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puteri [66]
2 years ago
5

8x-3y=3 2x+y=-15 solve by eliminaion.

Mathematics
2 answers:
Andrei [34K]2 years ago
6 0
8x - 3y = 3 -> y = 8/3x - 1
2x + y = -15 -> y = 2x - 15
Darina [25.2K]2 years ago
5 0

Answer:

8x - 3y = 3      ->      y = 8/3x - 1

2x + y = -15      ->      y = -2x - 15

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Answer:

-2c^2 + c

Step-by-step explanation:

5 0
3 years ago
jeanine Baker makes floral arrangements. She has 13 different cut flowers and plans to use 7 of them. How many different selecti
Ksju [112]

A total of 1,716 selections of the 7 flowers are possible.

Step-by-step explanation:

Step 1:

There are 13 flowers from which Jeanine Baker plans to use 7 of them.

To determine the number of selections that are possible we use combinations.

The formula for combinations is; ^{n} C_{r}=\frac{n !}{(n-r) ! r !}.

Step 2:

In the given formula, n is the total number of options and r is the number of options to be selected.

For this question, n = 13 and r=7.

So ^{13} C_{7}=\frac{13 !}{(13-7) ! 7 !} = \frac{13 !}{(6) ! 7 !} = 1,716.

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3 0
3 years ago
There are 7 bags. 2 bags are big. The rest are small.How many bags are small?
siniylev [52]
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6 0
3 years ago
one end of a ten- foot ladder is four feet from the base of a wall . how high on the does the top of the ladder touch ??​
Jet001 [13]

Answer:

9,2 feet

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Use the Pythagorean theorem: height= sqrt(10^2-4^2)= sqrt(84) =9,2 ~

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8 0
3 years ago
A and b are odd numbers.
stepladder [879]

Answer:

2(3+7)=20 and 20 is a multiple of 4

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4 times 5 equals 20, which makes it a multiple of 4

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8 0
3 years ago
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