7/9 times 21/10 can become 7/3 times 7/10 which is 49/30 which is 1 19/30 at it's most reduced form since 19 is prime.
Explanation:
Start out by dividing all terms by 3 to put the equation in PROPER Slope-Intercept Form:

Now, starting from the y-intercept of [0, 4], you do
by either moving two blocks <em>north</em> over three blocks <em>west</em> or two blocks <em>south</em> over three blocks <em>east</em> [<em>west</em> and <em>south</em> are negatives].
I am joyous to assist you anytime.
K value = natural log (.5) / half-life
half-life = natural log (.5) / k value
half-life = -.693147 / 0.1011
half-life =
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6.8560534125
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I'd say the k value should be negative AND it should have units.
This circle is given in standard form

, where

is the ordered pair for the center of the circle.
Notice that in the equation, we have

and

. When writing the ordered pair alone, we have to remember to flip the sign.
Therefore, we have

.
Answer:
Step-by-step explanation:
The image on the right is not the answer. It is reflected across the y axis. equations and the inverses are reflections of each other across the line y = x. So that lets out the middle one as well which looks to be reflected across y = - x
That only leaves the left image which is the correct answer.