2 years ago

Applications of integers (PLEASE HELP)

Mathematics

1 answer:

Amiraneli [1.4K]2 years ago

5 0

Answer:

I can try to answer.

Step-by-step explanation:

1. 23

2. 25

3. week 4 is 29, and week 3 is 23

29-23=6

4. week 5 and 7 because on week 4 it was 29, it dropped to 25 on week 5. On week 6 it was 37, then dropped to 34 on week 7.

Im not rlly sure about 5, but ill answer it if I figure it out.

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The sides of a triangle have lengths of x, x + 5, and 25. If the longest side is 25, which of the following values of x would ma

Amiraneli [1.4K]

In a right angle, the sum of the squares of the two shorter sides is equal to the square of the longest side.
Here, the longest side is 25, the shorter sides are x and x+5.

$x^2+(x+5)^2=25^2 \\
x^2+x^2+10x+25=625 \\
2x^2+10x+25=625 \ \ \ |-625 \\
2x^2+10x-600=0 \ \ \ |\div 2 \\
x^2+5x-300=0 \\
x^2+20x-15x-300=0 \\
x(x+20)-15(x+20)=0 \\
(x-15)(x+20)=0 \\
x-15=0 \ \lor \ x+20=0 \\
x=15 \ \lor \ x=-20
$

The length of a side must be a positive number, so x=15.
The answer is C.

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3 years ago

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borishaifa [10]

Answer:

20 pounds divided by $4= 5

Step-by-step explanation:

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3 gallons coverted to cups

Oksana_A [137]

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