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VMariaS [17]
2 years ago
13

Find the surface area do not round your answer

Mathematics
1 answer:
patriot [66]2 years ago
5 0
(2x3.14x12^2)+(2x3.14x12x40)
=3918.72
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There are 2 seats on the left side on each row and 3 seats on the right side there are 90 seats on the right side of the plane h
arsen [322]

Answer:

Total number of seats on plane is 150 seats.

Step-by-step explanation:

Number of seats on left side = 2 in each row

Number of seats on right side = 3 in each row

Total number of seats on right side = 90

Number of rows = total number of seats on right side/ number of seats on right in each row

Number of rows = 90 / 3 = 30 rows

So, total number of seats on left side = 30 * 2 = 60 seats

Total number of seats = total seats on right side + total seats on left side

Total number of seat = 90+ 60 = 150 seats

Hence total number of seats on plane is 150 seats.

6 0
3 years ago
Find the missing length indicated <br> A) 25<br> B) 5<br> C) 8<br> D) 3<br> Please help!
Alex_Xolod [135]

Answer:

The answer I got is 3. I attached above my solutions. I hope that helps :))

5 0
2 years ago
Someone please help me thank you
german

Answer:

4

Step-by-step explanation:

7x = x² - 8

=> x² - 7x - 8 = 0

use quadratic formula:

a = 1, b = -7, c = -8

x = \frac{-(1)±\sqrt{(-7)^{2} - 4(1)(-8) } }{2(1)} <em>(pls ignore the "A" I don't know why it's showing up)</em>

=> x = \frac{-1±\sqrt{49 + 32} }{2}

=> x = \frac{-1±9 }{2}

=> x = \frac{-1 +9}{2} = 4 or \frac{-1-9}{2} = -5 <em>(the answer is only 4 since it's asking for the positive solution)</em>

6 0
2 years ago
Read 2 more answers
Find the product: ( x-1/x ) ( x+1/x ) ( x2+1/x2 ) ( x4+1/x4 )
erma4kov [3.2K]

Use the difference of 2 squares (a - b)(a + b) = a^2 - b^2:-

(x - 1/x)(x + 1/x) = x^2 - (1/x)^2

= x^2 - 1/x^2

(x ^2 - 1/x^2)(x^2 + 1 /x^2)

= x^4 - 1/x^4

(x^4 - 1/x^4)(x^4 + 1/x^4)

= x^8 - 1 /x^8 Answer

3 0
2 years ago
Now Cathy is three times as old as Katie. In six years Cathy will be only twice as old as Katie. How old is each girl now?
klasskru [66]

Answer:

6 and 18

6+6=12

18+6=24

12x2=24

Unless a number is given it is mainly trial and error so guessing numbers that fit the first part of Ax3=B

Step-by-step explanation:

5 0
2 years ago
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