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3 years ago

HELP QUESTION ONE BABABOI

Mathematics

1 answer:

Olenka [21]3 years ago

6 0

Answer:

x = 0, y = 3

Step-by-step explanation:

When using graphing to solve a system of equations, the intersection point is the solution. Most points on a graph follow a certain way of writing them and it looks like this: (x, y).

Here, the coordinates of the intersection point is: (0, 3). Thus the solution would be:

(x, y)

(0, 3)

x = 0, y = 3

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Find 9P9 and 9C9. Why do the answers differ?

sveta [45]

We have been given two expressions $9P9\text{ and }9C9$ . We are asked to find the value of each.

To find 9P9, we will use permutations formula.

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

P = Number of permutations,

n = The total number of objects in the set,

r = Number of objects being chosen from the set.

$9P9=\frac{9!}{(9-9)!}$

$9P9=\frac{9\cdot 8\cdot 7\cdot 6\cdot 5\cdot 4\cdot 3\cdot 2\cdot 1}{(0)!}$

$9P9=\frac{362880}{1}$ Using $0!=1$

$9P9=362880$

To find 9C9, we will use combinations formula.

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

C = Number of combinations,

n = The total number of objects in the set,

r = Number of objects being chosen from the set.

$9C9=\frac{9!}{9!(9-9)!}$

$9C9=\frac{9!}{9!(0)!}$

$9C9=\frac{9!}{9!\cdot 1}$ Using $0!=1$

Cancelling out $9!$ , we will get:

$9C9=\frac{1}{1}$

$9C9=1$

The answers differ because order. With permutations we care about the order of the elements, while with combinations we don't.

3 0

3 years ago

. Explain the Error: Katie said, “All Negative numbers are integers.” What was her error?

Triss [41]

Answer:

All Negative numbers are NOT integers

Step-by-step explanation:

For example, If we take the negative number, -5/6

It is NOT a integer, it is a rational number.

Thus, this statement is wrong.

7 0

3 years ago

Read 2 more answers

Plz help!! asap!!

Marat540 [252]

Multiply 64 times .30 =?
Then take the answer you get and subtract it from $64 then you should get your answer of $44.80 please work it out it’s not too hard it is actually pretty easy.
Hope this helps

5 0

3 years ago

Read 2 more answers

24s2 - 30s + 12 ÷ 6s

Inessa [10]

Answer:

24x2

with MDAS :

=48/6

=30-7

=23+12

without MDAS:

=48-30

=18+12

=30/6

8 0

3 years ago

Read 2 more answers

9/11 = ?/22<br> a. 12<br> b. 9<br> c. 4<br> d. 18

svlad2 [7]

18/22 = 2*9/2*11 = 9/11

Therefore, your answer is 18

7 0

3 years ago