In the data set below, what is the interquartile range? 11 13 36 48 54

A local charity sponsors a 5K race to raise money. It receives $25 per race entry and $5,000 in donations, but it must spend $5

Katena32 [7]

The charity needs at least 1001 entries to raise more than $25000. Let n be the number of race entries, i be the income of the race, and c the cost of the race. The money that the 5K brings in is given by i = 25 * n + 5000 The cost is given by c = n * 5 Now if the charity needs to raise more than 25000 then the income minus the cost must be greater than 25000. 25000 < i - c subsituting for i and c 25000 < i - c = (25 * n + 5000 ) - (5 * n) simplifying results in 25000 < 25*n - 5*n + 5000 25000 < 20*n + 5000 20000 < 20*n 1000 < n The number of entries must be greater than 1000. Since entries must be an integer the charity needs at least 1001 entries.

5 0

3 years ago

What is the sum of the interior angels of a regular polygon with 7 sides. choices are

Oksi-84 [34.3K]

Sum of Interior Angles of any poligon, where n is the number of sides: =

(n-2) × 180°

---------------------

(7 - 2) * 180° =

5 * 180 =

900°

[d]

7 0

3 years ago

Which is the best approximation of the solutions to the system of equations graphed below?

Neko [114]

According to the direct inspection, we conclude that the best approximation of the two solutions to the system of quadratic equations are (x₁, y₁) = (- 1, 0) and (x₂, y₂) = (1, 2.5). (Correct choice: C)

<h3>What is the solution of a nonlinear system formed by two quadratic equations?</h3>

Herein we have two parabolae, that is, polynomials of the form a · x² + b · x + c, that pass through each other twice according to the image attached to this question. We need to estimate the location of the points by visual inspection on the Cartesian plane.

According to the direct inspection, we conclude that the best approximation of the two solutions, that is, the point where the two parabolae intercepts each other, to the system of two quadratic equations are (x₁, y₁) = (- 1, 0) and (x₂, y₂) = (1, 2.5). (Correct choice: C)

To learn more on quadratic equations: brainly.com/question/17177510

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4 0

2 years ago

Which is equivalent to 3v8

Tomtit [17]

Answer:

C.

Step-by-step explanation:

= $\sqrt[3]{8}^{x}\\$