm doing

Mathematics
1 answer:
sergejj [24]3 years ago
5 0
Try to get all the x'es to the right side
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Which number completes this Pythagorean triple 300, 400 ?
forsale [732]
300²+400²=500² is your answer
a²<span> + b</span>²<span> = c</span>²
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3 years ago
Are there whole numbers that are not integers
zavuch27 [327]

Answer:

No

Step-by-step explanation:

All whole numbers, positive, negative, and 0 are integers.

4 0
4 years ago
What method would you choose to solve the equation 2x2 – 7 = 9? Explain why you chose this method.
Kisachek [45]
<span>This is a quadratic equation . We order to equate to zero

</span>2x²<span> – 7 = 9  
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2x² - 7-9 = 0
2x² - 16 = 0

This equation is a binomial
2* (x² - 8) = 0
<span>We choose the simplest method . The equation with practice it can be calculated in the memory
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The product is equal to 0 if one of the factors is zero
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2≠0  ∨     x² - 8 = 0
               x² = √8
               x = √8     ∨  x= - √8

Answer : x = √8 ∨ x = -√8
5 0
3 years ago
Read 2 more answers
Find the perimeter of ABCD<br> Find the area of Area
san4es73 [151]

Step-by-step explanation:

A = (1, 3)

B = (3, 6)

C = (9, 2)

D = (7, -1)

the distance between 2 points is given by the Pythagoras equation based on the coordinate differences as legs of virtual right-angled triangles.

AD for example we get from

AD² = (7-1)² + (-1 - 3)² = 6² + (-4)² = 36 + 16 = 52

AD = sqrt(52) = sqrt(4×13) = 2×sqrt(13)

and AB we get from

AB² = (3-1)² + (6-3)² = 2² + 3² = 4 + 9 = 13

AB = sqrt(13)

the perimeter of the given rectangle is

2×sqrt(52) + 2×sqrt(13) = 2×2×sqrt(13) + 2×sqrt(13) =

= 6×sqrt(13) = 21.63330765...

and the area of the rectangle is

2×sqrt(13)×sqrt(13) = 2×13 = 26

7 0
2 years ago
One state lottery game has contestants select 5 different numbers from 1 to 45. The prize if all numbers are matched is 2 millio
Eduardwww [97]
Huhhhh dnbddnndnjsjsjjdjddjdrjrj
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3 years ago
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