3 years ago

Work out the mean of these numbers. Please help.

1 answer:

8 0

Answer:

3 $\sqrt{2}$

Step-by-step explanation:

you will work out the sum of these numbers then divide them by 3

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maxonik [38]

2x³+18x²<span>-18x-162 =
2(</span>x³+9x²-9x-81)=
2(x²(x+9)-9(x+9))=
2(x²-9)(x+9)=
2(x+3)(x-3)(x+9)

Answer: k=3

7 0

3 years ago

kozerog [31]

Answer: $726 cm^{2}$

Step-by-step explanation:

surface area(SA)= $6s^{2}$

= $6*(11)^{2}$

= $6*121$

= $726 cm^{2}$

s= the length of the side of the cube

6 0

3 years ago

Papessa [141]

Answer:

about 21.43 i hope this helps!!! :)

Step-by-step explanation:

1.42857143 is equal to 1 and 3/7

multiply that by 15

21.4285714286

4 0

4 years ago

Vanyuwa [196]

Okay so a triangle equals 180 degrees. 90 + 47 is 137. you need to get 180.
180 - 137 = 43.
Angle z equals 43 degrees.
Hope this helps!!

5 0

4 years ago

mote1985 [20]

What does b = 4/5 8b?

4 0

4 years ago