Answer: -1.5, -1, -1/2, 1/4
Step-by-step explanation:
8n - 27≤ -n + 18
8n ≤ -n +18 +27
9n ≤ 45
n≤5
<h2>
Answer: 2x³ - 3x² + 7x + 8</h2>
Step-by-step explanation:
Sum = 4x³ - 3x² + 3x + 8 + (6x³ - 7x² + 4x) + (-8x³ + 7x²) <em>[write the terms as given by the quetion and group like terms]</em>
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⇒ Sum = (4x³ + 6x³ - 8x³) + (- 3x² - 7x² + 7x²) + ( 3x + 4x) + 8 <em> [complete the addition of like terms]</em>
<em />
∴ sum = 2x³ - 3x² + 7x + 8
Use ratios to solve this!
5:6 or 5/6 is the ration for Alex.
<span>Cross multiplication is used to solve this, so:
6x = 5(50) </span>
<span>6x = 250 </span>
<span>x = 250/6 </span>
<span>x = 41.67 which then rounds to
42 feet.
Also to your earlier question here is a screenshot of what the box should look like, and i have circled the attach file icon
</span>
Answer: 378.57mi²
Step-by-step explanation:
Formula = a²+2a√{(a²/4)+h²}
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