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3 years ago

15xy - 4 + 2xy -7xy - 1

Mathematics

1 answer:

Eduardwww [97]3 years ago

6 0

Answer:

10xy-5

Step-by-step explanation:

15xy-4+2xy-7xy-1 is the given expression.

I assume the directions say to simplify.

Group the xy terms together and group the constants together.

15xy+2xy-7xy-4-1

This is a demonstration of the commutative property.

Now I will use the distributive property to rewrite the first 3 terms as a multiplication:

(15+2-7)xy-5

10xy-5

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valina [46]

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3 years ago

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BARSIC [14]

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In each case, there are 7 games.

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3 years ago

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Answer:

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Step-by-step explanation:

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3 years ago

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3 0

3 years ago

21. Find the distance between the points. Leave your answer

asambeis [7]

Answer:

The answer is

$\sqrt{65} \: \: \: units$

Step-by-step explanation:

To find the distance between two points we use the formula

$\sqrt{ ({x1 - x2})^{2} + ( {y1 - y2})^{2} }$

where

( x1 , y1) and ( x2 , y2) are the points

From the question the points were

(-8,5), (-1.1)

Substitute the values into the above formula

That's

$\sqrt{ ({ - 8 + 1})^{2} + ({5 - 1})^{2} }$

$\sqrt{ ({ - 7})^{2} + {4}^{2} }$

$\sqrt{49 + 16}$

We have the final answer as

$\sqrt{65} \: \: units$

Hope this helps you

4 0

3 years ago

15xy - 4 + 2xy -7xy - 1​

15xy - 4 + 2xy -7xy - 1