You want to isolate one of the variables (x or y) so you can plug it into the other equation. The easiest one is isolating the 2nd equation.
3x² - 16x + 13 - y = 0 Add y on both sides
3x² - 16x + 13 = y
You can use this and plug it into the first equation
y - 12x + 15 = 3x²
(3x² - 16x + 13) - 12x + 15 = 3x²
3x² - 16x + 13 - 12x + 15 = 3x² Combine like terms
3x² - 28x + 28 = 3x² Subtract 3x² on both sides
-28x + 28 = 0 Add 28x on both sides
28 = 28x Divide 28 on both sides
1 = x
Now that you know x, you can plug it into either of the equation to find y
3(1)² - 16(1) + 13 - y = 0
3 - 16 + 13 - y = 0
-y = 0 Divide -1 on both sides
y = 0
x = 1, y = 0
Answer:
$1000 at 1.03%p/a
Step-by-step explanation:
Answer:
|2a + b| = 2√(3) + 1
Step-by-step explanation:
|a| = √(3)
|b| = 1
θ = 5π/6
For scalar vectors, A.B = |a|.|b|.cosθ
a
|2a| = 2*√(3) = 2√(3)
|2a + b| = 2√(3) + 1
Since we don't have to find the scalar or dot product, there's no need to use the formula requiring the angle between them
|2a + b| = 2√(3) + 1
Usingthe percent rule, It is found that 6 is 12.5 percent of 48.
Suppose a number is 'a' Suppose another number is 'b' We want to know how much percent of 'b' is 'a'. Then, it is calculated as:
(in percentage)
We are asked to find that 6 is what percent of 48.
Let x is the unknown percent.
100% / x% = 48/6
Now multiply both sides of the equation by x
(100/x)x = (48/6)x
Then divide both sides of the equation by (8) to get x
100 = 8x
100/8 = x
12.5 = x
x=12.5
Hence, It is found that 6 is 12.5 percent of 48.
Learn more about percent here:
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c x a = 18
what does a, b and c equal?
provide working for answers/explain your answer briefly
Answer:
Step-by-step explanation:
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