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Lera25 [3.4K]
2 years ago
6

- 5x - 2y <6 y >-x+1

Mathematics
1 answer:
butalik [34]2 years ago
5 0

Answer:

i dont know im only in 7th

Step-by-step explanation:

teehee

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If -5 is a root of the quadratic equation 2x^2+px+15=0 and the equation p(x^2+x) +k=0 has equal rootsv then find p and k
grigory [225]

Answer:

p=13, k = 3.25

Step-by-step explanation:

First, determine p:

2x^2+px+15=0\\x=-5:\\2(-5)^2+p(-5)+15=0\\-5p+65=0\\\implies p=13

Use this value in the second equation

13(x^2+x)+k=0

and write the condition for that equation having equal roots, i.e., its determinant must equal 0:

13x^2+13x+k=0\\D=b^2-4ac=13^2-4\cdot13\cdot k=0\\52k=169\implies k = 3.25


4 0
3 years ago
The perimeter of a rectangular window is 2626 feet. The width of the window is 33 feet more than the length. What are the dimens
erma4kov [3.2K]
Alright, if the width is w and the length is l, 
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3 years ago
PLEASE HELP 20 POONTS! Of the students at Creekview Middle School, 30% are in 6th
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Answer:

A

Step-by-step explanation:

You look for groups with the number 1,2,3 in

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2 years ago
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