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alexandr402 [8]
3 years ago
14

What is the circumference of the circle with 5cm as radius? ​

Mathematics
1 answer:
Darina [25.2K]3 years ago
3 0

circumference of circle= 2pie r

= 2×22/7 ×5

= 31.42 cm

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Help on math problem
Anvisha [2.4K]
Das is similarity


the 2 triangles are similar because of math ( don't remember which theorem or whatever)

so since similar

we have to find the bottom length
use right triangle properties
a²+b²=c²
14²+5.5²=c²
196+30.25=c²
226.25=c²
√226.25=c

ten, we do similarity

the hyptonuse of smaller triangle to base of smaller triangle is √226.25:5.5
since the triangles are similar, that should be equal to the ratio of the hypotonuse of the largger triangle to the base, which is x:√226.25


so
x/√226.25=√226.25/5.5
times both sides by √226.25
x=226.25/5.5
x≈41.1363636

the height of screen is 6 less than total
41.13636-6=35.13636

height of screen is about 35ft
5 0
3 years ago
A mathematical expression that contains one or more _______________ is called an algebraic expression.
hjlf
ANSWER: Variables

Explanation:
3 0
3 years ago
Read 2 more answers
Which equation has no solution? A 2(x+1)=1 B 2(x+1)=2x+2 C 2(x+1)=2x+1 D 2(x+1)=2
Veseljchak [2.6K]

Answer:

C) 2(x+1)=2x+1 ( No Solution )

Step-by-step explanation:

1)

2(x+1)=1\\\cfrac{2\left(x+1\right)}{2}=\frac{1}{2}\\x+1=\cfrac{1}{2}\\ x+1-1=\frac{1}{2}-1\\\boxed{x=-\frac{1}{2}}

2)

2(x+1)=2x+2\\2x+2=2x+2\\2x+2-2=2x+2-2\\2x=2x\\2x-2x=2x-2x\\0=0

3)

2(x+1)=2x+1 \\2x+2=2x+1\\2x+2-2=2x+1-2\\2x=2x-1\\2x-2x=2x-1-2x\\0=-1\\\boxed{No\:Solution}

4)

2(x+1)=2\\\cfrac{2\left(x+1\right)}{2}=\cfrac{2}{2}\\x+1=1\\x+1-1=1-1\\x=0

~

4 0
2 years ago
How to find perimeter of A(−6,−4),B(−4,−4),C(−4,−2),D(−6,−2)
balu736 [363]

Answer:

Step-by-step explanation:

AB=-4-(-6)=2

DC=-4-(-6)=2

BC=-2-(-4)=2

AD=-2-(-4)=2

Perimeter=4*2=8 units

6 0
3 years ago
Can u change 28/140 into a percent
Anton [14]

Answer:

2%

Step-by-step explanation:

28/140=0.2

5 0
3 years ago
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