3 years ago

Write an expression that represents the amount of hydrochloric acid in x gallons of a 3% hydrochloric acid solution.

Mathematics

1 answer:

ziro4ka [17]3 years ago

8 0

X=3%h I think I'm not to sure hope that helped! Good Luck!!!

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Factorize that x^4+4y^4

ipn [44]

Answer:

(x² + 2y² + 2xy)(x² + 2y² - 2xy)

Step-by-step explanation:

<h3>Given binomial:</h3>

x⁴ + 4y⁴

In order to factorize it, follow the steps:

<h3>Complete the square:</h3>

x⁴ + 4y⁴ =
(x²)² + 2*(x²)*(2y²) + (2y²)² - 2*(x²)*(2y²) =
(x² + 2y²)² - (2xy)² =
(x² + 2y² + 2xy)(x² + 2y² - 2xy)

Used identities:

(a + b)² = a² + 2ab + b²
a² - b² = (a + b)(a - b)

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2 years ago

When you walk across the carpet and touch a metal doorknob, you create a spark. This occurs because ______________.

Alexeev081 [22]

Answer:

Step-by-step explanation:

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3 years ago

What is the complete factorization of r2 - 6r - 9s2 + 9? A) (r - 3 + 3s)(r - 3 - 3s) B) (r + 3 + 3s)(r - 3 - 3s) C) (r - 3 + 3s)

nikitadnepr [17]

$r^2-6r-9s^2+9=r^2-6r+9-9s^2=r^2-2\cdot r\cdot3+3^2-9s^2\\\\\text{use}\ (a-b)^2=a^2-2ab+b^2\\\\=(r-3)^2-9s^2=(r-3)^2-(3s)^2\\\\\text{use}\ a^2-b^2=(a-b)(a+b)\\\\=(r-3-3s)(r-3+3s)\to A$

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3 years ago

Geraldine is an accrual basis taxpayer who has the following transactions during the current calendar tax year: Accrued business

Artyom0805 [142]

Answer:

Total: $69,500

Step-by-step explanation:

Income:

Other than rental: 220,000

Rental: 21,000

Expenses:

Other than rental: (170,000)

Rental (9,000/6): (1,500)

Total: $69,500

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3 years ago

Multiply 1 1/3 * 1 3/4

babunello [35]

Answer:

2 1/3

Step-by-step explanation:

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3 years ago