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kupik [55]
3 years ago
14

The equation sin (40 degree) equals StartFraction b Over 20 EndFraction can be used to determine the length of line segment AC.

Triangle A B C is shown. Angle A C B is a right angle. The length of side A C is b and the length of hypotenuse A B is 20 centimeters. What is the length of ? Round to the nearest tenth.
Mathematics
1 answer:
almond37 [142]3 years ago
8 0

Answer:

its 12.9cm on edg.

Step-by-step explanation:

You might be interested in
Work out the circumference of this circle.
kirill [66]

Answer:

62.84

Step-by-step explanation:

pie=3.142

c=pie * diameter

r=10cm

d=2r

d=2(10)=20cm

c=3.142 * 20

c=62.84

4 0
3 years ago
Read 2 more answers
3x+2y=11<br> y=5x-1<br><br> SUBSTITUTION <br><br> WORTH 10 POINTS
cupoosta [38]
X=1 and y=4. first I did 
3x+2y=11
y=5x-1
and 3x+2(5x-1)=11
=3x+10x-2=11
=13x-2=11
cancel 2 out
13x=13
x=1. then simply add x in the original y equation,
y=5x-1
y=5(1)-1
y=5-1
y=4.
check your work
3(1)+2(4)=11
4=5(1)-1 
again X=1 AND Y=4 
Hope this helped
5 0
3 years ago
What is the volume of the cylinder shown? (Use 3.14 for π .) the height is 21 in and half the diameter is 15 .
-BARSIC- [3]

Answer:

Volume = 14,836.5 cubic inches

Step-by-step explanation:

Cylinder not shown but information given. So we will calculate the volume.

Volume of Cylinder is given by the formula:

V=\pi r^2 h

Where

V is the volume

r is the radius (HALF of DIAMETER)

h is the height

It is given in the problem,

Height is 21

h = 21

and

half the diamter (aka radius) is 15

r = 15

Substituting into formula and using 3.14 for \pi, we get the volume:

V=\pi r^2 h\\V=\pi (15)^2 (21)\\V=(3.14)(225)(21)\\V=14,836.5

Hence, the volume is:

Volume = 14,836.5 cubic inches

7 0
3 years ago
So I have 4 math problems, whether you choose to answer them or not is your choice. Also thank you if you do answer them. :)
cestrela7 [59]

Answer:

1) 9

2) 256

3) -32

4) -2744

Step-by-step explanation:

3 0
3 years ago
2(x-3)=14<br> -5(x-1)= 40<br> 12(X+20)=24
kakasveta [241]
2x-6=14 2x=20
a)x=10
-5x5=40 -5x=35
B)x=-7
12x+240=24 12x=-216
C) x=-18
3 0
3 years ago
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