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iris [78.8K]
3 years ago
8

Can anyone help me please ? I’ll mark you as a brainliest.

Mathematics
1 answer:
garik1379 [7]3 years ago
7 0
I believe the answer would be c=12. i hope that’s what the question is asking for lol.
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Does 15/25 x 25/15 = 0?
sergejj [24]
No, it does not equal 0. Lets multiply it out and see what it actually equals.
15/25 * 25/15
15*25 / 25*15
375 / 375
Anything over itself is 1, so the final answer for the multiplication is 1.

4 0
3 years ago
−15 ÷ 5 = A number line going from negative 30 to positive 30. An arrow goes from 5 to 10, from 10 to 15, from 15 to 20.
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-3

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2 years ago
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3 years ago
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How many solutions are there for the system x^2+4y^2=100 and 4y-x^2=-20
never [62]
There are 5 solutions for this system.

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Add both 1 & 2 together. x^2 gets cancelled
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Then equation the becomes : y^2 + y -20 =0
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Solve for y :  y = -5 and y = 4
Using the values of y to find the values of x. From equation 1:
x^2 = 100 - 4y^2    x = /100 - 4y^2  (/ means square root) Replace values of y
y = -5, x = /100 - 4(-5)^2 = /100 - 100 = 0
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Thus we have 6 solutions y = -5, 4 and x = -6, 0, 6
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3 years ago
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Answer:

a i the answer

Step-by-step explanation:

l ≤ 12

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