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V125BC [204]
3 years ago
7

How do I solve this and what is the answer

Mathematics
1 answer:
expeople1 [14]3 years ago
4 0
(-3) - (-3) = - 6
3 + (-3) = 0
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7 A triangle is right-angled if the sides are a = m2 − n2, b = 2mn and c = m2 + n2 where m and n are positive integers, and m &g
Karo-lina-s [1.5K]
The general formula for the sides of right triangle is
a² + b² = c²

Subtitute the equation of a and b to the formula a² + b², evaluate if the answer will be the same as the equation of c²

a² + b²
= (m² - n²)² + (2mn)²
= (m² - n²)(m² - n²) + (2mn)(2mn)
= (m⁴ - 2m²n² + n⁴) + 4m²n²
= m⁴ + 2m²n² + n⁴

Factorize the result
m⁴ + 2m²n² + n⁴
= (m² + n²)(m² + n²)
= (m² + n²)²
= c²

It's proven by the formula that c² = (m² + n²)²
so the c will be m² + n²
6 0
3 years ago
Which choices are equivalent to the expression below? check all that applies please
andre [41]
Choices A, C and F work. This is because when in radical form, you may dive or subtract as long as you keep the sign. The square root of 9 is 3 and the square root of 4 is 2. When you solve it, the answer is 6. Hope this helped!
7 0
4 years ago
Read 2 more answers
Value of x in 23/-x=2/8
Stels [109]

Answer:

x=-92 is the answer I hope it helps

4 0
3 years ago
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Which of the following is a square root of 3(cos(4pi/9)+i sin(4pi/9))
Margaret [11]

Answer:

— 4√16(cos(4π3)+isin(4π3))=2(cos(−π6)+isin(−π6))=√3−i. Explanation: De Moivre's formula tells us that: (cosθ+isinθ)n=cosnθ+isinnθ.

Step-by-step explanation:

6 0
3 years ago
Please please please help fast this is a BIG deal
aniked [119]

Answer:

190.625 ft^2

Step-by-step explanation:

A = bh = (15.25) * (12.5) = 190.625 ft^2

5 0
3 years ago
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