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nalin [4]
3 years ago
7

Verify if (Five-thirds, negative two-thirds) is a solution to the system of equations.

Mathematics
1 answer:
andrey2020 [161]3 years ago
8 0

Answer:

Yes, because substituting these values into both equations forms two true statements

Step-by-step explanation:

just did it

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In the following​ exercise, does the problem involve permutations or​ combinations? Explain your answer. One hundred people purc
Blizzard [7]

Answer: Permutation is involved , since order of prizes matters.

The number of different ways the prizes can be​ awarded =95060

Step-by-step explanation:

Given : Total number of people purchase lottery tickets =100

The number of prizes = 3

Since each prize can be claimed by only one person.

So order matters here, there for we use permutations .

The number of permutations of n objects taken m at a time is given by :-

^nP_m=\dfrac{n!}{(n-m)!}

Then, the number of different ways the prizes can be​ awarded :-

^{100}P_{3}=\dfrac{100!}{(100-3)!}=\dfrac{100!}{97!}\\\\=100\times98\times97=950600

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3 years ago
Does 3+ mean 3 and up or more than 3? This is a stupid question, but I don't remember lol
gregori [183]
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3 years ago
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Can someone please help me I really need help it’s my last question
Svetach [21]

Answer:

x^2+11x+30

Step-by-step explanation:

This is a parallelogram.

Area of a parallelogram can be found with:

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Plug our values in.

A=(x+6)(x+5)

FOIL-

First: x*x=x^2

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Inside: 6*x=6x

Last: 6*5=30

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Combine like terms.

x^2+11x+30

7 0
2 years ago
Use the discriminant to determine the number and type of solutions the equation has.
White raven [17]
x^2 + 8x + 12 = 0\\ \\a=1 , b= 8, c= 12 \\ \\ \Delta =b^2-4ac = 8^2 -4\cdot1\cdot12= 64-48= 16\\ \\\Delta > 0 \\ \\ Answer : \ C. \ \ two \ rational \ solutions


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Answer:

17.83 km

Step-by-step explanation:

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