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Rus_ich [418]
3 years ago
14

Quiz

Mathematics
1 answer:
Lilit [14]3 years ago
7 0
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You might be interested in
Find the diamter of a circle if its area is 706.9mm²​
Masteriza [31]

Answer:

<h2>30 mm</h2>

Step-by-step explanation:

The formula of an area of a circle:

A=\pi r^2

<em>r</em><em> - radius</em>

<em />

We have

A=706.9\ mm^2

Substitute:

\pi r^2=706.9          <em>divide both sides by π</em>

r^2=\dfrac{706.9}{\pi}        <em>use π ≈ 3.14</em>

r^2\approx\dfrac{706.9}{3.14}\\\\r^2\approx225\to r=\sqrt{225}\\\\r= 15\ mm

The diameter <em>d = 2r</em>.

Therefore

d=2(15)=30\ mm

3 0
3 years ago
A plumber has a copper pipe 0.9 meter long. He cuts the pipe into 4 equal pieces. Find the length of each piece of meters. Round
PIT_PIT [208]
0.9m = 90cm

90÷4 = 22.5cm = 0.225m ≈ 0.2m
3 0
3 years ago
What is the quotient of 18/1000
TiliK225 [7]
The answer is .018 because you move the decimal 3 back because there is 3 zeros
6 0
3 years ago
Point T is on line segment
Fofino [41]

Answer:

Numerical length of TU = 6

Step-by-step explanation:

A/q,

SU = ST+TU

5x = 4x-3 + 2x

5x = 4x+2x-3

5x = 6x -3

5x-6x = -3

-x = -3

x = 3

Verify:- Putting x = 3 in 5x =4x-3+2x

5(3) = 4(3)-3+2(3)

15 = 12-3+6

15= 9+6

15= 15

LHS =RHS Hence correct

4 0
3 years ago
Find the surface area of this triangular prism! fast
vladimir1956 [14]
20+48+12+16=96

Surface area=96
7 0
3 years ago
Read 2 more answers
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