Answer:
B. TRUE.
(3, 2) is the intersection point of the graphs of
x + y = 5 and x - y = 1.
Step-by-step explanation:
Option B is TRUE because intersection point should satisfy both the equation
and in option be it comes true.
i.e x = 3 and y = 2 we have
3 + 2 = 5 and 3 - 2 = 1
5 = 5 and 1 = 1
Hence TRUE
A.
(3, 2) is the intersection point of the graphs of
3x + 2y = 5 and 3x - 2y = 1.
i.e x = 3 and y = 2 we have
3×3 + 2×2 = 5 and 3×3 - 2×2 = 1
13 ≠ 5 and 5 ≠ 1
Hence FALSE
C.
(5, 1) is the intersection point of the graphs of
3x + 2y = 5 and 3x - 2y = 1.
i.e x = 5 and y = 1 we have
3×5 + 2×3 = 5 and 3×5 - 2×3 = 1
21 ≠ 5 and 9 ≠ 1
Hence FALSE
D.
(5, 1) is the intersection point of the graphs of
x + y = 5 and x - y = 1.
i.e x = 5 and y = 1 we have
5 + 1 = 5 and 5 - 1 = 1
6 ≠ 5 and 4 ≠ 1
Hence FALSE
Using the z-distribution, the estimate for how much the drug will lower a typical patient's systolic blood pressure is:
<h3>What is a z-distribution confidence interval?</h3>
The confidence interval is:
In which:
is the sample mean.
is the standard deviation for the population.
In this problem, we have a 80% confidence level, hence
, z is the value of Z that has a p-value of 
, so the critical value is z = 1.28.
The other parameters are given by:
Then the bounds of the interval are:
Hence the interval is:
More can be learned about the z-distribution at brainly.com/question/25890103
#SPJ1
Answer:
2+2+2=6 and 6+6+6+6+6=30
Step-by-step explanation:
The four angles are congruet. So each angle is 90°.
So the figure is a rectangle. It could be a square but not necessarily. You can consider a square a special case of rectangle.
The four angles of a rectangle are congruent. And the opposite sides are congruent.
The four angles of a square are congruent. The opposite sides are congruent, furthermore the four sides are congruent.
The answer is D. Ratio. When ever you see “per” another number it’s a ratio.
