Please comment on this so I can see the full question
Convert the mixed number <span>21 <span>2/3</span></span><span> into an </span><span>improper fraction.
</span>15⋅<span>65/3
</span><span>Cancel 3 and 15.
</span><span>5⋅65
</span>Multiply 5<span> by </span>65<span> to get </span><span>325.
</span>325
Answer:
325
1. Use Difference of squares: a^2-b^2=(a+b)(a-b)
(x+k)(x-k)=0
2. Solve for x and k
x=+-k
k=+-x
Answer:
7x+5
Step-by-step explanation:
2x+5+2x+3x
=2x+2x+3x+5
=7x+5
<u>Answer:</u>
The correct answer option is b = -a.
<u>Step-by-step explanation:</u>
We know that a number b is located the same distance from 0 as another number, a, but in the opposite direction.
So, The equation will be b = -a which is the same as writing b = -1 * a.
Here, the negative sign with the 'a' will change it from positive to negative, or vice versa.
Recall how,
negative times positive is negative; and
negative times negative is positive.
