All categories

3 years ago

Use the distributive property to write each expression then evaluate it 7(7-9)

Mathematics

2 answers:

valkas [14]3 years ago

8 0

Answer:

49-63

Step-by-step explanation:

1. (7·7) - (7·9)

2. (49) - (63)

3. 49 - 63 = -14

Hoped I helped!! :)

polet [3.4K]3 years ago

8 0

Answer:

Step-by-step explanation:

If you subtract -9 from positive 7 you get -2

Then you multiply the positive 7 from that -2 and your answer will be

-14

Here is an example

7(7-9) ALWAYS do the parenthesis first

7*-2

-14

You might be interested in

A book sold 31,700 copies in its first month of release. Suppose this represents 8.8% of the number of copies sold to date. How

elena-14-01-66 [18.8K]

For this case we propose a rule of three:

31700 ------------> 8.8%

x ----------------------> 100%

Where "x" represents the number of copies sold to date.

$x = \frac {100 * 31700} {8.8}\\x = \frac {3170000} {8.8}\\x = 360,227.273$

Thus, to date 360,227 copies of the book have been sold.

ANswer:

To date, 360,227 copies of the book have been sold.

8 0

3 years ago

Rewrite by completing the square 2x^2+7x+6=0

Kitty [74]

Answer:

$2x^2+7x+6=0\\\\2(x^2+\frac72x+3)=0\\\\2[x^2+2\cdot x\cdot\frac74+(\frac74)^2-(\frac74)^2+3]=0\\\\2[x^2+2\cdot x\cdot\frac74+(\frac74)^2]-2(\frac74)^2+6=0 \\\\2(x+\frac74)^2-2\cdot\frac{49}{16}+6=0\\\\2(x+\frac74)^2-\frac{49}8+\frac{48}8=0\\\\2(x+\frac74)^2-\frac18=0$

6 0

3 years ago

Bryan is asked to write an inequality to represent the graph.

Fittoniya [83]

The error that Bryan has done in this inequality is that he included –14 in his solution set.

<h3>How to point out the mistake made</h3>

What Bryan has to do would be to write this inequality in such a way that the variable would appear on the left.

But the symbol that he has chosen does not move in this same direction as the graph.

The -14 should not be inclusive in the graph because it is not a part of the graph solution.

He used the wrong number in this inequality.