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Oksana_A [137]
2 years ago
6

Please help :P Marking as brainlist

Mathematics
1 answer:
Svetllana [295]2 years ago
8 0

Answer:

32cm³

. . . .. . . . . . . . . . .

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What is the LCD for 11/21 and 31/45
Leokris [45]
There is none except for eleven and that is it

8 0
3 years ago
Is line m: -x+2y=6 parallel, perpendicular, or neither parallel nor perpendicular to line n: y=-2x+6?
Serhud [2]
Make them both equal to y

y=-2x+6

2y=x+6 y=1/2x+3

These are perpendicular since ones slope is -2 and the other is the opposite, 1/2.
7 0
3 years ago
The circumference of a circle is 25.12cm. What is the area of the circle? Use 3.14
malfutka [58]
C=2pir
area=pir^2

given
c=25.12
25.12=2pir
pi=3.14
25.12=2(3.14)r
25.12=6.28r
divide both sides by 6.25
4=r

sub into other
area=pir^2
area=pi4^2
area=16pi
area=16(3.14)
area=50.24

the area is 50.24 square cm
3 0
3 years ago
A line intersects the point (-3, -7) and
Anastaziya [24]

Answer:

y=-3x-16

Step-by-step explanation:

y-y1=m(x-x1)

y-(-7)=-3(x-(-3))

y+7=-3(x+3)

y=-3x-9-7

y=-3x-16

8 0
2 years ago
A board 109 cm long has to be cut into two pieces so that the longer part is 10 cm more than twice as long as the shorter part.
11111nata11111 [884]
 x = longer section
y = shorter section

x + y = 109
x = 2y + 10

so we sub in eq 2 into eq 1
2y + 10 + y = 109
3y + 10 = 109
3y = 109 - 10
3y = 99
y = 99/3
y = 33 <=== shorter section is 33 cm

x = 2y + 10
x = 2(33) + 10
x = 66 + 10
x = 76 <=== longer section is 76 cm
4 0
3 years ago
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