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Lilit [14]
2 years ago
7

Please pick one of the options.

Mathematics
1 answer:
olchik [2.2K]2 years ago
6 0

9880 different possibilities are there in Sally's new combination option second 9880 is correct.

<h3>What is permutation and combination?</h3>

A permutation is the number of different ways a set can be organized; order matters in permutations, but not in combinations.

We have:

Total unique numbers consists in a Sally locker = 3

From the digits 0 to 39

Total numbers = 40

Apply combination formula:

= C(40, 3)

= 40!/(3!37!)

= 9880

Thus, 9880 different possibilities are there in Sally's new combination option second 9880 is correct.

Learn more about permutation and combination here:

brainly.com/question/2295036

#SPJ1

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Answer: 18,20

Step-by-step explanation:

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2 years ago
De║bc, ad=2cm and bd=3cm, then area(Δabc):area(Δade) is equal to
xxTIMURxx [149]

Answer:

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Step-by-step explanation:

hope it helps brainliest me please

5 0
2 years ago
A line that includes the points ( - 2, - 9) and ( - 6,n) has a slope of - 1. What is the value of n?
Genrish500 [490]

Write out the slope formula:

m = (change in y) / (change in x)

Here,

m = n-(-9) / (-6-(-2)) = (n+9 / (-4)

Now set this slope equal to -1 and solve the resulting equation for n:

(n+9) / (-4) = - 1, or   (n+9) / 4 = 1, or n+9 = 4.  Then n = -5.

7 0
3 years ago
Multiply (5y+x)(5y-x)
mestny [16]

Answer:

25y²-x²

Step-by-step explanation:

6 0
2 years ago
25)
snow_tiger [21]

The surface area of the figure illustrated will be 286 yards²

<h3>How to calculate the area?</h3>

The surface area of a solid object simply implies the measure of the total area which the surface of an object occupies. This is typically done by adding all the areas on the surface of the object.

It should be noted that the surface area of a cuboid will be:

= 2(lw + lh + wh)

w = width = 7

l = length = 9

h = height = 5

Surface area = 2(lw + lh + wh)

= 2(7 × 9) + 2(9 × 5) + 2(7 × 5)

= 126 + 90 + 70

= 286 yards²

Therefore, the surface area of the solid will be 286 yards².

Complete question:

Find the surface area of the solid given that the length is 9 yards, the width is 7 yards, and the height is 5 yards.

Learn more about area on:

brainly.com/question/25292087

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3 0
2 years ago
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