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3 years ago

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Using the matrix solver on your calculator, find the solution to the system of equations shown below.3x - 5y = 162x - 7y = 7 bra

inly

1 answer:

kolezko [41]3 years ago

4 0

Answer: x=7 , y=1

Step-by-step explanation:

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Lady_Fox [76]

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Step-by-step explanation:

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3 years ago

Simplify 7 square root of 3 end root minus 4 square root of 6 end root plus square root of 48 end root minus square root of 54

Katen [24]

$7\sqrt3-4\sqrt6+\sqrt{48}-\sqrt{54}\\\\=7\sqrt3-4\sqrt6+\sqrt{16\cdot3}-\sqrt{9\cdot6}\\\\=7\sqrt3-4\sqrt6+\sqrt{16}\cdot\sqrt3-\sqrt9\cdot\sqrt6\\\\=7\sqrt3-4\sqrt6+4\sqrt3-3\sqrt6\\\\=\boxed{11\sqrt3-7\sqrt6}$

3 0

3 years ago

What's (2x) ^3 in expanded notation form?

inessss [21]

Answer:

<h2><em><u>2x</u></em><em><u> </u></em><em><u>×</u></em><em><u> </u></em><em><u>2x</u></em><em><u> </u></em><em><u>×</u></em><em><u> </u></em><em><u>2x</u></em></h2>

Step-by-step explanation:

${(2x)}^{3}$

= <em><u>2x × 2x × 2x (In expanded notation form) (Ans)</u></em>

5 0

3 years ago

Read 2 more answers

The cost for Andrea to produce several units of a certain item is $336 plus $12 per unit. She sells this item for $28 per unit.

Morgarella [4.7K]

Profit will be achieved when the money earned is greater than the money spent so,
336 + (n*12) = n*28 any subsequent units sold would result in profit
336 = 28n - 12n
336 = 16n
=> n = 336/16 = 21
21 units must be sold to draw even any more would result in profit

3 0

3 years ago

Which expression represents, 8 times the difference of two numbers?

tiny-mole [99]

Answer:

C, the difference is subtraction so 8 times the difference of two numbers is C

4 0

3 years ago

Read 2 more answers