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mash [69]
3 years ago
11

Have you ever sent a chain letter or chain e-mail or text? Best Friend Test Sample email chain letter: This is a best friend tes

t. Send this to 10 friends as fast as you possibly can and if u get it back u truly will know who ur friends are. If u break this chain u will severely have bad luck, I'm warning you so now u get to make a free wish!!!!!! Take the situation above and think about sending 10 emails and then those 10 people send 10 emails each and so on… You can see that the amount of people receiving emails starts growing extremely fast.
Mathematics
1 answer:
Anna007 [38]3 years ago
6 0

Answer:

what? Is this like a challenge or something?

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Explain how 2 different squares can be made using the number 9.
faltersainse [42]
You can make two squares with 8, and put a line through one of them making one square two triangles put together.
5 0
3 years ago
Find the sample size required to achieve the given margin of error with SD = 51.02 and z - score = 1.96. Round your answer to th
coldgirl [10]

Answer:

The sample size required is 2500.

Step-by-step explanation:

z-score:

In function of the margin of error M, the z-score is given by:

Z = \frac{M}{\frac{\sigma}{\sqrt{n}}} = \frac{M\sqrt{n}}{\sigma}

In this question, we have that:

\sigma = 51.02, M = 2, Z = 1.96

So

Z = \frac{M\sqrt{n}}{\sigma}

1.96 = \frac{2\sqrt{n}}{51.02}

2\sqrt{n} = 51.02*1.96

\sqrt{n} = \frac{51.02*1.96}{2}

(\sqrt{n})^2 = (\frac{51.02*1.96}{2})^2

n = 2500

The sample size required is 2500.

3 0
3 years ago
Paige and Cindy have been saving money. Paige started with $350 in her savings and deposits $25 into her savings each week. Cind
LUCKY_DIMON [66]

Answer:

D. 11

Step-by-step explanation:

T = total savings

w = number of weeks

Paige:

T = 350 + 25w

Cindy:

T = 190 + 40w

In how many weeks will Cindy have more money in her savings than Paige

Equate the total savings of both of them

350 + 25w = 190 + 40w

Collect like terms

350 - 190 = 40w - 25w

160 = 15w

w = 160/15

w = 10.67

Approximately,

In 11 weeks, will Cindy have more money in her savings than Paige

Check:

Paige:

T = 350 + 25w

= 350 + 25(11)

= 350 + 275

= 625

Cindy:

T = 190 + 40w

= 190 + 40(11)

= 190 + 440

= 630

3 0
3 years ago
Can you please give me the answer
IrinaK [193]

Step-by-step explanation:

This will help okay! I promise you, well I hope .

6 0
3 years ago
–4k + 5 ≤ 21 i need help please
Allushta [10]
Answer :
inequality form: k ≥ -4
OR
interval form: [-4, ∞)

6 0
3 years ago
Read 2 more answers
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