1 year ago

8 - (-9) simplified with each expression

Mathematics

1 answer:

Arte-miy333 [17]1 year ago

7 0

Hi :)

Let's remember some arithmetic w/ negative integers :

a+(-b)=a-b

a-(-b)=a-b

Now

8-(-9)=8+9=17

So the answer's 17

I hope this helps

You might be interested in

How many solutions does the equation 3x + 6 equals -1 - 3 + 4x have?

wariber [46]

3x + 6 = -1 - 3 + 4x
Combine like terms on the right side.

3x + 6 = -4 + 4x
Add 4 to both sides.

3x + 10 = 4x
Subtract 3x from both sides.

10 = x

The equation has one solution (10).

3 0

3 years ago

Read 2 more answers

Someone please HELP!?

jeka94

A negative exponent just means that the base is on the wrong side of the fraction line, so you need to flip the base to the other side.

For example

$x^{-2}=\frac{1}{x^2}$

or

$( \frac{2}{5} )^{-4}=( \frac{5}{2} )^4$

***************************************
$(8r^{-5})^{-3}$

$(8* \frac{1}{r^5} )^{-3} \\\\( \frac{8}{r^5} )^{-3}
 \\ \\ ( \frac{r^5}{8} )^3
\\\\ \mathrm{Apply\:exponent\:rule}:\quad *\left(\frac{a}{b}\right)^c=\frac{a^c}{b^c} \ \ \ \ \ \ \ \ \ \ \ \ *(a^b)^c=a^{bc}
 \\\\( \frac{r^{15}}{8^3} )
\\\\( \frac{r^{15}}{512} )$

The answer is "D"

7 0

2 years ago

Of all the rectangles with an area of 441 square feet, find the dimensions of the one with the smallest perimeter.

Drupady [299]

<span>1*441 & 3*147 & 7*63 & 9*41 &21*21 are all factor pairs of 441
</span>
21&21 have the smallest sum and would make for the smallest perimeter

Answer:l=21 w=21

6 0

3 years ago

A restaurant sells 10 tacos for $8.50, or 6 of the same kind of taco for $5.40. Which is the better deal? Explain how you know.

V125BC [204]

Answer:

10 for 8.50 is .085 for 1 taco and 5.40 for 6 is .90 per taco

Step-by-step explanation:

7 0

3 years ago

Hey cutie I need the answer ASAP

Vesnalui [34]

Answer:

Step-by-step explanation:

3 0

2 years ago