The roots of a quadratic function are the points at which the cross the x axis (the x- intercepts). so your roots are
(3) 3 and -6
The value of x is 5/6 and y is 8/5.
Step-by-step explanation:
Given,
12x+15y=34 Eqn 1
-6x+5y=3 Eqn 2
Multiplying Eqn 2 by 2
Adding Eqn 1 and 3
Dividing both sides by 25
Putting y= 8/5 in Eqn 1
Dividing both sides by 12
The value of x is 5/6 and y is 8/5.
Keywords: Linear equations, fractions
Learn more about fractions at:
#LearnwithBrainly
The formula of the margin of error of the sample mean.
MOE = standard deviation / square root (sample size).
MOE = 0.043 * 15 / square root (15)
MOE = 0.1665
So, the margin of error of the sample mean is 0.17
<span>When "n" is any other number in the tenths place holder such as .1, .2, .3,8
</span>and no other digits in any other place holder<span>
</span>