Answer: <em>(-2, -1) and (3, 14).</em>
Step-by-step explanation:
<em>x² + 2x - 1 = 5 + 3x</em>
<em>x² + 2x - 1 - 5 - 3x = 0</em>
<em>x² - x - 6 = 0</em>
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<em>y = 5 + 3x</em>
<em>y₁ = 5 + 3 * (-2) = -1</em>
<em>y₂ = 5 + 3 * 3 = 14</em>
<em>The pair of points representing the solution set of this system of equations is (-2, -1) and (3, 14).</em>
Answer:
3 < x < 11
Step-by-step explanation:
We use the triangle inequality to figure out the longest possible side and shortest possible side. The shortest will be 3 (8-5 = 3) and the longest will be 11 (3+8 = 11) and we write an inequality.
-30x - 20: We can see that both numbers have a factor of -10, because 30 and 20 are multiples of 10 and -30x and -20 are both negative. So the factored form is -10(3x + 2).
12x - 28: The greatest common divisor of the two numbers is 4, so the factored form is 4(3x - 7).
-10x - 5: Like the first problem, the biggest factor is -5, so the factored form is -5(2x + 1).
The answer is 20 square meters
Step-by-step explanation:
hope this help have a great day