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3 years ago

9

Someone please help

1 answer:

kogti [31]3 years ago

5 0

Answer:

I'm not 100% but I think it could be x4 and then +5?

Step-by-step explanation:

You might be interested in

15 players for a softball team show up for a game: (a) How many ways are there to choose 10 players to take the field? 3003 (b)

prohojiy [21]

Answer:

(a) 3003 ways

(b) 10897286400 ways

(c) 3002 ways

Step-by-step explanation:

Given

$n = 15$ --- 15 players

Solving (a) Ways of selecting 10 players.

This implies combination.

So, we have:

$r=10$

Using:

$^nC_r = \frac{n!}{(n-r)!r!}$

We have:

$^{15}C_{10} = \frac{15!}{(15-10)!10!}$

$^{15}C_{10} = \frac{15!}{5!10!}$

Simplify

$^{15}C_{10} = \frac{15*14*13*12*11*10!}{5!10!}$

$^{15}C_{10} = \frac{15*14*13*12*11}{5!}$

$^{15}C_{10} = \frac{15*14*13*12*11}{5*4*3*2*1}$

$^{15}C_{10} = \frac{360360}{120}$

$^{15}C_{10} = 3003$

Solving (b) Ways of assigning positions to 10 players.

This implies permutation.

So, we have:

$r=10$

Using:

$^nP_r = \frac{n!}{(n-r)!}$

We have:

$^{15}P_{10} = \frac{15!}{(15-10)!}$

$^{15}P_{10} = \frac{15!}{5!}$

Solve each factorial

$^{15}P_{10} = \frac{1307674368000}{120}$

$^{15}P_{10} = 10897286400$

Solving (c) Ways of choosing at least 1 woman

We have:

$Men = 10$

$Women = 5$

Ways of selecting 10 players is: (a) 3003 ways

Since the number of men are 10, there is 1 way of selecting 10 men (i.e. selection without women)

Using complement rule:

At least 1 woman = Total - No woman

$At\ least\ 1\ woman = 3003 - 1$

$At\ least\ 1\ woman = 3002$

5 0

3 years ago

(3.2 * 10000000) -3

andreev551 [17]

The exponents distribute over factors:

$(ab)^c = a^c \times b^c$

so, you have

$(3.2 \times 10^6)^{-3} = 3.2^{-3} \times (10^6)^{-3}$

Let's focus on each factor: applying the definition of negative exponents, you have

$3.2^{-3} = \cfrac{1}{3.2^3} \approx 0.03$

While for the power of 10, you can use the following rule

$(a^b)^c = a^{bc}$ to write

$(10^6)^{-3} = 10^{6\cdot (-3)} = 10^{-18}$

So, the expression evaluates to

$0.03\times 10^{-18} = 3\times 10^{-20}$

3 0

4 years ago

The question itself if pretty explanatory I need this done quick please

aleksandr82 [10.1K]

Answer:

2 $\sqrt{5}$

Step-by-step explanation:

8/4 = 2

$\sqrt{20} / \sqrt{4}$ = $\sqrt{5}$

Therefore: 2 $\sqrt{5}$

Hope this helps!

3 0

3 years ago

Read 2 more answers

Please please help me on this.

quester [9]

Answer:

A

Step-by-step explanation:

An equation in the form y=kx represents something increasing at a constant <u>rate</u>

5 0

3 years ago

Please answer correctly thanks

zloy xaker [14]

The area of any rectangle is the product of its length and its width - $A=lw$ . We've been given the area and the length, and we can use those values to solve for the width:

$95.4=10.6w\\ \frac{95.4}{10.6}=w\\\\ 9=w$

So, the length of the missing side is 9 ft.

3 0

3 years ago