Answer:
D) x + y ≤ -4
3x + 2y ≤ -5
Step-by-step explanation:
<u><em>Step(i):-</em></u>
we will choose the system of inequalities
x + y ≤ -4
3x + 2y ≤ -5
x + y = -4 ...(i)
3x + 2y = -5..(ii)
Multiply equation (i) with '3'
3x + 3y = -12
3x + 2 y = -5
<u> - - +</u>
<u> 0 + y = -7 </u>
<u>Step(ii):- </u>
Substitute y = -7 in equation (i)
x + y = -4
x - 7 = -4
x = -4 + 7
x = 3
<em>The solution of the given inequalities is ( 3, -7)</em>
<u />
Answer:
A (52,2%, 55,8%)
Step-by-step explanation:
To get the confidence interval, we have to add the margin of error to the point estimator.
The middle of the interval is 54%, and the ME is 1.8%. Don't forget that this means ±1.8%!
54 - 1.8 = 52.2%
54 + 1.8 = 55.8%
So our confidence interval is (52,2%, 55,8%) and the answer is A.
Answer:
Step-by-step explanation:
We know that
p(x) and f(x) ------------> both are defined by the equation of a straight line
g(x)----------> is a grade 2 or higher function
see the attached figure<span>Part A: What is the solution to the pair of equations represented by p(x) and f(x)?
the solution is the intersection both graphs
the solution is the point (-2,-3)
the answer part A) is the point </span>(-2,-3)
<span>Part B: Write any two solutions for f(x)
for x=-6 f(-6)=5
for x=-3 f(-3)=-1
</span><span>Part C: What is the solution to the equation p(x) = g(x)?
</span>the solution is the intersection both graphs
the solution is the point (0,2)
Answer:
Step-by-step explanation:
Using pythagoras theorem,