So to find the mean you add them all together and divide by the number of numbers there is so 11+15+19+17+23+20+17+18+21=174 and there are 10 numbers so it would be 174/10 which is 17.4 so you answer is 17.4

4 0

3 years ago

Simplify the expression write your answer as a power

Ira Lisetskai [31]

Answer:

$3^{4}$

Step-by-step explanation:

Using the rule of exponents

$a^{m}$ × $a^{n}$ ⇔ $a^{(m+n)}$ , then

3² × 3²

= $3^{(2+2)}$

= $3^{4}$

7 0

3 years ago

Does each set of side lengths form a right triangle 10 m, 11 m, 15 m or 15 m, 8 m, 17 m,

IrinaVladis [17]

Can you be a little more specific please

6 0

3 years ago

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PLEASE HELP!!! I HAVE A TEST!!!

dsp73

PLEASE HELP!!! I HAVE A TEST!!!
121 is 55% of what number?
C. 66.55

4 0

3 years ago

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