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Nezavi [6.7K]
3 years ago
9

PLEASE HELP WILL MARK U BRAINLIEST

Mathematics
1 answer:
larisa86 [58]3 years ago
3 0

Answer: x=27

Step-by-step explanation:

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Solve x and y x/5+y/6=12
Arlecino [84]

Answer:

2435

Step-by-step explanation:

add your numbers

4 0
3 years ago
Show all your work multiplying the polynomials above:
Alika [10]

Answer:

3x^{5} - 11x^{4} - 4x³ + 3x² + x

Step-by-step explanation:

(x³ - 4x² + 1)(3x² + x)

Each term in the second factor is multiplied by each term in the first factor, that is

x³(3x² + x) - 4x²(3x² + x) + 1 (3x² + x) ← distribute parenthesis

= 3x^{5} + x^{4} - 12x^{4} - 4x³ + 3x² + x ← collect like terms

= 3x^{5} - 11x^{4} - 4x³ + 3x² + x

4 0
2 years ago
Write these expressions as the square of a monomial.
son4ous [18]

Answer:

81x4 = (9x^2)^2, 121a6 = (11a^3)^2, 0.09y12 = (0.3y^6)^2, 4/9b6 = (2/3b^3)^2

Step-by-step explanation:

sqrt of 81 = 9, (we do sqrt because its the inverse to exponents) x^4, x^2 * x^2 = (9x^2)^2

sqrt of 121 = 11, a^6, a^x * a^2 = a^6, x = 3, (11a^3)^2

sqrt of 0.09 = 0.3, y^12 = y^x * y^2, x=6,(0.3y^6)^2

sqrt of 4/9 = 2/3, b^x * b^2 = b^6, x = 3, (2/3b^3)^2

^ = power, * = multiplication

8 0
3 years ago
Two kids are born on the same day of the of the same year to the same mom and dad, they are not twins, explain.
valina [46]
They’re triplets duhhhhhhhhh
7 0
3 years ago
Read 2 more answers
.prove that cos (90-A).sinA + sin(90 - A).cosA = 1 ​
pav-90 [236]

Answer:

See Explanation

Step-by-step explanation:

cos (90-A).sinA + sin(90 - A).cosA = 1  \\  \\ LHS = cos (90-A).sinA + sin(90 - A).cosA \\  \\ = sinA.sinA + cosA.cosA\\  \\ = sin ^{2} A + cos^{2} A \\  \\  = 1 \\  \\=RHS\\\\ reason \\ cos (90- \theta) = sin \theta \\ sin (90- \theta) = cos \theta \\ sin ^{2}  \theta + cos^{2}  \theta = 1 \\  \\ thus \: proved \\

4 0
3 years ago
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