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2 years ago

A number cube is rolled 14 times and the results are recorded in the table.

Mathematics

1 answer:

marshall27 [118]2 years ago

8 0

Answer:

D.5/14

Because 4 appeared five times over the total

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1. 8x-x <br> solve <br> I NEED HELPPP ASAP

White raven [17]

Answer:

Step-by-step explanation:

$8x-x\\\mathrm{Add\:similar\:elements:}\:8x-x=7x$

4 0

3 years ago

Read 2 more answers

2.54 cm / 1 in. = 100 cm / x in. show the work

Kitty [74]

2.45 cm= 1 in. so 100 cm must equal 39.37 in. because you already know 2.45 cm equals 1 inch and 1 metre equals 100 cm and 1 metre is equal to 39.37.

5 0

3 years ago

Can somebody prove this mathmatical induction?

Flauer [41]

Answer:

See explanation

Step-by-step explanation:

1 step:

n=1, then

$\sum \limits_{j=1}^1 2^j=2^1=2\\ \\2(2^1-1)=2(2-1)=2\cdot 1=2$

So, for j=1 this statement is true

2 step:

Assume that for n=k the following statement is true

$\sum \limits_{j=1}^k2^j=2(2^k-1)$

3 step:

Check for n=k+1 whether the statement

$\sum \limits_{j=1}^{k+1}2^j=2(2^{k+1}-1)$

is true.

Start with the left side:

$\sum \limits _{j=1}^{k+1}2^j=\sum \limits _{j=1}^k2^j+2^{k+1}\ \ (\ast)$

According to the 2nd step,

$\sum \limits_{j=1}^k2^j=2(2^k-1)$

Substitute it into the $\ast$

$\sum \limits _{j=1}^{k+1}2^j=\sum \limits _{j=1}^k2^j+2^{k+1}=2(2^k-1)+2^{k+1}=2^{k+1}-2+2^{k+1}=2\cdot 2^{k+1}-2=2^{k+2}-2=2(2^{k+1}-1)$

So, you have proved the initial statement

4 0

3 years ago

The sum of three consecutive multiples of 7 is 63 find these multiples

Leto [7]

Let three consecutive multiples of 7 be 7x,7x+7 and 7x+14

6 0

3 years ago

3) John Wayne died of cancer. In 1955, he was in Utah shooting the film The Conqueror. Across the state line, in Nevada, the U.S

-Dominant- [34]

Answer:

20.9 %, it is more than the national population 13.6%.

Step-by-step explanation:

Total number of persons = 220

died number of persons = 46

The percentage of died persons

$\frac{46}{220}\times 100 \\\\= 20.9 %$

So, it is more than the national population of 13.6 %.

6 0

3 years ago