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yKpoI14uk [10]
3 years ago
11

(30 points)Red Rocks Parks is an open air amphitheater carved out of rock, near Denver Colorado. The amphitheater has 69 rows of

seats for 3318 people. The number of seates in the first 45 rows can be modeled by the arithmetic sequence whose nth term is 871/2 + 3/2 * n .
You are organizing a concert at Red Rocks Parks. Using sigma notation, find the sum of the first 45 rows. The sum is ________ How much should you charge per ticket in order to receive $50,000 for the ticket sales of a performance that is sold out? ________ per ticket (round answer to nearest tenth digit)

Mathematics
1 answer:
Kobotan [32]3 years ago
5 0

Answer:

En la última fila de la zona general hay 98 asientos y en la zona preferencial hay 564 asientos.

Explicación paso a paso:

= 1 + − 1 ×

40 = 20 + 40 − 1 × 2

40 = 20 + 39 × 2

40 = 20 + 78

40 = 98

=  (1 + )  2 ×

12=  (36 + 58)  2 ×12

12 = 47 × 12

12 = 564

Step-by-step explanation:

dame corona

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What is an equation of the line that passes through the points (0, -7) and (-8, 3)?
avanturin [10]

Answer <u>(assuming it can be in slope-intercept form)</u>:

y = -\frac{5}{4} x-7  

Step-by-step explanation:

1) First, find the slope of the line by using the slope formula, m = \frac{y_2-y_1}{x_2-x_1}. Substitute the x and y values of the given points into the formula and solve:

m = \frac{(3)-(-7)}{(-8)-(0)}\\m = \frac{3+7}{-8-0} \\m = \frac{10}{-8} \\m = -\frac{5}{4}

So, the slope is -\frac{5}{4}.

2) Now, use the point-slope formula y-y_1 = m (x-x_1) to write the equation of the line in point-slope form. Substitute real values for the m, x_1, and y_1 in the formula.

Since m represents the slope, substitute -\frac{5}{4} in its place. Since x_1 and y_1 represent the x and y values of one point the line intersects, choose any one of the given points (either one is fine, it will equal the same thing at the end) and substitute its x and y values into the formula as well. (I chose (0, -7), as seen below.) Then, isolate y to put the equation in slope-intercept form and find the following answer:

y-(-7) = -\frac{5}{4} (x-(0))\\y + 7 = -\frac{5}{4} x\\y = -\frac{5}{4} x-7

7 0
2 years ago
Which point is on the graph of f(x) = 2 · 5*
kap26 [50]

Answer: The answer is (1,10)

Step-by-step explanation:

7 0
3 years ago
What is the equation of the line in slope-intercept form?
Sladkaya [172]

Answer:

equation: y = -6x -20

Step-by-step explanation:

pass (0,-20) (-10,40)

y = mx + b

y intercept (b) = -20

slope (m) = (40 - -20) / (-10 - 0) = 60 / -10 = - 6

equation: y = -6x -20

3 0
3 years ago
Plz answer asap thanks
tester [92]
The answer is 44%.!!!!!!!!!!!!!!!!!!!!!!!!!!!
8 0
3 years ago
Read 2 more answers
From the numbers below​
Debora [2.8K]
The largest rational number in the list is -6/5 and it is the third number line.
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3 years ago
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