Answer:

Step-by-step explanation:
9.5 in value of adult tickets. 6.5 is value of children's tickets. combined selling of all of them should be greater than or equal to 800 ("atleast" in the question shows it can be more but cannot be less)
The answer is B. The problem involves partial sums, thus the presence of sigma for easier coverage. The number above the sigma is the number where the process stops, while the number below is the starting value of the unknown value in the equation.
The
<u>correct answer</u> is:
The relationship is linear, and the equation is
y-5 = 2(x+7).
Explanation:
To determine if the relationship is linear, we find the slope between each pair of points. Slope is given by the formula:

The slope between the <u>first two points</u> is given by:

The slope between the <u>second pair of points</u> is given by:

The slope between the <u>third pair of points</u> is given by:

Since the <u>slope is the same</u> throughout the data, the <u>relationship is linear</u> and the slope is 2.
To write the equation, we use point-slope form, which is:
y-y₁ = m(x-x₁)
Using the first point, we have:
y-5 = 2(x--7)
y-5 = 2(x+7)
Answer:
Step-by-step explanation:
let X1,X2 represents the length of two pieces selected from a population
the mean and standaerd deviation for the length of these two pieces X1,X2 is 30 cm and 0.14 cm
let X2,X3 represents the length of two pieces selected from a population
the mean and standaerd deviation for the length of these two pieces X2,X3 is 45 cm and 0.31 cm
To be continued on the attachment: