At the begining of last year, there were 368 students at the elementary school.By the beginning of this year,72 of those students had moved.About how many students started the school this year?

The number of arrangements is an illustration of permutations.

The number of arrangement is 5040

The given parameter is:

[tex]n = 7[/tex] --- number of days

[tex]r = 7[/tex] --dinners for 7 days

So, the number of different arrangement is

[tex]^nP_r = \frac{n!}{(n - r)!}[/tex]

Substitute known values

[tex]^7P_7 = \frac{7!}{(7 - 7)!}[/tex]

[tex]^7P_7 = \frac{7!}{0!}[/tex]

[tex]^7P_7 = \frac{5040}{1}[/tex]

[tex]^7P_7 = 5040[/tex]

Hence, the number of arrangement is 5040

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Answer:c

Step-by-step explanation:i did it

Answer:

f(8f + 7)

Step-by-step explanation:

8f^2 + 7f

= f(8f + 7)

The factor of 8f² + 7f is f(8f + 7).

Factorization in mathematics is the process of dividing a large number into smaller ones that, when multiplied together, give you the original number. Factorization is the process of dividing a number into its components or divisors.

Given:

An expression,

8f² + 7f.

To find the factor:

8f² + 7f,

= f(8f + 7)

Therefore, f(8f + 7) is the factor.

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Answer:

260

Step-by-step explanation:

BRAINLIEST PLS

Answer:3.657 hope this helps

Step-by-step explanation:

Area of a rectangle= length × width/breadth

7 × 3t-4 = 56 cm^2

3t-4 = 56÷7

3t-4 = 8

3t = 8+4

3t= 12

t = 12/3

t = 4

hope this helps

Answer:

Hello there your answer is 12 x  +  5 y  =  − 10!

Answer:

3/4

Step-by-step explanation:

its right

Answer:

D. y = |x + 5| - 2

Step-by-step explanation:

The peak of the graph is formed at the point (2, 5)

that means the function must be such that the value of y is 5 when x is 2.

Checking D option:

y= | x + 5| - 2

5 = | 2 + 5| - 2

5 = 7 - 2

5 = 5

LHS = RHS

this means that the given graph is represented by the equation in option D.

Therefore, it's D

_________________

You'll have to check for all options by placing the values of x and y repetitively in all of them.

There, LHS ≠ RHS.

Answer:

2 hours and 30 minutes

Step-by-step explanation:

20/8 = 2 hours and 30 minutes

Answer:

80 x 10 exponet -6

Step-by-step explanation:

So let's start it off at 80, and let's x it by 10 exponet 1

8.0 if we add 5 more exponets the . will move to the area in the photo shown above. Basically every exponet that is there, you move the dot by that much.

Answer:

The flagpole is 12 feet

Step-by-step explanation:

The boy's shadow is half of the flagpole's shadow. So the flagpole is 2 times as much as 6 ft because the boy is six feet. 6 x 2 = 12. So the final answer is 12 ft.

Answer:

what chart??????????????????????????????????????????

Step-by-step explanation:

Step-by-step explanation:

using a positive exponent

4^-9 = 1/ 4^9

__________

[tex] \: [/tex]

[tex] {a}^{ - m} = \frac{1}{ {a}^{m} } [/tex]

[tex] {4}^{ - 9} = ...[/tex]

[tex] \longmapsto \frac{1}{ {4}^{9} } [/tex]

[tex] \longmapsto \frac{1}{4 \times 4 \times 4 \times 4 \times 4 \times 4 \times 4 \times 4 \times 4} [/tex]

[tex] \longmapsto \blue{ \frac{1}{262.144}} [/tex]

Answer:

c and b

Step-by-step explanation:

behdjdurjnrnrjdjdjdi

Answer:

Don't quite see how this should fall into the mathematics category

The number of cyclists the group needs to raise at least $57,000 must be at least 1000 cyclists

Let x represent the number of cyclists.

Since, the activists receive $60 per cyclist entry and $15,000 in donations, hence:

Revenue = 60x + 15000

Also, the cost of the race is $18 per entry, hence:

Cost = 18x

They need to raise at least $57,000, hence:

Profit ≥ 57000

Revenue - Cost ≥ 57000

(60x + 15000) - 18x ≥ 57000

42x ≥ 42000

x ≥ 1000

Therefore the number of cyclists the group needs to raise at least $57,000 must be at least 1000 cyclists

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Answer:

TRUEeeee

Step-by-step explanation:

bec. there beetwen have a

Answer:

D. y = 9/4x

Step-by-step explanation:

First, find the gradient or slope, m

m = change in y ÷ change in x

m = (0 - -9) ÷ (0 - -4)

m = 9 ÷ 4 = 9/4

There is no y intercept, since the line goes through the origin (0,0)

y = 9/4x

Answer:

D.) y=9/4x

Step-by-step explanation:

The graph that I did has the line going through (0,0) and (-4,-9), like the question states.

Answer:

answer 3

Step-by-step explanation:

point slope form is

[tex]y - y1 = m(x - x1)[/tex]

Answer:

1 : 2  =  3 : 6  =  4 : 8

Step-by-step explanation:

All three ratios equal 1/2, so all three ratios are equal to each other.

Hopefully this helps!

Brainliest please?

Answer:

$38 for 2 sweaters

Step-by-step explanation:

Every price for all other sweater options are divisible by 24, since it is the unit price (meaning 1 sweater = $24). 38 is not divisible by 24, but by 19. This means it does not follow the unit price. It would be a special sale.

Answer:

C, E and D are th correct answers

Answer:

Step-by-step explanation:

If your screen shows the numbers in a different order then it is Adc