Three of these expressions give the distance between points A and B on the number line. Which expression does NOT?

1 answer:

7 0

answer: was willing to help but you should’ve added a picture or added the choices there was to pick from because there isn’t much info.

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Explain how to subtract 247 from 538?

alexandr402 [8]

1. 538 - 247 = ?

2. 8 - 7 = 1

3. You can't subtract 3 and 4, so you have to take number from 5 (turning it into a 4) and then you add a 1 right next to 3 (which makes it 13;13 - 4 = 9

4. 4 - 2 = 2

538 - 247 = 291

So the answer is 291.

7 0

3 years ago

Solve.<br> x^2+9x+2=0<br> thanks!

shtirl [24]

Step one:
ALWAYS set equation equal to zero, which in this case has already been done for us.

Step two:
Figure out what formula you need to use in order to solve in this case I'd use the Quadratic formula.

a=1
b=9
c=2

Quadratic formula:
$x = \frac{ - b + - \sqrt{(b) ^{2} - 4(a)(c)} }{2(a)}$
Then you would plug in the information.
$x = \frac{ - 9+ - \sqrt{(9) {}^{2} - 4(1)(2) } }{2(1)}$
The solve for what is underneath the square root ONLY.
$x = \frac{ - 9 + - \sqrt{73} }{2}$
Since you cannot solve this any further, your final two answers are...
$x = \frac{ - 9 + \sqrt{73} }{2}$
$x = \frac{ - 9 - \sqrt{73} }{2}$

3 0

3 years ago

Mary spent $100 for $150 worth of merchandise. What percentage did she save?

ankoles [38]

66.6% because 100 is 2/3rds of 150

5 0

3 years ago

Read 2 more answers

Your adding 6 3/4 + 3 2/3

MrRa [10]

9 5/12 I think I’m not hundred percent

8 0