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Valentin [98]
2 years ago
5

I need help with this math work

Mathematics
1 answer:
Marizza181 [45]2 years ago
7 0
What are the directions for this?
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34. The diagram shows a sector of a circle of radius 10 cm.
Sergio [31]

Answer:

rc  length  =  10 * 8pi/5

 =   16pi

This is the circumference of the base

(a)   2pir     =   16pi  where  r  =  radius of base

  2r     =    16

   r     =  8 cm

(b)   10^2    =   h^2   +  8^2

 h^2    =   100  -  64

  =    36

h      =    6 cm

8 0
2 years ago
Read 2 more answers
Which expressions simplify to a rational answer? Select each correct answer. 29√⋅4√ 3√⋅16−−√ 73⋅−√3√ 5√⋅5√
PolarNik [594]

Answer:

The correct options are 1, 3 and 4.

Step-by-step explanation:

We need to find the expressions whose simplified form is a rational number.

Rational number: If a number is defined in the form of p/q where p and q are integers and q≠0, then it is called a rational number.

For example: 0,2, 4.3 etc.

Irrational number: If a number can not defined in the form of p/q, where p and q are integers and q≠0, then it is called an irrational number.

First expression is

2\sqrt{9}\cdot \sqrt{4}=2(3)\cdot (2)\Rightarrow 6\cdot 2=12

12 is a rational number.

Second expression is

\sqrt{3}\cdot \sqrt{16}=\sqrt{3}\cdot 4\Rightarrow 4\sqrt{3}

4\sqrt{3} is an irrational number.

Third expression is

7\sqrt{3}\cdot \sqrt{3}\Rightarrow 7\cdot 3=21

21 is a rational number.

Fourth expression is

\sqrt{5}\cdot \sqrt{5}=5

5 is a rational number.

Therefore, the correct options are 1, 3 and 4.

4 0
3 years ago
Rajan bought 5 copies of a book to give as
solong [7]

Answer:

Step-by-step explanation:

the original price was the one she started at

8 0
3 years ago
6 Narong’s family bought 3 shirts, 2 pairs of jeans,
Bas_tet [7]
The answer is $204.Hope this helps.
5 0
3 years ago
Please solve this quickly
adell [148]

Answer:

I Didn't see nothing

Step-by-step explanation:

So I can't help you

7 0
2 years ago
Read 2 more answers
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