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3 years ago

If you are at school, then you are working hard.

Mathematics

1 answer:

Lena [83]3 years ago

8 0

Oooooooooooooooooooooooooooooooooooolol

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If someone can guess my fav anime i'll give em brainliest:)

mr Goodwill [35]

Answer:

can I ask a question?

is it an mammal or a reptile ?

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3 years ago

Read 2 more answers

Plz plz answer this 11 points :)

andrew-mc [135]

Answer:

A: 2.9 x $4.25 = 12.325 or 12.33

B: 1.6 x $5.15 = $8.24

$12.33 + $8.24 = $20.57

Step-by-step explanation:

7 0

3 years ago

A student dance committee is to be formed consisting of 2 boys and 4 girls. If the membership is to be chosen from 5 boys and 6

Paha777 [63]

150 different committees are possible

<h3>Solution:</h3>

Given that a student dance committee is to be formed consisting of 2 boys and 4 girls

The membership is to be chosen from 5 boys and 6 girls

To find : number of different possible committees

A combination is a selection of all or part of a set of objects, without regard to the order in which objects are selected

The formula for combination is given as:

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

where "n" represents the total number of items, and "r" represents the number of items being chosen at a time

We have to select 2 boys from 5 boys

So here n = 5 and r = 2

$\begin{aligned} 5 C_{2} &=\frac{5 !}{(5-2) ! 2 !}=\frac{5 !}{3 ! 2 !} \\\\ 5 C_{2} &=\frac{5 \times 4 \times 3 \times 2 \times 1}{3 \times 2 \times 1 \times 2 \times 1} \\\\ 5 C_{2} &=10 \end{aligned}$

We have to select 4 girls from 6 girls

Here n = 6 and r = 4

$\begin{aligned} 6 C_{4} &=\frac{6 !}{(6-4) ! 4 !}=\frac{6 !}{2 ! 4 !} \\\\ 6 C_{4} &=\frac{6 \times 5 \times 4 \times 3 \times 2 \times 1}{2 \times 1 \times 4 \times 3 \times 2 \times 1}=15 \end{aligned}$

Committee is to be formed consisting of 2 boys and 4 girls:

So we have to multiply $5 C_{2}$ and $6 C_{4}$

$5 C_{2} \times 6 C_{4}=10 \times 15=150$

So 150 different committees are possible

7 0

3 years ago

How can I divide by zero?

andrezito [222]

I don't think that is even possible :|

I was taught that dividing by zero is undefined. Dividing 1 by 0 means 1/0 which makes no sense at all.

But all I'm saying is that we can't divide by zero.

Try this 0/0 does it make sense to you? Nah that is indeterminate.

7 0

3 years ago

You are in charge of the Annual Powder Puff football game. You designed a t-shirt to sell during the event. A company charges $7

vekshin1

We're looking for C(h), where h is the hundreds of shirts. The fact that they cost "$500 for each additional 100 t-shirt" tells us the slope is 500. Knowing that 1 hundred costs 750, we could use point-slope at this point: (C - 750)/(h - 1) = 500C - 750 = 500h - 500C(h) = 500h + 250 We can check that C(1) = 750 and C(2) = 1250, as we expect. I'll leave it to you to evaluate C(5).

7 0

3 years ago