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3 years ago

Help please!! will give brainiest :))

Mathematics

2 answers:

jeyben [28]3 years ago

7 0

Answer:

81(x + 2y)(x - 2y)

Step-by-step explanation:

$81 {x}^{2} - 324 {y}^{2} \\ \\ = {(9x)}^{2} - {(18y)}^{2} \\ \\ = (9x + 18y)(9x - 18y) \\ \\ = 9(x + 2y) \times 9(x - 2y) \\ \\ = 81(x + 2y)(x - 2y)$

Kitty [74]3 years ago

3 0

<h2><u><em /></u></h2><h2><u><em> -98415 is the answer because im smart</em></u></h2>

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A restaurant sells pizza in 3 different size portions. The table shows the costs of each portion. Cost Portion Size $1.00 1 slic

Snezhnost [94]

The best portion to buy would be the 6 slices for you pay 95 cents per slice

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3 years ago

Read 2 more answers

kirill115 [55]

<span>B. (1, –3)

</span><span>x – y = 4
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3 years ago

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Sarah earns a 5% commission for each house she sales. Write an equation that relates Sarah's total incomes (T), if she has a bas

jonny [76]

Answer:

$T = 25000 + 0.05x$

Step-by-step explanation:

Given

$Salary = 25000$

$Commission = 5\%$

Required

Write an equation when sales = x

The equation can be written as:

$Total (T) = Salary + Commission * Sales$

This gives

$T = 25000 + 5\% * x$

Convert percentage to decimal

$T = 25000 + 0.05 * x$

$T = 25000 + 0.05x$

7 0

3 years ago

Multiply and simplify.

ankoles [38]

Answer:

10 g^4 h^9

Step-by-step explanation:

-5gh^4 * (-2g^3 h^5)

Rewriting

-5*-2 g*g^3 h^4*h^5

When the bases are the same, we add the exponents (x^a * x^b = x^ (a+b)

There is an implied 1 if there is no exponent

-5*-2 g^1*g^3 h^4*h^5

10 * g^(1+3) h^(4+5)

10 g^4 h^9

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3 years ago

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Maurinko [17]

Answer:

You know this because $110x20%=$22.

3 0

3 years ago