3 years ago

Can you please help I have to go to bed

1 answer:

3 0

1. C
3. C
4. F
5. A
6. G

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MaRussiya [10]

14 ÷ 28 =7 its must 28÷4

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3 years ago

Helen [10]

Answer:

18.98

Step-by-step explanation:

20.00 - 1.02

= 18.98

Therefore, $18.98 is the change he should legally receive.

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Drupady [299]

Zero.

None of the 14 cm cubes will fit within the 8 cm height.

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3 years ago

Rasek [7]

One way could be 210 hundreds, 5 tens, and 4 ones. I will think of others but for now hope this helps

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3 years ago

crimeas [40]

Hello,

$if\ n=1\ then\ 1^2=1\ and\ \dfrac{1}{6}*1*2*3=1:\ true\ for\ n=1\\$

We suppose the property true for n:

1²+2²+...+n²=n(n+1)(2n+1) / 6

and we are going to demonstrate that the property is true for n+1:

1²+2²+..+(n+1)²=(n+1)*(n+2)*(2n+3)/6

$1^2+2^2+...+n^2+(n+1)^2\\\\=n*(n+1)*(2n+1)/6+(n+1)^2\\\\=(n+1)/6*[n(2n+1)+6n+6]\\\\=(n+1)/6*(2n^2+7n+6)\\\\=(n+1)(n+2)(2n+3)/6\\$

5 0

2 years ago