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Liula [17]
3 years ago
7

HELP ASAP PLZ

Mathematics
2 answers:
xz_007 [3.2K]3 years ago
7 0

Answer:

10!/3!

Step-by-step explanation:

i just took a test and got it right

Because repetition is not allowed, and there are 10 initial options for the 7 decisions that need to be made, we use the formula

n!/(n-r)! = 10!/(10-7)! = 10!/3!

marishachu [46]3 years ago
4 0

Answer:

There are 604,800 possible permutations.

Step-by-step explanation:

The order in which the digits are chosen is important, which means that the permutations formula is used to solve this question.

Permutations formula:

The number of possible permutations of x elements from a set of n elements is given by the following formula:

P_{(n,x)} = \frac{n!}{(n-x)!}

In this question:

7 digits from a set of 10(10 digits to 0-9). So

P_{(10,7)} = \frac{10!}{(10-7)!} = 604800

There are 604,800 possible permutations.

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Is -660.3 an integer?
Andreas93 [3]

Answer:

no

Step-by-step explanation:

you cannot find this number on a number line. it needs to be a full number with no decimal to be an integer

4 0
3 years ago
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Mae Ling earns a weekly salary of $310 plus a 6.5% commission on sales at a gift shop. How much would
Kryger [21]

Answer:

$325

Step-by-step explanation:

Mae Ling earns a weekly salary of $325 plus a 6.5% commission on sales at a gift shop. How much would she make in a work week if she sold $4,800 worth of merchandise?

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2 years ago
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Solving systems of equations using substitution p=q+3 4p+3q= -30
patriot [66]
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5 0
3 years ago
2^x-1=128<br><br><br> show work pls! thank u :)
hichkok12 [17]

Hello from MrBillDoesMath!

Answer:

Take you pick below!   (either x 8 or x = 7.01, approx, depending how the question is interpreted)




Discussion:

Interpretation 1

If the question is   2^(x -1)  = 128, then as 2^7 = 128,

x-1 = 7 so x = 8



Interpretation 2

If the question is (2^x -1) = 128, then..

2^x  = 128 + 1 = 129  =>

log(2^x) = log(129) =>

xlog(2) = log(129) =>

x = log (129) / log2 = 7.01

Regards,  

MrB

4 0
3 years ago
Can someone plz correct me plz
S_A_V [24]
The answer is D. You’d need to minus the area of the circle away from the area of the triangle to get the area of the shaded region
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2 years ago
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