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3 years ago

How many ways can a person select 3 videotapes from a collection of 10 tapes?

1 answer:

6 0

If the 10 videotapes are distinct (different) and the order of selection is immaterial, then there are
C(10,3)=10!/(3!(10-3)!)=10!/(3!7!)=10*9*8/(1*2*3)=120
ways to select three videotapes out of 10.

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Felicia has $350 to deposit into two different savings accounts. Felicia will deposit $200 into Account I, which earns 4.5% annu

Alisiya [41]

Total price after 6 years in Account I is :

$P _1=P_o+\dfrac{P_ort}{100}\\\\P_1=200+\dfrac{200\times 4.5 \times 6}{100}\\\\P_1=\$254$

Total price after 6 years in Account II is :

$P_2=P_o(1+\dfrac{r}{n})^{nt}\\\\P_2=150(1+\dfrac{3.34}{1})^{1\times 6}\\\\P_2=\$1002373.64$

Total balance, $T=P_1+P_2=1002373.64+254=\$1002627.64$

Hence, this is the required solution.

5 0

3 years ago

Elisa withdrew $20 at a time from her bank account and withdrew a total if $140. Francis withdrew $45 at a time from his bank ac

Dvinal [7]

<u>Answer</u>:

Elisa.

She withdraws $20 at a time and has a star of $140.

140 ÷ 20 = 7.

Francis withdraws 45 dollars at a time and has a start of $270.

270 ÷ 45 = 6

Elsa has the greater number of withdrawals.

Plz rate as Brainliest

8 0

3 years ago

A shopping mall has $99 to spend on new tiles for the floor. If each tile costs $9, how many tiles can the mall buy?

SVETLANKA909090 [29]

<h3>♫ - - - - - - - - - - - - - - - ~Hello There!~ - - - - - - - - - - - - - - - ♫</h3>

➷ 99/9 = 11

The mall can buy 11 tiles

➶ Hope This Helps You!

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6 0

3 years ago

Read 2 more answers

What is the length of hn¯¯¯¯¯¯ ? segment a n with point h between a and n. congruency markings on segment a h and segment h n. s

stepladder [879]

The answer is #K12. hope this helps

7 0

4 years ago

Read 2 more answers

HELP PLEASE !!!!!!! Pythagorean theorem

Phoenix [80]

Answer:

$\large\boxed{x=8\sqrt3}$

Step-by-step explanation:

The Pythagorean theorem:

$leg^2+leg^2=hypotenuse^2$

We have:

$leg=8, leg=x,\ hypotenuse=16$

Substitute:

$8^2+x^2=16^2$

$64+x^2=256$ <em>subtract 64 from both sides</em>

$x^2=192\to x=\sqrt{192}\\\\x=\sqrt{(64)(3)}\\\\x=\sqrt{64}\cdot\sqrt3\\\\x=8\sqrt3$

4 0

4 years ago