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Anettt [7]
3 years ago
8

50 POINTS

Mathematics
2 answers:
gladu [14]3 years ago
3 0
B
C
D
I'm not totally sure these are correct but I hope they are.I tried my very best and I hope you get more sleep.
zhuklara [117]3 years ago
3 0

Well the first one is B,30.

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Calculate the volume of the cylinder, where a = 18 and b = 11. Use 3.14 for pi and round your answer to the nearest tenth.
cupoosta [38]

Answer:

Volume of cylinder =2797.7

Step-by-step explanation:

Let a be diameter and b the height of the cylinder

Then\ radius(r)=\frac{diamater\ (a)}{2}\\\\r=\frac{18}{2}\\\\r=9

Volume of cylinder =\pi\times(radius)^2\times(height)

=\pi\times(9)^2\times11\ \ \ \ \ \ (\pi=3.14)\\\\=3.14\times9\times9\times11\\\\=2797.74\\\\\approx2797.7

6 0
3 years ago
Find the value of x<br> PIC IS BELOW
maks197457 [2]

:\implies \sf 3x = 27⁰

:\implies \sf x = \dfrac{27}{3}

:\implies \sf x = 9

c.) x = 9⁰, angle measure is 27⁰

5 0
3 years ago
Which is the sum of the interior angles of an octagon?
cupoosta [38]
To find the sum of interior angles, subtract 2 by the number of sides and then multiply the difference by 180.

180 (8-2) = 180(6) = 1080.

1080 is the sum of the interior angles of an octagon

Hope this helps :)
5 0
4 years ago
Bill drove 469 miles in 7 hours. At the same rate, how long would it take him to drive 871 miles?
salantis [7]
469          871
------  = ---------
7              x

469x = 7(871)
469x = 6097
x = 6097/469
x = 13 hours

hope this helps :)
3 0
4 years ago
Read 2 more answers
Product is -8 and sum is 2.<br> What are the two numbers
anygoal [31]

Step-by-step explanation:

Let the two numbers be x and y.

\therefore \: xy =  - 8...(1) \\  and \\ x + y = 2 \\  \\  \therefore \:x = 2 - y...(2)

From equations (1) & (2)

(2-y)y=-8\\\therefore \: 2y - y^2 = - 8\\\\\therefore \:y^2 - 2y-8=0\\\\\therefore \:y^2 - 4y+2y-8=0\\\\\therefore \:y(y - 4)+2(y-4)=0\\\\\therefore \:(y+2)(y - 4)=0\\\\\therefore \:(y+2)=0\:\: or\:\:(y - 4)=0\\\\\therefore \:y=-2\:\: or\:\:y =4\\\\    When \:\: y = - 2\implies x = 4\\\\When \:\: y = 4\implies x = - 2\\

Thus, the two numbers are (4, - 2) or (-2, 4).

6 0
4 years ago
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