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Tju [1.3M]
3 years ago
11

Solve this system of equations algebraically:

Mathematics
2 answers:
Leona [35]3 years ago
6 0
Y - 10 = 11 x + x²
y - 12x = 30
____________
y = 12 x + 30
12 x + 30 - 10 = 11 x + x²
x² - x - 20 = 0
x (12) = 1+/- √ (1 + 80 ) /2
x 1 = (1 - 9) / 2 = -4
x 2 = ( 1 + 9 ) /2
x 2 = 5
y 2 = 30 + 12 · 2 = 30 + 60 = 90
The second solution is:
( 5, 90 ).  
Radda [10]3 years ago
4 0

Answer:

The second solution is 5,90

Step-by-step explanation:

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Given the sequence {-8, 16, -32, 64, ... , a₇} we know the following

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Step-by-step explanation:

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We are given the ratios:

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The combined ratio a:b:c will include all three variables in one single expression.

Before finding it, we must have a common number for the common variable (b). Since b is 3 in the first ratio and 4 in the second ratio, we must equate both by finding the LCM of 3 and 4=12, thus both ratios will be amplified as follows:

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