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Ymorist [56]
2 years ago
10

the first row the theater has 15 seats in it each subsequent row has 3 more seats that seats that the previous ow . if the last

row has 78 sears, how many rows are in the theater a 21 b 78 c 77 d 45 e 22
Mathematics
1 answer:
ivann1987 [24]2 years ago
7 0

Answer:

21 rows

Step-by-step explanation:

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What 1,500 rounded to the nearest hundredth
Tcecarenko [31]

Answer:

2,000

Step-by-step explanation:

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2 years ago
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4 is the square root of which number ?
Tom [10]
Your answer would be two
6 0
3 years ago
Can help me complete this problem please :c
FrozenT [24]

Answer:

112.5 deg

Step-by-step explanation:

First we find the area of the entire circle.

A = pi * r^2

A = pi * (4 m)^2

A = 16pi m^2

The entire circle has area = 16pi m^2.

The sector has area 5pi m^2.

Now we find the fraction the area of the sector is of the entire circle.

fraction = (5pi m^2)/(16pi m^2) = 5/16 = 0.3125

The full circle has a central angle of 360 deg, the entire circle.

The measure of the central angle of the arc of the sector is the same fraction of the entire circle.

measure of sector angle = 0.3125 * 360 deg = 112.5 deg

4 0
3 years ago
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The population of a particular city is given by the function P(t) = 27,400(1.07)t, where t is the time in years and P(t) is the
otez555 [7]

Answer:

27,400 is the current population

7% is the rate of increase

The new size is:

  • 38,430 is the population if t is an exponent
  • 146,590 is t is NOT an exponent in the formula you typed

Step-by-step explanation:

To find the population in a future year, use the formula:

P(t) = 27,400(1.07)t

Substitute the value t=5 to find the population in 5 years.

P(t) = 27,400(1.07)t\\P(t) = 27,400(1.07)(5)\\P(t) = 146,590


Or if the equation is supposed to have t as an exponent then look below:

P(t) = 27,400(1.07)^t

Substitute the value t=5 to find the population in 5 years.

P(t) = 27,400(1.07)^t\\P(t) = 27,400(1.07)^(5)\\P(t) = 38,430

This formula is based off the standard formula A=A_0(1+r)^t so r, the rate is 1.07=1+0.07 so r is 7%.

A_0 is the starting population which is 27,400 here.

4 0
3 years ago
10/21 + ( 2/3 - 1/7 ) =
Marizza181 [45]
Simplify 2/3 - 1/7 to 11/21
10/21 + 11/21
Simplify 
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7 0
3 years ago
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