Answer:
stuck on that too
Step-by-step explanation:
I use mathswatch aswell
Y= 11-2x
Substitute in:
5x-2(11-2x)=-13
5x-22+4x=-13(combine like-terms)
9x-22=-13
9x=-13+22
9x=9
x=1
Not sure what the question is.
<u>9</u>+2x=18
Subtract 9 from each side then...
<u>2</u>x=9
Divide each side by 2 and you'll have that x is....
x=4.5
Not sure if I answered correctly.
The rule sometimes called the Empirical Rule, which means "based on observations" The graph is shown this way : (see attachment). This rule is represented by a<span><span>bout 68% of values fall within one standard deviation of the mean.</span>About 95% of the values fall within two standard deviations from the mean.<span>Almost all of the values — about 99.7% — fall within three standard deviations from the mean.</span></span>
The minimum number of degrees that a hexagram can be rotated so that it is carried onto itself is 60 degrees.